[go: up one dir, main page]

CN106626662B - Sandwich structure composite material and preparation method thereof - Google Patents

Sandwich structure composite material and preparation method thereof Download PDF

Info

Publication number
CN106626662B
CN106626662B CN201610849242.7A CN201610849242A CN106626662B CN 106626662 B CN106626662 B CN 106626662B CN 201610849242 A CN201610849242 A CN 201610849242A CN 106626662 B CN106626662 B CN 106626662B
Authority
CN
China
Prior art keywords
composite material
fiber reinforced
reinforced thermoplastic
fiber
continuous
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201610849242.7A
Other languages
Chinese (zh)
Other versions
CN106626662A (en
Inventor
巫俊斌
文峰
汪应山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Rookie New Material Ltd By Share Ltd Shenzhen Branch
Guangdong Xinxiu New Material Co Ltd
Original Assignee
Guangdong Rookie New Material Ltd By Share Ltd Shenzhen Branch
Guangdong Xinxiu New Material Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Rookie New Material Ltd By Share Ltd Shenzhen Branch, Guangdong Xinxiu New Material Co Ltd filed Critical Guangdong Rookie New Material Ltd By Share Ltd Shenzhen Branch
Priority to CN201610849242.7A priority Critical patent/CN106626662B/en
Publication of CN106626662A publication Critical patent/CN106626662A/en
Application granted granted Critical
Publication of CN106626662B publication Critical patent/CN106626662B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/14—Layered products comprising a layer of synthetic resin next to a particulate layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14467—Joining articles or parts of a single article
    • B29C45/14508—Joining juxtaposed sheet-like articles, e.g. for making trim panels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1657—Making multilayered or multicoloured articles using means for adhering or bonding the layers or parts to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1671—Making multilayered or multicoloured articles with an insert
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/08—Deep drawing or matched-mould forming, i.e. using mechanical means only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
    • B29C69/02—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore of moulding techniques only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B32B27/365—Layered products comprising a layer of synthetic resin comprising polyesters comprising polycarbonates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/16—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer formed of particles, e.g. chips, powder or granules
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L81/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur with or without nitrogen, oxygen or carbon only; Compositions of polysulfones; Compositions of derivatives of such polymers
    • C08L81/02—Polythioethers; Polythioether-ethers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14467—Joining articles or parts of a single article
    • B29C2045/14532—Joining articles or parts of a single article injecting between two sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14467—Joining articles or parts of a single article
    • B29C2045/1454—Joining articles or parts of a single article injecting between inserts not being in contact with each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/24—All layers being polymeric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/24—All layers being polymeric
    • B32B2250/244—All polymers belonging to those covered by group B32B27/36
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0223—Vinyl resin fibres
    • B32B2262/023—Aromatic vinyl resin, e.g. styrenic (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/103—Metal fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/106—Carbon fibres, e.g. graphite fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/02—Synthetic macromolecular particles
    • B32B2264/0214—Particles made of materials belonging to B32B27/00
    • B32B2264/0264—Polyamide particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/02—Synthetic macromolecular particles
    • B32B2264/0214—Particles made of materials belonging to B32B27/00
    • B32B2264/0278—Polyester particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/10—Inorganic particles
    • B32B2264/101—Glass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558—Impact strength, toughness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/718—Weight, e.g. weight per square meter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/72—Density
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00—Electrical equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • B32B2605/08—Cars
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/002—Physical properties
    • C08K2201/003—Additives being defined by their diameter
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/08—Polymer mixtures characterised by other features containing additives to improve the compatibility between two polymers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Medicinal Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The present invention relates to sandwich structure composite materials and preparation method thereof.The composite material includes continuous fiber reinforced thermoplastic composite material skinning layer and the discontinuous fiber reinforced thermoplastics being clipped between continuous fiber reinforced thermoplastic composite material skinning layer injection molding laminboard layer；Preparation method is：The raw material of plastic grain is subjected to mixing pelletizing, obtains discontinuous fiber reinforced thermoplastics particle；Continuous fiber reinforced thermoplastic composite material sheet material is shaped to continuous fiber reinforced thermoplastic composite material covering using molding die；It will be embedded into injection mold after continuous fiber reinforced thermoplastic composite material covering preheating after two formation of lots, between discontinuous fiber reinforced thermoplastics particle is injected in two pieces of continuous fiber reinforced thermoplastic composite material coverings again, sandwich structure composite material is formed.Sandwich structure composite material product strength and rigidity prepared by the method for the invention is high, and density is low, light-weight, realizes lightweight, slimming；And it can be molded with 3D.

Description

Sandwich structure composite material and preparation method thereof
Technical field
The present invention relates to technical field of composite preparation, and in particular to a kind of sandwich structure composite material and its preparation side Method.
Background technology
Injection molding technology is one of the main method for producing discontinuous fiber enhancing composite material, and raw material is typically chosen short It cuts, long fiber reinforced thermoplastic composites pellet (LFT) or tubular molding compound (BMC), main technique principle are by material Barrel is added from hopper, material is fed forward and is compacted under screw drive, while heated and shear action, gradually sends out Raw to be plasticized, melt and uniformly mix, last material is under high pressure, high speed by the way that in nozzle injection to mold cavity, solidification cools down Product is obtained after sizing.Injection molding technique is with a long history, is widely used, and major advantage is short molding cycle, energy consumption is small, is produced Product precision is high, and product plastic complex-shaped and with inserts, a mould can produce multiple products simultaneously, therefore production efficiency is high. The disadvantage is that continuous fiber reinforced composite materials cannot be produced.
The performance of sandwich depends primarily on the spacing between the performance and panel of panel (covering), and the spacing of panel is got over Greatly, geometry inertia is away from bigger, and then bending stiffness is bigger.The panel of sandwich is generally glass/carbon-fiber composite material；Core The stress that material is born is relatively small, therefore light material may be selected to mitigate the quality of component.For panel, primary concern is that Strength and stiffness of material, but for core material, main purpose be amplitude peak mitigate quality, protected between upper and lower panel It while holding certain distance, needs to bear certain pressure and shear stress, to maintain the stabilization of panel.Common core material has bee Nest, foamed plastics and cork wood etc..Cellular material either aluminum honeycomb, Nomex honeycombs or polymer honeycomb have be difficult to 3D at The characteristics of type is processed, is also limited by the performance of product thickness and intermediate gelatine layer.And cork wood as sandwich material with cellular material one Sample needs intermediate gelatine layer, and the risk for increasing unreliability is also difficult to 3D processing and formings.Foam of polymers such as PVC, PS, PUR, SAN, All at 250 DEG C hereinafter, most of be less than 200 DEG C, compression strength is less than the foams such as PEI, PMI and PPSU heat distortion temperature more 5MPa can deform when enhancing composite material hot binding with thermoplastic fibre.In addition the 3d of foam of polymers was molded Journey is complicated, it is difficult to meet the design requirement of sandwich structure composite material diversification.The sandwich of typical three kinds of core materials is also deposited It is less than 10MPa in the low disadvantage of compression strength, such as foam of polymers compression strength, cork wood compression strength is less than 15MPa, it is difficult to full In the lightweight structure field of sufficient high compressive strength demand.
Invention content
Based on this, the present invention provides a kind of sandwich structure composite material, and product strength and rigidity are high, and density is low, weight Gently, compression strength is high, realizes lightweight, slimming；And it can be molded with 3D.
The present invention also provides the preparation methods of above-mentioned sandwich structure composite material.
In order to achieve the object of the present invention, the present invention uses following technical scheme：
A kind of sandwich structure composite material comprising：Two layers of continuous fiber reinforced thermoplastic composite material skinning layer and The discontinuous fiber reinforced thermoplastics note being clipped between two layers of continuous fiber reinforced thermoplastic composite material skinning layer Mould laminboard layer；The resin matrix of the continuous fiber reinforced thermoplastic composite material skinning layer enhances thermoplastic with discontinuous fiber The resin matrix of property plastic injection laminboard layer fuses together.
The invention also discloses following technical schemes：
A kind of preparation method of sandwich structure composite material comprising following steps：
Thermoplastic, hollow glass micropearl, compatilizer, coupling agent, antioxidant, lubricant and discontinuous fiber are provided, And continuous fiber reinforced thermoplastic composite material sheet material, forming jig, molding die and injection mold；
By the thermoplastic, hollow glass micropearl, compatilizer, coupling agent, antioxidant, lubricant and discontinuous fibre Dimension is mixed, and then pelletizing obtains discontinuous fiber reinforced thermoplastics particle；
The continuous fiber reinforced thermoplastic composite material sheet material is put into using vacuum cup in forming jig, machine is passed through Between the forming jig is placed in two infrared heaters by tool hand, the infrared heater is by the continuous lod thermoplastic Property composite material sheet quickly heat up to hot-forming temperature, then move the forming jig and composite sheet to the shaping mould In tool, the forming jig is taken out, closes the molding die, after preset time, the continuous fiber reinforced thermoplastic is compound Material sheet is shaped to preset shape, obtains continuous fiber reinforced thermoplastic composite material covering；
Two pieces of continuous fiber reinforced thermoplastic composite material coverings are preheated, the note is then respectively embedded in At two die faces of mould, then the discontinuous fiber reinforced thermoplastics particle is injected in two pieces of continuous lods Between thermoplastic composite covering, discontinuous fiber reinforced thermoplastics laminboard layer, continuous lod after injection molding are formed The resin matrix of thermoplastic composite skinning layer is fused with the resin matrix of discontinuous fiber reinforced thermoplastics laminboard layer Together, the sandwich structure composite material is formed.
In wherein some embodiments, the step：Thermoplastic, hollow glass micropearl, compatilizer, coupling are provided In agent, antioxidant, lubricant and discontinuous fiber, 35-75 parts of the thermoplastic, 5-40 parts of hollow glass micropearl, phase Hold 3-5 parts of agent, 0.5-1.5 parts of coupling agent, 0.01-1 parts of antioxidant, 0.3-1 parts of lubricant, 0.01-50 parts of discontinuous fiber.
In wherein some embodiments, the thermoplastic be PP, PE, PC, PA, TPU, PA6, PA66, PA12, PPS, One in PI, PEI, PEEK, PC/ABS, PET, POM, PBT, SAN, PLA, ABS, PS, PMMA, PVC, PPO, PPSU, PES, PSU Kind；The discontinuous fiber includes glass fibre, carbon fiber, aramid fiber, basalt fibre, alumina fibre, silicon nitride fibre One kind in dimension, boron nitride fiber, boron fibre, flax fiber, pbo fiber, PBI fibers, PBT fibers；The discontinuous fiber The length of discontinuous fiber described in reinforced thermoplastics particle is 0.1mm-50mm.
In wherein some embodiments, the reinforced phase of the continuous fiber reinforced thermoplastic composite material sheet material is continuous glass Glass fiber, carbon fiber, aramid fiber, basalt fibre, alumina fibre, silicon nitride fiber, boron nitride fiber, boron fibre, Asia One or more of flaxen fiber, pbo fiber, PBI fibers, PBT one-way fiber fabrics, woven cloth；The continuous lod The resin matrix of thermoplastic composite is PP, PE, PC, PA, TPU, PA6, PA66, PA12, PPS, PI, PEI, PEEK, PC/ One kind in ABS, PET, POM, PBT, SAN, PLA, ABS, PS, PMMA, PVC, PPO, PPSU, PES, PSU；The continuous fiber The thickness for enhancing thermoplastic composite sheet material is 0.1mm-0.5mm, and the volume content of the continuous fiber is 25%-75%.
In wherein some embodiments, the compatilizer is unformed styrene-butadiene copolymer, graft type Malaysia Three sections of acid anhydrides graft phenylethene/ethylene/styrene block copolymer, block type butylbenzene copolymer, styrene block concurrent mixture bullets The combination of one or more of property body；The coupling agent is silane coupling agent, titanate coupling agent, Aluminate coupling The combination of one or more of agent, organochromium complexes coupling agent and other types coupling agent；The lubricant is tristearin The combination of one or more of sour calcium, magnesium stearate, barium stearate, silicone, paraffin or zinc stearate；The antioxidant is Composite antioxidant made of Hinered phenols antioxidant and phosphite ester kind antioxidant compounding, wherein Hinered phenols antioxidant include Four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters, β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid Positive octadecanol fat and 1,3,5- tri- (3,5- di-tert-butyl-4-hydroxyl benzyl) isocyanuric acids, the phosphorous acid esters antioxygen Agent includes three (2,4- di-tert-butyl-phenyls) phosphite esters, bis- (octadecyl) pentaerythritol diphosphites, bis- (bis- uncles of 2,4- Butylphenol) pentaerythritol diphosphites.
In wherein some embodiments, the temperature of the infrared heater is set as 200 DEG C -450 DEG C, described in control Infrared heater is at a distance from continuous fiber reinforced thermoplastic composite material sheet material and the time of infrared radiation makes continuous fiber Enhancing thermoplastic composite sheet material is rapidly reached hot-forming temperature, the continuous fiber reinforced thermoplastic composite material sheet material Forming temperature is 100 DEG C -380 DEG C.
In wherein some embodiments, the molding die is the molding die of hot-pressing forming die and blanking die one, institute There is the upper and lower mould for stating molding die hot flow path, the hot flow path to be connected with die heater, the upper and lower mould temperature of the molding die It is 30 DEG C -110 DEG C, briquetting pressure 0.2MPa-5Mpa, molding time 1-30s.
In wherein some embodiments, the injection mold is connected with the die heater of rapid heating and cooling, to carry out cold and hot constant temperature Or switching, described, the temperature of injection mold is 25 DEG C -180 DEG C, injection pressure 80MPa-250MPa, the Injection filling time For 0.5s-5s, dwell time 5s-120s, injection temperature is 150 DEG C -400 DEG C.
The preparation method of sandwich structure composite material of the present invention adds hollow glass in the plastic granule of injection molding Microballon reduces density as intermediate core material, using the characteristics of injection molding high temperature and pressure by continuous fiber reinforced thermoplastic composite material Whole sandwich is made in the fusion of the resin matrix of resin matrix and injection-moulded plastic, and injection molding technology and sandwich are set Combine in respect of effect, performance continuous fiber reinforced thermoplastic composite material skinning layer high strength and modulus can bear larger The effect of bending load, while, low cost efficient using injection molding process, flexible design, discontinuous fiber enhance thermoplasticity The advantages such as plastic granule performance, density, shrinking percentage be controllable, the sandwich structure composite material product of preparation have high intensity, just The characteristics of spending, while density is reduced, mitigate construction weight, to realize that lightweight, slimming provide the technological approaches of innovation.It can For manufacturing machine part, appliance material, auto parts machinery, building material product and appliance shell etc.；And use this method and material The interlayer composite material of 3D structures can also be prepared in addition to slab construction can be prepared, compression strength is compared to traditional three kinds of core materials Sandwich structure composite material it is stronger, the scope of application is wider.
Specific implementation mode
It to facilitate the understanding of the present invention, below will be to invention is more fully described.But the present invention can be to be permitted Mostly different form is realized, however it is not limited to embodiment described herein.Make on the contrary, purpose of providing these embodiments is It is more thorough and comprehensive to the understanding of the disclosure.
Unless otherwise defined, all of technologies and scientific terms used here by the article and belong to the technical field of the present invention The normally understood meaning of technical staff is identical.Used term is intended merely to description tool in the description of the invention herein The purpose of the embodiment of body, it is not intended that in the limitation present invention.
The preparation method of sandwich structure composite material of the present invention comprising following steps：
Thermoplastic, hollow glass micropearl, compatilizer, coupling agent, antioxidant, lubricant and discontinuous fiber are provided, And continuous fiber reinforced thermoplastic composite material sheet material, forming jig, molding die and injection mold；
By the thermoplastic, hollow glass micropearl, compatilizer, coupling agent, antioxidant, lubricant and discontinuous fibre Dimension is mixed, and then pelletizing obtains discontinuous fiber reinforced thermoplastics particle；
The continuous fiber reinforced thermoplastic composite material sheet material is put into using vacuum cup in forming jig, machine is passed through Between the forming jig is placed in two infrared heaters by tool hand, the infrared heater is by the continuous lod thermoplastic Property composite material sheet quickly heat up to hot-forming temperature, then move the forming jig and composite sheet to the shaping mould In tool, the forming jig is taken out, closes the molding die, after preset time, the continuous fiber reinforced thermoplastic is compound Material sheet is shaped to preset shape, obtains continuous fiber reinforced thermoplastic composite material covering；
Two pieces of continuous fiber reinforced thermoplastic composite material coverings are preheated, the note is then respectively embedded in At two die faces of mould, then the discontinuous fiber reinforced thermoplastics particle is injected in two pieces of continuous lods Between thermoplastic composite covering, discontinuous fiber reinforced thermoplastics laminboard layer, continuous lod after injection molding are formed The resin matrix of thermoplastic composite skinning layer is fused with the resin matrix of discontinuous fiber reinforced thermoplastics laminboard layer Together, the sandwich structure composite material is formed.
In wherein some embodiments, the step：Thermoplastic, hollow glass micropearl, compatilizer, coupling are provided In agent, antioxidant, lubricant and discontinuous fiber, 35-75 parts of the thermoplastic, 5-40 parts of hollow glass micropearl, phase Hold 3-5 parts of agent, 0.5-1.5 parts of coupling agent, 0.01-1 parts of antioxidant, 0.3-1 parts of lubricant, 0.01-50 parts of discontinuous fiber.
Wherein, the particle size range of the hollow glass micropearl is 10 μm~180 μm, and median is 45 μm -80 μm, very close Degree is 0.3g/cm3~0.6g/cm3, compression strength 20MPa-125Mpa.
Wherein, the thermoplastic be PP, PE, PC, PA, TPU, PA6, PA66, PA12, PPS, PI, PEI, PEEK, One kind in PC/ABS, PET, POM, PBT, SAN, PLA, ABS, PS, PMMA, PVC, PPO, PPSU, PES, PSU.
Wherein, the discontinuous fiber includes glass fibre, carbon fiber, aramid fiber, basalt fibre, aluminium oxide fibre One kind in dimension, silicon nitride fiber, boron nitride fiber, boron fibre, flax fiber, pbo fiber, PBI fibers, PBT fibers.
Wherein, the length of discontinuous fiber described in the discontinuous fiber reinforced thermoplastics particle is 0.1mm- 50mm。
Wherein, the reinforced phase of the continuous fiber reinforced thermoplastic composite material sheet material be continuous glass fibre, carbon fiber, Aramid fiber, basalt fibre, alumina fibre, silicon nitride fiber, boron nitride fiber, boron fibre, flax fiber, pbo fiber, One or more of PBI fibers, PBT one-way fiber fabrics, woven cloth；The continuous fiber reinforced thermoplastic composite material piece The resin matrix of material be PP, PE, PC, PA, TPU, PA6, PA66, PA12, PPS, PI, PEI, PEEK, PC/ABS, PET, POM, One kind in PBT, SAN, PLA, ABS, PS, PMMA, PVC, PPO, PPSU, PES, PSU.
Wherein, the thickness of the continuous fiber reinforced thermoplastic composite material sheet material is 0.1mm-0.5mm, the continuous fibre The volume content of dimension is 25%-75%.
Wherein, the compatilizer is unformed styrene-butadiene copolymer, graft type maleic anhydride grafting benzene second One kind in three sections of alkene/ethylene/styrene block copolymer, block type butylbenzene copolymer, styrene block concurrent mixture elastomers Or several combination；The coupling agent is silane coupling agent, titanate coupling agent, aluminate coupling agent, Organic Chromium complexing The combination of one or more of compound coupling agent and other types coupling agent；The lubricant be calcium stearate, magnesium stearate, The combination of one or more of barium stearate, silicone, paraffin or zinc stearate；The antioxidant is Hinered phenols antioxidant Composite antioxidant made of being compounded with phosphite ester kind antioxidant, wherein Hinered phenols antioxidant include four [β-(3,5- bis- uncles Butyl -4- hydroxy phenyls) propionic acid] pentaerythritol ester (antioxidant 1010), propionic acid is just by β-(3,5- di-tert-butyl-hydroxy phenyls) Octadecanol fat (antioxidant 1076) and 1,3,5- tri- (3,5- di-tert-butyl-4-hydroxyl benzyls) isocyanuric acid (antioxidant 3114), the phosphite ester kind antioxidant includes three (2,4- di-tert-butyl-phenyl) phosphite esters (irgasfos 168), bis- (ten Eight alkyl) pentaerythritol diphosphites (antioxidant 618), bis- (2,4- DI-tert-butylphenol compounds) pentaerythritol diphosphites (antioxidant 626).
Wherein, the temperature of the infrared heater is set as 200 DEG C -450 DEG C, by controlling the infrared heater and company The distance of continuous fiber reinforced thermolplastic composite material sheet material and the time of infrared radiation so that continuous fiber reinforced thermoplastic is compound Material sheet is rapidly reached hot-forming temperature, and the forming temperature of the continuous fiber reinforced thermoplastic composite material sheet material is 100 ℃-380℃。
Wherein, the molding die be hot-pressing forming die and blanking die one molding die, the molding die it is upper There is lower die hot flow path, the hot flow path to be connected with die heater, and the upper and lower mould temperature of the molding die is 30 DEG C -110 DEG C, at Type pressure is 0.2MPa-5Mpa, molding time 1-30s.
Wherein, the injection mold is connected with the die heater of rapid heating and cooling, described to carry out cold and hot constant temperature or switching, The temperature of injection mold is 25 DEG C -180 DEG C, injection pressure 80MPa-250MPa, and the Injection filling time is 0.5s-5s, pressurize Time is 5s-120s, and injection temperature is 150 DEG C -400 DEG C.
Using sandwich structure composite material made of the above method comprising：Two layers of continuous fiber reinforced thermoplastic is compound Material skinning layer and the discontinuous fiber being clipped between two layers of continuous fiber reinforced thermoplastic composite material skinning layer increase Strong thermoplastic plastic injecting laminboard layer.The resin matrix and discontinuous fiber of continuous fiber reinforced thermoplastic composite material skinning layer The resin matrix of reinforced thermoplastics injection molding laminboard layer fuses together.
The present invention has following significant advantageous effect：
1, as core material, it is key, either honeycomb, foam plastic that density, compression strength, shear strength, which also have heat resistance, Material and cork wood are all difficult to reach the degree freely allocated.Also the problem of deformation is susceptible in forming process, the present invention utilize material The characteristic of material and technique, it is hot to regulate and control discontinuous fiber enhancing by adjusting fiber content and hollow glass micropearl content in raw material Mechanical property, density, shrinking percentage of thermoplastic plastic pellet etc. meet the needs of different sandwich material designs.Pass through tune simultaneously Section mold temperature and the preheating temperature of continuous fiber reinforced thermoplastic composite material etc. solve different materials and are received in forming process The problem of compression deformation, cracking etc..Freely with design, flexible and changeable characteristic.
2, a heat pressing and molding mold, a die cutting die, the invention land productivity are needed when general molding sheet material With being set in constant temperature, hot-forming rear mold will not form because of heating after thermal expansion the precision for influencing punching, realize quantity-produced The effect for saving mold and related development expense is also functioned to simultaneously.
3, by adjusting injection temperature, pressure in injection moulding process, filling the film time and the dwell time keeps continuous lod hot The resin matrix of plastic composites skinning layer and the resin matrix of discontinuous fiber reinforced thermoplastics injection molding laminboard layer are molten It is combined, the risk that intermediate gelatine layer eliminates interfacial separation can be saved, while continuous fiber reinforced thermoplastic composite material covers Cortex re-melting can reach smooth surface effect, if using continuous fiber woven cloth, plain weave, twill may be implemented With the transparent aesthetic appearances of 3d such as satin weave.
Present invention performance continuous fiber reinforced thermoplastic composite material skinning layer high strength and modulus can bear larger The effect of bending load, while, low cost efficient using injection molding process, the advantage of flexible design are prepared a kind of novel , the sandwich structure composite material of product size stable structure, product reduces density while having high intensity and rigidity, mitigates Construction weight, to realize that lightweight, slimming provide the technological approaches of innovation.The sandwich of typical three kinds of core materials exists The low disadvantage of compression strength, it is difficult to meet in the lightweight structure field of high compressive strength demand.Freshly prepared interlayer knot out Structure component compression strength is apparently higher than other sandwich materials, and can increase substantially compression strength by selection, can With the frontier applied to high request.
4, the present invention uses continuous fiber reinforced thermoplastic composite material and discontinuous fiber reinforced thermoplastics, such as two Plastic substrate and reinforcing fiber type are all consistent in kind material, can be utilized with recycled in its entirety, this is other sandwich materials The not available advantage having.More green, environmentally friendly, low-carbon can be recycled.
The technical solution that will be further illustrated the present invention below by embodiment：
Embodiment one
The preparation method of sandwich structure composite material comprising following steps：
Thermoplastic, hollow glass micropearl, compatilizer, coupling agent, antioxidant, lubricant and discontinuous fiber are provided, And continuous fiber reinforced thermoplastic composite material sheet material, forming jig, molding die and injection mold, wherein weight ratio are such as Under：Thermoplastic is 60 parts of makrolon (PC), 15 parts of hollow glass micropearl, compatilizer be maleic anhydride graft phenylethene/ 3 parts of ethylene/styrene block copolymer, 0.5 part of silane coupling agent (KH550), antioxidant are antioxidant 1010 and irgasfos 168 By 1:1 totally 0.2 part of mixing；Lubricant is 20 parts of 0.5 part of silicone master batch (ST-LS100) and glass fibre.The length of glass fibre For 0.7mm.The particle size range of hollow glass micropearl is 10 μm~180 μm, and median D50 is 60 μm, real density 0.45g/ cm3, compression strength 50MPa.
By makrolon (PC), hollow glass micropearl, maleic anhydride graft phenylethene/ethylene/styrene block copolymer, Silane coupling agent, antioxidant, lubricant and glass fibre mixing, then pelletizing obtain high-performance discontinuous fiber enhancing thermoplastic Property plastic grain.
It is put into forming jig, passes through after continuous fiber reinforced thermoplastic composite material sheet material is sucked using vacuum cup Between forming jig is placed in two infrared heaters by manipulator, the temperature of infrared heater is set to 300 DEG C, continuous fiber Enhancing thermoplastic composite sheet material quickly heats up to -380 DEG C of hot-forming temperature i.e. 100 DEG C, after 3s, continuous lod Thermoplastic composite sheet material reaches 230 DEG C of hot-forming temperature, then moves continuous fiber reinforced thermoplastic composite material sheet material With forming jig to molding die, forming jig is taken out, closes molding die, molding die is hot-pressing forming die and blanking die The molding die of one, temperature are 40 DEG C, and when molding is punched extra overlap, after pressure 2MPa, 5s, continuous lod heat Plastic composites sheet forming is preset shape, obtains continuous fiber reinforced thermoplastic composite material covering.Wherein, pass through control Infrared heater processed is at a distance from continuous fiber reinforced thermoplastic composite material sheet material and the time of infrared radiation makes continuous fibre Dimension enhancing thermoplastic composite sheet material is rapidly reached hot-forming temperature.Molding die is hot-pressing forming die and blanking die one Molding die, the upper and lower mould of molding die have a hot flow path, and hot flow path is connected with die heater, and to reach temperature constant, consistent, is molded The upper and lower mould temperature of mold is 30 DEG C -110 DEG C.
The continuous fiber reinforced thermoplastic composite material sheet material that the present embodiment uses is commercially available, bond laminates companies 's210 models of dynalite, thickness 0.25mm, resin matrix is makrolon, reinforcing fiber is glass fibers It ties up, the volume content of fiber is 44%.
Continuous fiber reinforced thermoplastic composite material covering after two formation of lots is preheated, is respectively embedded in after preheating At two die faces of injection mold, then discontinuous fiber reinforced thermoplastics particle is injected in two pieces of continuous lod heat Between plastic composites covering, discontinuous fiber reinforced thermoplastics laminboard layer is formed, continuous lod heat after injection molding The resin matrix of plastic composites skinning layer and the resin matrix fusion of discontinuous fiber reinforced thermoplastics laminboard layer exist Together, the sandwich structure composite material is formed.Wherein, preheating is to set continuous fiber reinforced thermoplastic composite material covering It is preheated in 110 DEG C of baking ovens, the temperature of injection mold is 100 DEG C, injection pressure 180MPa, and the Injection filling time is 3s, is protected The pressure time is 50s, and injection temperature is 280 DEG C.
Its sandwich structure composite material prepared, including：Two layers of continuous fiber reinforced thermoplastic composite material skinning layer with And it is clipped in the discontinuous fiber reinforced thermoplastics between two layers of continuous fiber reinforced thermoplastic composite material skinning layer It is molded laminboard layer.Wherein, resin matrix Yu discontinuous fiber the enhancing heat of continuous fiber reinforced thermoplastic composite material skinning layer The resin matrix of thermoplastic plastic injection molding laminboard layer fuses together.
Embodiment two
The preparation method of sandwich structure composite material described in the present embodiment, unlike embodiment one：
High-performance discontinuous fiber reinforced thermoplastics is made of the component of following weight ratio：
Thermoplastic is PA35 parts, 5 parts of hollow glass micropearl, compatilizer are block type butylbenzene copolymer, styrene three Section block concurrent mixture elastomer is with 1:1 be composed 3 parts, 1 part of aluminate coupling agent, antioxidant be antioxidant 1076 and antioxidant 168 press 2:3 totally 0.7 part of mixing, lubricant are paraffin and zinc stearate 1:2 mix totally 0.3 part and 0.01 part of carbon fiber.Carbon fiber The length of fiber is 1mm.The particle size range of hollow glass micropearl is 10 μm~180 μm in the present embodiment, and median D50 is 45 μm, real density 0.3g/cm3, compression strength 20Mpa.
Thermoplastic, hollow glass micropearl, compatilizer, coupling agent, antioxidant, lubricant and discontinuous fiber are carried out Mixing, then pelletizing obtain discontinuous fiber reinforced thermoplastics particle.
Continuous fiber reinforced thermoplastic composite material sheet material is put into using vacuum cup in forming jig, manipulator is passed through It is placed between two infrared heaters and the continuous fiber reinforced thermoplastic composite material sheet material is quickly heated up into thermoforming temperature Degree, infrared heater temperature is set as 250 DEG C, after 3s, continuous fiber reinforced thermoplastic composite material sheet material reach heat at 200 DEG C of type temperature, mobile jig remove jig and carry out another production cycle, close into composite sheet to molding die Pattern has, and molding die is the molding die of hot-pressing forming die and blanking die one, and temperature is 40 DEG C, and it is extra that when molding is punched Overlap, after pressure 2MPa, preset time 5s, the continuous fiber reinforced thermoplastic composite material sheet forming is default shape Shape obtains continuous fiber reinforced thermoplastic composite material covering.
The continuous fiber reinforced thermoplastic composite material sheet material that the present embodiment uses is commercially available, bond laminates companies 's300 models of anti-ballistic, thickness 0.25mm, resin matrix PA, reinforcing fiber are aramid fiber fibre It ties up, the volume content of fiber is 75%.
Continuous fiber reinforced thermoplastic composite material covering after two formation of lots is preheated, is respectively embedded in after preheating At two die faces of injection mold, then discontinuous fiber reinforced thermoplastics particle is injected in two pieces of continuous lod heat Between plastic composites covering, discontinuous fiber reinforced thermoplastics laminboard layer is formed, continuous lod heat after injection molding The resin matrix of plastic composites skinning layer and the resin matrix fusion of discontinuous fiber reinforced thermoplastics laminboard layer exist Together, the sandwich structure composite material is formed.Wherein, preheating is that continuous fiber reinforced thermoplastic composite material is placed in 80 DEG C It is preheated in baking oven, the temperature of injection mold is 70 DEG C, and the pressure of injection mold is 170MPa, and the Injection filling time is 2s, pressurize Time is 10s, and injection temperature is 230 DEG C.
Its sandwich structure composite material prepared, including：Two layers of continuous fiber reinforced thermoplastic composite material skinning layer with And it is clipped in the discontinuous fiber reinforced thermoplastics between two layers of continuous fiber reinforced thermoplastic composite material skinning layer It is molded laminboard layer.Wherein, resin matrix Yu discontinuous fiber the enhancing heat of continuous fiber reinforced thermoplastic composite material skinning layer The resin matrix of thermoplastic plastic injection molding laminboard layer fuses together.
Embodiment three
The preparation method of sandwich structure composite material described in the present embodiment, unlike embodiment one：
High-performance discontinuous fiber reinforced thermoplastics is made of the component of following weight ratio：
Thermoplastic is PPS75 parts, 30 parts of hollow glass micropearl, compatilizer are 5 parts of block type butylbenzene copolymer, organic 1.5 parts of chromium complex coupling agent, antioxidant are that antioxidant 3114 and antioxidant 618 press 1:3 totally 1 part of mixing, lubricant are tristearin 50 parts of 1 part of sour calcium and boron fibre.The length of boron fibre is 50mm.The particle size range of hollow glass micropearl is 10 μm~180 μm, in Position grain size is 80 μm, real density 0.6g/cm3, compression strength 125MPa.Wherein continuous fiber reinforced thermoplastic composite material Thickness is 0.5mm, and the volume content of continuous fiber is 45%.
Thermoplastic, hollow glass micropearl, compatilizer, coupling agent, antioxidant, lubricant and discontinuous fiber are carried out Mixing, then pelletizing obtain discontinuous fiber reinforced thermoplastics particle.
Continuous fiber reinforced thermoplastic composite material sheet material is put into using vacuum cup in forming jig, manipulator is passed through It is placed between two infrared heaters and the continuous fiber reinforced thermoplastic composite material sheet material is quickly heated up into thermoforming temperature Degree, infrared heater temperature is set as 400 DEG C, after 15s, continuous fiber reinforced thermoplastic composite material sheet material reach heat at 310 DEG C of type temperature, mobile jig remove jig and carry out another production cycle, close into composite sheet to molding die Pattern has, and molding die is the molding die of hot-pressing forming die and blanking die one, and temperature is 80 DEG C, and it is extra that when molding is punched Overlap, after pressure 5MPa, 5s, the continuous fiber reinforced thermoplastic composite material sheet forming is preset shape, is connected Continuous fiber reinforced thermolplastic composite material covering.
The continuous fiber reinforced thermoplastic composite material sheet material that the present embodiment uses is commercially available, bond laminates companies 's107 models of dynalite, thickness 0.5mm, resin matrix PPS, reinforcing fiber are glass fibre, fiber Volume content be 45%.
Continuous fiber reinforced thermoplastic composite material covering after two formation of lots is preheated, is respectively embedded in after preheating At two die faces of injection mold, then discontinuous fiber reinforced thermoplastics particle is injected in two pieces of continuous lod heat Between plastic composites covering, discontinuous fiber reinforced thermoplastics laminboard layer is formed, continuous lod heat after injection molding The resin matrix of plastic composites skinning layer and the resin matrix fusion of discontinuous fiber reinforced thermoplastics laminboard layer exist Together, the sandwich structure composite material is formed.Wherein, preheating is that continuous fiber reinforced thermoplastic composite material is placed in 80 DEG C It is preheated in baking oven, the temperature of injection mold is 180 DEG C, injection pressure 250MPa, and the Injection filling time is 5s, and the dwell time is 120s, injection temperature are 380 DEG C.
Its sandwich structure composite material prepared, including：Two layers of continuous fiber reinforced thermoplastic composite material skinning layer with And it is clipped in the discontinuous fiber reinforced thermoplastics between two layers of continuous fiber reinforced thermoplastic composite material skinning layer It is molded laminboard layer.Wherein, resin matrix Yu discontinuous fiber the enhancing heat of continuous fiber reinforced thermoplastic composite material skinning layer The resin matrix of thermoplastic plastic injection molding laminboard layer fuses together.
Several embodiments of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously Cannot the limitation to the scope of the claims of the present invention therefore be interpreted as.It should be pointed out that for those of ordinary skill in the art For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention Protect range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.

Claims (9)

1. a kind of preparation method of sandwich structure composite material, which is characterized in that include the following steps：
Thermoplastic, hollow glass micropearl, compatilizer, coupling agent, antioxidant, lubricant and discontinuous fiber are provided, and Continuous fiber reinforced thermoplastic composite material sheet material, forming jig, molding die and injection mold；
By the thermoplastic, hollow glass micropearl, compatilizer, coupling agent, antioxidant, lubricant and discontinuous fiber into Row mixing, then pelletizing obtain discontinuous fiber reinforced thermoplastics particle；
The continuous fiber reinforced thermoplastic composite material sheet material is put into using vacuum cup in forming jig, manipulator is passed through Between the forming jig is placed in two infrared heaters, the infrared heater answers the continuous fiber reinforced thermoplastic Condensation material sheet material quickly heats up to hot-forming temperature, then moves the forming jig and composite material sheet to the shaping mould In tool, the forming jig is taken out, closes the molding die, after preset time, the continuous fiber reinforced thermoplastic is compound Material sheet is shaped to preset shape, obtains continuous fiber reinforced thermoplastic composite material covering；
Two pieces of continuous fiber reinforced thermoplastic composite material coverings are preheated, the injection mould is then respectively embedded in At two die faces of tool, then the discontinuous fiber reinforced thermoplastics particle is injected in two pieces of continuous lod thermoplastics Property composite material skin between, formed discontinuous fiber reinforced thermoplastics laminboard layer, continuous lod thermoplastic after injection molding Property composite material skin layer the resin matrix of resin matrix and discontinuous fiber reinforced thermoplastics laminboard layer fuse one It rises, forms the sandwich structure composite material.
2. the preparation method of sandwich structure composite material according to claim 1, which is characterized in that the step：It provides In thermoplastic, hollow glass micropearl, compatilizer, coupling agent, antioxidant, lubricant and discontinuous fiber, the thermoplastic 35-75 parts of plastics of property, 5-40 parts of hollow glass micropearl, 3-5 parts of compatilizer, 0.5-1.5 parts of coupling agent, 0.01-1 parts of antioxidant, 0.3-1 parts of lubricant, 0.01-50 parts of discontinuous fiber.
3. the preparation method of sandwich structure composite material according to claim 1 or 2, which is characterized in that the hollow glass The particle size range of glass microballon is 10 μm~180 μm, and median is 45 μm -80 μm, real density 0.3g/cm3~0.6g/cm3, Compression strength 20MPa-125MPa.
4. the preparation method of sandwich structure composite material according to claim 1, which is characterized in that the thermoplastic For PP, PE, PC, TPU, PA6, PA66, PA12, PPS, PI, PEI, PEEK, PC/ABS, PET, POM, PBT, SAN, PLA, ABS, One kind in PS, PMMA, PVC, PPO, PPSU, PES, PSU；The discontinuous fiber includes glass fibre, carbon fiber, aramid fiber fibre Dimension, basalt fibre, alumina fibre, silicon nitride fiber, boron nitride fiber, boron fibre, flax fiber, pbo fiber, PBI are fine One kind in dimension, PBT fibers；The length of discontinuous fiber described in the discontinuous fiber reinforced thermoplastics particle is 0.1mm-50mm。
5. the preparation method of sandwich structure composite material according to claim 1 or 4, which is characterized in that the continuous fibre The reinforced phase of dimension enhancing thermoplastic composite sheet material is continuous glass fibre, carbon fiber, aramid fiber, basalt fibre, oxygen Change aluminum fiber, silicon nitride fiber, boron nitride fiber, boron fibre, flax fiber, pbo fiber, PBI fibers, PBT one-way fiber fabrics, One or more of woven cloth；The resin matrix of the continuous fiber reinforced thermoplastic composite material sheet material be PP, PE, PC、TPU、PA6、PA66、PA12、PPS、PI、PEI、PEEK、PC/ABS、PET、POM、PBT、SAN、PLA、ABS、PS、PMMA、 One kind in PVC, PPO, PPSU, PES, PSU；The thickness of the continuous fiber reinforced thermoplastic composite material sheet material is 0.1mm- The volume content of 0.5mm, the continuous fiber are 25%-75%.
6. the preparation method of sandwich structure composite material according to claim 1, which is characterized in that the compatilizer is It is unformed styrene-butadiene copolymer, graft type maleic anhydride, graft phenylethene/ethylene/styrene block copolymer, embedding The combination of one or more of three sections of segment type butylbenzene copolymer, styrene elastomer block copolymers；The coupling agent is In silane coupling agent, titanate coupling agent, aluminate coupling agent, organochromium complexes coupling agent and other types coupling agent One or more of combinations；The lubricant is calcium stearate, magnesium stearate, barium stearate, silicone, paraffin or zinc stearate One or more of combination；The antioxidant is made of Hinered phenols antioxidant and phosphite ester kind antioxidant compounding Composite antioxidant, wherein Hinered phenols antioxidant include four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] Ji Wusi Alcohol ester, the positive octadecanol fat of β-(3,5- di-tert-butyl-hydroxy phenyls) propionic acid and the (3,5- di-t-butyl -4- hydroxyls of 1,3,5- tri- Base benzyl) isocyanuric acid, the phosphite ester kind antioxidant includes three (2,4- di-tert-butyl-phenyl) phosphite esters, bis- (ten Eight alkyl) pentaerythritol diphosphites, bis- (2,4- DI-tert-butylphenol compounds) pentaerythritol diphosphites.
7. the preparation method of sandwich structure composite material according to claim 1, which is characterized in that the infrared heater Temperature be set as 200 DEG C -450 DEG C, pass through and control the infrared heater and continuous fiber reinforced thermoplastic composite material piece The distance of material and the time of infrared radiation make continuous fiber reinforced thermoplastic composite material sheet material be rapidly reached hot-forming temperature, The forming temperature of the continuous fiber reinforced thermoplastic composite material sheet material is 100 DEG C -380 DEG C.
8. the preparation method of sandwich structure composite material according to claim 1, which is characterized in that the molding die is The molding die of hot-pressing forming die and blanking die one, the upper and lower mould of the molding die have a hot flow path, the hot flow path with Die heater is connected, and the upper and lower mould temperature of the molding die is 30 DEG C -110 DEG C, briquetting pressure 0.2MPa-5MPa, when molding Between be 1-30s.
9. the preparation method of sandwich structure composite material according to claim 1, which is characterized in that the injection mold with The die heater of rapid heating and cooling is connected, and to carry out cold and hot constant temperature or switching, the temperature of the injection mold is 25 DEG C -180 DEG C, note Blow pressure is 80MPa-250MPa, and the Injection filling time is 0.5s-5s, dwell time 5s-120s, injection temperature is 150 DEG C- 400℃。
CN201610849242.7A 2016-09-23 2016-09-23 Sandwich structure composite material and preparation method thereof Active CN106626662B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610849242.7A CN106626662B (en) 2016-09-23 2016-09-23 Sandwich structure composite material and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610849242.7A CN106626662B (en) 2016-09-23 2016-09-23 Sandwich structure composite material and preparation method thereof

Publications (2)

Publication Number Publication Date
CN106626662A CN106626662A (en) 2017-05-10
CN106626662B true CN106626662B (en) 2018-08-14

Family

ID=58854898

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610849242.7A Active CN106626662B (en) 2016-09-23 2016-09-23 Sandwich structure composite material and preparation method thereof

Country Status (1)

Country Link
CN (1) CN106626662B (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107901516A (en) * 2017-11-23 2018-04-13 宁波伯骏智能科技有限公司 A kind of fibre reinforced composites product
CN108502301A (en) * 2018-04-28 2018-09-07 嘉兴领科材料技术有限公司 A repeated use of light stream packing case and its manufacture craft
CN109109339A (en) * 2018-07-12 2019-01-01 凌云工业股份有限公司上海凌云汽车研发分公司 The preparation of thermoplastic resin based composite material and the method for enhancing anticollision component
CN109263181B (en) * 2018-08-16 2021-10-29 嘉兴领科材料技术有限公司 Lightweight fiber reinforced thermoplastic composite board and preparation method thereof
CN109532054A (en) * 2018-11-02 2019-03-29 杭州超探新材料科技有限公司 A kind of moulding process of composite material structural member
CN111452442A (en) * 2019-01-18 2020-07-28 汉达精密电子(昆山)有限公司 Thermoplastic lightweight composite sheet, manufacturing method and corresponding product
CN111452443A (en) * 2019-01-18 2020-07-28 汉达精密电子(昆山)有限公司 Lightweight notebook computer case and method of making the same
CN111459223A (en) * 2019-01-18 2020-07-28 汉达精密电子(昆山)有限公司 Light notebook computer shell and manufacturing method thereof
CN110048036B (en) * 2019-04-19 2024-05-17 桑顿新能源科技有限公司 Reinforcing rib sheet and preparation method thereof, battery cell and preparation method thereof, and soft package battery
KR102879514B1 (en) * 2019-05-17 2025-10-30 오츠카 가가쿠 가부시키가이샤 Composite laminate and method for producing the same
EP3970962A4 (en) * 2019-05-17 2023-06-28 Otsuka Chemical Co., Ltd. Composite laminate and method for producing same
EP3976710B1 (en) * 2019-05-24 2024-06-12 Dow Global Technologies LLC Crosslinked polymeric composition and coated conductor
CN111421937A (en) * 2020-03-05 2020-07-17 上海阿莱德实业股份有限公司 Composite material for 5G millimeter wave radome and preparation method thereof
CN111941737B (en) * 2020-09-18 2022-11-15 江苏常熟汽饰集团股份有限公司 Local reinforced injection molding method for injection molding product with glass fiber composite sheet embedded on surface
CN112917762B (en) * 2021-01-28 2022-07-15 山东三岭汽车内饰有限公司 Method for manufacturing lower die of hot-press forming die
EP4642645A1 (en) * 2022-12-29 2025-11-05 Avient Corporation Multilayer composites comprising a polymeric layer and a continuous fiber reinforced polymeric composite
CN117484907B (en) * 2023-10-31 2025-11-25 溧阳山湖新材料科技有限公司 A method for integral molding of battery box cover with a super hybrid face-core sandwich structure
CN117601518A (en) * 2023-11-24 2024-02-27 歌尔股份有限公司 Composite materials and electronic equipment

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5496602A (en) * 1994-11-22 1996-03-05 Dow-United Technologies Composite Products, Inc. Low resin content unidirectional fiber tape
TWI353303B (en) * 2004-09-07 2011-12-01 Toray Industries Sandwich structure and integrated molding using th
CN111452445A (en) * 2013-08-30 2020-07-28 东丽株式会社 Sandwich structure, integrated molded article using the same, and method for producing the same
CN105922601A (en) * 2016-05-18 2016-09-07 广东新秀新材料股份有限公司 Preparation method of fiber-reinforced thermoplastic composite component

Also Published As

Publication number Publication date
CN106626662A (en) 2017-05-10

Similar Documents

Publication Publication Date Title
CN106626662B (en) Sandwich structure composite material and preparation method thereof
CN103387709B (en) A kind of thermoplastic composite, preparation method and applications
US7837911B2 (en) Methods of forming a layered article
KR101417245B1 (en) Complex sheet manufacturing device with excellent saturation property and method of manufacturing high strength complex sheet
CN108995249A (en) Method using carbon fiber article of manufacture and the product using this method manufacture
KR20090099215A (en) Manufacturing process of high strength thermoplastic composite reinforced with continuous fiber
TW201533109A (en) One-shot production of composites
CN110757722A (en) Forming method of thermoplastic continuous fiber reinforced composite material part
JP2009051080A (en) Molding process of fabric decorative resin product
CN105922601A (en) Preparation method of fiber-reinforced thermoplastic composite component
CN107501609B (en) A kind of thermoplastic fibre composite material sheet and its preparation method and application product
CN108015923A (en) A kind of processing and forming technology of fiber reinforced thermolplastic composite material product
CN102476457B (en) A kind of thermoforming method of co-woven continuous fiber reinforced thermoplastic structural plate
KR101470803B1 (en) Thermoplastic carbon fiber reinforced composite and manufacturing method thereof
CN103507275A (en) Thermoplastic composite material molding method
CN106739387A (en) A kind of continuous method for preparing polypropylene self-reinforced composite material of use double-steel belt pressing machine pressurization
US10543648B2 (en) Processing arrangement and a method for producing a fiber-reinforced plastic component
CN105881929A (en) Continuous fiber fabric and LFT composite wallboard structure manufacturing method
CN1914023A (en) Method of forming layered articles
CN105269836B (en) A kind of preparation method of SMC auto-parts product
CN107336480A (en) Automotive upholstery based on prepreg carbon fibre composite and preparation method thereof
KR20170052617A (en) Method for producing multi-shell composite-material components having an intergrated reinforcement structure and multi-shell composite-material components obtained therefrom
TW201618962A (en) Sandwich components composed of poly(meth)acrylate-based foam bodies and reversibly crosslinkable composites
CN111019232B (en) A kind of thermoplastic composite material and its preparation method and application
KR102318250B1 (en) Method for preparing fiber reinforced plastic composite material and fiber reinforced plastic composite material using the same

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant