WO2005061209A1 - Matériaux composites comprenant un matériau de renfort et une matrice thermoplastique, article composé precurseur de ces matériaux et produits obtenus a partir de ces matériaux. - Google Patents
Matériaux composites comprenant un matériau de renfort et une matrice thermoplastique, article composé precurseur de ces matériaux et produits obtenus a partir de ces matériaux. Download PDFInfo
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- WO2005061209A1 WO2005061209A1 PCT/FR2004/003310 FR2004003310W WO2005061209A1 WO 2005061209 A1 WO2005061209 A1 WO 2005061209A1 FR 2004003310 W FR2004003310 W FR 2004003310W WO 2005061209 A1 WO2005061209 A1 WO 2005061209A1
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- Prior art keywords
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- polyamide
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- fibers
- polyester
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Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
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- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B15/00—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
- B29B15/08—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00 of reinforcements or fillers
- B29B15/10—Coating or impregnating independently of the moulding or shaping step
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- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
- B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
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- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
- B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
- B29C70/465—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating by melting a solid material, e.g. sheets, powders of fibres
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/36—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from amino acids, polyamines and polycarboxylic acids
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/20—Carboxylic acid amides
-
- 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
- C08L77/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31725—Of polyamide
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31725—Of polyamide
- Y10T428/31736—Next to polyester
Definitions
- the field of the invention is that of composite materials and their manufacturing processes. More specifically, the invention relates to the use of certain polycondensates used for the impregnation of reinforcing materials, in particular in the form of threads and / or fibers, intended to play the role of thermoplastic matrix, in composite materials.
- yarn is meant a monofilament, a continuous multifilament yarn, a yarn of fibers, obtained from a single type of fiber or from several types of fibers in intimate mixture.
- the continuous thread can also be obtained by assembling several multifilament threads.
- fiber is meant a filament or a set of cut, cracked or converted filaments. In the field of high-performance materials, composites have taken a prominent place, due to their performance and the weight savings they allow.
- thermosetting resins the use of which is limited to small series applications, mainly in aeronautics, motor sports, and in the best cases, having times. about fifteen minutes of manufacturing time, such as when manufacturing skis. The cost of these materials, and / or the manufacturing times, make them incompatible with mass production.
- thermoplastic resins are generally known for their high viscosity, which constitutes a brake with regard to the impregnation of reinforcing materials, generally composed of bundles of very dense filaments. It results from the use of thermoplastic matrices available on the market, in particular polyamide matrices, a difficulty in impregnation imposing either long impregnation times, or significant processing pressures. In most of the cases, the composite materials obtained from these matrices can have microvides and non-impregnated areas. These microvids cause falls mechanical properties, premature aging of the material as well as delamination problems when the material is laminated.
- This document also describes a process for forming this composite sheet.
- the use of low molecular weight polyamides in the matrix has the major drawback of impairing the mechanical properties of the composite, in particular with regard to the breaking strength, the resistance to elongation and the behavior in tired.
- the mechanical properties of these composites are a function of the plasticity of the matrix, which transmits the stresses at the level of the reinforcement, and of the mechanical properties of this one. this.
- the document FR-A-2 603 891 relates to a process for manufacturing a composite material, consisting of a polyamide matrix reinforced by long reinforcing fibers. These fibers are impregnated with a polyamide prepolymer or oligomer which has at each end of the molecular chain a reactive function capable of reacting with another oligomer or prepolymer molecule under the effect of heating, causing lengthening the polymer chain, to obtain a high molecular weight polyamide.
- the oligomer or prepolymer of low molecular weight, has the characteristic of being fluid in the molten state.
- the polyamides used are preferably polyamides 6, 6.6, 6.10, 6.12, 11 and 12.
- the fibers impregnated are then pultruded through a shaping die, at high temperature, in order to form profiles. This process remains close to conventional polymerization processes, therefore has cycle times that are incompatible with a rapid production rate. If the cycle times are adapted so as to make them compatible with the large series, the molecular weight of the polyamide obtained and constituting the matrix is too low to give the latter a good level of mechanical properties.
- Document EP-B-0 133 825 describes a flexible composite material mainly consisting of a reinforcing material in the form of a wick of parallel continuous fibers, impregnated with thermoplastic powder, preferably polyamide powder, and a matrix thermoplastic in the form of a sheath around the wick of continuous fibers, this sheath may also be made of polyamide.
- This material is characterized by the fact that the polymer constituting the thermoplastic matrix has a melting point lower than or equal to that of the polymer constituting the thermoplastic powder, so that the sheathing of the powder-coated fibers is carried out by melting the thermoplastic matrix , but without melting the powder, so that the latter isolates the fibers of the sheath.
- a disadvantage of using a thermoplastic polymer in powder form is the need to use complex equipment which limits the amount of composite obtained. It is therefore clear that this process is not very compatible with mass production.
- Document WO 03/029350 describes the use of a star polyamide as a matrix, such a polyamide having good fluidity in the molten state, which allows good impregnation of the reinforcing materials.
- the objective of the present invention is therefore to remedy the drawbacks described above by proposing a precursor article of a composite material, comprising different types of yarns and / or fibers, and in particular at least one yarn and / or reinforcing fibers, and at least one wire and / or fibers generating a thermoplastic matrix having a high fluidity in the molten state, allowing very good impregnation of the son and / or reinforcing fibers, during the formation of the composite material.
- Such an article makes it possible to obtain a composite material by a simple and rapid thermocompression technique.
- Another objective of the invention is to propose a composite material, obtained from this article and having good mechanical properties.
- a final objective of the invention is to provide a composite material having an advantage in reducing manufacturing costs, by the use of a tool using low pressures and shortened cycle times.
- the invention relates to a precursor article of a composite material comprising a polymer matrix and at least one wire and / or reinforcing fibers, said article comprising at least one wire and / or reinforcing fibers and at least a yarn and / or fibers of polymeric matrix characterized in that: - said yarn and / or said reinforcing fibers are made of reinforcing material and optionally comprise a part made of thermoplastic polymer - said yarn and / or said fibers of polymeric matrix are in thermoplastic polymer, and in that, - said thermoplastic polymer of said yarn and / or of said reinforcing fibers and / or of said yarn and / or of said fibers of polymeric matrix comprises at least one polycondensate consisting of:
- - A is a covalent bond or an aliphatic hydrocarbon radical which may comprise heteroatoms and comprising from 1 to 20 carbon atoms.
- R2 is a branched or unbranched aliphatic or aromatic hydrocarbon radical comprising from 2 to 20 carbon atoms.
- R3 represents hydrogen, a hydroxyl radical or a hydrocarbon radical
- - R- is a hydrocarbon radical comprising at least 2 carbon atoms, linear or cyclic, aromatic or aliphatic and which can comprise heteroatoms.
- m and p each represent a number between 30 and 200 All the known polycondensation functions can be used in the context of the invention for Fi and F 2 .
- the radicals R 2 can be identical or different in nature between them.
- the polymer matrix is a polyamide A1 consisting of: • 30 to 100% molar (limits included) of macromolecular chains corresponding to the following formula (I): R 3 - (XR 2 - Y) n -XAR 1 -AX- (YR 2 -X) m -R 3 (I) • 0 to 70 mol% (limits included) of macromolecular chains corresponding to the following formula (II) R 4 - [YR 2 - X] P -R 3 (II) in which:
- - Y is the radical - N - when X represents the radical - c -, R 5 o
- - Y is the radical - c - when X represents the radical - N -, - A is a covalent bond or an aliphatic hydrocarbon radical which may comprise heteroatoms and comprising from 1 to 20 carbon atoms.
- - R2 is a branched or unbranched aliphatic or aromatic hydrocarbon radical comprising from 2 to 20 carbon atoms.
- - R3, R4 represents hydrogen, a hydroxyl radical or a hydrocarbon radical
- R5 represents hydrogen or a hydrocarbon radical comprising from 1 to 6 carbon atoms
- R-j is a hydrocarbon radical comprising at least 2 carbon atoms, linear or cyclic, aromatic or aliphatic and which can comprise heteroatoms.
- the polymer matrix of the invention consists of a polyester A2 consisting of: • 30 to 100% molar (terminals included) of macromolecular chains corresponding to the following formula (I): R 3 - (XR 2 -Y) n -XAR 1 -AX- (YR 2 -X) m -R 3 (I) • 0 to 70 mol% ( bounds included) of macromolecular chains corresponding to the following formula (II) R 4 - [YR 2 -X] P -R 3 (II) in which:
- - Y is the radical ° when X represents the radical - c - o - Y is the radical - c - when X represents the radical ° 0
- - A is a covalent bond or an aliphatic hydrocarbon radical which may comprise heteroatoms and comprising from 1 to 20 carbon atoms.
- - R2 is a branched or unbranched aliphatic or aromatic hydrocarbon radical comprising from 2 to 20 carbon atoms.
- - R3, R4 represents hydrogen, a hydroxyl radical or a hydrocarbon radical
- ⁇ ⁇ or ° 0 - R-] is a hydrocarbon radical comprising at least 2 carbon atoms, linear or cyclic, aromatic or aliphatic and which may comprise heteroatoms.
- the polymer matrix of the invention can also be a copolyesteramide.
- Advantageously m, n and p are between 30 and 250.
- R2 is a pentamethylene radical.
- the polyamide A1 or the polyester A2 of the invention advantageously comprises at least 45%, preferably at least 60%, even more preferably at least 80 mol% of macromolecular chains corresponding to formula (I).
- the polyamide A1 or the polyester A2 of the invention advantageously has a number molecular mass greater than or equal to 5000, and less than or equal to 25000 g / mol.
- thermoplastic polymer yarn and / or fibers intended to play the role of matrix will be referred to hereinafter as "yarn and / or matrix fibers".
- molecular weight by number of polyamide A1 or polyester A2 is meant the molecular weight by number weighted by the molar fractions of the two types of macromolecular chains of formulas (I) and (II).
- the polyamide A1 or the polyester A2 is obtained by copolymerization from a mixture of monomers comprising: a) a difunctional compound whose reactive functions are chosen from amines, carboxylic acids , alcohols, and their derivatives, the reactive functions being identical, b) of the monomers of general formulas (IIIa) and (IIIb) below in the case of polyamide A1
- R'2 represents an aliphatic, cycloaliphatic or aromatic hydrocarbon radical, substituted or not, comprising from 2 to 20 carbon atoms, and which can comprise heteroatoms,
- carboxylic acid or carboxylic radical in the present invention is meant the carboxylic acids and their derivatives, such as acid anhydrides, acid chlorides, esters, nitriles etc.
- amine is meant amines and their derivatives.
- the monomers of formula (III a ) or (III b ) are preferably the polyamide monomers of the polyamide 6, polyamide 11, polyamide 12 etc. type.
- monomers of formula (III a ) or (III b ) which may be suitable in the context of the invention, caprolactam, 6-aminocaproic acid, lauryllactam etc. It can be a mixture of different monomers.
- monomers of formula (III a ') or (III b ') which may be suitable in the context of the invention, mention may be made of caprolactone, ⁇ -valerolactone, 4-hydroxybenzoic acid etc.
- the monomer mixture can also comprise a monofunctional monomer conventionally used in the production of polymers as chain limiter.
- the mixture of monomers can also include catalysts.
- the compound a) represents between 0.1 and 2 mol% relative to the number of moles of monomers of type b) or b ').
- the copolymerization of the monomers is carried out under conventional conditions for the polymerization of polyamides obtained from lactams or amino acids.
- polyester A2 the copolymerization of the monomers is carried out under conventional conditions for the polymerization of polyesters obtained from lactones or hydroxy acids.
- the polymerization can comprise a finishing step in order to obtain the desired degree of polymerization.
- the polyamide A1 or the polyester A2 is obtained by melt-blending, for example using an extrusion device, a polyamide of the type of those obtained by polymerization of lactams and / or amino acids or of a polyester of the type obtained by polymerization of lactones and / or hydroxy acids and of a difunctional compound whose reactive functions are chosen from amines, alcohols, acids carboxylic and their derivatives, the reactive functions being identical.
- the polyamide is, for example, polyamide 6, polyamide 11, polyamide 12, etc.
- the polyester is, for example, polycaprolactone, poly (pivalolactone), etc.
- the difunctional compound is added directly to the polyamide or the polyester in the melt. .
- the difunctional compound represents between 0.05 and 2% by weight relative to the weight of polyamide or polyester.
- the difunctional compound of the invention is preferably represented by the formula (IV): X "-A-R1-AX". (IV) in which X "represents an amino radical, a hydroxyl radical or a carboxylic group or their derivatives R1 and A are as described above.
- radical X there may be mentioned a primary amine radical , secondary amino etc.
- the difunctional compound can be a dicarboxylic acid.
- diacids By way of examples of diacids, mention may be made of adipic acid which is the preferred acid, decanoic or sebacic acid, dodecanoic acid, phthalic acids such as than terephthalic acid, isophthalic acid. It may be a mixture comprising by-products from the manufacture of adipic acid, for example a mixture of adipic acid, glutaric acid and succinic acid.
- the difunctional compound can be a diamine.
- diamines mention may be made of hexamethylene diamine, methyl pentamethylenediamine, 4,4'-diaminodicyclohexylmethane, butane diamine, metaxylylene diamine.
- the difunctional compound can be a dialcohol.
- dialcohols examples include 1,3-propanediol, 1,2-ethanediol, 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol and polytetrahydrofuran.
- the functional compound can be a mixture of a diamine and a dialcohol.
- the reactive functions of the difunctional compound are generally amines or carboxylic acids or derivatives.
- polyester A2 the reactive functions of the difunctional compound are generally alcohols or carboxylic acids or derivatives.
- the difunctional compound is chosen from adipic acid, decanoic or sebacic acid, dodecanoic acid, terephthalic acid, isophthalic acid, hexamethylene diamine, methyl pentamethylenediamine, 4,4'- diaminodicyclohexylmethane, butane diamine, metaxylylene diamine, 1, 3-propanediol, 1, 2-ethanediol, 1, 4-butanediol, 1, 5-pentanediol, 1, 6- hexanediol and polytetrahydrofuran
- the polyamide A1 or the polyester A2 is obtained by melt-blending, for example using an extrusion device, a polyamide of the type of those obtained by polymerization of lactams and / or amino acids or of a polyester of the type of those obtained by polymerization of lactones and / or hydroxy acids, with a compound of formula (V):
- the polyamide is for example polyamide 6, polyamide 11, polyamide 12.
- the polyester is for example polycaprolactone or poly (pivalolactone).
- the compound of formula (V) is added directly to the polyamide or polyester in a molten medium.
- the compound of formula (V) represents between 0.05 and 2% by weight relative to the weight of polyamide or polyester.
- All the polymer chain couplers or the polymer chain extension agents known to a person skilled in the art, generally comprising two identical functions or two identical radicals, and reacting selectively either with the reactive amino functions or with the reactive alcohol functions, either with the reactive carboxylic acid functions of the polyamide or of the polyester, to form covalent bonds, can be used as compound of formula (V).
- the compound (V) can for example selectively react with the amine functions of the polyamide into which it is introduced. This compound will not react with the acid functions of the polyamide in this case.
- the wire and / or the reinforcing fibers comprise a thermoplastic polymer
- the latter is preferably in the form of a polymer sheath which covers the wire and / or the reinforcing fibers.
- the precursor article of the composite material also comprises at least one thread- and / or matrix fibers of linear thermoplastic polymer.
- this linear polymer is an aliphatic and / or semi-crystalline polyamide or copolyamide chosen from the group comprising PA 4.6, PA 6, PA 6.6, PA 6.9, PA 6.10, PA 6.12, PA 6.36, PA 11, PA 12 or a semi-aromatic semi-aromatic polyamide or copolyamide chosen from the group comprising polyphthalamides, and mixtures of these polymers and their copolymers.
- the yarn and / or the matrix fibers may also include all the usual additives such as flame retardants, thinners, heat and light stabilizers, waxes, pigments, nucleators, antioxidants, impact resistance modifiers or the like and known to those skilled in the art.
- the reinforcement yarn and / or fibers are chosen from yarns and / or carbon, glass, aramid and polyimide fibers.
- the yarn and / or the reinforcing fibers are a natural yarn and / or fibers, chosen from yarns and / or fibers of sisal, hemp, flax.
- the article according to the invention also comprises a powder material, matrix precursor, which can for example be a polyamide.
- a powder with a particle size between 1 and 100 microns will be used.
- the article according to the invention is in the form of continuous or cut threads, ribbons, mats, braids, fabrics, knits, tablecloths, multiaxials, nonwovens and / or complex shapes comprising many of the above forms.
- a complex shape can be a sheet associated with a nonwoven or with continuous threads.
- Another object of the invention is a composite material obtained from an article as defined above, by at least partial melting of the thread- and / or the matrix fibers.
- This composite material comprises a polymer matrix and reinforcing threads and / or fibers.
- partial fusion is meant the fusion of at least part of at least one wire and / or one matrix fiber.
- the composite material thus obtained has a mass reinforcement rate of between 25 and 80%.
- Yet another object of the invention is a semi-finished product obtained by a thermocompression or calendering process of the aforementioned article, during which at least partially melts the wire- and / or the matrix fibers in order to impregnate the wire and / or the reinforcing fibers.
- this semi-finished product is in the form of plates or strips.
- the semi-finished product consists of an intermediate product, in which the reinforcing threads and / or fibers have been impregnated with the polymer matrix which is in the form of a continuous phase. This product is not yet in its final form.
- the semi-finished product must undergo a final shaping step, by a forming or thermocompression process known to those skilled in the art, at temperatures above their glass transition point and below its melting point, to obtain a finished product.
- Yet another object of the invention is a finished product obtained by a thermocompression process in the final form of the above-mentioned article, during which the thread- or / and the matrix fibers are at least partially melted in order to impregnate reinforcing wire and / or fibers.
- the thermocompression processes used use low pressures (below 20 bars), temperatures below 290 ° C, and short times (below 5 minutes).
- Matrix used polyamide A1 according to the invention, obtained by polycondensation of caprolactam in the presence of 0.6 mol% of adipic acid, under conventional conditions for the polymerization of polyamide from caprolactam
- Example 1- Semi-finished plate made from polyamide according to the invention and reinforcing threads
- polyamide A1 makes it possible to obtain a good impregnation of the reinforcement by the matrix without causing either the losses of mechanical properties, or the problems of resistance to fatigue observed with polymers of low molecular weight.
- the mechanical properties in bending are compared with those of a thermosetting composite obtained from the same reinforcing material and an epoxy resin in Table 1.
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- Organic Chemistry (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Composite Materials (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Reinforced Plastic Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
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Abstract
Description
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Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/583,168 US9200124B2 (en) | 2003-12-19 | 2004-12-20 | Composite materials comprising a reinforcing material and a thermoplastic matrix, precursor compound article of said materials and products obtained using same |
| EP20040816443 EP1701836B1 (fr) | 2003-12-19 | 2004-12-20 | Materiaux composites comprenant un materiau de renfort et une matrice thermoplastique, article compose precurseur de ces materiaux et produits obtenus a partir de ces materiaux. |
| JP2006544507A JP5337345B2 (ja) | 2003-12-19 | 2004-12-20 | 補強材及び熱可塑性マトリックスを含む複合材料、この材料の前駆体複合物品及びこの材料を用いて得られる製品 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0314994 | 2003-12-19 | ||
| FR0314994A FR2864094B1 (fr) | 2003-12-19 | 2003-12-19 | Materiaux composites comprenant un materiau de renfort et une matrice thermoplastique, article compose precurseur de ces materiaux et produits obtenus a partir de ces materiaux |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2005061209A1 true WO2005061209A1 (fr) | 2005-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2004/003310 Ceased WO2005061209A1 (fr) | 2003-12-19 | 2004-12-20 | Matériaux composites comprenant un matériau de renfort et une matrice thermoplastique, article composé precurseur de ces matériaux et produits obtenus a partir de ces matériaux. |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US9200124B2 (fr) |
| EP (1) | EP1701836B1 (fr) |
| JP (1) | JP5337345B2 (fr) |
| KR (1) | KR100796549B1 (fr) |
| FR (1) | FR2864094B1 (fr) |
| WO (1) | WO2005061209A1 (fr) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2586585A1 (fr) | 2011-10-25 | 2013-05-01 | Arkema France | Matériau composite thermoplastique renforcé de fibres synthétiques et procédé de fabrication |
| FR3019824A1 (fr) * | 2014-04-15 | 2015-10-16 | Arkema France | Procede pour materiau composite avec impregnation par polymere thermoplastique, issu d'un prepolymere et d'un allongeur de chaine |
| US10344126B2 (en) | 2014-04-15 | 2019-07-09 | Arkema France | Method for manufacturing a thermoplastic material made from semi-crystalline polyamide |
| US10377898B2 (en) | 2012-10-23 | 2019-08-13 | Arkema France | Thermoplastic composite material made of a semi-crystalline polyamide and method for manufacturing same |
| US11578170B2 (en) | 2014-04-15 | 2023-02-14 | Arkema France | Thermoplastic composition made from a polyamide polymer obtained from a prepolymer and a chain extender and manufacturing method |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0610272D0 (en) | 2006-05-24 | 2006-07-05 | Auxetic Technologies Ltd | A composite material |
| CA2690324A1 (fr) * | 2007-06-20 | 2008-12-24 | Rhodia Operations | Article polyamide composite |
| US20100291821A1 (en) * | 2009-05-12 | 2010-11-18 | E. I. Du Pont De Nemours And Company | Polyamide composite structures and processes for their preparation |
| US20110027571A1 (en) * | 2009-07-30 | 2011-02-03 | E.I. Du Pont De Nemours And Company | Heat resistant polyamide composite structures and processes for their preparation |
| WO2013008720A1 (fr) * | 2011-07-11 | 2013-01-17 | 東レ株式会社 | Pré-imprégné en résine thermoplastique, préforme moulée et composite moulé l'utilisant et procédé de production desdits préforme moulée et composite moulé |
| US9834885B2 (en) | 2012-12-04 | 2017-12-05 | Basf Se | Process for the production of a fiber-reinforced composite material |
| CN105283286B (zh) * | 2012-12-04 | 2018-02-02 | 巴斯夫欧洲公司 | 制备纤维增强复合材料的方法 |
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- 2003-12-19 FR FR0314994A patent/FR2864094B1/fr not_active Expired - Lifetime
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- 2004-12-20 WO PCT/FR2004/003310 patent/WO2005061209A1/fr not_active Ceased
- 2004-12-20 EP EP20040816443 patent/EP1701836B1/fr not_active Expired - Lifetime
- 2004-12-20 JP JP2006544507A patent/JP5337345B2/ja not_active Expired - Lifetime
- 2004-12-20 US US10/583,168 patent/US9200124B2/en active Active
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| FR2158422A1 (en) * | 1971-11-01 | 1973-06-15 | Allied Chem | Polyamide/glass fibre sheets - contg low mol wt polyamide and long fibres, for cold pressing of hot sheet |
| EP0216109A2 (fr) * | 1985-08-23 | 1987-04-01 | Sumitomo Chemical Company, Limited | Fibre de polyester |
| FR2603891A1 (fr) * | 1986-09-17 | 1988-03-18 | Atochem | Procede de fabrication de materiau composite a base de polyamide renforcee de fibres longues |
| WO1993025736A1 (fr) * | 1992-06-06 | 1993-12-23 | Basf Aktiengesellschaft | Fils obtenus par filage rapide, a base de polycaprolactame, et leur procede de fabrication |
| EP0743165A2 (fr) * | 1995-05-18 | 1996-11-20 | The Budd Company | Procédé et appareil pour le moulage de matériaux thermoplastiques renforcés |
| WO2002062563A1 (fr) * | 2001-02-08 | 2002-08-15 | Quadrant Plastic Composites Ag | Procede pour fabriquer un semi-produit thermoplastiquement malleable et renforce par des fibres |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2586585A1 (fr) | 2011-10-25 | 2013-05-01 | Arkema France | Matériau composite thermoplastique renforcé de fibres synthétiques et procédé de fabrication |
| WO2013060976A1 (fr) | 2011-10-25 | 2013-05-02 | Arkema France | Materiau composite thermoplastique renforce de fibres synthetiques et procede de fabrication |
| EP3002097A1 (fr) | 2011-10-25 | 2016-04-06 | Arkema France | Materiau composite thermoplastique renforce de fibres synthetiques et procede de fabrication |
| US10000662B2 (en) | 2011-10-25 | 2018-06-19 | Arkema France | Thermoplastic composite material reinforced with synthetic fibers and manufacturing process |
| US10377898B2 (en) | 2012-10-23 | 2019-08-13 | Arkema France | Thermoplastic composite material made of a semi-crystalline polyamide and method for manufacturing same |
| FR3019824A1 (fr) * | 2014-04-15 | 2015-10-16 | Arkema France | Procede pour materiau composite avec impregnation par polymere thermoplastique, issu d'un prepolymere et d'un allongeur de chaine |
| WO2015159021A1 (fr) | 2014-04-15 | 2015-10-22 | Arkema France | Procédé pour matériau composite avec impregnation par polymere thermoplastique, issu d'un prepolymere et d'un allongeur de chaîne |
| US10240016B2 (en) | 2014-04-15 | 2019-03-26 | Arkema France | Method for a composite material impregnated with thermoplastic polymer, obtained from a prepolymer and a chain extender |
| US10344126B2 (en) | 2014-04-15 | 2019-07-09 | Arkema France | Method for manufacturing a thermoplastic material made from semi-crystalline polyamide |
| US11578170B2 (en) | 2014-04-15 | 2023-02-14 | Arkema France | Thermoplastic composition made from a polyamide polymer obtained from a prepolymer and a chain extender and manufacturing method |
| US12428525B2 (en) | 2014-04-15 | 2025-09-30 | Arkema France | Thermoplastic composition made from a polyamide polymer obtained from a prepolymer and a chain extender and manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2864094A1 (fr) | 2005-06-24 |
| US20080020219A1 (en) | 2008-01-24 |
| US9200124B2 (en) | 2015-12-01 |
| KR20060117348A (ko) | 2006-11-16 |
| JP5337345B2 (ja) | 2013-11-06 |
| EP1701836A1 (fr) | 2006-09-20 |
| EP1701836B1 (fr) | 2014-05-07 |
| JP2007519770A (ja) | 2007-07-19 |
| KR100796549B1 (ko) | 2008-01-21 |
| FR2864094B1 (fr) | 2006-02-10 |
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