WO2013015087A1 - Feuille de fibres de renfort, composite renforcé par des fibres, procédé pour produire une feuille de fibres de renfort, et procédé pour produire un composite renforcé par des fibres - Google Patents

Feuille de fibres de renfort, composite renforcé par des fibres, procédé pour produire une feuille de fibres de renfort, et procédé pour produire un composite renforcé par des fibres Download PDF

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Publication number
WO2013015087A1
WO2013015087A1 PCT/JP2012/067112 JP2012067112W WO2013015087A1 WO 2013015087 A1 WO2013015087 A1 WO 2013015087A1 JP 2012067112 W JP2012067112 W JP 2012067112W WO 2013015087 A1 WO2013015087 A1 WO 2013015087A1
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WO
WIPO (PCT)
Prior art keywords
reinforcing fiber
fiber bundle
sheet
reinforcing
heating roller
Prior art date
Application number
PCT/JP2012/067112
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English (en)
Japanese (ja)
Inventor
堀　藤夫
Original Assignee
株式会社 豊田自動織機
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Publication date
Application filed by 株式会社 豊田自動織機 filed Critical 株式会社 豊田自動織機
Publication of WO2013015087A1 publication Critical patent/WO2013015087A1/fr

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    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/737—Articles provided with holes, e.g. grids, sieves

Definitions

  • the present invention relates to a reinforcing fiber sheet for resin reinforcement, a fiber-reinforced composite material, a method for manufacturing a reinforcing fiber sheet, and a method for manufacturing a fiber-reinforced composite material.
  • Fabrication of a fiber reinforced composite material involves the use of a prepreg produced in a sheet form by impregnating a reinforcing fiber substrate with a semi-cured thermosetting resin in advance, or a prepreg produced by laminating reinforcing fiber substrates.
  • a method using reform is known.
  • the method using prepreg has an advantage that a fiber-reinforced composite material can be produced without adding a new matrix because it is impregnated with a thermosetting resin in advance.
  • the prepreg has a problem that the storage method and the expiration date are limited and the management is complicated.
  • the method using a preform has an advantage that it can be used relatively easily because there is no need to use a large apparatus.
  • Patent Document 1 describes that a reinforcing fiber sheet is formed as follows. That is, after laminating a plurality of sheet-like materials each having the reinforcing fibers aligned in one direction so that the directions of the reinforcing fibers are different from each other, these sheet-like materials are fixed by at least two resin-permeable base fabrics. .
  • the resin-permeable base fabric is a mesh-like product in which fibers are coated with a resin that melts by heating.
  • the sheet-like material is affixed and fixed to a resin-permeable base fabric with a resin melted by heating.
  • an object of the present invention is to provide a reinforced fiber sheet and a fiber reinforced composite material excellent in strength quality.
  • a porous sheet made of an interlayer reinforcing material, a heat-sealing material attached to at least one surface of the porous sheet,
  • a reinforcing fiber sheet including a reinforcing fiber bundle bonded to the one surface with the heat-sealing material.
  • the reinforcing fiber bundle has a direction changing portion in which the reinforcing fiber bundle is bent or curved.
  • the porous sheet is used because the matrix resin is not impregnated into the reinforcing fiber sheet when a sheet without holes is used.
  • the presence of the direction changing portion makes it possible to reduce the number of cut portions of the reinforcing fiber bundle and make the reinforcing fiber sheet excellent in strength quality.
  • the interlayer reinforcing material means that the interlayer of the fiber reinforced composite material is toughened to improve impact resistance.
  • the porous sheet is a woven fabric.
  • the weave of the woven fabric is preferable as a hole through which the matrix resin penetrates.
  • the fabric is a plain fabric.
  • Plain fabric is preferable for reducing the thickness of the reinforcing fiber sheet.
  • the yarn of the fabric is covered with the heat sealing material.
  • the yarn covered with the heat-sealing material is a simple material for attaching the reinforcing fiber bundle to the fabric.
  • the interlayer reinforcing material is a thermoplastic resin.
  • the reinforcing fiber bundle further has a linear portion extending linearly.
  • the direction changing portion of the reinforcing fiber bundle extends in a semicircular arc shape, and the linear portion extends from each of the pair of end portions of the direction changing portion.
  • a step of preparing a porous sheet made of an interlayer reinforcing material having a heat-sealing material attached to at least one surface, and a reinforcing fiber bundle on the one surface of the porous sheet comprising a step of heating and pressing with a heating roller and bonding.
  • the step of bonding the reinforcing fiber bundle includes bending or bending the reinforcing fiber bundle while changing the direction of the heating roller and bonding the reinforcing fiber bundle to the one surface of the porous sheet.
  • the heating roller is heated to a temperature below the melting point of the interlayer reinforcing material and above the melting point of the heat sealing material.
  • a fiber-reinforced composite material obtained by impregnating a matrix resin into a laminate formed by laminating a plurality of reinforcing fiber sheets including at least the reinforcing fiber sheet of the first aspect.
  • a step of preparing a porous sheet made of an interlayer reinforcing material having a heat-sealing material attached to at least one surface, and a reinforcing fiber bundle on the one surface of the porous sheet Laminating and laminating a plurality of reinforcing fiber sheets including at least a reinforcing fiber sheet obtained by adhering the reinforcing fiber bundle to the one surface of the porous sheet by heating and pressing with a heating roller
  • the step of bonding the reinforcing fiber bundle includes bending or bending the reinforcing fiber bundle while changing the direction of the heating roller and bonding the reinforcing fiber bundle to the one surface of the porous sheet.
  • the reinforced fiber sheet and the fiber reinforced composite material of the present invention have an effect of excellent strength quality.
  • (A) is a perspective view of the fiber reinforced composite material of the 1st Embodiment of this invention.
  • (B) is a schematic perspective view of the laminated body of 1st Embodiment.
  • (C) is a perspective view of a plurality of reinforcing fiber sheets of the first embodiment. Sectional drawing of the plain fabric of 1st Embodiment.
  • the schematic diagram of the supply apparatus of 1st Embodiment. The top view explaining the direction change of the heating roller of 1st Embodiment.
  • the fiber-reinforced composite material 10 is formed in a band shape.
  • a hole 101 is formed through one end of the belt-shaped fiber-reinforced composite material 10 in the length direction.
  • a semicircular arc edge 102 is formed around the hole 101.
  • the fiber reinforced composite material 10 is configured by impregnating a laminated body 11 shown in FIG. 1B with a thermosetting resin (for example, epoxy resin).
  • the laminate 11 is configured by laminating a plurality of reinforcing fiber sheets 12A, 12B, 12C, 12D, and 12E shown in FIG.
  • the belt-shaped reinforcing fiber sheet 12A includes a woven fabric 13A that is a porous sheet and a reinforcing fiber bundle 14A that is aligned in the length direction of the reinforcing fiber sheet 12A. .
  • the reinforcing fiber bundle 14A is affixed to an adhesive surface 131 that is one surface of the fabric 13A.
  • the belt-shaped reinforcing fiber sheet 12B is composed of a woven fabric 13B and reinforcing fiber bundles 14B that are aligned in a direction obliquely intersecting with the length direction of the reinforcing fiber sheet 12B at an angle of 135 °.
  • the reinforcing fiber bundle 14B is affixed to the adhesive surface 131 that is one surface of the fabric 13B.
  • the belt-shaped reinforcing fiber sheet 12C is composed of a woven fabric 13C and reinforcing fiber bundles 14C that are aligned in a direction obliquely crossed at an angle of 45 ° with respect to the length direction of the reinforcing fiber sheet 12C.
  • the reinforcing fiber bundle 14C is affixed to the adhesive surface 131 that is one surface of the fabric 13C.
  • the belt-shaped reinforcing fiber sheet 12D is composed of a woven fabric 13D and a reinforcing fiber bundle 14D aligned in the width direction of the reinforcing fiber sheet 12B.
  • the reinforcing fiber bundle 14D is affixed to the adhesive surface 131 that is one surface of the fabric 13D.
  • Each of the pair of belt-shaped reinforcing fiber sheets 12E is composed of a woven fabric 13E and a reinforcing fiber bundle 14E attached to an adhesive surface 131 which is one surface of the woven fabric 13E.
  • the reinforcing fiber bundle 14E includes a first array portion 141 in which the reinforcing fiber bundle 14E is aligned in the length direction of the reinforcing fiber sheet 12E, and the reinforcing fiber bundle 14E is aligned in the length direction of the reinforcing fiber sheet 12E. Later, the second array portion 142 is formed by reversing while drawing a semicircle and being aligned again in the length direction of the reinforcing fiber sheet 12E.
  • the direction of the fibers is changed in a continuous state in the semicircular arc-shaped direction changing portion Ho (see FIG. 4).
  • An empty region Q without the reinforcing fiber bundle 14E is formed between the direction changing portion Ho of the second array portion 142 and one end portion of the first array portion 141.
  • the straight portions 143 and 144 of the second array portion 142 extend linearly from each of the pair of end portions of the direction changing portion Ho.
  • the fabrics 13A, 13B, 13C, 13D, and 13E are plain fabrics, and the warps T and the wefts Y of the fabrics 13A, 13B, 13C, 13D, and 13E have low melting points on the surface of the core yarn 15, respectively.
  • This is a fused yarn having the coating film 16. That is, the fabrics 13A, 13B, 13C, 13D, and 13E are formed from yarns covered with a heat-sealing material. Therefore, it can be said that the heat-sealing material has adhered to both surfaces of the fabrics 13A, 13B, 13C, 13D, and 13E.
  • the core yarn 15 is made of a thermoplastic resin
  • the coating film 16 is made of another thermoplastic resin.
  • thermoplastic resin of the coating 16 a resin having a melting point T1 lower than the melting point T2 of the thermoplastic resin of the core yarn 15 is used.
  • thermoplastic resin for the coating 16 include copolymer nylon, modified polyester, and vinylon.
  • thermoplastic resin of the core yarn 15 include nylon 6 or nylon 66. Polyester may be used instead of nylon.
  • the reinforcing fiber bundles 14A, 14B, 14C, 14D, and 14E are bonded to the fabrics 13A, 13B, 13C, 13D, and 13E by the coating film 16 melted by heating.
  • the reinforcing fiber bundles 14A, 14B, 14C, 14D, and 14E are attached to the fabrics 13A, 13B, 13C, 13D, and 13E by the reinforcing fiber sheet manufacturing apparatus 17 shown in FIG.
  • the reinforcing fiber sheet manufacturing apparatus 17 includes a holding table 18 and a supply device 19 disposed above the holding table 18.
  • a box-shaped head frame 20 constituting the supply device 19 is rotatably supported by a rotation device 22 via a rotation shaft 21.
  • the rotating device 22 can rotate the head frame 20 about the rotating shaft 21.
  • the rotating device 22 is supported by a moving mechanism (not shown) so as to be movable in the left-right direction that coincides with the left-right direction in FIG. 3 and in the front-rear direction that coincides with the direction perpendicular to the paper surface in FIG.
  • the rotating device 22 can be moved up and down by a lifting mechanism (not shown).
  • a bobbin 23 around which the reinforcing fiber bundle 14 is wound, a pair of supply rollers 24 and 25, a tension applying roller 26, a guide roller 27, a pair of delivery rollers 28 and 29, a cutter 30 and a heating roller 31.
  • the reinforcing fiber bundle 14 wound around the bobbin 23 is passed between the pair of supply rollers 24 and 25 and passed between the pair of delivery rollers 28 and 29 while contacting the tension applying roller 26 and the guide roller 27.
  • the supply roller 25 is urged toward the supply roller 24 by the spring force of the compression spring 32.
  • the tension applying roller 26 applies a constant tension to the reinforcing fiber bundle 14 by the spring force of the tension spring 33.
  • the cutter 30 is advanced to a position indicated by a virtual line in FIG. 3 at an appropriate timing by a driving device (not shown).
  • a driving device not shown
  • the reinforcing fiber bundle 14 is cut between the feed rollers 28 and 29 and the heating roller 31.
  • the reinforcing fiber bundle 14 passed between the delivery rollers 28 and 29 is guided between the heating roller 31 and a guide 34 disposed at a position facing the heating roller 31.
  • the surface temperature of the heating roller 31 is raised by a heater (not shown) provided inside the heating roller 31.
  • the heating roller 31 is urged toward the holding table 18 by an urging means (not shown).
  • the heating roller 31 is heated to a temperature not higher than the melting point T2 of the core yarn 15 (interlayer reinforcing material) and not lower than the melting point T1 of the heat sealing material.
  • the fabric 13 ⁇ / b> E is placed on the placement surface 181 of the holding table 18 so as not to move. The above is first performed as a preparation process.
  • the start end of the reinforcing fiber bundle 14 passed between the heating roller 31 and the guide 34 is guided directly above the right end of the fabric 13E by moving the head frame 20. Thereafter, the head frame 20 is moved downward, and the starting end portion of the reinforcing fiber bundle 14 is sandwiched between the heating roller 31 and the fabric 13E.
  • the heating roller 31 presses the starting end portion of the reinforcing fiber bundle 14 onto the right end of the fabric 13E by the urging means described above. Further, the heating roller 31 melts the film 16 of the fused yarn of the fabric 13E by the heating of the heater. Thereby, the start end part of the reinforcing fiber bundle 14 is bonded to the fabric 13E.
  • the heating roller 31 rolls on the fabric 13E while pressing the reinforcing fiber bundle 14 onto the fabric 13E.
  • the reinforcing fiber bundle 14 is pulled out from the bobbin 23 by the rolling of the heating roller 31, and the reinforcing fiber bundle 14 passed between the heating roller 31 and the guide 34 is linearly arranged on the fabric 13E.
  • the heating roller 31 is moved on the fabric 13E along a path indicated by a chain line S1 in FIG.
  • the arrow on the chain line S ⁇ b> 1 represents the rolling direction of the heating roller 31.
  • the cutter 30 is operated, and the reinforcing fiber bundle 14 is moved to the heating roller 31, the guide 34, and the like. Is cut between.
  • the head frame 20 is moved upward and the heating roller 31 is separated from the upper surface of the fabric 13E.
  • the rotating device is actuated to rotate the head frame 20 by 90 ° about the rotating shaft 21. After this rotation, the head frame 20 is moved by the width of the reinforcing fiber bundle 14 in the width direction of the fabric 13E. Thereafter, the rotating device is actuated again, and the head frame 20 is rotated 90 ° about the rotating shaft 21. After this rotation, the head frame 20 is moved down and the heating roller 31 is pressed against the upper surface of the fabric 13E. Thereafter, the head frame 20 is moved in the length direction of the fabric 13E, whereby the reinforcing fiber bundles 14 are linearly arranged in the length direction of the fabric 13E.
  • the first array portion 141 in which the reinforcing fiber bundles 14 are linearly arranged is formed.
  • the reinforcing fiber bundle 14 forming the first array portion 141 is bonded to the upper surface of the fabric 13E by heating from the heating roller 31.
  • the heating roller 31 is moved on the fabric 13E along a path indicated by a chain line S2 in FIG.
  • the arrow on the chain line S2 represents the rolling direction of the heating roller 31.
  • the heating roller 31 linearly moved in the length direction of the fabric 13E reaches the straight end of the path indicated by the chain line S2 (as an example, the position indicated by S21 in FIG. 4)
  • the head frame 20 moves in an arc. Controlled to draw.
  • the heating roller 31 rolls on the fabric 13E while changing its direction as indicated by a chain line S2, and the reinforcing fiber bundle 14 is arranged in a semicircular arc shape.
  • the head frame 20 is moved in the length direction of the fabric 13E, whereby the reinforcing fiber bundles 14 are linearly arranged in the length direction of the fabric 13E.
  • the heating roller 31 By operating the heating roller 31 in this way, the second array part 142 having the semicircular arc direction changing part Ho is formed.
  • the reinforcing fiber bundle 14 forming the second array portion 142 is bonded to the upper surface of the fabric 13E by heating from the heating roller 31.
  • An empty region Q without the reinforcing fiber bundle 14 is formed between the tip of the first array portion 141 bonded to the fabric 13E and the direction change portion Ho of the second array portion 142 bonded to the fabric 13E. Is done.
  • the step of bonding the reinforcing fiber bundle 14 to the bonding surface 131 of the fabric 13E by heating and pressing with the heating roller 31 is performed. Accordingly, the step of bonding the reinforcing fiber bundle 14 includes bending or bending the reinforcing fiber bundle 14 while changing the direction of the heating roller 31 and bonding the reinforcing fiber bundle 14 to the bonding surface 131 of the fabric 13E.
  • the heating roller 31 is rolled on the fabrics 13A, 13B, 13C, and 13D to transfer the reinforcing fiber bundles 14A, 14B, 14C, and 14D to the fabrics 13A, 13B, and 13C. , 13D.
  • the portions of the fabric 13E corresponding to the surroundings of the empty region Q and the direction change portion Ho are cut and removed.
  • the same portions of the fabrics 13A, 13B, 13C, and 13D are cut and removed.
  • the reinforcing fiber sheets 12A, 12B, 12C, 12D, and 12E from which the portions of the fabrics 13A, 13B, 13C, 13D, and 13E are cut and removed are stacked on each other in a mold (not shown). This corresponds to the step of laminating a plurality of reinforcing fiber sheets 12A, 12B, 12C, 12D, and 12E to form the laminate 11.
  • the mold is filled with a matrix resin (the thermosetting resin described above). This corresponds to the step of impregnating the laminate 11 with a matrix resin.
  • the force for receiving the load is the adhesive strength between the reinforcing fiber bundle and the thermosetting resin. Will depend.
  • the force for receiving the load due to the adhesion between the reinforcing fiber bundle and the thermosetting resin is smaller than the force for receiving the load by the second array portion 142.
  • the reinforcing fiber sheet 12E having the second array portion 142 as a fiber reinforced composite material contributes to reducing the weight of the fiber reinforced composite material by reducing the number of laminated reinforcing fiber sheets.
  • the fabrics 13A, 13B, 13C, 13D, and 13E function as interlayer reinforcing materials that suppress the extension of cracks between the layers. This contributes to weight reduction of the fiber-reinforced composite material by reducing the number of laminated reinforcing fiber sheets.
  • a part of the reinforcing fiber sheet 12E around the hole 101 is formed by the direction changing portion Ho. Therefore, the number of cut portions of the reinforcing fiber bundle 14E of the reinforcing fiber sheet 12E is less than that of the reinforcing fiber sheet without the direction change portion Ho. Therefore, the presence of the direction changing portion Ho makes it possible to make the reinforcing fiber sheet 12E excellent in strength quality.
  • the woven fabrics 13A, 13B, 13C, 13D, and 13E have pores, they are suitable as interlayer reinforcing materials that improve the impact resistance by increasing the toughness between the layers of the fiber reinforced composite material 10.
  • the binder resin is cured in a state where it penetrates into the weaves of the fabrics 13A, 13B, 13C, 13D, and 13E. Therefore, the expansion of cracks generated in the resin is effectively suppressed by the fabrics 13A, 13B, 13C, 13D, and 13E. That is, the weaves of the fabrics 13A, 13B, 13C, 13D, and 13E are preferable as the holes through which the resin penetrates, and are important for suppressing the expansion of cracks.
  • a plain fabric is a fabric that can have the smallest thickness among the fabrics if the yarn diameter is the same. Therefore, it is preferable that the fabrics 13A, 13B, 13C, 13D, and 13E are plain fabrics in order to reduce the thickness of the laminate 11 by reducing the thickness of the reinforcing fiber sheets 12A, 12B, 12C, 12D, and 12E.
  • the fusion yarns (warp yarn T and weft yarn Y) constituting the woven fabrics 13A, 13B, 13C, 13D, and 13E are heated while being pressed to form reinforcing fiber bundles into the woven fabrics 13A, 13B, 13C, 13D, and 13E. It is a simple material for pasting.
  • the head frame 20 is provided with a cooling nozzle 35.
  • the cooling nozzle 35 is connected to a cooling device (not shown).
  • the cooling nozzle 35 is disposed on the rear side in the moving direction of the head frame 20 with respect to the heating roller 31.
  • the cold air injection port 351 of the cooling nozzle 35 is disposed so as to be directed between the heating roller 31 and the holding base 18.
  • the coating film 16 melted by heating is cooled by cold air sprayed from the cooling nozzle 35 immediately after the reinforcing fiber bundle is pressurized and heated. Therefore, the solidification of the coating film 16 (heat-bonding material) proceeds promptly as the viscosity decreases early. Therefore, the shape retention effect of the reinforcing fiber bundle can be obtained early.
  • a porous sheet to which a heat-sealable material powder is adhered may be used.
  • a porous film may be used instead of a woven fabric as the porous sheet.
  • the laminated body may be composed only of reinforcing fiber sheets having a direction changing portion.
  • the direction changing portion of the reinforcing fiber bundle may be bent at an acute angle, a right angle or an obtuse angle.
  • 10 Fiber reinforced composite material. 11 ... Laminated body. 12A, 12B, 12C, 12D, 12E ... reinforcing fiber sheet. 13A, 13B, 13C, 13D, 13E ... Woven fabric as a porous sheet. 131: Adhesive surface that is one surface of the fabric. 14, 14A, 14B, 14C, 14D, 14E ... reinforcing fiber bundles. 141: First arrangement portion. 143, 144... Linear portion of the second array portion. 16: A film as a heat sealing material. 31 ... Heating roller. T ... Warp. Y ... Weft. Ho ... Direction change part.

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  • Laminated Bodies (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Reinforced Plastic Materials (AREA)

Abstract

L'invention porte sur une feuille de fibres de renfort (12E), laquelle feuille comporte une feuille poreuse (13E). Un matériau de thermoscellage (16) est fixé à au moins une surface (131) de la feuille poreuse (13E). Un faisceau de fibres de renfort (14) est lié par le matériau de thermoscellage (16) à la première surface (131) de la feuille poreuse (13E). Le faisceau de fibres de renfort (14) a une section de changement de direction (Ho) dans laquelle le faisceau de fibres de renfort (14) est courbé ou incurvé.
PCT/JP2012/067112 2011-07-26 2012-07-04 Feuille de fibres de renfort, composite renforcé par des fibres, procédé pour produire une feuille de fibres de renfort, et procédé pour produire un composite renforcé par des fibres WO2013015087A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011-163250 2011-07-26
JP2011163250A JP5614384B2 (ja) 2011-07-26 2011-07-26 強化繊維シート、繊維強化複合材、及び強化繊維シートの製造方法、並びに繊維強化複合材の製造方法

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Publication Number Publication Date
WO2013015087A1 true WO2013015087A1 (fr) 2013-01-31

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JP (1) JP5614384B2 (fr)
TW (1) TW201313464A (fr)
WO (1) WO2013015087A1 (fr)

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CN112677511A (zh) * 2019-10-17 2021-04-20 三菱重工业株式会社 带强化纤维束的复合材料以及螺栓联接构造体

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KR101926370B1 (ko) * 2016-09-09 2018-12-07 한국과학기술원 광섬유 프리프레그 시트의 제조 방법

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Publication number Priority date Publication date Assignee Title
CN112677511A (zh) * 2019-10-17 2021-04-20 三菱重工业株式会社 带强化纤维束的复合材料以及螺栓联接构造体
EP3808548A1 (fr) * 2019-10-17 2021-04-21 Mitsubishi Heavy Industries, Ltd. Un matériau composite et structure fixée par boulon

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