WO2018147072A1 - 繊維構造体及び繊維強化複合材 - Google Patents

繊維構造体及び繊維強化複合材 Download PDF

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Publication number
WO2018147072A1
WO2018147072A1 PCT/JP2018/001963 JP2018001963W WO2018147072A1 WO 2018147072 A1 WO2018147072 A1 WO 2018147072A1 JP 2018001963 W JP2018001963 W JP 2018001963W WO 2018147072 A1 WO2018147072 A1 WO 2018147072A1
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WIPO (PCT)
Prior art keywords
yarn
fiber structure
fiber
woven
outermost
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
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PCT/JP2018/001963
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English (en)
French (fr)
Japanese (ja)
Inventor
河原真梨
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyota Industries Corp
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Toyota Industries Corp
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Publication date
Application filed by Toyota Industries Corp filed Critical Toyota Industries Corp
Priority to CN201880009765.8A priority Critical patent/CN110291239A/zh
Priority to US16/484,230 priority patent/US20200032433A1/en
Priority to EP18751594.5A priority patent/EP3581690A4/en
Publication of WO2018147072A1 publication Critical patent/WO2018147072A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D5/00—Selvedges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/024—Woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/06—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer characterised by a fibrous or filamentary layer mechanically connected, e.g. by needling to another layer, e.g. of fibres, of paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • B32B5/262—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary characterised by one fibrous or filamentary layer being a woven fabric layer
    • B32B5/263—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary characterised by one fibrous or filamentary layer being a woven fabric layer next to one or more woven fabric layers
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D1/00—Woven fabrics designed to make specified articles
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D11/00—Double or multi-ply fabrics not otherwise provided for
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M17/00—Producing multi-layer textile fabrics
    • D06M17/04—Producing multi-layer textile fabrics by applying synthetic resins as adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/021—Fibrous or filamentary layer
    • B32B2260/023—Two or more layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/04—Impregnation, embedding, or binder material
    • B32B2260/046—Synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0253—Polyolefin fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0261—Polyamide fibres
    • B32B2262/0269—Aromatic polyamide fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/105—Ceramic fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/106—Carbon fibres, e.g. graphite fibres
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2505/00—Industrial
    • D10B2505/02—Reinforcing materials; Prepregs

Definitions

  • the present invention relates to a multi-layered textile fiber structure having a first yarn and a second yarn comprising a bundle of reinforcing fibers, and a fiber-reinforced composite material.
  • Fiber reinforced composites are widely used as lightweight structural materials.
  • a fiber structure as a reinforcing base material for a fiber reinforced composite material
  • a fiber reinforced composite material in which a resin is used as a matrix in this fiber structure is used as a structural material for aircraft, automobiles, buildings and the like.
  • a multilayer fabric is used as a fiber structure.
  • a laminated fabric as a multilayer fabric is formed, for example, by laminating a plurality of single layer fabrics formed by plain weave. In addition, it may be formed by bonding the plurality of laminated fabrics in the laminating direction.
  • the woven ends of the fiber structure for example, the woven end where the end of the warp is located along the main axis direction of the warp may be unraveled. Then, there is a possibility that the weft extending perpendicularly to the warp may come off the unwoven end. Therefore, in order to suppress the unraveling of the woven end of the fibrous structure, for example, in Patent Document 1, a tape is attached to the woven end of the fibrous structure.
  • An object of the present invention is to provide a fiber structure and a fiber reinforced composite material which can suppress the unwinding of a woven end without adding another member.
  • a fiber structure for solving the above problems is a fiber structure comprising a bundle of reinforcing fibers and a multilayer fabric having a first yarn and a second yarn arranged in directions orthogonal to each other.
  • a first woven end of the multilayer fabric at which the end of the first yarn is located along the first yarn yarn main axis direction, and the first woven end of the second yarn along the second yarn yarn main axis direction A second woven end of the multi-layer woven fabric on which two yarn ends are located, and at least one of the first woven end and the second woven end including an eyelet;
  • the detents are formed by entwining the reinforcing fibers with yarns overlapping in the laminating direction of the multilayer fabric, and the blind portions form the woven end Of the other yarns arranged in the direction of the main axis of the yarn
  • the present invention is characterized in that it is formed on at least one of the outermost yarn arranged and the end portion of the one yarn located closer to the end of the one
  • the sealing portion when the sealing portion is formed on the outermost yarn, the reinforcing fibers are intertwined between the yarns overlapping in the stacking direction with respect to the outermost yarn, and the detachment of the outermost yarn from the woven end is suppressed Be done.
  • the closing portion is formed at the end of one yarn, the reinforcing fibers are intertwined with each other at the end of one yarn in the main thread direction of the one yarn rather than the outermost yarn. It is suppressed that the outermost yarn is pulled out between the ends of one yarn. Therefore, the formation of the sealing portion can suppress the unwinding of the woven end.
  • the sealing portion is formed by entangled reinforcing fibers with yarns overlapping in the stacking direction. Therefore, no separate member is required to prevent the unwinding of the woven end.
  • the sealing portion may be provided only on the outermost yarn. According to this, in the fiber structure, the sealing portion is not formed inside the outermost yarn along the yarn main axis direction of one yarn. For this reason, it is possible to minimize the meandering of the reinforcing fiber generated by forming the sealing portion.
  • the first yarn and the second yarn may be formed of non-continuous fibers. According to this, in the sealing portion, the non-continuous fibers are intertwined between the yarns overlapping in the stacking direction, so that many portions where the fibers are intertwined can be formed, and the unfolding can be effectively suppressed.
  • a fiber-reinforced composite material for solving the above-mentioned problems is a fiber-reinforced composite material in which a reinforcing base made of a fiber structure is impregnated with a matrix resin, and the fiber structure is claim 1 to 3
  • the gist is that it is the fiber structure according to any one of the above.
  • the blind portion is formed by entangled reinforcing fibers with yarns overlapping in the stacking direction. Therefore, no separate member is required to prevent the unwinding of the woven end. Therefore, in the fiber-reinforced composite material in which the fiber structure is impregnated with the matrix resin, the separate member does not adversely affect the composite of the matrix resin.
  • the partial top view which shows the fiber structure of embodiment.
  • the figure which looked at the fiber structure of embodiment from the arrow B of FIG. The enlarged view which shows a blind part.
  • the fiber reinforced composite material 10 is configured by impregnating a fiber structure 11 made of a multilayer fabric with a matrix resin Ma.
  • a matrix resin Ma for example, an epoxy resin of a thermosetting resin is used.
  • the fiber structure 11 is configured by laminating a plurality of woven fabrics 20.
  • each fabric 20 is a combination of a plurality of warp yarns 21 as a first yarn and a plurality of weft yarns 31 as a second yarn, and has a square shape in plan view.
  • Each fabric 20 is formed by plain-weaving a warp yarn 21 and a weft yarn 31.
  • the warp yarn 21 and the weft yarn 31 are arranged orthogonal to each other.
  • the warp yarns 21 and the weft yarns 31 are formed of non-continuous fibers 11 a.
  • an organic fiber or an inorganic fiber which is a reinforcing fiber may be used, and as the organic fiber, an aramid fiber, a poly-p-phenylene benzobisoxazole fiber, an ultrahigh molecular weight polyethylene fiber, etc. may be mentioned.
  • the inorganic fibers include carbon fibers, glass fibers, ceramic fibers and the like.
  • the direction in which the main yarn axis L1 of the warp 21 extends is the first direction X of the fiber structure 11, the direction in which the main yarn L2 of the weft 31 extends, and the direction perpendicular to the first direction X is the second direction of the fiber structure 11.
  • the plurality of warps 21 are arranged in parallel with each other in the second direction Y of the fiber structure 11.
  • the plurality of weft yarns 31 are arranged in parallel to each other in the first direction X of the fiber structure 11. As shown in FIG.
  • the fiber structure 11 is provided with a first woven end 12 at a portion where each end 21 a of the warp 21 along the main axis direction (first direction X) of the warp 21 is located.
  • the weft 31 is located inside the first direction X (closer to the center of the fiber structure 11) than the end 21 a of each warp 21.
  • the weft yarns 31, among the plurality of weft yarns 31 arranged in the first direction X the weft yarn 31 arranged closest to the end 21a of the warp yarn 21 is regarded as the outermost weft yarn 32 as the outermost yarn.
  • the warp yarn 21 becomes one yarn and the weft yarn 31 becomes the other yarn, and the outermost weft yarn 32 is arranged closer to the end 21 a of the warp yarn 21. Therefore, in the first woven end 12, the outermost weft 32 is positioned closer to the center of the fiber structure 11 than the end 21 a of each warp 21.
  • the fiber structure 11 is provided with a second woven end 13 at a portion where each end 31 a of the weft 31 is located along the main yarn direction (second direction Y) of the weft 31.
  • the warp yarn 21 is positioned inside the second direction Y (closer to the center of the fiber structure 11) than the end portion 31 a of each weft yarn 31.
  • the warps 21 arranged at the outermost side of the warps 21 are regarded as the outermost warps 22 as the outermost threads.
  • the outermost warp yarn 22 is positioned closer to the center of the fiber structure 11 than the end portions 31 a of the respective weft yarns 31.
  • the weft yarn 31 becomes one yarn and the warp yarn 21 becomes the other yarn, and the outermost warp yarn 22 is arranged closer to the end 31 a of the weft yarn 31.
  • the fiber structure 11 includes the sealing portions 14 at the first woven end 12 and the second woven end 13.
  • the sealing portion 14 provided at the first woven end portion 12 is formed by subjecting the outermost weft yarn 32 to needle punching.
  • the sealing portion 14 provided at the first woven end 12 is an outermost weft 32 and a warp 21 overlapping the outermost weft 32 in the laminating direction in each fabric 20. And entangled with each other in the non-continuous fibers 11a. Further, in the sealing portion 14 provided at the first woven end portion 12, the outermost weft 32 of one fabric 20 and the warp 21 of the other fabric 20 are between the fabrics 20 overlapping in the stacking direction, The non-continuous fibers 11a are formed to be intertwined with each other. Further, although not shown, when the needles N pass through both sides in the width direction of each warp 21 and are driven in, the non-continuous fibers 11 a are formed by the wefts 31 overlapping each other in the stacking direction. It is done.
  • the sealing portion 14 provided at the second woven end portion 13 is formed by subjecting the outermost warp yarn 22 to needle punching.
  • the sealing portion 14 provided at the second woven end portion 13 entangles the outermost warp yarn 22 and the weft yarn 31 overlapping the outermost warp yarn 22 in the stacking direction with the non-continuous fibers 11a. It is formed.
  • the outermost warp 22 of one fabric 20 and the weft 31 of the other fabric 20 are between the fabrics 20 overlapping in the stacking direction, The non-continuous fibers 11a are formed to be intertwined with each other.
  • the non-continuous fibers 11a are formed by intertwining the weft yarns 31 overlapping each other in the laminating direction. It is done.
  • the non-continuous fibers 11 a meander between the warps 21 and wefts 31 overlapping with each other in the stacking direction and the warps 21 and wefts 31 and are entangled complicatedly. Since the warp yarns 21 and the weft yarns 31 are formed from the non-continuous fibers 11 a, in the sealing portion 14, the non-continuous fibers 11 a are intertwined in many places.
  • the fiber structure 11 made of the multilayer fabric configured as described above impregnates and hardens the matrix resin Ma to form the fiber reinforced composite material 10.
  • the impregnation and curing of the matrix resin Ma is performed by, for example, the RTM (resin transfer molding) method.
  • RTM resin transfer molding
  • the sealing portion 14 provided in the fiber structure 11 prevents the first woven end 12 and the second woven end 13 from being unwound.
  • the sealing portion 14 is formed by entangling reinforcing fibers of yarns overlapping in the stacking direction. Therefore, it is possible to suppress the unraveling of the first woven end 12 and the second woven end 13 without adding another member, and it is possible to suppress an increase in manufacturing cost.
  • the fiber reinforced composite material 10 using the fiber structure 11 it is possible to suppress the unwinding without providing another part. Therefore, as in the case where another component is added to suppress the unwinding, the impregnation failure of the matrix resin Ma caused by the other component (adverse effect on the composite of the matrix resin Ma) does not occur, and the other component is the cause The strength reduction of the fiber reinforced composite 10 does not occur.
  • the sealing portion 14 provided at the first woven end portion 12 is formed by subjecting the outermost weft yarn 32 to needle punching. For this reason, the outermost weft yarn 32 which is likely to be dislodged from the first woven end 12 can be entangled with the warp yarn 21, and the yarn omission of the outermost weft yarn 32 can be suppressed. Further, the sealing portion 14 provided at the second woven end portion 13 is formed by subjecting the outermost warp yarn 22 to a needle punch. Therefore, it is possible to cause the outermost warp 22 having a possibility of threading out from the second woven end 13 to be entangled with the weft 31 and to prevent the threading out of the outermost warp 22.
  • the sealing portion 14 provided in the first woven end portion 12 is formed by subjecting the outermost weft 32 to needle punching, and the sealing portion 14 provided in the second woven end portion 13 is the outermost
  • the warp yarn 22 is formed by needle punching. Therefore, in the fiber structure 11, the sealing portion 14 does not exist inside the outermost weft 32 in the first direction X (closer to the center of the fiber structure 11), and inside the outermost warp 22 in the second direction Y ( The sealing portion 14 does not exist in the center of the fiber structure 11).
  • the obtained fiber-reinforced composite material 10 it is possible to minimize the meandering of the non-continuous fibers 11a generated by forming the filling portions 14 and to minimize the strength reduction caused by the meandering of the non-continuous fibers 11a. .
  • the warp yarns 21 and the weft yarns 31 are formed of non-continuous fibers 11a. For this reason, in the sealing portion 14, a large number of locations where the non-continuous fibers 11a are intertwined between the warp yarn 21 and the weft yarn 31, the warp yarns 21 and the weft yarns 31 overlapping in the stacking direction are formed. Therefore, it is possible to suppress the unfolding at the sealing portion 14 and to effectively suppress the unfolding of the first woven end 12 and the second woven end 13.
  • the above embodiment may be modified as follows.
  • the warp yarns 21 and weft yarns 31 may not be formed from the non-continuous fibers 11a, and may be continuous yarns formed by bundling several hundreds to several tens of thousands of continuous fibers.
  • the fiber structure 40 may be a multilayer fabric formed by multilayer weaving.
  • the fiber structure 40 includes warp layers 41, 43 and 45 in which warps 21 as first yarns are arranged in parallel to one another, and weft layers 42 and 44 in which wefts 31 as second yarns are arranged in parallel to one another. , 46.
  • the fiber structure 40 includes a first warp layer 41, a first weft layer 42 disposed below the first warp layer 41, and a second warp disposed below the first weft layer 42.
  • the third weft layer 46 is a multilayer fabric formed by multilayer weaving.
  • the first warp layer 41, the first weft layer 42, the second warp layer 43, the second weft layer 44, the third warp layer 45, and the third weft layer 46 are wound in the stacking direction by the binding yarns 48. It is bound.
  • the binding yarn 48 is for holding the shape of the fiber structure 40 and is one of warps.
  • the fiber structure 40 includes the sealing portion 14 at the first woven end portion 51 where each end 21 a of the warp 21 along the main axis direction of the warp 21 is located. Further, although not shown, the fiber structure 40 is provided with the sealing portion 14 at the second woven end where the respective ends 31a of the weft 31 along the main axis direction of the weft 31 are located.
  • the weft threads 31 inside the first direction X with respect to the outermost weft threads 32 are needle-punched to make the sealing portion 14 along the first direction X
  • a plurality of blind portions 14 may be provided along the second direction Y Good.
  • the sealing portion 14 may be provided only at the end 21 a of the warp 21 located outside the outermost weft 32 in the first direction X. That is, the sealing portion 14 may be provided at the end 21 a of the warp 21 located closer to the end of the warp main axis direction (first direction X) of the warp 21 as one yarn than the outermost weft 32.
  • the sealing portion 14 may be provided only at the end portion 31 a of the weft yarn 31 located outside the outermost warp yarn 22 in the second direction Y. That is, the sealing portion 14 may be provided at the end 31 a of the weft yarn 31 located closer to the end of the yarn main axis direction (second direction Y) of the weft yarn 31 as one yarn than the outermost warp yarn 22.
  • the non-continuous fibers 11 a are warps 21 overlapping each other in the stacking direction.
  • the outermost weft yarn 32 is restrained from being intertwined between the end portions 21 a of the warp yarns 21.
  • the non-continuous fibers 11a are intertwined between the weft yarns 31 overlapping in the lamination direction.
  • the sealing portion 14 is formed by winding the non-continuous fibers 11 a between the warps 21 and the wefts 31 that overlap in the stacking direction. Therefore, no separate member is needed to prevent the unwinding of the woven ends 12 and 13.
  • the outermost weft 32 may be needle-punched to add a sealing portion 14, or in the second woven end 13, the outermost warp 22 may be needle-punched. It may be added and the sealing part 14 may be added.
  • the first woven end 12 is comprised of the sealing portion 14 located at the outermost weft 32 and the sealing portion 14 located at the end 21 a of the warp 21. Can be effectively deterred.
  • the second woven end 13 is unwound by the closed portion 14 located at the outermost warp 22 and the closed portion 14 located at the end 31a of the weft 31. Can be effectively deterred.
  • the blind portion 14 may be provided on only one of the first woven end 12 or 51 and the second woven end 13 of the fiber structure 11 or 40. In this case, the end portions located on the upstream side and the downstream side in the direction in which the fiber structures 11 and 40 are woven are cut after the fiber structures 11 and 40 are manufactured.
  • the stoppers 14 may be provided, and the sealing members 14 may not be provided at both ends in the weave width direction.
  • Needle punch is used as a method of forming the sealing part 14, but tufting may be adopted to form the sealing part 14, and in addition, the reinforcing fibers (non-continuous fibers 11a) between the layers are intertwined Any method may be adopted as long as it can be used.
  • the woven fabric 20 is formed by plain weave, but the woven fabric 20 may be formed by satin weave or twill weave.
  • the number of weft layers and warp layers to be laminated may be changed as appropriate.
  • a fiber structure in which the sealing portion is formed by needle punching is formed by needle punching.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Woven Fabrics (AREA)
  • Reinforced Plastic Materials (AREA)
  • Knitting Of Fabric (AREA)
PCT/JP2018/001963 2017-02-08 2018-01-23 繊維構造体及び繊維強化複合材 Ceased WO2018147072A1 (ja)

Priority Applications (3)

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CN201880009765.8A CN110291239A (zh) 2017-02-08 2018-01-23 纤维结构体以及纤维增强复合材料
US16/484,230 US20200032433A1 (en) 2017-02-08 2018-01-23 Fiber structure and fiber reinforced composite material
EP18751594.5A EP3581690A4 (en) 2017-02-08 2018-01-23 FIBER STRUCTURE AND FIBER REINFORCED COMPOSITE MATERIAL

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JP2017021130A JP6620771B2 (ja) 2017-02-08 2017-02-08 繊維構造体及び繊維強化複合材
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JP7715075B2 (ja) * 2022-04-22 2025-07-30 株式会社豊田自動織機 繊維構造体及び繊維強化複合材

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JPH0586534A (ja) * 1990-12-03 1993-04-06 Soc Europ Propulsion <Sep> 複合材料製品製造のための耐火性繊維製プレフオームの製造方法
JP2002249957A (ja) 2001-02-20 2002-09-06 Hiroharu Oishibashi 拡繊糸織物の製造装置
JP2007182661A (ja) * 2005-12-09 2007-07-19 Toray Ind Inc 多軸成形材料、プリフォーム、ｆｒｐおよびそれらの製造方法
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JP2013011027A (ja) * 2011-06-28 2013-01-17 Toray Ind Inc 補強用織物およびその製造方法
WO2015129684A1 (ja) * 2014-02-28 2015-09-03 東レ株式会社 織物およびエアバッグ

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JP2002249957A (ja) 2001-02-20 2002-09-06 Hiroharu Oishibashi 拡繊糸織物の製造装置
JP2007182661A (ja) * 2005-12-09 2007-07-19 Toray Ind Inc 多軸成形材料、プリフォーム、ｆｒｐおよびそれらの製造方法
JP2011202304A (ja) * 2010-03-25 2011-10-13 Toray Ind Inc 繊維構造体およびその製造方法、ならびにプリフォーム
JP2013011027A (ja) * 2011-06-28 2013-01-17 Toray Ind Inc 補強用織物およびその製造方法
WO2015129684A1 (ja) * 2014-02-28 2015-09-03 東レ株式会社 織物およびエアバッグ

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JP2018127732A (ja) 2018-08-16
CN110291239A (zh) 2019-09-27
EP3581690A4 (en) 2020-02-26
US20200032433A1 (en) 2020-01-30
EP3581690A1 (en) 2019-12-18
JP6620771B2 (ja) 2019-12-18

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