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WO2008072958A1 - Élément de forme comportant une couche de garniture polaire - Google Patents

Élément de forme comportant une couche de garniture polaire Download PDF

Info

Publication number
WO2008072958A1
WO2008072958A1 PCT/NL2007/000319 NL2007000319W WO2008072958A1 WO 2008072958 A1 WO2008072958 A1 WO 2008072958A1 NL 2007000319 W NL2007000319 W NL 2007000319W WO 2008072958 A1 WO2008072958 A1 WO 2008072958A1
Authority
WO
WIPO (PCT)
Prior art keywords
plastic material
plastic
cladding layer
form element
polar
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/NL2007/000319
Other languages
English (en)
Inventor
Rogier Theodorus Siardus Maria Mandos
Martijn Jacobus De Koning
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.)
Voestalpine Polynorm Plastics BV
Original Assignee
Voestalpine Polynorm Plastics BV
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 Voestalpine Polynorm Plastics BV filed Critical Voestalpine Polynorm Plastics BV
Publication of WO2008072958A1 publication Critical patent/WO2008072958A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • B29C45/14778—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 the article consisting of a material with particular properties, e.g. porous, brittle
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/18—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/481—Non-reactive adhesives, e.g. physically hardening adhesives
    • B29C65/482—Drying adhesives, e.g. solvent based adhesives
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/483—Reactive adhesives, e.g. chemically curing adhesives
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/483—Reactive adhesives, e.g. chemically curing adhesives
    • B29C65/484—Moisture curing adhesives
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4855—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by their physical properties, e.g. being electrically-conductive
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
    • B29C65/5057—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like positioned between the surfaces to be joined
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/026—Chemical pre-treatments
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5346—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/10—Polymers of propylene
    • B29K2023/12—PP, i.e. polypropylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/06—PVC, i.e. polyvinylchloride
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
    • B29K2067/003—PET, i.e. poylethylene terephthalate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
    • B29K2067/006—PBT, i.e. polybutylene terephthalate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2077/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2101/00—Use of unspecified macromolecular compounds as moulding material
    • B29K2101/12—Thermoplastic materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/0097—Glues or adhesives, e.g. hot melts or thermofusible adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
    • B29K2105/0854—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns in the form of a non-woven mat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2309/00—Use of inorganic materials not provided for in groups B29K2303/00 - B29K2307/00, as reinforcement
    • B29K2309/08—Glass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2311/00—Use of natural products or their composites, not provided for in groups B29K2201/00 - B29K2309/00, as reinforcement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages

Definitions

  • the present invention relates to a method for manufacturing a form element, to a form element obtainable using this method, to a form element, to the use of the form element in the manufacture of vehicles, and to a vehicle provided with such a form element.
  • Plastics which are much used in the automobile industry to form moulded parts are, among others, polypropylene and polyethylene. Many different products can be made from these plastics, such as for instance bottom plates, doors, seats and so on. Use is particularly also made in the automobile industry of composite materials. These are plastics which are reinforced with another component, for instance glass fibres (such as GMT or LFT) .
  • plastic components are nowadays glued to each other, or are glued to natural materials such as leather, glass, or glued to metal parts (such as parts from aluminium, iron, steel and so on) of a vehicle, such as for instance the bodywork of a car.
  • the plastic components In order to bring about a good adhesion the plastic components must have a relatively polar surface, i.e. a surface with a surface tension greater than 32 dynes/cm, preferably greater than 35 dynes/cm. If this is not the case, a good distribution of the adhesive - over the surface of the plastic part does not take place.
  • the adhesives such as for instance epoxy resins, polyurethane resins
  • the plastic surfaces are generally pretreated in order to make them relatively polar.
  • Such a pretreatment can then for instance consist of a so-called corona treatment and/or flaming of the surface of the plastic part and/or applying different primer layers (such as for instance diphenylmethane diisocyanate) to the surface of the plastic part.
  • Such treatments are relatively expensive because they introduce an additional processing step into the production process and because they are relatively labour-intensive. Use is also made of relatively expensive raw materials in such treatments.
  • the present invention has for its object to provide a solution to the above stated problems .
  • a first aspect of the present invention relates to a method for manufacturing a form element, comprising of:
  • thermoplastic plastic material forms a solid plastic element which is adhered to at least a part of the polar cladding layer.
  • the polar cladding layer is attached (by melting and/or mechanical connection) to the thermoplastic plastic material. After cooling a fixed connection forms between the cladding layer and the cooled thermoplastic plastic material, i.e. the formed plastic element.
  • the connection is herein such that the cladding layer can no longer be easily separated from the plastic element.
  • a form element is thus obtained which has a polar surface and which can be connected directly to for instance a metal part of for instance a part of the bodywork of a car. This because the adhesive used, such as for instance 3M Fastbond® (a polyurethane adhesive) , will flow well over both the relatively polar surfaces, and therefore ensure a good connection.
  • thermoplastic plastic material for forming the plastic element comprises a fibre- reinforced plastic material.
  • An advantage of the use of fibre-reinforced plastic material is that a form element is obtained with very good mechanical properties. It can hereby be used for instance as an element forming an essential component of the bodywork of a car, i.e. a so-called structural element.
  • the use of fibres further facilitates handling of the plastic material, particularly in the case where the form element is formed in a so-called compression mould.
  • the plastic element of the form element is a cladding element.
  • the plastic element which has been formed from the thermoplastic plastic material does not here have a structural function in the vehicle.
  • the plastic element can then be relatively thin or not be provided with a fibre structure.
  • the plastic element is formed into a plate.
  • the form element i.e. the plastic element with the polar cladding layer attached thereto, hereby also acquires a plate form.
  • the obtained form element can then be substantially flat, such as a base plate of a car, although it can also be a plate with a determined relief, such as a cover plate for an engine or an engine compartment covering.
  • the so-called surface tension is often measured in order to determine the polar properties of a surface. This surface tension is measured with a standard test, the DIN 53 354 test, this being a standard test for measuring the surface tension of a surface. It is the case here that the higher the surface tension of a surface, the more polar it is.
  • the cladding layer of polar plastic material used in the present method has a surface tension higher than 35 dynes/cm, preferably 40-50 dynes/cm, more preferably about 40-43 dynes/cm.
  • the surface tension of the obtained form element then comes to lie above 32, preferably above 35 dynes/cm, this being desirable for a good adhesion with the adhesive and the surface to which the form element is glued, such as for instance a metal surface.
  • the polar plastic material of the cladding layer comprises polyester, polyamide and/or polyvinyl chloride. These materials impart very good polar properties to the surface of the form element. They can further be readily connected to the thermoplastic plastic material of the plastic element.
  • the polyesters polyethylene terephthalate and polybutene terephthalate are particularly recommended as polar plastic material of the cladding layer.
  • the cladding layer is preferably a woven or a non-woven.
  • One of the advantages of the use of such materials is that they are easily handled and therefore easy to process.
  • the cladding layer is a film or a fleece.
  • step I) of the above described method two cladding layers are preferably arranged in the mould and in step ii) the thermoplastic plastic material is preferably arranged between the cladding layers.
  • a form element is thus obtained wherein the plastic element is covered over its whole outer surface with a polar cladding layer. This therefore means that the form element can be glued over its whole outer surface.
  • thermoplastic plastic material for forming the plastic element preferably has a surface tension lower than 30 dynes/cm. It is particularly recommended that the thermoplastic plastic material is a polyolefin, preferably polypropylene, polyethylene or polyamide. These plastic materials are very versatile, relatively inexpensive and can be made into all kinds of desired forms.
  • plastic materials are preferably fibre-reinforced.
  • the fibre percentage then preferably lies in the range of 5 to 80% by weight, preferably 10 to 40% by weight, more preferably about 25% by weight.
  • the fibres preferably further comprise glass fibres and/or basalt fibres and/or natural fibres.
  • the natural fibres can herein comprise hemp fibres, banana fibres, coconut fibres and/or flax fibres.
  • the mould comprises a so-called compression mould.
  • the cladding layer is for instance placed in the mould first, and a plastic element with increased temperature is then arranged thereon. The mould then closes and presses the plastic element against the cladding layer and the wall of the mould. Owing to the relatively high temperature of the plastic element the cladding layer fuses to the plastic element.
  • the desired form of the form element is further obtained due to the high (pressure) force and the form of the wall of the mould.
  • thermoplastic plastic material is then introduced into the mould under high pressure, preferably between 200 and 400 bar, and at a temperature in the range of 150 0 C to 300 0 C, preferably 190°C to 25O 0 C.
  • the plastic material then flows against the cladding layer, and this cladding layer is then pressed against the wall of the mould together with the plastic material, and they fuse together.
  • a form element is thus obtained with a determined desired form and with a surface having polar properties.
  • a second aspect of the present invention relates to a form element obtainable according to the above described method.
  • a third aspect of the present invention relates to a form element comprising a plastic element of thermoplastic plastic material, wherein at least a part of the surface of the plastic element is covered with a cladding layer of polar plastic material.
  • a fifth aspect of the present invention relates to the use of the above described form element in the manufacture of vehicles, such as cars, trucks, aircraft and ships.
  • a final aspect of the present invention relates to a vehicle provided with a form element as described above. Mentioned and other features of the form element and the method for manufacturing this element according to the invention will be further elucidated hereinbelow on the basis of a number of exemplary embodiments, which are given only by way of example without the invention being deemed limited thereto. Reference is made here to the accompanying drawings, in which:
  • Example 1 describes experimental results of five tests which were performed and which show that a form element according to the present invention has very good adhesive properties compared to untreated, fibre-reinforced polypropylene (GMT) .
  • Figure 1 shows a view of an embodiment of a method for manufacturing an embodiment of a form element according to the invention/
  • Figure 2 shows a view of the compression mould of Figure 1 for manufacturing an embodiment of a form element according to the invention, and an embodiment of a form element according to the invention;
  • Figure 3 shows a view of an embodiment of a form element according to the invention and a metal surface of a vehicle to which the form element is attached;
  • Figure 4 shows a view with exploded parts of an embodiment of a form element according to the present invention.
  • test rods of fibre-reinforced polypropylene (GMT) about 10 cm long, 1.6 cm wide and 0.5 cm thick were used in the present tests. Fifteen of these rods were provided with a polar cladding layer of polyethylene terephthalate. The treated surface of these rods had a surface tension of about 34 dynes/cm. The other five rods were untreated and had a surface tension of about 28 dynes/cm.
  • GMT fibre-reinforced polypropylene
  • Figure IA shows a first part 2 of a compression mould 1 for manufacturing a form element 3.
  • a cladding layer 4 of polyester (surface tension of about 42-46 dynes/cm) is arranged in this first part 2 as shown in Figure IB.
  • Part 2 of mould 1 has a specific form 5 with which a determined form of the surface of moulding 3 can be obtained.
  • a plastic element 6 of fibre-reinforced polypropylene (GMT) is arranged on cladding layer 4.
  • GMT fibre-reinforced polypropylene
  • FIG. 1 shows mould 1 in closed position, wherein the plastic element and the cladding layer are pressed into the desired form. During this pressing the thermoplastic plastic material of plastic element ⁇ flows over the cladding layer and they fuse together. The whole is then allowed to cool such that the thermoplastic plastic material and the cladding layer become solid and thus form a form element.
  • Figure 2 shows a cross-section of mould 1 of Figure 1, wherein a form element 3 is formed.
  • Form element 3 comprises plastic element 6 in solid state to which cladding layer 4 is adhered by means of fusing and/or mechanical connection.
  • cladding layer 4 for instance a honeycomb structure
  • a part of plastic element 6 can be situated on the surface of form element 3.
  • Figure 3 shows a view of a form element 8 of fibre- reinforced polypropylene provided on the underside with a cladding layer 9 of polar plastic material (polyester fleece) .
  • the downward extending container 10 forming part of form element 8 is not provided with cladding layer 9.
  • This container 10 can for instance serve to stow a spare tyre of a car.
  • Figure 3 further shows a part 11 of the metal chassis of a car.
  • This part 11 of the car is provided with a layer of adhesive 12 (for instance Betaseal 1759® or 3M Fastbond Contact Adhesive 30) .
  • Figure 4 shows a view with exploded parts of a form element 13.
  • Form element 13 comprises a cladding layer 14 of polyester (surface tension 42-46 dynes/cm) , which is attached to a plastic part 15 by means of a melting and/or mechanical connection.
  • the plastic part comprises fibre-reinforced polypropylene which has a surface tension of about 29 dynes/cm.
  • the surface of the form element with the cladding layer attached thereto has a surface tension of about 34 dynes/cm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Laminated Bodies (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

La présente invention concerne un procédé pour fabriquer un élément de forme, comportant les étapes consistant: i) à disposer une couche de garniture (5) d'une matière plastique polaire dans un moule (1) ; ii) à amener au moins une partie de la couche de garniture en contact, à une pression accrue, avec une matière plastique thermoplastique (7) de température accrue ; iii) à permettre à la matière plastique thermoplastique et à la couche de garniture polaire de refroidir, la matière plastique thermoplastique formant un élément en matière plastique solide qui est amené à adhérer à au moins une partie de la couche de garniture polaire. L'invention concerne en outre de tels éléments de forme et l'utilisation de ceux-ci dans des véhicules.
PCT/NL2007/000319 2006-12-14 2007-12-14 Élément de forme comportant une couche de garniture polaire Ceased WO2008072958A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1033052A NL1033052C2 (nl) 2006-12-14 2006-12-14 Vormelement voorzien van een polaire bekledingslaag.
NL1033052 2006-12-14

Publications (1)

Publication Number Publication Date
WO2008072958A1 true WO2008072958A1 (fr) 2008-06-19

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Application Number Title Priority Date Filing Date
PCT/NL2007/000319 Ceased WO2008072958A1 (fr) 2006-12-14 2007-12-14 Élément de forme comportant une couche de garniture polaire

Country Status (2)

Country Link
NL (1) NL1033052C2 (fr)
WO (1) WO2008072958A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106941139A (zh) * 2015-12-04 2017-07-11 罗伯特·博世有限公司 用于电池组系统的壳

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6356583A (ja) * 1986-08-27 1988-03-11 Mitsubishi Cable Ind Ltd ポリオレフインの接着方法
EP0295013A2 (fr) * 1987-06-05 1988-12-14 LOCTITE (IRELAND) Ltd. Composition primaire et son utilisation dans le collage de substrats non polaires
EP0295930A2 (fr) * 1987-06-19 1988-12-21 LOCTITE (IRELAND) Ltd. Compositions d'apprêt de diazabicyclo et de triazabicyclo et leur utilisation pour la liaison de substrats non polaires
EP0546565A1 (fr) * 1991-12-12 1993-06-16 CENTRO SVILUPPO SETTORI IMPIEGO S.r.l. Procédé et dispositif pour la fabrication d'articles à base de polymères avec noyaux en mousse
JPH08300398A (ja) * 1995-04-28 1996-11-19 Mitsui Petrochem Ind Ltd ポリプロピレン系射出成形品およびその製造方法
WO1997022471A1 (fr) * 1995-12-21 1997-06-26 The Dow Chemical Company Procede de fabrication d'un lamine
WO2003047857A1 (fr) * 2001-11-30 2003-06-12 General Electric Company Articles multicouche comprenant du polyester arylate de resorcinol et procede de fabrication associe
WO2003061941A1 (fr) * 2002-01-22 2003-07-31 Weidmann Plastics Technology Ag Procede de fabrication d'un corps moule collable et corps moule fabrique selon ce procede
WO2006085760A1 (fr) * 2005-02-10 2006-08-17 Polynorm Plastics B.V. Élément de couverture comprenant un élément d’absorption acoustique

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6356583A (ja) * 1986-08-27 1988-03-11 Mitsubishi Cable Ind Ltd ポリオレフインの接着方法
EP0295013A2 (fr) * 1987-06-05 1988-12-14 LOCTITE (IRELAND) Ltd. Composition primaire et son utilisation dans le collage de substrats non polaires
EP0295930A2 (fr) * 1987-06-19 1988-12-21 LOCTITE (IRELAND) Ltd. Compositions d'apprêt de diazabicyclo et de triazabicyclo et leur utilisation pour la liaison de substrats non polaires
EP0546565A1 (fr) * 1991-12-12 1993-06-16 CENTRO SVILUPPO SETTORI IMPIEGO S.r.l. Procédé et dispositif pour la fabrication d'articles à base de polymères avec noyaux en mousse
JPH08300398A (ja) * 1995-04-28 1996-11-19 Mitsui Petrochem Ind Ltd ポリプロピレン系射出成形品およびその製造方法
WO1997022471A1 (fr) * 1995-12-21 1997-06-26 The Dow Chemical Company Procede de fabrication d'un lamine
WO2003047857A1 (fr) * 2001-11-30 2003-06-12 General Electric Company Articles multicouche comprenant du polyester arylate de resorcinol et procede de fabrication associe
WO2003061941A1 (fr) * 2002-01-22 2003-07-31 Weidmann Plastics Technology Ag Procede de fabrication d'un corps moule collable et corps moule fabrique selon ce procede
WO2006085760A1 (fr) * 2005-02-10 2006-08-17 Polynorm Plastics B.V. Élément de couverture comprenant un élément d’absorption acoustique

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DATABASE WPI Week 198816, Derwent World Patents Index; AN 1988-108531, XP002441880 *
DATABASE WPI Week 199705, Derwent World Patents Index; AN 1997-047060, XP002441881 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106941139A (zh) * 2015-12-04 2017-07-11 罗伯特·博世有限公司 用于电池组系统的壳

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