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WO2019013716A1 - Méthode de production d'un matériau composite constitué d'un intermédiaire renforcé par des fibres imprégné de formulation de résine - Google Patents

Méthode de production d'un matériau composite constitué d'un intermédiaire renforcé par des fibres imprégné de formulation de résine Download PDF

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Publication number
WO2019013716A1
WO2019013716A1 PCT/TR2017/050315 TR2017050315W WO2019013716A1 WO 2019013716 A1 WO2019013716 A1 WO 2019013716A1 TR 2017050315 W TR2017050315 W TR 2017050315W WO 2019013716 A1 WO2019013716 A1 WO 2019013716A1
Authority
WO
WIPO (PCT)
Prior art keywords
resin formulation
epoxy
resin
material made
preg
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.)
Ceased
Application number
PCT/TR2017/050315
Other languages
English (en)
Inventor
Elif ERDOĞAN
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.)
Kordsa Teknik Tekstil AS
Original Assignee
Kordsa Teknik Tekstil AS
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 Kordsa Teknik Tekstil AS filed Critical Kordsa Teknik Tekstil AS
Priority to PCT/TR2017/050315 priority Critical patent/WO2019013716A1/fr
Publication of WO2019013716A1 publication Critical patent/WO2019013716A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/003Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised by the matrix material, e.g. material composition or physical properties
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28Shaping operations therefor
    • B29C70/30Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28Shaping operations therefor
    • B29C70/40Shaping or impregnating by compression not applied
    • B29C70/50Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60NSEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/26Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children
    • B60N2/28Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/04Reinforcing macromolecular compounds with loose or coherent fibrous material
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/24Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
    • C08J5/241Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs using inorganic fibres
    • C08J5/243Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs using inorganic fibres using carbon fibres
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/24Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
    • C08J5/241Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs using inorganic fibres
    • C08J5/244Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs using inorganic fibres using glass fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/30Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3055Cars
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2363/00Characterised by the use of epoxy resins; Derivatives of epoxy resins

Definitions

  • the present invention relates to a composite material for use in infant/child seats used in cars, as well as to a production method thereof.
  • Two types of infant/car seats can be used in cars, namely mobile child seats and support seats.
  • Mobile seats can be used for children of age 0-4, weighing maximum 16 kg.
  • Support seats in turn, can be used for children of age 4-8, weighing maximum 28-30 kg.
  • These car seats prevent the children and infants from getting thrown out of the seat and becoming injured in case of accidents, aiming to avoid accidents resulting in death. Therefore, they should be robust and durable against impacts and fire. Accordingly, the materials used in these seats should be selected from materials which are not easily flammable and fractured. According to the prior art, all hard parts of child seats are made of hard polypropylene materials shaped under pressure and temperature and not fractured as easily as some other plastics.
  • the polypropylene plastic is transported to the manufacturer in the form of sized pellets, whereas smaller components like buckle latch plates, harness adjusters, locking clips, and the seatbelt's lock housing are usually made by specialty manufacturers. These seats cannot provide adequate robustness because of their materials. Therefore, there is a need for robust materials suitable for use in child/infant car seats and for production methods of such materials.
  • the weight of infant/child car seats is another factor which is as important as their robustness.
  • the heaviest components of an infant/child car seat are the plastic coverings, hard shell outer frame and the metallic parts of the seat. Due to the weight of the seat, it is generally recommended to take the infant from the car seat and to leave the seat in the car.
  • parents typically do not want to take their children from the seat especially when they are asleep.
  • a production method for a composite material suitable for use in infant/child car seats, the method comprising the steps of obtaining a resin formulation; obtaining a pre-preg as an intermediate by coating the obtained resin formulation on at least one surface of a material made of reinforcing fibers; cutting the obtained pre-preg according to the configuration of the infant/child car seat; spreading the cut parts over a mold; curing the pre-preg at curing temperature to give a composite material; cooling down the obtained composite material and demolding the same.
  • the composite material obtained with the developed method is used in infant/child car seats.
  • a material is obtained with this method, which is durable against impacts, is lightweight and ergonomic, not easily flammable in case of fire, can be properly cleaned and is suitable for use in infant/child car seats.
  • the object of the present invention is to produce products wherein composite materials made of a resin formulation-impregnated, fiber-reinforced intermediate (pre-preg) are used in place of polypropylene in the production of the main frame and the shell of infant/child car seats and wherein the risk of injury and death of the infants/children in infant/child car seats is reduced.
  • pre-preg resin formulation-impregnated, fiber-reinforced intermediate
  • Another object of the present invention is to develop a production method of composite materials made of resin formulation-impregnated, fiber-reinforced intermediate (pre-preg) wherein the infant/child car seats are made more lightweight and easier to carry so that acute muscle and joint injuries of those who carry the seats are avoided.
  • pre-preg resin formulation-impregnated, fiber-reinforced intermediate
  • a further object of the present invention is to develop a production method of composite materials made of resin formulation-impregnated, fiber-reinforced intermediate (pre-preg) for use in infant/child car seats wherein the seat is made ergonomic in terms of removing and carrying it, as well as a longer service life and higher chemical-resistance is achieved in the seat.
  • pre-preg resin formulation-impregnated, fiber-reinforced intermediate
  • a further object of the present invention is to develop a production method of composite materials made of resin formulation-impregnated, fiber-reinforced intermediate (pre-preg) for use in infant/child car seats wherein the seat can be cleaned using chemicals stronger than mild solutions of soap and water so as to achieve a higher degree of hygiene.
  • the production method of a composite material suitable for use in infant/child car seats according to the present invention comprises the steps of; - obtaining a resin formulation;
  • a material preferably of unidirectional fibers or fabric woven from reinforcing fibers
  • said resin formulation is a thermosetting resin system.
  • the resin formulation also comprises an accelerator.
  • the resin formulation is preferably at 70-80°C.
  • the thermosetting resin system is selected from a group comprising epoxy, epoxy novolac, cyanate ester, bismaleimide, phenolic, phenol novolac, vinyl ester, and polyester.
  • the thermosetting resin system is preferably an epoxy resin system and is preferably in the form of a matrix.
  • the epoxy resin system comprises at least one epoxy selected from monofunctional, difunctional, trifunctional, tetrafunctional epoxy resins and/or the mixtures thereof in a hot melt form, at least one accelerator agent, at least one toughening agent and/or at least one urea-based curing agent.
  • Said epoxy resin system has preferably an epoxy equivalent weight (EEW) of between 1 10-660, particularly 150-400 EEW.
  • said difunctional epoxy resins are selected from a group comprising bisphenol F diglycidyl ether, bisphenol A diglycidyl ether, phenol and cresol epoxy novolac, glycidyl ethers of phenol-aldehyde addition products, glycidyl ethers of aliphatic diols, diglycidyl ether, diethylene glycol diglycidyl ether, aromatic epoxy resins, aliphatic polyglycidyl ethers, epoxylated olefins, aromatic glycidyl amines, heterocyclic glycidyl imidines and amides, glycidyl ethers, fluorinated epoxy resins, glycidyl esters and/or any combination thereof.
  • said trifunctional epoxy resins are selected from a group comprising phenol and cresol epoxy novolac, glycidyl ethers of phenol-aldehyde compounds, aromatic epoxy resins, aliphatic triglycidyl ethers, dialifatic triglycidyl ethers, aliphatic polyglycidyl amines, heterocyclic glycidyl imidines and amides, glycidyl ethers, fluorinated epoxy resins and/or any combination thereof.
  • Said trifunctional epoxy resin is preferably triglycidyl para- aminophenol and/or triglycidyl meta-aminophenol.
  • said tetrafunctional epoxy resins are selected from a group comprising; N , N , N', N'-tetraglycidyl-m-xylenediamine, N , N , N', N'-tetraglycidylmethylenedianiline,
  • the toughening agent is core shell rubber (CSR) and/or nitrile butadiene (NBR) rubber.
  • CSR core shell rubber
  • NBR nitrile butadiene
  • the percentage by weight of the toughening agent used to the thermosetting resin used is between 0,5-10%, preferably 2-8%.
  • the duration of the curing process is adjusted according to the type and amount of the accelerator agent used.
  • the pre-preg is heated to the curing temperature for the epoxy resin system and thus the reinforcing fiber material is fully impregnated with the epoxy resin system.
  • the obtained resin formulation has 32-56%, preferably 38 to 45% of the areal weight of the material made of reinforcing fibers. This ratio makes it possible for the resin formulation to give an adequate level of cross-linking reactions and for the material made of reinforcing fibers to provide a desired amount of impregnation.
  • said reinforcing fibers are selected from a group comprising organic fibers such as carbon fibers, glass fibers, aramide, poly(p-phenylene benzobisoxazole), polyethylene and polyvinyl alcohol and/or any combination of such fibers.
  • Said reinforcing fibers are preferably glass fibers or carbon fibers.
  • the method for obtaining a pre-preg comprises the steps of; obtaining at least one resin film layer from the obtained resin formulation; obtaining resin formulation-coated silicon papers by coating the obtained resin film layer on at least one surface of a silicon-coated paper, which is loaded on an epoxy film production line, together with resin formulation ; loading at least one other obtained resin formulation-coated silicon paper on a first resin film unwinding unit placed on a pre-preg line, and at least a further one on a second resin film unwinding unit;
  • a material made of reinforcing fibers (this material is preferably a fabric woven from reinforcing fibers or a unidirectional (UD) fibers array) on a fabric unwinding system or a yarn unwinding unit to be coated afterwards in the following steps with a resin formulation;
  • the pre-preg obtaining process comprises the steps of;
  • this material is preferably a fabric woven from reinforcing fibers or a unidirectional fiber array
  • the glass transition temperature (Tg) of the resin matrix is between 1 10 and 160°C, preferably between 120 and 145°C and is particularly 120°C Tg.
  • the conditions utilized for the viscosity and impregnation of the resin formulation are selected so as to provide a desired level of impregnation. It is preferred that the system's complex viscosity ( ⁇ *) is between 1000-10000 poise (0.9 A G V ⁇ * (Pa / Pa s) ⁇ 1.1) at 50°C. The viscosity of the resin decreases and the impregnation level increases with increasing operation temperature.
  • the complex viscosity of the resin between the impregnation rollers is between 40 and 60 poise at 65°C.
  • the complex viscosity of the resin formulation is between 1 x 10 6 Pa and 2 x 10 6 Pa.s. It is more preferably between 5 ila 30 Pa.s at 80 °C.
  • the composite material obtained according to the method developed with the present invention is used in infant/child car seats.
  • the composite material obtained with the developed method is used in infant/child car seats.
  • a material is obtained with this method, which is durable against impacts, is lightweight and ergonomic, has a high glass transition temperature, can be properly cleaned and is suitable for use in infant/child car seats.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Composite Materials (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Mathematical Physics (AREA)
  • Child & Adolescent Psychology (AREA)
  • General Health & Medical Sciences (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Physics & Mathematics (AREA)
  • Reinforced Plastic Materials (AREA)

Abstract

Une méthode de production est développée pour un matériau composite approprié pour être utilisé dans des sièges auto pour bébé/enfant, la méthode comprenant les étapes consistant à obtenir une formulation de résine ; obtenir un pré-imprégné en tant qu'intermédiaire par revêtement de la formulation de résine obtenue sur au moins une surface d'un matériau constitué de fibres de renforcement ; couper le pré-imprégné obtenu conformément à la configuration du siège auto pour bébé/enfant ; étaler les parties coupées sur un moule ; durcir le pré-imprégné à la température de durcissement pour donner un matériau composite ; refroidir le matériau composite obtenu et démouler de celui-ci.
PCT/TR2017/050315 2017-07-12 2017-07-12 Méthode de production d'un matériau composite constitué d'un intermédiaire renforcé par des fibres imprégné de formulation de résine Ceased WO2019013716A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/TR2017/050315 WO2019013716A1 (fr) 2017-07-12 2017-07-12 Méthode de production d'un matériau composite constitué d'un intermédiaire renforcé par des fibres imprégné de formulation de résine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/TR2017/050315 WO2019013716A1 (fr) 2017-07-12 2017-07-12 Méthode de production d'un matériau composite constitué d'un intermédiaire renforcé par des fibres imprégné de formulation de résine

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WO2019013716A1 true WO2019013716A1 (fr) 2019-01-17

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB954816A (en) * 1961-11-22 1964-04-08 Jean Helen Ames Improvements in or relating to children's safety seats for use in vehicles and craft
DE3145770A1 (de) * 1981-11-19 1983-05-26 Lesch, Hans, 6630 Saarlouis Verfahren zum herstellen eines an die koerperform eines kraftfahrers angepassten autositz
US20100239755A1 (en) * 2006-10-02 2010-09-23 Hexcel Corporation Composite materials with blend of thermoplastic particles
EP2655512A2 (fr) * 2010-12-22 2013-10-30 Cytec Technology Corp. Système de résine époxyde contenant des particules de renfort insolubles et des particules de renfort partiellement solubles ou pouvant gonfler destiné à être utilisé dans des applications de préimprégnés et d'éléments de structure

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB954816A (en) * 1961-11-22 1964-04-08 Jean Helen Ames Improvements in or relating to children's safety seats for use in vehicles and craft
DE3145770A1 (de) * 1981-11-19 1983-05-26 Lesch, Hans, 6630 Saarlouis Verfahren zum herstellen eines an die koerperform eines kraftfahrers angepassten autositz
US20100239755A1 (en) * 2006-10-02 2010-09-23 Hexcel Corporation Composite materials with blend of thermoplastic particles
EP2655512A2 (fr) * 2010-12-22 2013-10-30 Cytec Technology Corp. Système de résine époxyde contenant des particules de renfort insolubles et des particules de renfort partiellement solubles ou pouvant gonfler destiné à être utilisé dans des applications de préimprégnés et d'éléments de structure

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