FR2609934A2 - Application d'un procede de preparation de materiaux composites a elements de renforcement orientes a la fabrication de produits vulcanises tels que pneumatiques et produits vulcanises, notamment pneumatiques ainsi obtenus - Google Patents
Application d'un procede de preparation de materiaux composites a elements de renforcement orientes a la fabrication de produits vulcanises tels que pneumatiques et produits vulcanises, notamment pneumatiques ainsi obtenus Download PDFInfo
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- FR2609934A2 FR2609934A2 FR8700797A FR8700797A FR2609934A2 FR 2609934 A2 FR2609934 A2 FR 2609934A2 FR 8700797 A FR8700797 A FR 8700797A FR 8700797 A FR8700797 A FR 8700797A FR 2609934 A2 FR2609934 A2 FR 2609934A2
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- FR
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- Prior art keywords
- fibers
- matrix
- application
- tyres
- manufacture
- 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.)
- Granted
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 7
- 239000002131 composite material Substances 0.000 title claims abstract description 6
- 239000011159 matrix material Substances 0.000 claims abstract description 13
- 229920000271 Kevlar® Polymers 0.000 claims abstract description 6
- 239000004761 kevlar Substances 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims abstract description 6
- 229920003225 polyurethane elastomer Polymers 0.000 claims abstract description 6
- 239000002243 precursor Substances 0.000 claims abstract description 6
- 230000005684 electric field Effects 0.000 claims abstract description 5
- 238000004073 vulcanization Methods 0.000 claims abstract description 5
- 239000000835 fiber Substances 0.000 claims description 23
- 238000002360 preparation method Methods 0.000 claims description 4
- 229920001971 elastomer Polymers 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 239000004952 Polyamide Substances 0.000 claims description 2
- 239000003365 glass fiber Substances 0.000 claims description 2
- 229920003052 natural elastomer Polymers 0.000 claims description 2
- 229920001194 natural rubber Polymers 0.000 claims description 2
- 229920002647 polyamide Polymers 0.000 claims description 2
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 2
- 235000013311 vegetables Nutrition 0.000 claims description 2
- 244000043261 Hevea brasiliensis Species 0.000 claims 1
- 238000005470 impregnation Methods 0.000 claims 1
- 229920001296 polysiloxane Polymers 0.000 claims 1
- 230000005686 electrostatic field Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
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- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
Classifications
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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
- B29C70/06—Fibrous reinforcements only
- B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
- B29C70/12—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of short length, e.g. in the form of a mat
- B29C70/14—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of short length, e.g. in the form of a mat oriented
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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
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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
- B29C70/06—Fibrous reinforcements only
- B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
- B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
- B29C70/20—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in a single direction, e.g. roofing or other parallel fibres
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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
- B29C70/30—Shaping 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
- B29C70/38—Automated lay-up, e.g. using robots, laying filaments according to predetermined patterns
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/38—Textile inserts, e.g. cord or canvas layers, for tyres; Treatment of inserts prior to building the tyre
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- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/0048—Fibrous materials
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- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/16—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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- C04B35/78—Ceramic products containing macroscopic reinforcing agents containing non-metallic materials
- C04B35/80—Fibres, filaments, whiskers, platelets, or the like
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- C—CHEMISTRY; METALLURGY
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- 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
- C08J5/06—Reinforcing macromolecular compounds with loose or coherent fibrous material using pretreated fibrous materials
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/24—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
- C08J5/248—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs using pre-treated fibres
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- H—ELECTRICITY
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- H01M4/26—Processes of manufacture
- H01M4/28—Precipitating active material on the carrier
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- 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
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- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/04—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
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- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
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- C04B2235/5216—Inorganic
- C04B2235/522—Oxidic
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/52—Constituents or additives characterised by their shapes
- C04B2235/5208—Fibers
- C04B2235/5216—Inorganic
- C04B2235/524—Non-oxidic, e.g. borides, carbides, silicides or nitrides
- C04B2235/5248—Carbon, e.g. graphite
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
- C04B2235/605—Making or treating the green body or pre-form in a magnetic field
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- C—CHEMISTRY; METALLURGY
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- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
- C04B2235/616—Liquid infiltration of green bodies or pre-forms
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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
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E60/30—Hydrogen technology
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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
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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
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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
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- Y10T428/292—In coating or impregnation
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
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- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Textile Engineering (AREA)
- Electrochemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Robotics (AREA)
- Reinforced Plastic Materials (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Disintegrating Or Milling (AREA)
- Glass Compositions (AREA)
- Nonwoven Fabrics (AREA)
- Tires In General (AREA)
- Inorganic Fibers (AREA)
- Artificial Filaments (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
APPLICATION DU PROCEDE DE PREPARATION DE MATERIAUX COMPOSITES FORMES D'UNE MATRICE ET D'ELEMENTS DE RENFORCEMENT EN FORME DE FIBRES, COMPRENANT LA SOUMISSION DES FIBRES A UN CHAMP ELECTRIQUE INDUIT PAR UN COURANT ELECTRIQUE DE VOLTAGE ELEVE, ALTERNATIF OU CONTINU, L'IMPREGNATION DE CES FIBRES AVEC UN MATERIAU PRECURSEUR DE LADITE MATRICE ET LE DURCISSEMENT DE CETTE MATRICE, A LA VULCANISATION, DE PREFERENCE POUR LA FABRICATION DE PNEUMATIQUES. CETTE APPLICATION A LA VULCANISATION PERMET DE PREFERENCE DE FABRIQUER DES PNEUMATIQUES. ON PEUT UTILISER DES FIBRES DE " KEVLAR " TISSEES AVEC UNE MATRICE EN ELASTOMERE DE POLYURETHANE, LES FIBRES ETANT AU PREALABLE SOUMISES A UN CHAMP ELECTRIQUE. ON OBTIENT DES PRODUITS VULCANISES, NOTAMMENT DES PNEUMATIQUES, PRESENTANT DE MEILLEURES PROPRIETES MECANIQUES.
Description
Application d'un procédé de préparation de matériaux composites à éléments de renforcement orientés a la fabrication de Droduits vulcanisés tels que oneumatioues et oroduits vulcanisés, notamment pneumatiques ainsi obtenus.
La présente invention concerne une application d'un procédé de préparation de matériaux composites à éléments de renforcement orientés a la fabrication de produits vulcanisés tels que pneumatiques et produits vulcanisés, notamment pneumatiques ainsi obtenus.
Il a été décrit dans le brevet principal n084 14800 un procédé de préparation de matériaux composites formés d'une matrice et d'éléments de renforcement en forme de fibres, caractérisé en ce que les fibres sont imprégnées d'un matériau précurseur dudit matériau matrice alors qu'elles sont soumises à un champ électrostatique induit par un courant électrique de voltage élevé qui peut être un courant électrique alternatif, un courantélectrique continu, les deux types de courants pouvant être successivement appliqués. Le matériau précurseur de matrice peut être formé par
un mélange de deux précurseurs que l'on polymérise successivement dans des conditions différentes après mise en forme du matériau intermédiaire obtenu après la polymérisation de l'un des précurseurs (Voir les revendications et le texte descriptif).
un mélange de deux précurseurs que l'on polymérise successivement dans des conditions différentes après mise en forme du matériau intermédiaire obtenu après la polymérisation de l'un des précurseurs (Voir les revendications et le texte descriptif).
On couvre également les produits obtenus par ce procédé.
On a maintenant découvert de manière inattendue que l'application de ce procédé procurait-des effets inattendus lors de la fabrication de produits vulcanisés et qu'il était donc d'un intérêt capital pour la fabrication de pneumatiques, et notamment des pneumatiques à carcasse radiale.
Ainsi, la présente invention concerne une application du procédé tel que décrit dans le brevet principal FR 84 14800 à la fabrication de produits vulcanisés, et notamment à la fabrication de pneumatiques, en particulier des pneumatiques à carcasse radiale.
On sait que dans la fabrication de pneumatiques on utilise des fibres, par exemple des fibres de polyamide, des fibres de verre, ou végétales qui sont enrobées dans une matrice en élastomère, par exemple des polyuréthanes en caoutchouc naturel et/ou synthétique, en rhodorsit, en silicone, ou en élastomère thermoplastiquet ou leurs mélanges.
lors de cette application du procédé décrit dans le brevet principal, on a constaté que l'application d'un champ électrostatique, haute tension de type alternatif, rendait les fibres rugueuses en surface, ce qui permettait d'améliorer de façon radicale, tout-à-fait inattendue le processus de vulcanisation, et la résistance à l'arrachement de l'élastomère vulcanisé à la surface des fibres, ce qui améliore de manière radicale les propriétés mécaniques des produits vulcanisés et en particulier des pneumatiques, notamment ceux à carcasse radiale.
La présente invention couvre également les produits vulcanisés obtenus par ce procédé, notamment les pneumatiques, en particulier ceux à carcasse radiale.
On donne ci-après un exemple illustratif, non limitatif de l'invention qui ne saurait donc en aucune façon limiter la portée de l'invention.
EXEMPLE
On dispose des fibres de Kevlar tissees entre les plaques d'un dispcsitif générateur de champ électrostatique pouvant être alimentées par un courant électrique haute tension continu ou alternatif.
On dispose des fibres de Kevlar tissees entre les plaques d'un dispcsitif générateur de champ électrostatique pouvant être alimentées par un courant électrique haute tension continu ou alternatif.
On applique tout d'abord aux plaques un courant électrique haute tension continu d'au moins 40.000 volts pendant quelques minutes de mnaière à aboutir à un écartement des fibres et à un gonflement de celles-ci, l'épaisseur de l'ensemble des fibres devenant alors entre deux et quatre fois l'épaisseur du lit de fibres initialement introduit entre les plaques formant électrodes, comme décrit dans le brevet principal.
De préférence, on applique ensuite un courant électrique alternatif à un voltage au moins égal à 20.000 volts pendant quelques minutes, de manière à obtenir une rugosité de surface des fibres par effet d'arrachement à la surface résultant de décharges localisées lors de la modification du champ électrostatique par inversion de polarité du champ électrique.
Ensuite, alors que les fibres de Kevlar sont encore sous l'influence du champ électrostatique on enrobe ces fibres de Kevlar avec un élastomère de polyuréthane pouvant contenir un ou plusieurs agents vulcanisants classiques, notamment du soufre
à raison d'une proportion relative de 40 % en poids de fibres
de evlar et de 60 Z en poids d'élastomère de polyuréthane.
à raison d'une proportion relative de 40 % en poids de fibres
de evlar et de 60 Z en poids d'élastomère de polyuréthane.
On procède ensuite au traitement classique de vulcanisation qui peut comprendre une mise en forme, de manière à obtenir un
pneumatique. Pour ce faire, on peut réaliser ce procédé de manière
à obtenir un pneumatique à carcasse radiale, de manière tout-à
fait classique sur ce point.
pneumatique. Pour ce faire, on peut réaliser ce procédé de manière
à obtenir un pneumatique à carcasse radiale, de manière tout-à
fait classique sur ce point.
On observe que le produit vulcanisé ainsi obtenu présente
des propriétés classiques radicalement améliorées par rapport
aux produits vulcanisés habituels n'ayant pas été soumis au
procédé décrit dans le brevet principal et comportant un traitement
par un champ électrique haute tension continu ou discontinu
des propriétés classiques radicalement améliorées par rapport
aux produits vulcanisés habituels n'ayant pas été soumis au
procédé décrit dans le brevet principal et comportant un traitement
par un champ électrique haute tension continu ou discontinu
Claims (7)
- canisés, de préférence pour la fabrication de pneumatiques.durcissement de cette matrice, à la fabrication de produits vulfibres avec un matériau précurseur de ladite matrice et lede voltage élevé, alternatif ou continu, l'imprégnation de cesfibres à un champ électrique induit par un courant électriqueprocédé du brevet FB 84 14800, comprenant la soumission desforme de fibres selon l'une quelconque des revendications decomposites formés d'une matrice et d'éléments de renforcement enI. Application du procédé de préparation de matériauxREVENDICATI0NS
- 2. Application selon la revendication l, caractérisée ence que les fibres utilisées comme éléments de renforcement sontchoisies parmi des fibres de polyamide, des fibres végétales,des fibres de verre.ainsi que leurs mélanges.synthétique, le"rhodorsi!: un silicone, un élastomère thermoplastique,d'élastomère de polyuréthane, du caoutchouc naturel, du caoutchoucen ce que la matrice est choisie parmi le groupe consistant
- 3. Application selon la revendication I ou 2, caractérisée
- 4. Application selon l'une des revendications I à 3,caractérisée en ce qu'on utilise des fibres de Kevlar tisséeset un élastomère de polyuréthane comme matrice, la proportionrelative étant de préférence de 40 % en poids de fibres deKevlar tissees avec 60 % en poids d'élastomère de polyuréthane.
- 5. Application selon l'une quelconque des revendicationsprécédentes, caractérisée en ce qu'on réalise une vulcanisation avec mise en forme pour obtenir un pneumatique, en particulier unpneumatique à carcasse radiale.
- 6. Produits vulcanisés, caractérisés en ce qu'ils sontobtenus par l'application telle que définie selon l'une desrevendications I à 5.
- 7. Produit vulcanisé selon la revendication 6, caractériséen ce qu'il s'agît de pneumatiques, en particulier de pneumatiquesà carcasse radiale.
Priority Applications (15)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR878700797A FR2609934B2 (fr) | 1984-09-26 | 1987-01-23 | Application d'un procede de preparation de materiaux composites a elements de renforcement orientes a la fabrication de produits vulcanises tels que pneumatiques et produits vulcanises, notamment pneumatiques ainsi obtenus |
| US07/027,793 US4857244A (en) | 1984-09-26 | 1987-03-19 | Process of making a composite product, especially a vehicle tire |
| AU11587/88A AU597789B2 (en) | 1987-01-23 | 1988-01-21 | Process for preparing a composite material |
| EP88200098A EP0276041B1 (fr) | 1987-01-23 | 1988-01-21 | Procédé de préparation de matériaux composites y compris des produits vulcanisés notamment des pneus, des produits céramiques et des électrodes et produits obtenus selon ce procédé |
| JP63501230A JPH02501996A (ja) | 1987-01-23 | 1988-01-21 | タイヤ、セラミックス、電極等の加硫製品を含む複合材の製造方法及びその方法によって製造された製品 |
| ES198888200098T ES2031225T3 (es) | 1987-01-23 | 1988-01-21 | Procedimiento para la fabricacion de un material compuesto vulcanizado que tiene propiedades mecanicas y de desgaste mejoradas. |
| EP88901042A EP0342197A1 (fr) | 1987-01-23 | 1988-01-21 | Procede de preparation d'un materiau composite |
| DE8888200098T DE3869432D1 (de) | 1987-01-23 | 1988-01-21 | Verfahren zur vorbereitung von verbundmaterial einschliesslich vulkanisierter artikel, insbesondere reifen, keramik und elektroden sowie nach diesem verfahren hergestellte produkte. |
| PCT/EP1988/000039 WO1988005375A2 (fr) | 1987-01-23 | 1988-01-21 | Procede de preparation d'un materiau composite |
| AT88200098T ATE74053T1 (de) | 1987-01-23 | 1988-01-21 | Verfahren zur vorbereitung von verbundmaterial einschliesslich vulkanisierter artikel, insbesondere reifen, keramik und elektroden sowie nach diesem verfahren hergestellte produkte. |
| BR888807320A BR8807320A (pt) | 1987-01-23 | 1988-01-21 | Processo para preparacao de um material composto |
| ZA88444A ZA88444B (en) | 1987-01-23 | 1988-01-22 | Process for preparing composite materials including vulcanized products notably tires ceramic and electrodes and products obtained with said process |
| PT86601A PT86601B (pt) | 1987-01-23 | 1988-01-22 | Processo para a preparacao de um material composito incluindo produtos vulcanizados designadamente pneus, materiais ceramicos e electrodos, e produtos obtidos atraves do referido processo |
| DK527288A DK527288D0 (da) | 1987-01-23 | 1988-09-22 | Fremgangsmaade til fremstilling af et kompositmateriale |
| GR920400568T GR3004197T3 (fr) | 1987-01-23 | 1992-03-31 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8414800A FR2570646B1 (fr) | 1984-09-26 | 1984-09-26 | Procede de preparation de materiaux composites a elements de renforcement orientes et produits obtenus |
| FR878700797A FR2609934B2 (fr) | 1984-09-26 | 1987-01-23 | Application d'un procede de preparation de materiaux composites a elements de renforcement orientes a la fabrication de produits vulcanises tels que pneumatiques et produits vulcanises, notamment pneumatiques ainsi obtenus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2609934A2 true FR2609934A2 (fr) | 1988-07-29 |
| FR2609934B2 FR2609934B2 (fr) | 1992-09-04 |
Family
ID=9308107
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8414800A Expired FR2570646B1 (fr) | 1984-09-26 | 1984-09-26 | Procede de preparation de materiaux composites a elements de renforcement orientes et produits obtenus |
| FR878700797A Expired - Lifetime FR2609934B2 (fr) | 1984-09-26 | 1987-01-23 | Application d'un procede de preparation de materiaux composites a elements de renforcement orientes a la fabrication de produits vulcanises tels que pneumatiques et produits vulcanises, notamment pneumatiques ainsi obtenus |
| FR878702106A Expired - Lifetime FR2611086B2 (fr) | 1984-09-26 | 1987-02-18 | Application ou utilisation d'un procede de preparation de materiaux composites a elements de renforcement orientes, a la fabrication d'electrodes, ainsi que les electrodes obtenues et des generateurs electrochimiques comportant de telles electrodes |
| FR878702105A Expired - Lifetime FR2610922B2 (fr) | 1984-09-26 | 1987-02-18 | Application ou utilisation d'un procede de preparation de materiaux composites a elements de renforcement orientes, a la fabrication de ceramiques composites, et les ceramiques composites ainsi obtenues |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8414800A Expired FR2570646B1 (fr) | 1984-09-26 | 1984-09-26 | Procede de preparation de materiaux composites a elements de renforcement orientes et produits obtenus |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR878702106A Expired - Lifetime FR2611086B2 (fr) | 1984-09-26 | 1987-02-18 | Application ou utilisation d'un procede de preparation de materiaux composites a elements de renforcement orientes, a la fabrication d'electrodes, ainsi que les electrodes obtenues et des generateurs electrochimiques comportant de telles electrodes |
| FR878702105A Expired - Lifetime FR2610922B2 (fr) | 1984-09-26 | 1987-02-18 | Application ou utilisation d'un procede de preparation de materiaux composites a elements de renforcement orientes, a la fabrication de ceramiques composites, et les ceramiques composites ainsi obtenues |
Country Status (13)
| Country | Link |
|---|---|
| EP (1) | EP0179688B1 (fr) |
| JP (1) | JPS6184210A (fr) |
| AT (1) | ATE39079T1 (fr) |
| AU (1) | AU578740B2 (fr) |
| BR (1) | BR8504704A (fr) |
| CA (1) | CA1279033C (fr) |
| DE (1) | DE3566632D1 (fr) |
| DK (1) | DK162334C (fr) |
| ES (1) | ES8800635A1 (fr) |
| FR (4) | FR2570646B1 (fr) |
| IE (1) | IE57205B1 (fr) |
| PT (1) | PT81185B (fr) |
| ZA (1) | ZA857143B (fr) |
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| EP0924242A3 (fr) * | 1997-12-17 | 2000-07-12 | Hummel, Klaus, Prof. Dipl.-Ing. Dr. | Procédé pour améliorer l'adhérence d'un caoutchouc vulcanisé à un alliage de cuivre ou à l'aluminium ou un alliage d'aluminium |
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| IT1178518B (it) * | 1984-09-28 | 1987-09-09 | Alusuisse Italia Spa | Procedimento per la produzione di corpi carboniosi |
| JPH02501996A (ja) * | 1987-01-23 | 1990-07-05 | プラドム・リミテッド | タイヤ、セラミックス、電極等の加硫製品を含む複合材の製造方法及びその方法によって製造された製品 |
| US5218012A (en) * | 1987-12-11 | 1993-06-08 | Pradom Limited | Process for coating fibers and applications thereof to the production of composite materials |
| FR2636683B2 (fr) * | 1988-02-26 | 1990-12-28 | Berger Michel | Systeme d'assemblage par accrochage comportant des elements d'accrochage formes par des nervures curvilignes pourvues de levres elastiquement deformables |
| FR2655036B1 (fr) * | 1989-11-27 | 1993-07-09 | Pradom Ltd | Materiaux composites complexes a matrice organique-metallique, leur procede de fabrication et leur utilisation pour la fabrication de produits de haute technologie destines notamment a l'aerospatial ou aux vehicules a grande vitesse, tels que tgv. |
| GB9124822D0 (en) * | 1991-11-22 | 1992-01-15 | Rolls Royce Plc | Method of manufacturing a composite material |
| GB9124816D0 (en) * | 1991-11-22 | 1992-01-15 | Rolls Royce Plc | Method of manufacturing a composite material |
| EP1526214A1 (fr) | 2003-10-21 | 2005-04-27 | Materials Technics Holding Société Anonyme | Procede et dispositif d'impregnation d'un reseau fibreux par de la poudre utilisant un champ electrostatique alternatif |
| EP1525969A1 (fr) * | 2003-10-21 | 2005-04-27 | Materials Technics Holding | Procédé et dispositif pour le mélange, la dispersion et/ou l'homogeneisation de matière poudreuse |
| JP5233600B2 (ja) * | 2008-11-06 | 2013-07-10 | 株式会社ニコン | 粒子含有樹脂の製造方法 |
| WO2012139972A1 (fr) | 2011-04-11 | 2012-10-18 | Solvay Sa | Fabrication et utilisation d'un matériau composite comprenant des fibres et au moins un polymère de chlorure de vinyle |
| EP3117473B1 (fr) * | 2014-03-10 | 2020-09-16 | Maxwell Technologies, Inc. | Procédés et appareils pour la formation de fibrilles polymères sous champ électrique |
| US10151026B2 (en) * | 2016-08-05 | 2018-12-11 | Honeywell International Inc. | Vibration assisted densification of a carbon fiber preform |
| WO2019026009A1 (fr) * | 2017-08-01 | 2019-02-07 | Sabic Global Technologies B.V. | Procédé et système de production d'une bande de fibre de carbone unidirectionnelle ainsi que procédé de traitement de surface de fibres de carbone |
| US11407172B2 (en) | 2020-03-18 | 2022-08-09 | Powder Motion Labs, LLC | Recoater using alternating current to planarize top surface of powder bed |
| US11273598B2 (en) | 2020-03-18 | 2022-03-15 | Powder Motion Labs, LLC | Powder bed recoater |
| US11612940B2 (en) | 2020-03-18 | 2023-03-28 | Powder Motion Labs, LLC | Powder bed recoater |
| CN112793188A (zh) * | 2021-04-13 | 2021-05-14 | 若宇检具股份有限公司 | 一种基于模具挤压成型的碳纤维模拟块及成型方法 |
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- 1985-09-23 AT AT85401836T patent/ATE39079T1/de active
- 1985-09-23 EP EP85401836A patent/EP0179688B1/fr not_active Expired
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP0924242A3 (fr) * | 1997-12-17 | 2000-07-12 | Hummel, Klaus, Prof. Dipl.-Ing. Dr. | Procédé pour améliorer l'adhérence d'un caoutchouc vulcanisé à un alliage de cuivre ou à l'aluminium ou un alliage d'aluminium |
Also Published As
| Publication number | Publication date |
|---|---|
| DK162334B (da) | 1991-10-14 |
| ATE39079T1 (de) | 1988-12-15 |
| DE3566632T (fr) | 1989-01-12 |
| DK162334C (da) | 1992-03-09 |
| EP0179688A1 (fr) | 1986-04-30 |
| DE3566632D1 (en) | 1989-01-12 |
| ZA857143B (en) | 1986-05-28 |
| FR2570646A1 (fr) | 1986-03-28 |
| DK434585D0 (da) | 1985-09-25 |
| DK434585A (da) | 1986-03-27 |
| FR2570646B1 (fr) | 1987-10-30 |
| AU4791985A (en) | 1986-04-10 |
| PT81185B (pt) | 1987-08-19 |
| AU578740B2 (en) | 1988-11-03 |
| FR2609934B2 (fr) | 1992-09-04 |
| BR8504704A (pt) | 1986-07-22 |
| EP0179688B1 (fr) | 1988-12-07 |
| FR2611086A2 (fr) | 1988-08-19 |
| FR2611086B2 (fr) | 1994-09-09 |
| FR2610922A2 (fr) | 1988-08-19 |
| IE57205B1 (en) | 1992-06-03 |
| ES8800635A1 (es) | 1987-12-01 |
| ES547269A0 (es) | 1987-12-01 |
| CA1279033C (fr) | 1991-01-15 |
| FR2610922B2 (fr) | 1993-08-20 |
| IE852335L (en) | 1986-03-26 |
| JPS6184210A (ja) | 1986-04-28 |
| PT81185A (fr) | 1985-10-01 |
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