EP0354139A1 - Hybrid yarn for composite materials made from thermoplastic matrix and method for producing the same - Google Patents

Hybrid yarn for composite materials made from thermoplastic matrix and method for producing the same Download PDF

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Publication number
EP0354139A1
EP0354139A1 EP89420275A EP89420275A EP0354139A1 EP 0354139 A1 EP0354139 A1 EP 0354139A1 EP 89420275 A EP89420275 A EP 89420275A EP 89420275 A EP89420275 A EP 89420275A EP 0354139 A1 EP0354139 A1 EP 0354139A1
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Prior art keywords
fibers
yarns
thermoplastic matrix
multifilaments
hybrid
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EP89420275A
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German (de)
French (fr)
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EP0354139B1 (en
Inventor
Jean Guevel
Marc François
Guy Bontemps
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Schappe SA
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Schappe SA
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    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/40—Yarns in which fibres are united by adhesives; Impregnated yarns or threads
    • D02G3/402—Yarns in which fibres are united by adhesives; Impregnated yarns or threads the adhesive being one component of the yarn, i.e. thermoplastic yarn
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G1/00—Severing continuous filaments or long fibres, e.g. stapling
    • D01G1/06—Converting tows to slivers or yarns, e.g. in direct spinning
    • D01G1/08—Converting tows to slivers or yarns, e.g. in direct spinning by stretching or abrading

Definitions

  • the present invention relates to hybrid yarns for composite materials with a thermoplastic matrix, especially in the case where this matrix is made up of thermoplastic fibers as well as their process for obtaining.
  • the reinforcing fibers carbon, aramid or glass
  • the reinforcing fibers which are generally found in the form of multifilaments, are woven alternately with multifilaments of thermoplastic matrix fibers .
  • thermoplastic matrix fibers belong to the conventional families: polyether ether ether ketone (PEEK), polyphenylene sulfide (PPS), polyetherimide (PEI), etc.
  • This manufacturing technique has many disadvantages, among which we can cite: - poor wettability, - a high vacuum rate, - delamination of the reinforcing fibers.
  • Another technique consists of intermingling the multifilament of reinforcing fibers with the multifilament of thermoplastic fiber.
  • the present invention has set itself the aim of proposing hybrid wires for thermoplastic matrix composites making it possible to control and solve these problems.
  • the hybrid yarns according to the invention are characterized in that they consist of an intimate mixture of yarns of reinforcing fibers and yarns of thermoplastic matrix fibers, each of the yarns of fibers having been obtained beforehand by cracking according to a slow drawing and progressive multifilaments.
  • the yarns of reinforcing fibers are chosen from yarns of carbon, aramid or glass fibers.
  • thermoplastic matrix fibers are chosen from yarns of polyether ether ketone fibers (PEEK), of phenylene polysulfide (PPS), polyethersulfone (PES), polyetherimide (PEI), as well as among the other fiber yarns known for this purpose, such as polyamides and polyimides.
  • PEEK polyether ether ketone fibers
  • PES phenylene polysulfide
  • PES polyethersulfone
  • PEI polyetherimide
  • the relative proportions of the reinforcing fibers and of the thermoplastic matrix fibers are situated around 65% for reinforcing fibers and 35% for thermoplastic matrix fibers.
  • the invention also relates to a process for obtaining hybrid wires for composite materials according to the invention.
  • multifilaments of reinforcing fibers and multifilaments of thermoplastic matrix fibers are subjected to a separate process of cracking by slow and progressive drawing, then the ribbons of staple fibers thus obtained are assembled on a drawing machine of intersecting type, the ribbon leaving this stretching machine then being assembled on a second stretching machine with other identical ribbons, this operation being repeated several times so as to produce the most intimate mixture possible, the final ribbon obtained then being subjected in conventional long fiber spinning operations: passage on a spindle bench, actual spinning, winding, assembly and twisting.
  • the yarns thus obtained are capable of being transformed by weaving, knitting or braiding to obtain composite materials having numerous advantages over materials of the same type obtained according to the processes of the prior art.
  • the composite obtained also exhibits very good aptitudes for hot stamping.
  • the reinforcing fibers are generally designated by 2 and the thermoplastic matrix fibers by 3 .
  • the multifilament cables supplied from the coils 10 are subjected to a cracking operation by stretching and controlled breaking, the speeds of the stretching zones 11,12 and of the cracking zones 13,14 gradually increasing so that: V10 ⁇ V12 ⁇ V13 ⁇ V14 which makes it possible to obtain at the outlet a ribbon of staple fibers whose average length is perfectly controlled.
  • This length is moreover illustrated by the diagram of FIG. 1 on which the lengths of fibers in mm are plotted on the ordinate and the abscissa is the population of fibers expressed as a percentage of the number of fibers in this population.
  • This ribbon then undergoes conventional spinning operations in the long fiber technique: - passage on pin benches, - spinning, - winding, - assembly, - twisting, which makes it possible to obtain the hybrid fiber yarn for composite materials with a thermoplastic matrix according to the invention, this fiber yarn being, of course, capable of being subsequently transformed by weaving, knitting or braiding.
  • thermoplastic matrix fiber melts by trapping the reinforcing fibers.
  • the performance of the composite thus obtained therefore depends only on the characteristics of the elementary fibers and their attachment to the thermoplastic matrix.
  • Table I summarizes the properties of three types of hybrid fiber yarns according to the invention in which both the reinforcing fibers and the thermoplastic matrix fibers have been varied.
  • Table II compares the properties of different composite materials produced from hybrid fiber yarns according to the invention, compared to composites produced according to the prior art and described in the literature.
  • Sample references Yarn rate by volume% Density g / cm2 Vacuum rate% FLEXION SHEARING TRACTION Breaking stress (GPa) Module (GPa) Breaking stress (MPa) Breaking stress (GPa) Module (GPa) 1 56 1.60 1.2 0.94 53.5 - - - 2 56.7 1.60 0.9 0.86 65.4 - - - 3 58.2 1.61 0.1 - - 57.3 - - 4 56 1.60 0.4 - - 59.3 - - 5 56.7 1.62 0.9 - - - 0.96 44.7 6 58.9 1.62 0.9 - - - 0.89 44.7 SAMPE, Jal Jan-Feb 88.

Abstract

These yarns consist of an intimate mixture of spun threads of reinforcing fibres (2) and spun threads of thermoplastic matrix fibres (3), each of the spun threads of fibres having previously been obtained by cracking by means of a slow and progressive drawing of multifilaments. The process for obtaining them is characterised in that multifilaments of reinforcing fibres (2) and multifilaments of thermoplastic matrix fibres (3) are subjected to a separate process of cracking by slow and progressive drawing, and in that the slivers (2, 3) of discontinuous fibres thus obtained are then assembled together on a drawing machine (15) of the intersecting type, the sliver (4) leaving this drawing machine subsequently being assembled together with other identical slivers on a second drawing machine, this operation being repeated several times to produce the most intimate mixture possible, the final sliver obtained thereafter being subjected to the conventional operations of spinning long fibres: passage over a fly frame, actual spinning, winding, assembly and twisting. <IMAGE>

Description

La présente invention concerne des fils hybrides pour matériaux composites à matrice thermoplastique, spécialement dans le cas où cette matrice est constituée de fibres thermoplastiques ainsi que leur procédé d'obtention.The present invention relates to hybrid yarns for composite materials with a thermoplastic matrix, especially in the case where this matrix is made up of thermoplastic fibers as well as their process for obtaining.

On sait que, dans les procédés actuels utilisés pour la fabrication de ces types de matériaux composites, les fibres de renfort (carbone, aramide ou verre), qui se trouvent généralement sous forme de multifilaments, sont tissées alternativement avec des multifilaments de fibres matrices thermo­plastiques.It is known that, in the current processes used for the manufacture of these types of composite materials, the reinforcing fibers (carbon, aramid or glass), which are generally found in the form of multifilaments, are woven alternately with multifilaments of thermoplastic matrix fibers .

Ces fibres matrices thermoplastiques appartiennent aux familles classiques : polyéther éther éther cétone (PEEK), polysulfure de phénylène (PPS), polyétherimide (PEI), etc...These thermoplastic matrix fibers belong to the conventional families: polyether ether ether ketone (PEEK), polyphenylene sulfide (PPS), polyetherimide (PEI), etc.

Cette technique de fabrication présente de multiples inconvénients parmi lesquels on peut citer :
- une mauvaise mouillabilité,
- un taux de vide important,
- un délaminage des fibres de renfort.This manufacturing technique has many disadvantages, among which we can cite:
- poor wettability,
- a high vacuum rate,
- delamination of the reinforcing fibers.

Une autre technique consiste à entremêler le multifilament de fibres de renfort avec le multifilament de fibre thermoplastique.Another technique consists of intermingling the multifilament of reinforcing fibers with the multifilament of thermoplastic fiber.

On constate alors une amélioration du résultat obtenu mais les problèmes exposés ci-dessus ne sont pas complètement résolus. D'autre part, le coût de cette technique, assez élevé, empêche pratiquement sa mise en oeuvre dans le cas de séries industrielles.There is then an improvement in the result obtained, but the problems set out above are not completely resolved. On the other hand, the fairly high cost of this technique practically prevents its use in the case of industrial series.

La présente invention s'est donné pour but de proposer des fils hybrides pour composites à matrice thermoplastique permettant de maîtriser et de résoudre ces problèmes.The present invention has set itself the aim of proposing hybrid wires for thermoplastic matrix composites making it possible to control and solve these problems.

Les fils hybrides selon l'invention sont caractérisés en ce qu'ils sont constitués d'un mélange intime de filés de fibres de renfort et de filés de fibres matrices thermoplastiques, chacun des filés de fibres ayant été préalablement obtenu par craquage selon un étirage lent et progressif de multifilaments.The hybrid yarns according to the invention are characterized in that they consist of an intimate mixture of yarns of reinforcing fibers and yarns of thermoplastic matrix fibers, each of the yarns of fibers having been obtained beforehand by cracking according to a slow drawing and progressive multifilaments.

Les filés de fibres de renfort sont choisis parmi les filés de fibres de carbone, d'aramide ou de verre.The yarns of reinforcing fibers are chosen from yarns of carbon, aramid or glass fibers.

Les filés de fibres matrices thermoplastiques sont choisis parmi les filés de fibres de polyéther éther cétone (PEEK), de polysulfure de phénylène (PPS), de polyéthersulfone (PES), de polyétherimide (PEI), ainsi que parmi les autres filés de fibres connus dans ce but, tels que les polyamides et les polyimides.The yarns of thermoplastic matrix fibers are chosen from yarns of polyether ether ketone fibers (PEEK), of phenylene polysulfide (PPS), polyethersulfone (PES), polyetherimide (PEI), as well as among the other fiber yarns known for this purpose, such as polyamides and polyimides.

Selon un mode de réalisation préféré de l'invention, les proportions relatives des fibres de renfort et des fibres matrices thermoplastiques, proportions qui peuvent, bien entendu, varier en fonction des caractéristiques des fibres matrices et en particulier de leur viscosité à chaud, se situent aux environs de 65 % pour les fibres de renfort et de 35 % pour les fibres matrices thermoplastiques.According to a preferred embodiment of the invention, the relative proportions of the reinforcing fibers and of the thermoplastic matrix fibers, proportions which can, of course, vary as a function of the characteristics of the matrix fibers and in particular of their viscosity when hot, are situated around 65% for reinforcing fibers and 35% for thermoplastic matrix fibers.

L'invention a également pour objet un procédé d'obtention des fils hybrides pour matériaux composites selon l'invention.The invention also relates to a process for obtaining hybrid wires for composite materials according to the invention.

Selon ce procédé, on soumet des multifilaments de fibres de renfort et des multifilaments de fibres matrices thermoplastiques à un processus séparé de craquage par étirage lent et progressif, puis on assemble les rubans de fibres discontinues ainsi obtenus sur une machine d'étirage type intersecting, le ruban sortant de cette machine d'étirage étant ensuite assemblé sur une seconde machine d'étirage avec d'autres rubans identiques, cette opération étant répétée plusieurs fois de façon à réaliser le mélange le plus intime possible, le ruban final obtenu étant ensuite soumis aux opérations classiques de filature de fibres longues : passage sur banc à broches, filature proprement dite, bobinage, assemblage et retordage.According to this process, multifilaments of reinforcing fibers and multifilaments of thermoplastic matrix fibers are subjected to a separate process of cracking by slow and progressive drawing, then the ribbons of staple fibers thus obtained are assembled on a drawing machine of intersecting type, the ribbon leaving this stretching machine then being assembled on a second stretching machine with other identical ribbons, this operation being repeated several times so as to produce the most intimate mixture possible, the final ribbon obtained then being subjected in conventional long fiber spinning operations: passage on a spindle bench, actual spinning, winding, assembly and twisting.

Les filés ainsi obtenus sont aptes à être transformés par tissage, tricotage ou tressage pour l'obtention de matériaux composites présentant de nombreux avantages par rapport aux matériaux du même type obtenus selon les procédés de la technique antérieure.The yarns thus obtained are capable of being transformed by weaving, knitting or braiding to obtain composite materials having numerous advantages over materials of the same type obtained according to the processes of the prior art.

Ces avantages sont les suivants :
- une très bonne mouillabilité des fibres de renfort,
- un très faible taux de vide,
- une drapabilité des surfaces textiles permettant le moulage des surfaces développables ou non ;
- une très bonne isotropie du matériau dans la direction des fibres de renfort,
- une excellente résistance au délaminage. En fait, le matériau se présente comme un solide monolithique qui a "oublié" sa structure initiale stratifiée.These are:
- very good wettability of the reinforcing fibers,
- a very low vacuum rate,
- drapability of textile surfaces allowing the molding of developable surfaces or not;
- a very good isotropy of the material in the direction of the reinforcing fibers,
- excellent resistance to delamination. In fact, the material presents itself as a monolithic solid which has "forgotten" its initial stratified structure.

Le composite obtenu présente, en outre, de très bonnes aptitutdes à l'estampage à chaud.The composite obtained also exhibits very good aptitudes for hot stamping.

Le procédé d'obtention des fils hybrides pour matériaux composites selon l'invention va maintenant être décrit plus en détail en référence au dessin schématique annexé qui l'illustre sans nullement le limiter. Dans ce dessin :

  • Figure 1 est un diagramme de longueurs des fibres ayant été soumises à l'opération de craquage ;
  • Figure 2 est une vue très schématique de l'installation de craquage et,
  • Figure 3 est une vue très schématique de l'installation de mélange des fibres craquées conduisant à l'obtention d'un ruban de filés de fibres hybrides selon l'invention.
The process for obtaining hybrid wires for composite materials according to the invention will now be described in more detail with reference to the attached diagrammatic drawing which illustrates it without in any way limiting it. In this drawing:
  • Figure 1 is a length diagram of the fibers having been subjected to the cracking operation;
  • Figure 2 is a very schematic view of the cracking installation and,
  • Figure 3 is a very schematic view of the installation for mixing the cracked fibers leading to the production of a ribbon of hybrid fiber yarns according to the invention.

Sur les figures, les fibres de renfort sont désignées de façon générale par 2 et les fibres de matrice thermoplastique par 3.In the figures, the reinforcing fibers are generally designated by 2 and the thermoplastic matrix fibers by 3 .

Sur l'installation de craquage représentée à la figure 2, les câbles de multifilaments alimentés à partir des bobines 10 (qu'il s'agisse de multi­filaments de fils de renfort ou de fils de matrice thermoplastique) sont soumis à une opération de craquage par étirage et rupture contrôlée, les vitesses des zones d'étirage 11,12 et des zones de craquage 13,14 augmentant progressi­vement de telle sorte que :
V₁₀ < V₁₂ < V₁₃ < V₁₄
ce qui permet d'obtenir à la sortie un ruban de fibres discontinues dont la longueur moyenne est parfaitement maîtrisée.On the cracking installation shown in FIG. 2, the multifilament cables supplied from the coils 10 (whether they are multifilaments of reinforcing threads or threads of thermoplastic matrix) are subjected to a cracking operation by stretching and controlled breaking, the speeds of the stretching zones 11,12 and of the cracking zones 13,14 gradually increasing so that:
V₁₀ <V₁₂ <V₁₃ <V₁₄
which makes it possible to obtain at the outlet a ribbon of staple fibers whose average length is perfectly controlled.

Cette longueur est d'ailleurs illustrée par le diagramme de la figure 1 sur laquelle on a porté en ordonnées les longueurs de fibres en mm et en abscisses la population des fibres exprimée en pourcentage du nombre de fibres de cette population.This length is moreover illustrated by the diagram of FIG. 1 on which the lengths of fibers in mm are plotted on the ordinate and the abscissa is the population of fibers expressed as a percentage of the number of fibers in this population.

Il est bien évident que l'on utilisera des installations de craquage différentes pour obtenir, d'une part, des rubans de fibres discontinues de renfort 2 et, d'autre part, des rubans de fibres discontinues de matrice thermoplastique 3.It is obvious that different cracking installations will be used to obtain, on the one hand, ribbons of staple fibers of reinforcement 2 and, on the other hand, ribbons of staple fibers of thermoplastic matrix 3 .

Les différents rubans 2 et 3 ainsi obtenus sont ensuite amenés, par tout moyen connu en soi, au dispositif de mélange représenté à la figure 3.The different ribbons 2 and 3 thus obtained are then brought, by any means known per se, to the mixing device shown in FIG. 3.

Il s'agit d'une installation comportant une zone d'étirage 15, du type intersecting, qui permet d'obtenir, à la sortie un ruban non homogène 4 de fibres de renfort 2 et de fibres matrices 3 mélangées qui comporte des "traces" de chacun des composants.It is an installation comprising a drawing zone 15 , of the intersecting type, which makes it possible to obtain, at the outlet, a non-homogeneous ribbon 4 of reinforcing fibers 2 and of matrix fibers 3 mixed which comprises "traces" of each of the components.

Chaque ruban 4 ainsi obtenu sera, à la sortie de cette machine, assemblé sur une installation similaire à celle représentée à la figure 3 avec dix autres rubans identiques ; cette opération sera répétée environ quatre fois ce qui permettra d'obtenir les filés de fibres hybrides selon l'invention dans les proportions finales désirées de fibres de renfort et de fibres thermo­plastiques, ces proportions, variant, bien évidemment, en fonction des ca­ractéristiques des fibres de matrices thermoplastiques et en particulier de leur viscosité à chaud, se situant en général aux environs de 65 % de fibres de renfort et aux environs de 35 % de fibres matrices thermoplastique. Ces filés de fibres sont constitués d'un mélange intime de fibres de renfort et de fibres matrices thermoplastiques.Each ribbon 4 thus obtained will, on leaving this machine, be assembled on an installation similar to that shown in FIG. 3 with ten other identical ribbons; this operation will be repeated approximately four times, which will make it possible to obtain the yarns of hybrid fibers according to the invention in the desired final proportions of reinforcing fibers and of thermoplastic fibers, these proportions varying, of course, depending on the characteristics of the fibers. thermoplastic matrices and in particular their hot viscosity, generally being around 65% of reinforcing fibers and around 35% of thermoplastic matrix fibers. These fiber yarns consist of an intimate mixture of reinforcing fibers and thermoplastic matrix fibers.

Ce ruban subit ensuite les opérations classiques de filature en technique fibres longues :
- passage sur bancs à broches,
- filature,
- bobinage,
- assemblage,
- retordage,
ce qui permet d'obtenir le filé de fibres hybrides pour matériaux composites à matrice thermoplastique selon l'invention, ce filé de fibres étant, bien entendu, susceptible d'être transformé par la suite par tissage, tricotage ou tressage.This ribbon then undergoes conventional spinning operations in the long fiber technique:
- passage on pin benches,
- spinning,
- winding,
- assembly,
- twisting,
which makes it possible to obtain the hybrid fiber yarn for composite materials with a thermoplastic matrix according to the invention, this fiber yarn being, of course, capable of being subsequently transformed by weaving, knitting or braiding.

Ce filé ne possède pas de caractéristiques mécaniques particulières, car au moment de la mise en forme, la fibre matrice thermoplastique fond en emprisonnant les fibres de renfort. Les performances du composite ainsi obtenu ne sont donc fonction que des caractéristiques des fibres élémentaires et de leur accrochage dans la matrice thermoplastique.This yarn has no particular mechanical characteristics, because at the time of shaping, the thermoplastic matrix fiber melts by trapping the reinforcing fibers. The performance of the composite thus obtained therefore depends only on the characteristics of the elementary fibers and their attachment to the thermoplastic matrix.

Le tableau I ci-après résume les propriétés de trois types de filés de fibres hybrides selon l'invention dans lesquels on a fait varier tant les fibres de renfort que les fibres matrices thermoplastiques.

Figure imgb0001
Table I below summarizes the properties of three types of hybrid fiber yarns according to the invention in which both the reinforcing fibers and the thermoplastic matrix fibers have been varied.
Figure imgb0001

Le Tableau II compare les propriétés de différents matériaux composites réalisés à partir de filés de fibres hybrides selon l'invention, comparativement à des composites réalisés selon la technique antérieure et décrits dans la littérature. TABLEAU II Références échantillons Taux de fils en volume % Densité g/cm² Taux de vide % FLEXION CISAILLEMENT TRACTION Contrainte rupture (GPa) Module (GPa) Contrainte rupture (MPa) Contrainte rupture (GPa) Module (GPa) 1 56 1,60 1,2 0,94 53,5 - - - 2 56,7 1,60 0,9 0,86 65,4 - - - 3 58,2 1,61 0,1 - - 57,3 - - 4 56 1,60 0,4 - - 59,3 - - 5 56,7 1.62 0,9 - - - 0,96 44,7 6 58,9 1,62 0,9 - - - 0,89 44,7 SAMPE, Jal Jan-Feb 88. p 8-10 * 51 1,54 1,6 1,19 91,6 - 1,43 120,6 53 1,58 0,5 1,34 99,9 - 1,59 122,6 COmposite N°3-Mai-Juin 1986 - p121-128 ** 56 - - 1,4 126 - 1,2 - * : Tableau IV page 10 ** : Tableau N° II page 123 - dernière colonne. Table II compares the properties of different composite materials produced from hybrid fiber yarns according to the invention, compared to composites produced according to the prior art and described in the literature. TABLE II Sample references Yarn rate by volume% Density g / cm² Vacuum rate% FLEXION SHEARING TRACTION Breaking stress (GPa) Module (GPa) Breaking stress (MPa) Breaking stress (GPa) Module (GPa) 1 56 1.60 1.2 0.94 53.5 - - - 2 56.7 1.60 0.9 0.86 65.4 - - - 3 58.2 1.61 0.1 - - 57.3 - - 4 56 1.60 0.4 - - 59.3 - - 5 56.7 1.62 0.9 - - - 0.96 44.7 6 58.9 1.62 0.9 - - - 0.89 44.7 SAMPE, Jal Jan-Feb 88. p 8-10 * 51 1.54 1.6 1.19 91.6 - 1.43 120.6 53 1.58 0.5 1.34 99.9 - 1.59 122.6 COmposite N ° 3-May-June 1986 - p121-128 ** 56 - - 1.4 126 - 1.2 - *: Table IV page 10 **: Table N ° II page 123 - last column.

Claims (5)

1- Fils hybrides pour composites à matrice thermoplastique, caractérisés en ce qu'ils sont constitués d'un mélange intime de filés de fibres de renfort (2) et de filés de fibres matrices thermoplastiques (3), chacun des filés de fibres ayant été préalablement obtenu par craquage selon un étirage lent et progressif de multifilaments. 1- Hybrid yarns for thermoplastic matrix composites, characterized in that they consist of an intimate mixture of yarns of reinforcing fibers (2) and yarns of thermoplastic matrix fibers (3), each of the yarns of fibers having been previously obtained by cracking according to a slow and progressive drawing of multifilaments. 2- Fils hybrides selon la revendication 1, caractérisés en ce que les filés de fibres de renfort sont choisis parmi les filés de fibres de carbone, d'aramide ou de verre. 2- Hybrid yarns according to claim 1, characterized in that the yarns of reinforcing fibers are chosen from yarns of carbon, aramid or glass fibers. 3- Fils hybrides selon la revendication 1, caractérisés en ce que les filés de fibres matrices thermoplastiques sont choisis parmi les filés de fibres de polyéther éther cétone (PEEK), de polysulfure de phénylène (PPS), de polyéthersulfone (PES), de polyétherimide (PEI), ainsi que parmi les autres filés de fibres connus dans ce but, tels que les polyamides et les polyimides. 3- Hybrid yarns according to claim 1, characterized in that the yarns of thermoplastic matrix fibers are chosen from yarns of polyether ether ketone fibers (PEEK), of phenylene polysulfide (PPS), of polyethersulfone (PES), of polyetherimide (PEI), as well as among the other known fiber yarns for this purpose, such as polyamides and polyimides. 4- Fils hybrides selon l'une quelconque des revendications 1 à 3, caractérisés en ce que les proportions relatives des fibres de renfort et des fibres matrices thermoplastiques, se situent aux environs de 65 % pour les fibres de renfort et de 35 % pour les fibres matrices thermoplastiques. 4- Hybrid yarns according to any one of claims 1 to 3, characterized in that the relative proportions of the reinforcing fibers and of the thermoplastic matrix fibers are around 65% for the reinforcing fibers and 35% for the thermoplastic matrix fibers. 5- Procédé d'obtention des fils hybrides pour matériaux composites selon l'une quelconque des revendications 1 à 4, caractérisé en ce que l'on soumet des multifilaments de fibres de renfort (2) et des multifilaments de fibres matrices thermoplastiques (3) à un processus séparé de craquage par étirage lent et progressif, puis en ce que l'on assemble les rubans (2,3) de fibres discontinues ainsi obtenus sur une machine d'étirage (15) inter­secting, le ruban (4) sortant de cette machine d'étirage étant ensuite assemblé sur une seconde machine d'étirage avec d'autres rubans identiques, cette opération étant répétée plusieurs fois de façon à réaliser le mélange le plus intime possible, le ruban final obtenu étant ensuite soumis aux opérations classiques de filature de fibres longues : passage sur banc à broches, filature proprement dite, bobinage, assemblage et retordage. 5- A method for obtaining hybrid son for composite materials according to any one of claims 1 to 4, characterized in that one subjects multifilaments of reinforcing fibers (2) and multifilaments of thermoplastic matrix fibers (3) to a separate process of cracking by slow and progressive drawing, then in that the ribbons (2,3) of staple fibers thus obtained are assembled on a drawing machine (15) intersecting, the ribbon (4) coming out of this drawing machine then being assembled on a second drawing machine with other identical ribbons, this operation being repeated several times so as to produce the most intimate mixture possible, the final ribbon obtained then being subjected to the conventional operations of spinning of long fibers: passage on a bench with spindles, actual spinning, winding, assembly and twisting.
EP89420275A 1988-07-29 1989-07-25 Hybrid yarn for composite materials made from thermoplastic matrix and method for producing the same Revoked EP0354139B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89420275T ATE84079T1 (en) 1988-07-29 1989-07-25 MIXED YARN FOR FABRICS MADE OF DIFFERENT MATERIALS USING THERMOPLASTICS AND PROCESSES FOR THEIR PRODUCTION.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8810541 1988-07-29
FR8810541A FR2634790B1 (en) 1988-07-29 1988-07-29 HYBRID THREADS FOR COMPOSITE MATERIALS WITH THERMOPLASTIC MATRIX AND PROCESS FOR PRODUCING THE SAME

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EP0354139A1 true EP0354139A1 (en) 1990-02-07
EP0354139B1 EP0354139B1 (en) 1992-12-30

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EP89420275A Revoked EP0354139B1 (en) 1988-07-29 1989-07-25 Hybrid yarn for composite materials made from thermoplastic matrix and method for producing the same

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EP (1) EP0354139B1 (en)
JP (1) JPH02112427A (en)
AT (1) ATE84079T1 (en)
DE (1) DE68904140T2 (en)
ES (1) ES2037457T3 (en)
FR (1) FR2634790B1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0466618A1 (en) * 1990-07-13 1992-01-15 Sa Schappe Hybrid yarn for composite materials made from thermoplastic matrix and process for producing the same
EP0486884A1 (en) * 1990-11-20 1992-05-27 Cytec Technology Corp. Method for making hybrid yarn
EP0737763A2 (en) * 1995-04-10 1996-10-16 Hoechst Aktiengesellschaft Production and application of a permanently deformable textil material made out of hybrid yarn
EP1319740A1 (en) * 2001-12-12 2003-06-18 Hexcel Corporation Stretch breaking of fibers
US7387828B2 (en) * 2000-07-13 2008-06-17 Sa Schappe Unidirectional sheet made of a composite
US20110039047A1 (en) * 2009-03-27 2011-02-17 Carson William V System and method for forming thermoplastic-composite tubing
EP2966204A4 (en) * 2013-03-06 2017-02-01 Mitsubishi Gas Chemical Company, Inc. Combined filamanet yarn, woven and knitted fabric, composite material, and process for manufacturing composite material

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2689145B1 (en) * 1992-03-31 1996-04-05 Brochier Sa WIRE FOR TEXTILE REINFORCEMENT WITH CONTROLLED ELECTRICAL LOSSES, AND MANUFACTURING METHOD THEREOF.
JP2012057276A (en) * 2010-09-10 2012-03-22 Ichimura Sangyo Co Ltd Yarn for weaving or knitting and woven or knitted fabric using the same, and inorganic fiber-reinforced resin molded article and production method thereof
CN112030278B (en) * 2020-07-24 2021-08-13 江苏恒力化纤股份有限公司 Intermittent grading carding and cutting equipment for carbon fiber filaments
CN113564778B (en) * 2021-07-26 2022-08-12 常州天马集团有限公司（原建材二五三厂） Production process of special glass fiber cloth for thermoplastic glass fiber reinforced PP composite material

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US3435606A (en) * 1966-06-07 1969-04-01 Ici Ltd Process for making elastomer/non-elastomer staple fibre yarns
FR2301612A1 (en) * 1975-02-18 1976-09-17 Tematex Spa Auxiliary breaker for synthetic and artificial fibres - defelting roller groups separate fibres and present web to breakers
BE893914A (en) * 1982-07-22 1982-11-16 Pirson & Digneffe Sa Fibre lap blending machine - having twin drawing units arranged one above the other colinear with third blending unit
US4477526A (en) * 1982-06-18 1984-10-16 E. I. Du Pont De Nemours And Company High strength aramid spun yarn
EP0156600A1 (en) * 1984-03-15 1985-10-02 Celanese Corporation Composite fiber blends

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JPS5172637A (en) * 1974-12-19 1976-06-23 Asahi Chemical Ind BOSEKISHIRAIKUNACHOSENISHISEIZOHO

Patent Citations (5)

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Publication number Priority date Publication date Assignee Title
US3435606A (en) * 1966-06-07 1969-04-01 Ici Ltd Process for making elastomer/non-elastomer staple fibre yarns
FR2301612A1 (en) * 1975-02-18 1976-09-17 Tematex Spa Auxiliary breaker for synthetic and artificial fibres - defelting roller groups separate fibres and present web to breakers
US4477526A (en) * 1982-06-18 1984-10-16 E. I. Du Pont De Nemours And Company High strength aramid spun yarn
BE893914A (en) * 1982-07-22 1982-11-16 Pirson & Digneffe Sa Fibre lap blending machine - having twin drawing units arranged one above the other colinear with third blending unit
EP0156600A1 (en) * 1984-03-15 1985-10-02 Celanese Corporation Composite fiber blends

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0466618A1 (en) * 1990-07-13 1992-01-15 Sa Schappe Hybrid yarn for composite materials made from thermoplastic matrix and process for producing the same
FR2664621A1 (en) * 1990-07-13 1992-01-17 Schappe Sa HYBRID WIRE FOR THERMOPLASTIC MATRIX COMPOSITE MATERIALS AND PROCESS FOR OBTAINING IT.
US5910361A (en) * 1990-07-13 1999-06-08 Sa Schappe Hybrid yarn for composite materials with thermoplastic matrix and method for obtaining same
EP0486884A1 (en) * 1990-11-20 1992-05-27 Cytec Technology Corp. Method for making hybrid yarn
EP0737763A2 (en) * 1995-04-10 1996-10-16 Hoechst Aktiengesellschaft Production and application of a permanently deformable textil material made out of hybrid yarn
EP0737763A3 (en) * 1995-04-10 1997-01-22 Hoechst Ag Production and application of a permanently deformable textil material made out of hybrid yarn
US5792555A (en) * 1995-04-10 1998-08-11 Hoechst Aktiengesellschaft Hybrid yarn and permanent deformation capable textile material produced therefrom, its production and use
US7387828B2 (en) * 2000-07-13 2008-06-17 Sa Schappe Unidirectional sheet made of a composite
EP1319740A1 (en) * 2001-12-12 2003-06-18 Hexcel Corporation Stretch breaking of fibers
US20110039047A1 (en) * 2009-03-27 2011-02-17 Carson William V System and method for forming thermoplastic-composite tubing
EP2966204A4 (en) * 2013-03-06 2017-02-01 Mitsubishi Gas Chemical Company, Inc. Combined filamanet yarn, woven and knitted fabric, composite material, and process for manufacturing composite material

Also Published As

Publication number Publication date
FR2634790A1 (en) 1990-02-02
ATE84079T1 (en) 1993-01-15
JPH02112427A (en) 1990-04-25
DE68904140D1 (en) 1993-02-11
DE68904140T2 (en) 1993-05-06
FR2634790B1 (en) 1990-09-28
EP0354139B1 (en) 1992-12-30
ES2037457T3 (en) 1993-06-16

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