WO2017170685A1 - 強化繊維積層シートおよび繊維強化樹脂成形体ならびに強化繊維積層シートの製造方法 - Google Patents
強化繊維積層シートおよび繊維強化樹脂成形体ならびに強化繊維積層シートの製造方法 Download PDFInfo
- Publication number
- WO2017170685A1 WO2017170685A1 PCT/JP2017/012881 JP2017012881W WO2017170685A1 WO 2017170685 A1 WO2017170685 A1 WO 2017170685A1 JP 2017012881 W JP2017012881 W JP 2017012881W WO 2017170685 A1 WO2017170685 A1 WO 2017170685A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- reinforcing fiber
- fixing
- fiber bundle
- bundle layer
- reinforcing
- Prior art date
Links
- 239000000835 fiber Substances 0.000 title claims abstract description 157
- 229920005989 resin Polymers 0.000 title claims abstract description 90
- 239000011347 resin Substances 0.000 title claims abstract description 90
- 238000000034 method Methods 0.000 title claims abstract description 61
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 50
- 239000012783 reinforcing fiber Substances 0.000 claims description 543
- 239000000463 material Substances 0.000 claims description 82
- 238000004873 anchoring Methods 0.000 claims description 26
- 238000003475 lamination Methods 0.000 claims description 22
- 230000007246 mechanism Effects 0.000 claims description 22
- 239000011159 matrix material Substances 0.000 claims description 21
- 230000008569 process Effects 0.000 claims description 12
- 238000002844 melting Methods 0.000 claims description 9
- 230000008018 melting Effects 0.000 claims description 9
- 230000001747 exhibiting effect Effects 0.000 abstract description 2
- 230000002349 favourable effect Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 192
- 230000037303 wrinkles Effects 0.000 description 65
- 238000011156 evaluation Methods 0.000 description 35
- 238000007493 shaping process Methods 0.000 description 25
- 238000000465 moulding Methods 0.000 description 19
- 238000009727 automated fiber placement Methods 0.000 description 14
- -1 polyethylene terephthalate Polymers 0.000 description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 9
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 9
- 229910052802 copper Inorganic materials 0.000 description 9
- 239000010949 copper Substances 0.000 description 9
- 230000000452 restraining effect Effects 0.000 description 9
- 239000000758 substrate Substances 0.000 description 9
- 230000007547 defect Effects 0.000 description 8
- 229920000049 Carbon (fiber) Polymers 0.000 description 7
- 239000004917 carbon fiber Substances 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 7
- 239000011151 fibre-reinforced plastic Substances 0.000 description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000003822 epoxy resin Substances 0.000 description 5
- 239000004744 fabric Substances 0.000 description 5
- 229920000647 polyepoxide Polymers 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 239000000155 melt Substances 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- 229920005992 thermoplastic resin Polymers 0.000 description 4
- 239000002759 woven fabric Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000011229 interlayer Substances 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 2
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 229920006231 aramid fiber Polymers 0.000 description 2
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 2
- 239000004918 carbon fiber reinforced polymer Substances 0.000 description 2
- 238000012790 confirmation Methods 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 229920002239 polyacrylonitrile Polymers 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 238000009941 weaving Methods 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 229920000106 Liquid crystal polymer Polymers 0.000 description 1
- 239000004977 Liquid-crystal polymers (LCPs) Substances 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- 229930040373 Paraformaldehyde Natural products 0.000 description 1
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- 239000004962 Polyamide-imide Substances 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- 239000004695 Polyether sulfone Substances 0.000 description 1
- 239000004697 Polyetherimide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000004734 Polyphenylene sulfide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 229920001807 Urea-formaldehyde Polymers 0.000 description 1
- 229910052769 Ytterbium Inorganic materials 0.000 description 1
- 150000008065 acid anhydrides Chemical class 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000002591 computed tomography Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 238000009940 knitting Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002557 mineral fiber Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000877 morphologic effect Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 229920006287 phenoxy resin Polymers 0.000 description 1
- 239000013034 phenoxy resin Substances 0.000 description 1
- 229920001643 poly(ether ketone) Polymers 0.000 description 1
- 229920001652 poly(etherketoneketone) Polymers 0.000 description 1
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920002312 polyamide-imide Polymers 0.000 description 1
- 229920001230 polyarylate Polymers 0.000 description 1
- 229920000412 polyarylene Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920001748 polybutylene Polymers 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 229920006393 polyether sulfone Polymers 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 229920001601 polyetherimide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000011112 polyethylene naphthalate Substances 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 229920001470 polyketone Polymers 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920001955 polyphenylene ether Polymers 0.000 description 1
- 229920000069 polyphenylene sulfide Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920002215 polytrimethylene terephthalate Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 238000001721 transfer moulding Methods 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- NAWDYIZEMPQZHO-UHFFFAOYSA-N ytterbium Chemical compound [Yb] NAWDYIZEMPQZHO-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
- B29C70/06—Fibrous reinforcements only
- B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
- B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
- B29C70/22—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in at least two directions forming a two dimensional structure
- B29C70/228—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in at least two directions forming a two dimensional structure the structure being stacked in parallel layers with fibres of adjacent layers crossing at substantial angles
-
- 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
- B29C70/382—Automated fiber placement [AFP]
-
- 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
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/02—Layered products essentially comprising sheet glass, or glass, slag, or like fibres in the form of fibres or filaments
- B32B17/04—Layered products essentially comprising sheet glass, or glass, slag, or like fibres in the form of fibres or filaments bonded with or embedded in a plastic substance
-
- 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
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/067—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of fibres or filaments
-
- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- 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
- B32B5/08—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 the fibres or filaments of a layer being of different substances, e.g. conjugate fibres, mixture of different 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
- 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
- B32B5/12—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 the relative arrangement of fibres or filaments of different layers, e.g. the fibres or filaments being parallel or perpendicular to each other
-
- 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
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
-
- 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
- B32B2250/00—Layers arrangement
- B32B2250/02—2 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
- B32B2250/00—Layers arrangement
- B32B2250/20—All layers 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
- B32B2255/00—Coating on the layer surface
- B32B2255/02—Coating on the layer surface on fibrous or filamentary layer
-
- 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
- B32B2255/00—Coating on the layer surface
- B32B2255/20—Inorganic coating
- B32B2255/205—Metallic coating
-
- 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
- B32B2255/00—Coating on the layer surface
- B32B2255/26—Polymeric coating
-
- 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
-
- 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
- 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
-
- 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
- B32B2262/103—Metal 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
- B32B2262/14—Mixture of at least two fibres made of different materials
-
- 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
- B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
- B32B2264/02—Synthetic macromolecular particles
- B32B2264/0214—Particles made of materials belonging to B32B27/00
- B32B2264/0264—Polyamide particles
- B32B2264/0271—Aromatic polyamide particles
-
- 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
- B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
- B32B2264/10—Inorganic particles
- B32B2264/101—Glass
-
- 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
- B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
- B32B2264/10—Inorganic particles
- B32B2264/107—Ceramic
- B32B2264/108—Carbon, e.g. graphite particles
-
- 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
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/08—Reinforcements
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/306—Resistant to heat
- B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
-
- 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
- B32B2309/00—Parameters for the laminating or treatment process; Apparatus details
- B32B2309/02—Temperature
-
- 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
- B32B2309/00—Parameters for the laminating or treatment process; Apparatus details
- B32B2309/12—Pressure
-
- 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
- B32B2535/00—Medical equipment, e.g. bandage, prostheses, catheter
-
- 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
- B32B2603/00—Vanes, blades, propellers, rotors with blades
-
- 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
- B32B2605/00—Vehicles
- B32B2605/003—Interior finishings
-
- 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
- B32B2605/00—Vehicles
- B32B2605/18—Aircraft
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2363/00—Characterised by the use of epoxy resins; Derivatives of epoxy resins
Definitions
- the present invention relates to a reinforced fiber laminated sheet, a fiber reinforced resin molded article composed of the reinforced fiber laminated sheet and a matrix resin, and a method for producing the reinforced fiber laminated sheet.
- Fiber Reinforced Plastic among which carbon fiber reinforced resin (Carbon Fiber Reinforced Plastic: CFRP) using carbon fiber is lightweight and excellent in mechanical properties such as strength and rigidity. Therefore, taking advantage of the characteristics, in recent years, it has been applied to transportation equipment such as aerospace, space, automobiles, sports use, industrial use, and the like.
- an autoclave molding method As a typical manufacturing method of FRP, an autoclave molding method, a resin transfer molding (RTM) method, and a vacuum injection molding (VaRTM) method are known.
- RTM resin transfer molding
- VaRTM vacuum injection molding
- an autoclave molding method using a prepreg has been used for molding an aircraft member that particularly requires high reliability and quality.
- a prepreg impregnated with a matrix resin in advance in a group of reinforcing fiber bundles arranged in one direction is laminated on a mold, covered with a bag material as necessary, heated and pressurized in an autoclave, A molded body made of FRP is obtained.
- an automatic tape layup (ATL) apparatus for laminating prepregs slit in a narrow width has recently been used.
- ATL automatic tape layup
- a woven base material in which reinforcing fiber bundles are woven in the form of plain weave or twill weave, or reinforcing fiber bundles that are aligned in parallel are stitched using auxiliary yarns.
- Non-crimp substrates that have been engaged and retained in a form such as ringing have been used. All of these substrates are prefabricated and integrated by constraining adjacent reinforcing fiber bundles in the fabric surface, and have a continuous form in the longitudinal direction with a constant width and basis weight. It can be said that it is a fiber base material. Therefore, in such a base material, the reinforcing fibers are not strongly restrained by the matrix resin. Therefore, even curved shapes, uneven shapes, and complex three-dimensional shapes can be easily deformed to a desired shape compared to prepregs, and wrinkles that adversely affect mechanical properties when properly shaped. It can be suppressed.
- the AFP (Automated Fiber Placement) method has also been produced in which the reinforcing fibers are sequentially arranged in the necessary lengths only at the necessary locations to obtain the reinforcing fiber bases in the RTM molding method and the VaRTM molding method. It has attracted attention as a technology that has high properties and can significantly reduce the amount of discarded reinforcing fibers.
- a single reinforcing fiber bundle layer is formed by aligning dry reinforcing fiber bundles in one direction and in a flat shape, and the adjacent reinforcing fiber bundles are constrained, or a plurality of layers are laminated.
- a sheet form is formed by constraining the layers.
- Patent Document 1 a plurality of reinforcing fiber bundles are arranged in one direction at predetermined positions on a sheet-like base substrate, and the reinforcing fiber bundles are randomly bonded onto the base substrate to form a sheet form.
- Technology is disclosed.
- the reinforcing fiber sheet produced by such a technique can be integrated as a reinforcing fiber sheet by bonding the reinforcing fiber bundle to the base substrate.
- Patent Document 2 a fixing material made of a thermoplastic resin material between a unidirectional reinforcing fiber layer and this layer and another unidirectional reinforcing fiber layer having a different fiber orientation.
- a reinforced fiber base material in which these are arranged and heat-sealed.
- Patent Document 2 or 3 is an effective technique for laminating a woven fabric base material in which adjacent reinforcing fiber bundles are constrained by seam threads or auxiliary threads.
- the reinforcing fiber sheet produced by the method disclosed in Patent Document 1 is not suitable for a three-dimensional shape having a complicated and large curved surface, although the base substrate has slits.
- the properties were relatively low, and it was not possible to achieve sufficient shaping without causing wrinkles or twisting of the reinforcing fibers.
- Another problem is that an unnecessary base substrate must be used depending on the molded product.
- the reinforcing fiber bundles arranged by the AFP method and not directly restrained with each other cannot be integrated and formed as a sheet. These are only partially bonded between the sheets of which adjacent fibers are constrained by the weaving structure, and are “adjacent to each other with different lengths”, which is peculiar to sheets obtained by the AFP method. It does not show any means for fixing the “reinforcing reinforcing fibers” to each other. That is, it is peculiar when restraining the reinforcing fiber bundle layers obtained by the AFP method, and restrains between the unconstrained reinforcing fiber bundles with an appropriate fixing force so as not to disturb the fiber orientation and to prevent wrinkles and twisting of the reinforcing fibers. As for the problem for shaping without generating, no means for solving was disclosed, and it was not possible to obtain a reinforced fiber laminated sheet having sufficient shaping properties even with reference to these patent documents .
- the unconstrained reinforcing fiber bundle is constrained with an appropriate fixing force without using another base material such as a base base material, and the fiber orientation is not disturbed and wrinkles and twisting of the reinforcing fiber are generated.
- a reinforcing fiber laminated sheet having sufficient formability that can be formed without being formed has not been obtained so far.
- the reinforcing fiber bundle is easily displaced or peeled off, so that the form as a reinforcing fiber laminated sheet can be maintained. There wasn't. As a result, the reinforcing fiber sheet could not be conveyed to the subsequent process, or when it was formed, wrinkles, twisting, peeling, etc. occurred, and it could not be used as a reinforcing fiber sheet at all. Naturally, even if such a reinforcing fiber sheet is molded by the RTM method, the resulting molded body has wrinkles of the reinforcing fiber layer left, and the desired mechanical properties cannot be obtained. .
- the problem of the present invention is that it is possible to handle as a sheet by integrating adjacent reinforcing fiber bundles that are not directly restrained, and is shaped
- An object of the present invention is to provide a reinforcing fiber laminated sheet that can be deformed along the shape of the mold while sometimes maintaining the form as a sheet, and a method for producing the reinforcing fiber laminated sheet.
- Another object of the present invention is to provide a fiber-reinforced resin molded article having excellent moldability without using defects such as wrinkles generated during shaping by using the above-mentioned reinforcing fiber laminated sheet.
- the “adhering element” refers to an element involved in adhering among the adhering materials existing between the reinforcing fiber bundle layers.
- the present invention has the following configuration in order to solve the above-described problems. That is, (1)
- the first and second reinforcing fiber bundle layers which are composed of a plurality of reinforcing fiber bundles arranged in one direction and have no direct binding force between the reinforcing fiber bundles in the same layer, are fiber-oriented with each other. Are arranged differently, and the first and second reinforcing fiber bundle layers are integrated with each other by fixing the layers of the first and second reinforcing fiber bundle layers with fixing elements.
- a reinforced fiber laminate sheet that satisfies the following conditions (i) and (ii).
- the fixing surface of the first and second reinforcing fiber bundle layers has a fixing portion including at least one fixing element, and the average area S 1 of the fixing portion is 100 mm 2 or less (ii) In the fixing portion, the area ratio of the fixing element to the fixing portion is 0.1% or more and 80% or less. (2) A plurality of reinforcing fiber bundles arranged in one direction are arranged in the same layer.
- First and second reinforcing fiber bundle layers having no direct binding force between the reinforcing fiber bundles are arranged so that the fiber orientations are different from each other, and the first and second reinforcing fiber bundle layers It is a reinforcing fiber laminated sheet in which the first and second reinforcing fiber bundle layers are integrated with each other by being fixed to each other by the fixing element, and satisfies the following conditions (i) and (iii) Reinforced fiber laminated sheet.
- the anchoring element has at least one comprising anchoring portion, the average area S 1 of the fixing portion is 100 mm 2 or less (iii) the (3) A fixing region including at least one fixing part on the fixing surface of the first and second reinforcing fiber bundle layers.
- the center of the fixed portion is arranged in a regular polygonal lattice shape having a side length L 1 (mm), and the length L 1 (mm) satisfies the following expression (1): 1 ⁇ L 1 ⁇ 50 (1) (7)
- a fiber reinforced resin molded article comprising the reinforcing fiber laminated sheet according to any one of (1) to (6) and a matrix resin.
- a method for producing a reinforcing fiber laminate sheet comprising the following steps (a) to (c).
- a first reinforcing fiber bundle layer in which a plurality of reinforcing fiber bundles are aligned in one direction on a table to obtain a first reinforcing fiber bundle layer having no direct binding force between reinforcing fiber bundles in the same layer is obtained.
- a second reinforcing fiber bundle layer arranging step (c) wherein a second reinforcing fiber bundle layer having no direct binding force between the reinforcing fiber bundles in the same layer is obtained as a reinforcing fiber laminate.
- the reinforcing fiber laminate is partially heated and / or pressurized through protrusions on the surface that comes into contact with the reinforcing fiber laminate, and between the layers of the first reinforcing fiber bundle layer and the second reinforcing fiber bundle layer.
- Reinforcing fiber laminated sheet satisfying the following conditions (i) and (ii) using a sheeting mechanism for melting the fixing material
- the obtained sheet step (i) the first, the fixing surface of the second reinforcing fiber bundle layer, the anchoring element has at least one comprising anchoring portion, the average area S 1 of the anchoring portion 100 mm 2 or less (Ii) In the fixing portion, the area ratio of the fixing element to the fixing portion is 0.1% or more and 80% or less.
- the reinforcing fiber laminate is partially heated and / or pressurized through protrusions on the surface that comes into contact with the reinforcing fiber laminate, and between the layers of the first reinforcing fiber bundle layer and the second reinforcing fiber bundle layer.
- Reinforcing fiber laminate system satisfying the following conditions (i) and (iii) using a sheeting mechanism for melting the fixing material.
- the anchoring element has at least one comprising anchoring portion, the average area S 1 of the anchoring portion 100 mm 2 It is as follows.
- the fixing element is obtained by melting a particulate or fiber aggregated fixing material.
- An adhering material is disposed on the first reinforcing fiber bundle layer, an adhering material arranging step (11), and the reinforcing fiber bundle in the step (a) and / or the step (b) is adhered to the adhering material.
- the fixing surface of the first and second reinforcing fiber bundle layers has a fixing region including at least one fixing portion, and the area ratio of the fixing region to the reinforcing fiber laminated sheet is 30% or more and 100 % Of the reinforcing fiber laminated sheet production method according to any one of the above (8) to (11).
- the reinforcing fiber laminated sheet of the present invention exhibits high formability while exhibiting the same form stability as that of a conventional woven fabric substrate.
- the reinforcing fiber laminate sheet of the present invention can be obtained.
- the fiber reinforced resin molded article of the present invention is free from defects caused by wrinkles during shaping, and has excellent moldability.
- the reinforcing fiber laminate sheet of the present invention comprises a plurality of reinforcing fiber bundles arranged in one direction, and the first and second reinforcing fiber bundles having no direct binding force between the reinforcing fiber bundles in the same layer.
- the first and second reinforcing layers are arranged so that the fiber orientations are different from each other and the layers of the first and second reinforcing fiber bundle layers are fixed to each other by fixing elements.
- the fixing surface of the first and second reinforcing fiber bundle layers has a fixing portion including at least one fixing element, and the average area S 1 of the fixing portion is 100 mm 2 or less
- the area ratio of the fixing element to the fixing part is 0.1% or more and 80% or less.
- the fixing element is obtained by melting a particle-like or fiber aggregate-like fixing material. is there.
- the fixing material refers to a resin that is attached to the reinforcing fiber bundle and softens by heating.
- the fixing element refers to an element that is involved in fixing among the fixing materials existing between the first and second reinforcing fiber bundle layers.
- the fixing elements involved in the fixing and the fixing materials not involved are determined by the following method. First, the reinforcing fiber bundle layer not provided with the fixing material is observed with a digital microscope (VHX-1000, manufactured by Keyence Corporation) for comparison.
- the two reinforcing fiber bundle layers constituting the reinforcing fiber laminated sheet are peeled off, and the fixing material adhering to the reinforcing fiber bundle layer is observed with a digital microscope (VHX-1000 manufactured by Keyence Corporation).
- the former fixing material is determined to be the fixing element by dividing the case where the traces attached to the reinforcing fiber bundle layers having different orientations are recognized and the case where it is not.
- the form in which the fixing material is applied to the fixing surface is stored, it is assumed that no trace of adhesion is recognized.
- a streak-like trace in the orientation direction of the reinforcing fiber bundle remains on the fixing material, it is assumed that the trace attached to the reinforcing fiber bundle layers having different orientations is recognized.
- the fixed portion refers to a portion determined by the following procedure. 1) When the distance between a certain fixing element and another fixing element is 1 mm or less, these fixing elements are assumed to be continuous with each other. 2) A set of fixing elements that are directly or indirectly continuous with each other is defined as a fixing element group. However, with respect to a fixed element that is not continuous with any other fixed element, the single fixed element forms one fixed element group. 3) A portion surrounded by a minimum circle including all the fixing elements belonging to one fixing element group is defined as a fixing portion. In addition, each calculated area of a circle defined as anchoring portion, the average area of all of the anchoring portion included in the reinforcing fiber sheet to S 1.
- the fixed area refers to an area defined by the following procedure. 1) When the distance between a fixed part and another fixed part is 100 mm or less, the fixed parts are assumed to be continuous with each other. 2) A set of fixed portions that are directly or indirectly continuous with each other is defined as a fixed portion group. A set of fixed parts consisting of two or less fixed parts, or a set of fixed parts consisting of two or more fixed parts, but all fixed parts aligned in a straight line shall not be a fixed part group .
- shapeability refers to the property that a reinforcing fiber laminate sheet can easily follow a three-dimensional shape mold without wrinkling of the sheet or twisting of the fiber.
- Shape stability refers to the property that the reinforcing fiber bundles are not peeled while being constrained even during shaping, and the integrity as a sheet can be maintained. Both formability and form stability are evaluated by the methods described below.
- FIG. 1 is a schematic view showing one embodiment of a reinforcing fiber laminated sheet according to the present invention.
- 1 is composed of a plurality of reinforcing fiber bundles aligned in one direction, and reinforcing fiber bundle layers 102 and 103 having no direct binding force between reinforcing fiber bundles in the same layer are mutually connected.
- It is a reinforced fiber lamination sheet arrange
- the layers of the reinforcing fiber bundle layers 102 and 103 are fixed by the fixing element 105 present in the fixing portion 104.
- FIG. 1 shows an example in which the fixing portions 104 are arranged so as to be positioned at the intersections of the square lattice, and five fixing regions 106 are provided for the rectangular reinforcing fiber laminated sheet 101. Note that the fixing material 107 that exists between the reinforcing fiber bundle layers but is not involved in fixing does not restrain the reinforcing fibers but not the fixing elements.
- the first aspect of the reinforcing fiber laminate sheet of the present invention satisfies the following conditions (i) and (ii).
- an average area S 1 of fixing portions including at least one fixing element is 100 mm 2 or less.
- the fixing The area ratio of the element to the fixed portion is 0.1% or more and 80% or less.
- the average area S 1 is 100 mm 2 or less, preferably 80 mm 2 or less, more preferably 60 mm 2 or less.
- the fixed portion is preferably 0.01 mm 2 or more, more preferably 1 mm 2 or more, which is the minimum detectable fixed element size.
- the area ratio of the fixing element to the fixing portion is preferably 0.1% or more and 80% or less, and is 0.1% or more and 50% or less. Is more preferable. By doing so, it is possible to avoid restraining all the reinforcing fiber bundles, so the distortion that occurs in the reinforcing fiber bundles during deformation of the reinforcing fiber laminate sheet can be eliminated by freely deforming the cross-sectional shape of the reinforcing fiber bundles It is possible to further improve the formability of the reinforcing fiber laminate sheet.
- the area of the fixing element refers to an area when the fixing element is projected onto the surface of the reinforcing fiber laminate sheet from a direction perpendicular to the surface.
- the area of the fixing element is obtained by peeling the reinforcing fiber bundle layer constituting the reinforcing fiber laminated sheet, photographing the fixing element attached to the reinforcing fiber with a digital microscope, and binarizing the acquired image. Can be calculated. Moreover, the area of the fixed part and the fixed region is measured by the following measuring method. That is, the reinforcing fiber bundle layers constituting the reinforcing fiber laminated sheet are peeled off from each other, and the fixing element is determined by the above-described method, and the position of the fixing element is determined. From the position of the obtained fixing element, the area of the fixing part and the fixing element is calculated based on the definition of the fixing part and the fixing region.
- the second aspect of the reinforcing fiber laminate sheet of the present invention satisfies the following conditions (i) and (iii).
- the average area S 1 of the fixing portion including at least one fixing element is 100 mm 2 or less.
- the fixing element is in the form of particles or A resin in the form of a fiber aggregate is melted.
- the reinforcing fiber bundle layers can be constrained via the fixing element which is a melted resin because the fixing element is a resin in which a particulate or fiber aggregate resin is melted. Can be handled as a sheet, and the form stability is improved.
- the fiber aggregated resin refers to an aggregate of one or more fibrous resins. That is, only one fibrous resin is included in the fiber aggregate-shaped resin. Furthermore, by using a resin having meltability, for example, the reinforcing fiber bundle can be restrained only at the fixed portion by partial heating using an indenter on the protrusion.
- the fixing element is applied, for example, when it is derived from the fixing material attached to the reinforcing fiber bundle constituting the reinforcing fiber bundle layer or after the reinforcing fiber bundle layer is formed.
- the fixing material existing between the plurality of reinforcing fiber bundle layers is heated at least at a specific position described later.
- the fixing element can be in a state where at least one fixing element is arranged in a specific form to be described later in the fixing portion.
- the reinforcing fiber laminate sheet of the present invention has an adhering region including at least one adhering portion on the adhering surface of the first and second reinforcing fiber bundle layers, and the area of the adhering region with respect to the reinforcing fiber laminated sheet.
- the ratio is preferably 30% or more and 100% or less.
- the average area S 2 of the fixing region is 10,000 mm 2 or more.
- the average area S 2 of the anchoring area by at 10000 mm 2 or more, tends to particularly improve the shape stability and handling properties of the reinforcing fiber laminated sheets.
- the reinforcing fiber laminated sheet of the present invention preferably has at least one fixing region in which the area ratio of the fixing portion to the fixing region is 1% or more and 50% or less.
- the area ratio of the fixing portion to the fixing region is more preferably 1% or more and 25% or less, and further preferably 5% or more and 20% or less.
- the area ratio of the fixing portion to the fixing region is 1% or more, the binding force between the reinforcing fiber bundles or the reinforcing fiber bundle layers is increased, and the shape stability of the reinforcing fiber laminated sheet is improved.
- the area ratio of the fixing portion to the fixing region is the ratio of the total area of the fixing portions existing inside the fixing region to the area of each fixing region. Point to.
- the reinforcing fiber laminate sheet of the present invention preferably further satisfies the following condition (iv). (Iv) having the fixing region in which the center of the fixing portion is arranged in a polygonal lattice shape, by arranging the center of the fixing portion in a polygonal lattice shape, at the time of shaping the reinforcing fiber laminated sheet, Since the orientation of the reinforcing fibers adjacent to each other is easily deformed while maintaining a uniform positional relationship, wrinkles and twists are less likely to occur, and the formability is improved.
- the fact that the center of the fixed portion is arranged in a polygonal lattice shape means that the fixed portion 204 is arranged in a lattice 208 shape as shown in FIG. 2, for example, and a square lattice (FIG. 2a).
- Regular triangular lattice FIG. 2b
- regular hexagonal lattice FIG. 2c
- rectangular lattice FIG. 2d
- triangular lattice FIG. 2e
- FIG. 2f hexagonal lattice
- the lattice in the present invention includes a form of a rotated lattice (for example, FIG. 2g).
- the term “arranged in the form of a lattice” is sufficient if it is disposed in a lattice in 50% or more of the fixed region, preferably 70% or more, more preferably 90% or more, and even more preferably 100%. %, And some of the defects may be included.
- the reinforcing fiber laminate sheet of the present invention preferably further satisfies the following condition (v).
- (V) The center of the fixed portion is arranged in a regular polygonal lattice shape having a side length L 1 (mm), and the length L 1 (mm) satisfies the following expression (1): 1 ⁇ L 1 ⁇ 50 (1)
- 1 ⁇ L1 the adhering portions arranged adjacent to each other are arranged at a distance, so that the adjacent reinforcing fibers can be easily changed in position and orientation at the time of shaping, and wrinkles and twists are generated. It becomes difficult to occur, and the formability is easily improved.
- L1 ⁇ 50 the fixed portions are not separated too much and it is easy to support the unconstrained reinforcing fibers, and thus the morphological stability of the reinforcing fiber laminated sheet is easily improved.
- the radius r (mm) of the fixed portion satisfies the following formula (3).
- 0.5 ⁇ r ⁇ L 1/3 (3) By satisfying 0.5 ⁇ r, the binding force of the reinforcing fiber by the fixing portion is easily exhibited on the fixing surface, and the form stability of the reinforcing fiber laminated sheet is easily improved. Further, by satisfying r ⁇ L 1/3, restraining the fixed portions discretely reinforcing fibers not too large, during shaping, reinforcing fibers adjacent tends changed uniformly position and orientation, during the shaping Wrinkles and creases are less likely to occur, and shapeability is likely to improve.
- the reinforcing fiber laminate sheet of the present invention comprises a plurality of reinforcing fiber bundles aligned in one direction, and the first and second reinforcing fiber bundle layers having no direct binding force between the reinforcing fiber bundles in the same layer.
- the first and second reinforcing fiber bundle layers are fixed to each other by fixing elements, whereby the first and second reinforcing fibers It is a reinforcing fiber laminate sheet in which bundle layers are integrated.
- “A reinforced fiber bundle layer consisting of a plurality of reinforced fiber bundles aligned in one direction and having no direct binding force between reinforced fiber bundles in the same layer” refers to the same layer depending on the weaving structure or knitting structure.
- the form of the inner reinforcing fiber bundle is not maintained.
- the reinforcing fiber bundle in the first or second layer is fixed to the reinforcing fiber bundle arranged in the second or first layer, so that the form is maintained.
- the reinforcing fiber bundle layer is composed of a plurality of reinforcing fiber bundles that are aligned in one direction and have no direct binding force between the reinforcing fiber bundles.
- a single reinforcing fiber bundle layer alone does not form a sheet and cannot be handled.
- a fiber bundle in which reinforcing fiber bundles are arranged in parallel on a table by the AFP method is indicated.
- the auxiliary yarns and the stitching yarns for example, arranged in a direction orthogonal to the reinforcing fiber bundles to restrain the reinforcing fiber bundles, weaken the effects of the present invention such as improvement of shapeability and cost reduction. It is preferable not to use auxiliary yarns or seam yarns.
- the first and second reinforcing fiber bundle layers have different fiber orientations.
- the angle between the fiber orientation in the first reinforcing fiber bundle layer and the fiber orientation in the second reinforcing fiber bundle layer is 5. That is more than a degree.
- the angle is preferably 10 degrees or more, and more preferably 20 degrees or more. These angles are measured by observing the cross section of the substrate or the molded product. When the molded product cannot be destroyed, it can be measured by transmission observation using an X-ray CT scan or the like.
- the reinforcing fiber bundle used in the present invention may be, for example, a reinforcing fiber mixed with an organic fiber, an organic compound or an inorganic compound, or a resin component attached thereto.
- the reinforcing fiber used in the present invention is not particularly limited, and for example, carbon fiber, glass fiber, aramid fiber, alumina fiber, silicon carbide fiber, boron fiber, metal fiber, natural fiber, mineral fiber, etc. can be used. You may use together 1 type, or 2 or more types.
- carbon fibers such as polyacrylonitrile (PAN), pitch, and rayon are preferably used from the viewpoint of high specific strength and specific rigidity of the molded body and weight reduction.
- glass fiber can be preferably used from a viewpoint of improving the economical efficiency of the obtained molded product.
- an aramid fiber can be preferably used from the viewpoint of improving the impact absorbability and the formability of the obtained molded product.
- reinforcing fibers coated with a metal such as nickel, copper, ytterbium, etc. can also be used.
- a heat-meltable resin whose viscosity is lowered by heating can be used.
- “polyesters such as polyethylene terephthalate, polybutylene terephthalate, polytrimethylene terephthalate, polyethylene naphthalate, liquid crystal polyester, polyolefins such as polyethylene, polypropylene, polybutylene, polyarylene sulfides such as polyoxymethylene, polyamide, polyphenylene sulfide, Crystalline thermoplastic resins such as polyketone, polyetherketone, polyetheretherketone, polyetherketoneketone, polyethernitrile, polytetrafluoroethylene and other fluororesins, and liquid crystal polymers; Methyl methacrylate, polyvinyl chloride, polyphenylene ether, polyimide, polyamideimide, polyetherimide, polysulfone Amorphous thermoplastic resins such as ⁇ polyethersulfone, polyarylate '',
- the fixing element is a heat-meltable resin, and the glass transition temperature T g (° C.) or the melting point T m (° C.) thereof is 40 ° C. or more and 200 ° C. or less. preferable.
- the fixing element used in the present invention is, for example, (A) made of a fixing material attached to a reinforcing fiber bundle constituting the reinforcing fiber bundle layer, or (B) formed a reinforcing fiber bundle layer.
- positioned later is mentioned.
- the above-mentioned reinforcing fiber bundle is adhered or coated with the resin in the form of particles, lines, strips, etc. to obtain a reinforcing fiber bundle to which a fixing material is attached. Can do.
- the resin is made by adhering the resin in the form of particles, lines, strips, or the like, or a nonwoven fabric or film made of the resin, By arranging a knitted fabric, a woven fabric or a net-like material, it is possible to obtain a reinforcing fiber bundle layer to which a fixing material is applied or arranged.
- the reinforcing fiber laminated sheet of the present invention preferably has an average diameter ⁇ ( ⁇ m) of 10 ⁇ m to 500 ⁇ m.
- the average diameter ⁇ ( ⁇ m) is more preferably 100 ⁇ m or more and 300 ⁇ m or less.
- the thickness t f (mm) of the reinforcing fiber bundle and the thickness t 1 (mm) of the fixing element satisfy the following formula (2) in the fixing portion. 0.01 ⁇ t 1 / t f ⁇ 0.8 (2)
- the distortion of the reinforcing fiber bundles during deformation of the reinforcing fiber laminated sheet can be freely adjusted in the cross-sectional shape of the reinforcing fiber bundles. It is possible to solve the problem by deforming the reinforced fiber, and the shapeability of the reinforcing fiber laminated sheet can be further improved.
- the “thickness” of the reinforcing fiber bundle and the fixing element refers to the length of the reinforcing fiber bundle and the fixing element in a direction perpendicular to the surface of the reinforcing fiber laminated sheet.
- t 1 and t f are measured as follows. Using a digital microscope (Keyence Co., Ltd. VHX-1000), the fixing element in the reinforced fiber laminated sheet is identified by the method described above, and the reinforced fiber laminated sheet is configured by changing the focal length of the digital microscope. The thickness of the ten or more reinforcing fiber bundles to be measured is measured, the average value thereof is t 1 , the thickness of the fixing element existing at the measurement location is measured, and the average value is defined as t f .
- FIG. 3 shows another embodiment of the reinforcing fiber laminate sheet 301 according to the present invention.
- the fiber reinforced resin molded product of the present invention comprises the reinforced fiber laminated sheet of the present invention and a matrix resin.
- a fiber reinforced resin molded body can be produced, for example, by impregnating the reinforcing fiber laminated sheet of the present invention with a matrix resin.
- RTM method can be used as a method for impregnating the matrix resin. That is, a reinforcing fiber laminated sheet shaped into a cavity shape is placed in a cavity formed by an upper mold and a lower mold of the mold and clamped, and then the mold is pressurized, and the inside of the cavity is evacuated substantially. This is a method of obtaining a molded body by injecting the matrix resin later and further solidifying the matrix resin by heating.
- thermoplastic resins can also be used, but are preferably thermosetting resins such as epoxy resins, unsaturated polyester resins, vinyl ester resins, phenols. Besides these resins, urea resins, melamine resins, and polyimide resins, these copolymers, modified products, and blends of two or more of these resins can also be used.
- an epoxy resin is preferably used from the viewpoint of the mechanical properties of the obtained molded body.
- the method for producing a reinforcing fiber laminate sheet of the present invention includes the following steps (a) to (c).
- the fixing surface of the second reinforcing fiber bundle layer has at least one comprising anchoring portion anchoring element, the average area S 1 is 100mm of said anchoring portion in 2 or less (ii) the fixed portion, the area ratio with respect to the anchoring portion of the anchoring element is 80% or less than 0.1% (iii) the anchoring element, particulate or fibrous aggregate form
- the fixing material is melted.
- FIG. 4 is a flowchart showing one embodiment of the method for producing a reinforcing fiber laminated sheet in the present invention.
- a second reinforcing fiber bundle layer arranging step (402) in which a second reinforcing fiber bundle layer is further arranged on the first reinforcing fiber bundle layer to obtain a reinforcing fiber laminate. )I do.
- a sheeting step (403) is performed to obtain a reinforced fiber laminated sheet satisfying the above conditions (i) and (ii), or (i) and (iii).
- the manufacturing method of the reinforcing fiber laminated sheet according to the present invention includes: (a) a first reinforcing fiber in which a plurality of reinforcing fiber bundles are arranged in one direction on a table and do not have a direct binding force between the reinforcing fiber bundles.
- the manufacturing method of the reinforcing fiber laminated sheet according to the present invention includes (b) a plurality of reinforcing fiber bundles on the first reinforcing fiber bundle layer in a direction different from the fiber direction of the first reinforcing fiber bundle layer.
- a second reinforcing fiber bundle layer arranging step in which the second reinforcing fiber bundle layers are obtained by arranging them in one direction and obtaining a second reinforcing fiber bundle layer having no direct binding force between the reinforcing fiber bundles.
- the reinforcing fiber bundle may be aligned in one direction on the first reinforcing fiber bundle layer to form the second reinforcing fiber bundle layer.
- the reinforcing fiber bundle layer formed in advance on the table may be conveyed and disposed on the first reinforcing fiber bundle layer.
- the reinforcing fiber laminate is partially heated and / or pressurized via a protrusion provided on a surface in contact with the reinforcing fiber laminate, Reinforcement that satisfies the above conditions (i) and (ii) or (i) and (iii) using a sheeting mechanism that melts the fixing material between the reinforcing fiber bundle layer and the second reinforcing fiber bundle layer A sheet forming step of obtaining a fiber laminated sheet.
- the table used in the present invention may be any table that can be maintained at least so that the arranged reinforcing fiber bundle does not move.
- the table has means for adsorbing and holding the reinforcing fiber bundle, and the means has a mechanism using electrostatic attraction and / or a mechanism using attraction generated by the flow of air. Is preferred.
- the reinforcing fiber laminate is partially heated and / or pressurized via the protrusions on the surface in contact with the reinforcing fiber laminate, and the fixing material A sheeting mechanism is used to melt the material.
- the sheet forming mechanism there is a mechanism of heating and / or pressurizing using a flat plate-shaped indenter or roller having protrusions.
- the fixing material existing between the layers of the plurality of reinforcing fiber bundle layers is melted, and at least one fixing element is arranged in a specific form to be described later in the fixing portion.
- the portion where the sheet forming mechanism is applied to the reinforcing fiber bundle layer becomes a fixing region, and the portion of the protrusion that actually contacts the reinforcing fiber bundle layer can basically become the fixing portion.
- FIG. 5 is a schematic diagram for explaining the relationship between the fixing element, the fixing portion, and the fixing region as seen from the viewpoint of the method for manufacturing the reinforcing fiber laminated sheet according to the present invention.
- the fixing material 504 is disposed on the first reinforcing fiber bundle layer 505, and the reinforcing fiber laminate is formed on the second reinforcing fiber bundle layer (not shown) disposed thereon by a sheeting mechanism. Heat and / or pressurize. At this time, the place where the sheeting mechanism is heated and / or pressurized is the fixing region 503, and the place where the projection of the sheeting mechanism is in contact with the reinforcing fiber laminate is the fixing portion 502. Further, the fixing material 504 of the fixing portion 502 becomes a fixing element 501 that melts and contributes to interlayer fixing.
- the formability refers to the property that the reinforcing fiber laminated sheet can easily follow a three-dimensional shape mold without wrinkling of the sheet or twisting of the fiber.
- Shape stability refers to the property that the reinforcing fiber bundles are not peeled while being constrained even during shaping, and the integrity as a sheet can be maintained. Both formability and form stability are evaluated by the methods described below.
- the method for producing a reinforcing fiber laminate sheet according to the present invention has a fixing region including at least one fixing portion on the fixing surface of the first and second reinforcing fiber bundle layers, and the fixing to the reinforcing fiber laminate sheet.
- the area ratio of the region is preferably 30% or more and 100% or less.
- the average area S 2 of the fixing region is to 10000 mm 2 or more.
- the average area S 2 of the fixing region by a 10000 mm 2 or more, tends to particularly improve the shape stability and handling properties of the reinforcing fiber laminated sheets.
- the area ratio of the fixing portion to the fixing region is 1% or more and 50% or less.
- the area ratio of the fixing portion to the fixing region is more preferably 1% to 25%, and further preferably 5% to 20%.
- the area ratio of the fixing portion to the fixing region is 1% or more, the binding force between the reinforcing fiber bundles or the reinforcing fiber bundle layers is increased, and the shape stability of the reinforcing fiber laminated sheet is improved.
- the area ratio of the fixing portion to the fixing region refers to the ratio of the total area of the fixing portions existing in each fixing region. .
- the method for producing a reinforced fiber laminate sheet of the present invention preferably further satisfies the following condition (iv). (Iv) having the fixing region where the center of the fixing portion is arranged in a polygonal lattice shape;
- the center of the fixed portion in a polygonal lattice shape, as described above, when the reinforcing fiber laminated sheet is shaped, the orientation of the reinforcing fibers adjacent to each other is deformed while maintaining a uniform positional relationship. As it becomes easier, wrinkles and twists are less likely to occur, and the formability is improved. Even if the fixing region where the center of the fixing portion is arranged in a polygonal lattice is partially present at a position where wrinkles are likely to occur in the reinforcing fiber laminated sheet at the time of shaping, the shaping property is improved. .
- the manufacturing method of the reinforcing fiber laminated sheet of the present invention further satisfies the following condition (v).
- (V) The center of the fixed portion is arranged in a regular polygonal lattice of L 1 (mm) on one side, and the length L 1 (mm) satisfies the following expression (1): 1 ⁇ L 1 ⁇ 50 (1)
- the length L 1 (mm) is 1 mm or more
- the binding force between the reinforcing fiber bundle layers can be weakened, and the formability of the reinforcing fiber laminated sheet is easily improved.
- it is 50 mm or less the binding force between the reinforcing fiber bundles or between the reinforcing fiber bundle layers can be increased, and the form stability of the reinforcing fiber laminated sheet is easily improved.
- the radius r satisfies the following formula (3). 0.5 ⁇ r ⁇ L 1/3 (3)
- the radius r satisfies the following formula (3). 0.5 ⁇ r ⁇ L 1/3 (3)
- the manufacturing method of the reinforced fiber lamination sheet of this invention has the following processes (a1) between the said process (a) and (b).
- (A1) A fixing material arranging step of arranging a fixing material on the first reinforcing fiber bundle layer.
- FIG. 6 is a flowchart showing another embodiment of the method for producing a reinforced fiber laminate sheet of the present invention, which has the step (a1).
- an adhering material is arranged on the first reinforcing fiber bundle layer between the first reinforcing fiber bundle layer arranging step (601) and the second reinforcing fiber bundle layer arranging step (603).
- a material arrangement step (602) is performed.
- the manufacturing method of the reinforcing fiber laminate sheet of the present invention can arrange a more appropriate amount of the fixing material by having the step (a1) between the steps (a) and (b). It will be possible to reliably perform the functions as designed.
- the heat-meltable resin is particulated on the surface of the first reinforcing fiber bundle layer or the surface of the second reinforcing fiber bundle layer that comes into contact with the first reinforcing fiber bundle layer.
- Place the fixing material by spreading or attaching a linear, belt-like or other non-woven fabric, film, knitted fabric, woven fabric, or net-like material made of the above-mentioned heat-meltable resin. be able to.
- the reinforcing fiber bundle in the step (a) and / or the step (b) is preferably a reinforcing fiber bundle to which a fixing material is attached.
- the reinforcing fiber bundle is the reinforcing fiber bundle to which the fixing material is adhered, the reinforcing fiber bundle becomes more rigid, the shape change at the time of arrangement is suppressed, and the uniformity of the reinforcing fiber bundle layer is improved.
- the reinforcing fiber bundle to which the fixing material is attached can be obtained, for example, by adhering or coating the reinforcing resin bundle in the form of particles, lines, strips, etc., as described above. .
- the manufacturing method of the reinforced fiber lamination sheet of this invention has the following processes (d) simultaneously with the said process (c) or after a process (c).
- (D) A fixing frame forming step of forming a fixing frame in at least a part of the end portion of the reinforcing fiber laminate sheet
- the fixing frame forming step is formed by the step (d). Since the fixed frame may be displaced during the step (c), it is preferable to include the step (d) at the same time as the step (c) or after the step (c).
- belt shape is formed, and it is the subject of the base material obtained by AFP method. Further, fraying and disturbance of the reinforcing fiber bundle at the end portion of the reinforcing fiber laminate sheet can be further suppressed.
- the reinforced fiber laminated sheet it is shaped into a simple element type (Fig. 7), which is a shape obtained by cutting an elliptical sphere shape in the horizontal direction, and the shape of the Z-type stringer used for aircraft skin stringer structures.
- the model shape mold 1 (FIG. 8) imitating the shape and the shape of the model shape mold 2 (FIG. 9) imitating the shape of the trunk lid of the automobile were evaluated.
- the formability evaluation criteria of a reinforced fiber lamination sheet are shown.
- the fiber reinforced resin molded body the fiber obtained by molding by the RTM method using the preform obtained by the model shape mold 1 and the model shape mold 2
- the reinforced resin molded body was evaluated by visually checking the degree of occurrence of defects such as wrinkles of the reinforcing fiber bundle layer in the molded body.
- the evaluation criteria of a fiber reinforced resin molding are shown.
- Matrix resin As the matrix resin, a two-component epoxy resin (main agent: jER828 manufactured by Mitsubishi Chemical Corporation, curing agent: acid anhydride curing agent manufactured by Toray Industries, Inc.) was used.
- Indenter plate 6 This is a copper indenter plate in which circular projections having a radius (r) of 2.5 mm and a height of 1 mm are arranged at random positions.
- Flat plate 1 It is a copper flat plate that does not have protrusions like the indenter plates 1-7.
- Example 1 The reinforcing fiber bundle 1 obtained in Reference Example 1 is arranged in one direction on a table capable of adsorbing and holding the reinforcing fiber bundle by a mechanism using electrostatic attraction by an AFP device, and the reinforcing fiber bundle is arranged. Layers (reinforced fiber bundle layers 1 to 8) were produced. Table 1 shows the produced reinforcing fiber bundle layer for each shape.
- the indented plate 1 heated to 150 ° C. area ratio of the adhering portion to the adhering region: 5%
- the indented plate 1 heated to 150 ° C. area ratio of the adhering portion to the adhering region: 5%
- the part pressed by the indenter plate 1, that is, the fixing region was 100% in area ratio in the reinforcing fiber laminated sheet.
- the area of the protrusion was defined as the area of the fixed portion.
- Tables 2 and 3 show the evaluation results of the formability and form stability of the reinforcing fiber laminated sheet. No wrinkles or peeling was observed on the reinforcing fiber laminated sheet after shaping. (Evaluation of formability of reinforcing fiber laminate sheet in model shape mold 1) After arranging the reinforcing fiber bundle layer 3 on the one-layer table, the second reinforcing fiber bundle layer 4 arranged to form 90 ° with the fiber orientation angle of the first reinforcing fiber bundle was arranged. .
- the indented plate 1 heated to 150 ° C. area ratio of the adhering portion to the adhering region: 5%
- the indented plate 1 heated to 150 ° C. area ratio of the adhering portion to the adhering region: 5%
- the pressure of the protruding portion becomes 120 kPa and the protruding portions arranged in a lattice pattern Only the adhesive was fixed to form a fixed portion, and a reinforcing fiber laminated sheet (1B) was obtained.
- the part pressed by the indenter plate 1, that is, the fixing region was 100% in area ratio in the reinforcing fiber laminated sheet.
- Tables 2 and 3 show the evaluation results of the formability and form stability of the reinforcing fiber laminated sheet. No wrinkles or peeling was observed on the reinforcing fiber laminated sheet after shaping.
- Evaluation of moldability of fiber reinforced resin molded product with model shape mold 1 Four reinforcing fiber laminate sheets (1B) were laminated on the model shape mold 1 and shaped to obtain a preform. Then, the preform obtained was placed in a mold heated to 130 ° C., clamped, and the mold was pressurized at 4 MPa to make the inside of the cavity substantially vacuum, and then the matrix resin of Reference Example 3 was 0.1 MPa. Injected at the injection pressure. After the injection, the temperature and pressure of the mold were maintained, the matrix resin was sufficiently cured, the mold was opened, and the molded body was demolded to obtain a fiber reinforced resin molded body (1C).
- Tables 2 and 3 show the evaluation results of the fiber reinforced resin molded product. As a result of visual confirmation, wrinkles of the reinforcing fiber bundle layer were not observed in the molded body, and a very good molded body was obtained. (Evaluation of formability of reinforcing fiber laminate sheet in model shape mold 2) After arranging the reinforcing fiber bundle layer 5 on the one-layer table, the second reinforcing fiber bundle layer 6 arranged to form 90 ° with the fiber orientation angle of the first reinforcing fiber bundle was arranged. .
- the indented plate 1 heated to 150 ° C. area ratio of the adhering portion to the adhering region: 5%
- the indented plate 1 heated to 150 ° C. area ratio of the adhering portion to the adhering region: 5%
- the pressure of the protruding portion becomes 120 kPa and the protruding portions arranged in a lattice pattern Only the adhesive was fixed to form a fixing portion, and a reinforcing fiber laminated sheet (1D) was obtained.
- the part pressed by the indenter plate 1, that is, the fixing region was 100% in area ratio in the reinforcing fiber laminated sheet.
- Tables 2 and 3 show the evaluation results of the formability and form stability of the reinforcing fiber laminated sheet. No wrinkles or peeling was observed on the reinforcing fiber laminated sheet after shaping. (Evaluation of moldability of fiber reinforced resin molding with model shape mold 2)
- the reinforcing fiber bundle layer 7 is arranged on a single layer table, and then arranged to form 90 ° with the fiber orientation angle of the first reinforcing fiber bundle 2
- Reinforcing fiber laminated sheets (1D-2) that differ only in the arrangement of the reinforcing fiber bundle 8 of the layer are manufactured, and the reinforcing fiber laminated sheets (1D, 1D-2) are symmetrically laminated on the actual shape model mold 2.
- Tables 2 and 3 show the evaluation results of the fiber reinforced resin molded product. As a result of visual confirmation, wrinkles of the reinforcing fiber bundle layer were not observed in the molded body, and a very good molded body was obtained.
- (2B), (2D), and fiber-reinforced resin molded bodies (2C), (2E) were obtained.
- Table 2 shows the evaluation results of the reinforced fiber laminate sheet and the evaluation results of the fiber reinforced resin molded product.
- the simple element type (2A) has one wrinkle
- the model shape type 1 (2B) has one wrinkle
- the model shape type 2 (2C) has one wrinkle.
- peeling of the fiber bundle having a maximum length of 2 mm was observed, but no wrinkles or peeling causing problems were observed.
- two wrinkles of the reinforcing fiber bundle were observed in the model shape mold 1 (2D), and two wrinkles of the reinforcing fiber bundle were observed in the model shape mold 2 (2E). A shaped body was obtained.
- Example 3 Reinforcing fiber laminate sheets (3A) and (3B) in the same manner as in Example 1 except that the indenter plate used for fixing the reinforcing fiber bundle layer is changed to the indenter plate 3 (area ratio of the fixing portion to the fixing region: 20%). ), (3D), and fiber-reinforced resin molded bodies (3C) and (3E) were obtained.
- Tables 2 and 3 show the evaluation results of the reinforcing fiber laminate sheet and the evaluation results of the fiber reinforced resin molded product.
- formability and form stability two wrinkles are observed at the simple element type (3A), two wrinkles at the model shape type 1 (3B), and two wrinkles at the model shape type 2 (3C).
- peeling of the fiber bundle having a maximum length of 2 mm was observed, but no wrinkles or peeling causing problems were observed.
- the model shape mold 1 (3D) showed three wrinkles of the reinforcing fiber bundle layer
- the model shape mold 2 (3E) showed three wrinkles of the reinforcing fiber bundle layer. A good molded body was obtained.
- Example 4 Reinforcing fiber laminate sheets (4A) and (4B) in the same manner as in Example 1 except that the indenter plate used for fixing the reinforcing fiber bundle layer is changed to the indenter plate 4 (area ratio of the fixing portion to the fixing region: 6%). ), (4D), and fiber reinforced resin molded bodies (4C) and (4E) were obtained.
- Tables 2 and 3 show the evaluation results of the reinforcing fiber laminate sheet and the evaluation results of the fiber reinforced resin molded product.
- the simple element mold (4A) has 5 wrinkles
- the model shape mold 1 (4B) has 6 wrinkles
- the fiber bundle with a maximum of 3 mm is peeled off at the end.
- the model shape mold 2 (4C) the wrinkles were peeled off at 6 places and the fiber bundle having a maximum of 4 mm was peeled off at the end portion, but no wrinkles or peeling causing problems were observed.
- Tables 2 and 3 show the evaluation results of the reinforcing fiber laminate sheet and the evaluation results of the fiber reinforced resin molded product.
- formability and form stability in the simple element mold (5A), wrinkles were observed at two places, in the model shape mold 1 (5B), wrinkles were observed at three places, and the fiber bundles having a maximum of 2 mm were peeled off at the ends.
- model shape mold 2 In the model shape mold 2 (5C), the wrinkles were peeled off at 3 places and the fiber bundle of 2 mm at the maximum at the end portion, but no wrinkles or peeling causing problems were observed.
- Tables 2 and 3 show the evaluation results of the reinforcing fiber laminate sheet and the evaluation results of the fiber reinforced resin molded product.
- the simple element type (6A) peeling of the reinforcing fiber bundle occurred mainly around the end of the reinforcing fiber laminated sheet, and peeling of a maximum of 4 mm occurred.
- Example 7 A reinforcing fiber laminated sheet (7A) was obtained in the same manner as in Example 1 except that the fixing region was the following two locations (R1) and (R2).
- Tables 4 and 5 show the evaluation results of the reinforcing fiber laminated sheet. Regarding the formability and form stability, wrinkles were not observed in the simple element type (7A), but peeling of the fiber bundles of up to 4 mm was observed.
- [Comparative Example 1] Other than changing the indenter plate used for fixing the reinforcing fiber bundle layer to flat plate 1 (fixed part: entire sheet (area is the same as the sheet area (both are 100 mm 2 or more)) fixed part area ratio to fixed area: 100%) Obtained the reinforcing fiber laminated sheets (8A), (8B), and (8D) in the same manner as in Example 1.
- Tables 4 and 5 show the evaluation results of the reinforcing fiber laminated sheet.
- the simple element type (8A) the fiber bundle was not peeled off, but the reinforcing fiber laminated sheet was folded in a state where it was buckled in the out-of-plane direction. Wrinkles occurred.
- model shape mold 1 (8B) and model shape mold 2 (8C) the fiber bundles were not peeled off, but similar wrinkles were generated and could not be used for molding the fiber-reinforced resin molded body.
- Tables 4 and 5 show the evaluation results of the reinforcing fiber laminated sheet.
- the fiber bundle was not peeled off, but it was folded in a state where a part of the reinforcing fiber laminated sheet was buckled in the out-of-plane direction. Wrinkles occurred.
- model shape mold 1 (9B) and model shape mold 2 (9C) the fiber bundles were not peeled off, but similar wrinkles were generated and could not be used for molding the fiber-reinforced resin molded body.
- R1 The range within 20 mm from the outer periphery of the reinforcing fiber laminate sheet In this case, the area ratio to the fixing region is 25%.
- Tables 4 and 5 show the evaluation results of the reinforcing fiber laminated sheet.
- the formability and form stability in the simple element type (10A), four wrinkles occurred, and in the non-fixed region of the reinforcing fiber laminated sheet, the reinforcing fiber bundles frequently peeled, and the maximum 10 mm peeling occurred. More than one place occurred.
- Tables 4 and 5 show the evaluation results of the reinforcing fiber laminated sheet.
- the fiber bundle was not peeled off, but the reinforcing fiber laminated sheet was folded in a state where it was buckled in the out-of-plane direction. Wrinkles occurred.
- model shape mold 1 (11B) and model shape mold 2 (11C) the fiber bundles were not peeled off, but similar wrinkles were generated and could not be used for molding the fiber-reinforced resin molded body.
- the method for producing a reinforced fiber laminate sheet according to the present invention can provide a reinforced fiber laminate sheet that can be suitably used even if the fiber reinforced plastic molded body has a complicated curved surface.
- the fiber reinforced resin molded body molded using the reinforced fiber laminate sheet according to the present invention includes, for example, a primary structural member, a secondary structural member, and an exterior in transportation equipment such as aircraft members, automobile members, and motorcycle members. It is also suitable for parts for general industrial use such as parts and interior parts, or medical equipment such as windmill blades, robot arms and X-ray tops.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medicinal Chemistry (AREA)
- Organic Chemistry (AREA)
- Polymers & Plastics (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Composite Materials (AREA)
- Textile Engineering (AREA)
- Robotics (AREA)
- Laminated Bodies (AREA)
- Reinforced Plastic Materials (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
Description
(1)一方向に引き揃えられている複数の強化繊維束からなり、同一層内の強化繊維束間に直接的な拘束力のない第1、第2の強化繊維束層が、互いに繊維配向が異なるように配置されてなり、かつ、前記第1、第2の強化繊維束層の層間が固着素子によって互いに固着されていることで、前記第1、第2の強化繊維束層が一体化されてなる強化繊維積層シートであって、以下の条件(i)かつ(ii)を満たす強化繊維積層シート。
(i)前記第1、第2の強化繊維束層の固着面において、固着素子を少なくとも1つ含む固着部分を有し、前記固着部分の平均面積S1が100mm2以下である
(ii)前記固着部分内において、前記固着素子の前記固着部分に対する面積割合が、0.1%以上80%以下である
(2)一方向に引き揃えられている複数の強化繊維束からなり、同一層内の強化繊維束間に直接的な拘束力のない第1、第2の強化繊維束層が、互いに繊維配向が異なるように配置されてなり、かつ、前記第1、第2の強化繊維束層の層間が固着素子によって互いに固着されていることで、前記第1、第2の強化繊維束層が一体化されてなる強化繊維積層シートであって、以下の条件(i)かつ(iii)を満たす強化繊維積層シート。
(i)前記第1、第2の強化繊維束層の固着面において、固着素子を少なくとも1つ含む固着部分を有し、前記固着部分の平均面積S1が100mm2以下である
(iii)前記固着素子が、粒子状もしくは繊維集合体状の固着材が溶融したものである
(3)前記第1、第2の強化繊維束層の固着面において、前記固着部分を少なくとも1箇所含む固着領域を有し、前記強化繊維積層シートに対する前記固着領域の面積割合が30%以上100%以下である上記(1)または(2)に記載の強化繊維積層シート。
(4)固着領域に対する固着部分の面積割合が1%以上50%以下である固着領域を少なくとも一つ有する、上記(1)~(3)のいずれかに記載の強化繊維積層シート。
(5)上記(1)~(4)のいずれかに記載の強化繊維積層シートであって、さらに以下の条件(iv)を満たす、強化繊維積層シート。
(iv)前記固着部分の中心が多角形状の格子状に配置される前記固着領域を有すること
(6)上記(1)~(5)のいずれかに記載の強化繊維積層シートであって、さらに以下の条件(v)を満たす、強化繊維積層シート。
(v)前記固着部分の中心が1辺の長さL1(mm)の正多角形状の格子状に配置され、前記長さL1(mm)が以下の式(1)を満たすこと
1≦L1≦50 (1)
(7)上記(1)~(6)のいずれかに記載の強化繊維積層シートとマトリックス樹脂とからなる繊維強化樹脂成形体。
(8)以下の工程(a)~(c)を有する、強化繊維積層シートの製造方法。
(a)複数の強化繊維束をテーブル上に一方向に引き揃えて配置し、同一層内の強化繊維束間に直接的な拘束力のない第1の強化繊維束層を得る、第1の強化繊維束層配置工程
(b)前記第1の強化繊維束層の上に、さらに複数の強化繊維束を前記第1の強化繊維束層の繊維方向とは異なる方向に、一方向に引き揃えて配置し、同一層内の強化繊維束間に直接的な拘束力のない第2の強化繊維束層を得て強化繊維積層体とする、第2の強化繊維束層配置工程
(c)前記強化繊維積層体と接触する面に有する突起を介し、部分的に前記強化繊維積層体を加熱および/または加圧し、前記第1の強化繊維束層と前記第2の強化繊維束層の層間の固着材を溶融させるシート化機構を用いて、以下の条件(i)かつ(ii)を満たす強化繊維積層シートを得る、シート化工程
(i)前記第1、第2の強化繊維束層の固着面において、固着素子を少なくとも1つ含む固着部分を有し、前記固着部分の平均面積S1が100mm2以下である
(ii)前記固着部分内において、前記固着素子の前記固着部分に対する面積割合が、0.1%以上80%以下である
(9)以下の工程(a)~(c)を有する、強化繊維積層シートの製造方法。
(a)複数の強化繊維束をテーブル上に一方向に引き揃えて配置し、同一層内の強化繊維束間に直接的な拘束力のない第1の強化繊維束層を得る、第1の強化繊維束層配置工程
(b)前記第1の強化繊維束層の上に、さらに複数の強化繊維束を前記第1の強化繊維束層の繊維方向とは異なる方向に、一方向に引き揃えて配置し、同一層内の強化繊維束間に直接的な拘束力のない第2の強化繊維束層を得て強化繊維積層体とする、第2の強化繊維束層配置工程
(c)前記強化繊維積層体と接触する面に有する突起を介し、部分的に前記強化繊維積層体を加熱および/または加圧し、前記第1の強化繊維束層と前記第2の強化繊維束層の層間の固着材を溶融させるシート化機構を用いて、以下の条件(i)かつ(iii)を満たす強化繊維積層シートを得る、シート化工程
(i)前記第1、第2の強化繊維束層の固着面において、固着素子を少なくとも1つ含む固着部分を有し、前記固着部分の平均面積S1が100mm2以下である。
(iii)前記固着素子が、粒子状もしくは繊維集合体状の固着材が溶融したものである。
(10)前記工程(a)と(b)の間に、以下の工程(a1)を有する、上記(8)または(9)に記載の強化繊維積層シートの製造方法。
(a1)前記第1の強化繊維束層上に固着材を配置する、固着材配置工程
(11)前記工程(a)および/または前記工程(b)における強化繊維束が、固着材が付着した強化繊維束である、上記(8)~(10)のいずれかに記載の強化繊維積層シートの製造方法。
(12)前記第1、第2の強化繊維束層の固着面において、前記固着部分を少なくとも1つ含む固着領域を有し、前記強化繊維積層シートに対する前記固着領域の面積割合が30%以上100%以下である、上記(8)~(11)のいずれかに記載の強化繊維積層シートの製造方法。
(13)前記固着領域に対する固着部分の面積割合が1%以上50%以下である固着領域を少なくとも一つ有する、上記(12)に記載の強化繊維積層シートの製造方法。
(14)上記(8)~(12)のいずれかに記載の強化繊維積層シートの製造方法であって、さらに以下の条件(iv)を満たす、強化繊維積層シートの製造方法。
(iv)前記固着部分の中心が多角形状の格子状に配置される前記固着領域を有すること
(15)上記(8)~(14)のいずれかに記載の強化繊維積層シートの製造方法であって、さらに以下の条件(v)を満たす、強化繊維積層シートの製造方法。
(v)前記固着部分の中心が1辺の長さL1(mm)の正多角形状の格子状に配置され、前記長さL1(mm)が以下の式(1)を満たすこと
1≦L1≦50 (1)
(16)前記工程(c)と同時か、工程(c)の後に、以下の工程(d)を有する、上記(8)~(15)のいずれかに記載の強化繊維積層シートの製造方法。
(d)前記強化繊維積層シートの端部の少なくとも一部において固着枠を形成する、固着枠形成工程
(17)前記テーブルが前記強化繊維束を吸着し、保持する手段を有し、前記手段が静電気的引力を用いた機構、および/または、空気の流動によって発生する引力を用いた機構を有する、上記(8)~(16)のいずれかに記載の強化繊維積層シートの製造方法。
(i)前記第1、第2の強化繊維束層の固着面において、固着素子を少なくとも1つ含む固着部分を有し、前記固着部分の平均面積S1が100mm2以下である
(ii)前記固着部分内において、前記固着素子の前記固着部分に対する面積割合が、0.1%以上80%以下である
(iii)前記固着素子が、粒子状もしくは繊維集合体状の固着材が溶融したものである。
1)ある固着素子と他の固着素子との距離が1mm以下の場合、それらの固着素子は互いに連続しているとする。
2)互いに直接的または間接的に連続する固着素子の集合を固着素子グループとする。ただし、他のどの固着素子とも連続しない固着素子については、その固着素子一つで一つの固着素子グループとする。
3)一つの固着素子グループに属する固着素子をすべて含む最小の円で囲われた部分を固着部分とする。また、固着部分と定義した円の面積を各々算出し、強化繊維シートに含まれる全ての固着部分の平均面積をS1とする。
1)ある固着部分と他の固着部分との距離が100mm以下の場合、それらの固着部分は互いに連続しているとする。
2)互いに直接的または間接的に連続する固着部分の集合を固着部分グループとする。二つ以下の固着部分からなる固着部分の集合、または、二つ以上の固着部分からなるが、すべての固着部分が一直線上に並ぶような固着部分の集合は、固着部分グループではないものとする。
3)一つの固着部分グループに属する固着部分の中心を直線で結んで得られる多角形であって、前記固着部分グループに属するすべての固着部分をその内側または周上に含む多角形のうち、最大の面積を有するものを固着領域とする。また、強化繊維積層シートに含まれる全ての固着領域の平均面積をS2とする。
(i)前記第1、第2の強化繊維束層の固着面において、固着素子を少なくとも1つ含む固着部分の平均面積S1が100mm2以下である
(ii)前記固着部分内において、前記固着素子の前記固着部分に対する面積割合が、0.1%以上80%以下である
前記の(i)について、平均面積S1が100mm2以下、好ましくは80mm2以下、更に好ましくは60mm2以下であることにより、強化繊維束が拘束されている部分が少なくなり、シートが変形しやすくなり、賦形性が向上する。平均面積S1の下限に特に制限はないが、固着部分が極端に小さく、固着部分内部に含まれる固着素子が少ない場合、固着素子による固着面における強化繊維の拘束力が弱まることがあるため、固着部分は検出しうる最小の固着素子サイズである0.01mm2以上であることが好ましく、1mm2以上であることがより好ましい。
(i)前記第1、第2の強化繊維束層の固着面において、固着素子を少なくとも1つ含む固着部分の平均面積S1が100mm2以下である
(iii)前記固着素子が、粒子状もしくは繊維集合体状の樹脂が溶融したものである。
(iv)前記固着部分の中心が多角形状の格子状に配置される前記固着領域を有すること
固着部分の中心が多角形状の格子状に配置されることにより、強化繊維積層シートの賦形時、互いに隣りあった強化繊維の配向が均一な位置関係を保った状態で変形しやすくなるため、シワやヨレが起きにくくなり、賦形性が向上する。固着部分の中心が多角形状の格子状に配置される固着領域が、賦形時の前記強化繊維積層シートにおいてしわが生じやすい位置などに、部分的に存在することでも、賦形性が向上する。
(v)前記固着部分の中心が1辺の長さL1(mm)の正多角形状の格子状に配置され、前記長さL1(mm)が以下の式(1)を満たすこと
1≦L1≦50 (1)
1≦L1を満たすことにより、隣接して配置された固着部分どうしが距離を取って配置されるため、賦形時に、隣接する強化繊維が均一に位置や配向を変えやすくなり、シワやヨレが生じにくくなり、賦形性が向上しやすくなる。また、L1≦50を満たすことにより、固着部分どうしが離れすぎず、拘束されていない強化繊維を支えやすくなるため、強化繊維積層シートの形態安定性が向上しやすくなる。
0.5≦r≦L1/3 (3)
0.5≦rを満たすことにより、固着面において固着部分による強化繊維の拘束力が発揮されやすくなり、強化繊維積層シートの形態安定性が向上しやすくなる。また、r≦L1/3を満たすことにより、大きすぎない固着部分が離散的に強化繊維を拘束し、賦形時に、隣接する強化繊維が均一に位置や配向を変えやすくなり、賦形時のシワやヨレが生じにくくなり、賦形性が向上しやすくなる。
このような構成をとることでAFP法によって基材を得ることができ、賦形性と形態安定性を両立しハンドリング可能な基材となる。
0.01≦t1/tf≦0.8 (2)
上記の式(2)を満たすことによっても、強化繊維束を全て拘束することを避けることができることから、強化繊維積層シートの変形時に強化繊維束に生じる歪を、強化繊維束の断面形状を自在に変形させて解消することができ、強化繊維積層シートの賦形性をさらに向上させることができる。なお、ここで、強化繊維束、固着素子の「厚み」とは、強化繊維積層シートの表面に対して垂直な方向における強化繊維束、固着素子の長さを指す。
(a)複数の強化繊維束をテーブル上に一方向に引き揃えて配置し、強化繊維束間に直接的な拘束力のない第1の強化繊維束層を得る、第1の強化繊維束層配置工程
(b)前記第1の強化繊維束層の上に、さらに複数の強化繊維束を前記第1の強化繊維束層の繊維方向とは異なる方向に、一方向に引き揃えて配置し、強化繊維束間に直接的な拘束力のない第2の強化繊維束層を得て強化繊維積層体とする、第2の強化繊維束層配置工程
(c)前記強化繊維積層体と接触する面に有する突起を介し、部分的に前記強化繊維積層体を加熱および/または加圧し、前記第1の強化繊維束層と前記第2の強化繊維束層の層間の固着材を溶融させるシート化機構を用いて、以下の条件(i)かつ(ii)、もしくは(i)かつ(iii)を満たす強化繊維積層シートを得る、シート化工程
(i)前記第1、第2の強化繊維束層の固着面において、固着素子を少なくとも1つ含む固着部分を有し、前記固着部分の平均面積S1が100mm2以下である
(ii)前記固着部分内において、前記固着素子の前記固着部分に対する面積割合が、0.1%以上80%以下である
(iii)前記固着素子が、粒子状もしくは繊維集合体状の固着材が溶融したものである。
(iv)前記固着部分の中心が多角形状の格子状に配置される前記固着領域を有させること。
(v)前記固着部分の中心を1辺のL1(mm)の正多角形状の格子状に配置させ、前記長さL1(mm)が以下の式(1)を満たさせること
1≦L1≦50 (1)
前記の通り、前記長さL1(mm)が1mm以上であると強化繊維束層同士の拘束力が弱くすることができ、強化繊維積層シートの賦形性が向上しやすくなる。一方で、50mm以下であると、強化繊維束同士、あるいは、強化繊維束層同士の拘束力が強くすることができ、強化繊維積層シートの形態安定性が向上しやすくなる。
0.5≦r≦L1/3 (3)
前記半径rが0.5以上とすることにより、固着面において固着部分による強化繊維の拘束力が発揮されやすくなり、強化繊維積層シートの形態安定性が向上しやすくなる。また、前記半径rがL1/3以下とすることにより、大きすぎない固着部分が離散的に強化繊維を拘束し、賦形時に、隣接する強化繊維が均一に位置や配向を変えやすくなり、賦形時のシワやヨレが生じにくくなり、賦形性が向上しやすくなる。
(a1)前記第1の強化繊維束層上に固着材を配置する、固着材配置工程。
(d)前記強化繊維積層シートの端部の少なくとも一部において固着枠を形成する、固着枠形成工程
前記工程(c)より先に前記工程(d)を有すると、工程(d)により形成された固着枠が、工程(c)の際にずれてしまう場合があることから、前記工程(c)と同時か、工程(c)の後に、前記工程(d)を有することが好ましい。また、前記工程(d)を有することにより、本発明に係る強化繊維積層シートの端部に線状または帯状に固定されてなる固着枠が形成され、AFP法によって得られる基材の課題である、強化繊維積層シート端部における強化繊維束のほつれや乱れをさらに抑制することができる。
AA: しわなし
A: 面外方向のしわが4箇所以内である
B: 面外方向のしわが5箇所以上10箇所以内である
C: 面外方向のしわが10箇所以上である
また、以下に強化繊維積層シートの形態安定性評価基準を示す。
AA: 剥がれなし
A: 剥がれた部分の強化繊維束間の隙間が最大3mm未満である
B: 剥がれた部分の強化繊維束間の隙間が最大3mm以上5mm未満である
C: 剥がれた部分の強化繊維束間の隙間が最大5mm以上である
一方、繊維強化樹脂成形体の評価については、モデル形状型1、モデル形状型2で得られたプリフォームを用い、RTM法にて成形して得た繊維強化樹脂成形体を、成形体中の強化繊維束層のしわ等の不良の発生の度合いを目視で確認することにより評価した。以下に、繊維強化樹脂成形体の評価基準を示す。
AA: しわ等の不良なし
A: しわ等の不良が4箇所以内である
B: しわ等の不良が5箇所以上10箇所以内である
C: しわ等の不良が10箇所以上である
[参考例1]強化繊維束1
東レ株式会社製炭素繊維“トレカ”T700SC(単糸数:24000本)を、開繊ローラーを有する開繊機にて幅25mmとなるように開繊した。続いて、平均粒子径150μmのビスフェノールA型エポキシ樹脂(ハンツマン社製 XB3366、Tg:80℃)からなる固着材が、炭素繊維重量に対して4wt%の重量で付着させた。さらに、固着材を付着させた炭素繊維を加熱装置内において200℃で加熱することで固着材の一部を溶融させ、後工程で固着材が取れないようにし、強化繊維束1を得た。
[参考例2]マトリックス樹脂
マトリックス樹脂として、2液性エポキシ樹脂(主剤:三菱化学株式会社製 jER828、硬化剤:東レ株式会社製 酸無水物系硬化剤)を用いた。
[参考例3]圧子板1
1辺の長さ(L1)が20mm(L1/3=6.7mm)の正方形格子の各頂点位置に、半径(r)が2.5mmの円形状で高さ1mmの突起部が配置された、銅製の圧子板である。
[参考例4]圧子板2
1辺の長さ(L1)が20mm(L1/3=6.7mm)の正方形格子の各頂点位置に、1辺の長さが7.07mmの正方形形状で高さ1mmの突起部が配置された、銅製の圧子板である。この圧子板において、半径(r)は5.0mmとなる。
[参考例5]圧子板3
1辺の長さ(L1)が5mm(L1/3=1.7mm)の正方形格子の各頂点位置に、半径(r)が1.25mm、高さ1mmの円形状の突起部が配置された、銅製の圧子板である。
[参考例6]圧子板4
1辺の長さ(L1)が20mm(L1/3=6.7mm)の正三角形格子の各頂点位置に、半径(r)が2.5mm、高さ1mmの円形状の突起部が配置された、銅製の圧子板である。
[参考例7]圧子板5
1辺の長さ(L1)が20mm(L1/3=6.7mm)の正六角形格子の各頂点位置に、半径(r)が2.5mm、高さ1mmの円形状の突起部が配置された、銅製の圧子板である。
[参考例8]圧子板6
ランダムな位置に、半径(r)が2.5mm、高さ1mmの円形状の突起部が配置された、銅製の圧子板である。
[参考例9]圧子板7
1辺の長さ(L1)が5mm(L1/3=1.7mm)の正方形格子の各頂点位置に、半径(r)が2.5mm、高さ1mmの円形状の突起部が配置された、銅製の圧子板である。
[参考例10]平板1
圧子板1~7のように突起を有さない、銅製の平板である。
[実施例1]
参考例1で得られた強化繊維束1を、AFP装置によって静電気的引力を用いた機構によって強化繊維束を吸着、保持することができるテーブル上に一方向に引き揃えて配置させ、強化繊維束層(強化繊維束層1~8)を作製した。それぞれの形状について、製作した強化繊維束層を表1に示す。単純要素型での強化繊維積層シートの賦形性の評価に用いたものは、300mm×300mmの強化繊維束層1および2、モデル形状型1での強化繊維積層シートの賦形性の評価に用いたものは、500mm×200mmの強化繊維束層3および4、モデル形状型2での強化繊維積層シートの賦形性の評価に用いたものは、モデル形状型2に対応した1.8m×1.3mの強化繊維束層5~8である。
前記の強化繊維束層1を1層テーブル上に配置した後、1層目の強化繊維束の繊維配向角と90°をなすように配置させた2層目の強化繊維束層2を配置した。
(モデル形状型1での強化繊維積層シートの賦形性の評価)
前記の強化繊維束層3を1層テーブル上に配置した後、1層目の強化繊維束の繊維配向角と90°をなすように配置させた2層目の強化繊維束層4を配置した。
(モデル形状型1での繊維強化樹脂成形体の成形性の評価)
モデル形状型1上に強化繊維積層シート(1B)を4枚積層し、賦形してプリフォームを得た。そして、得られたプリフォームを130℃に加熱した型に配置し、型締めした後に、4MPaで型を加圧し、キャビティ内を略真空とした後に、参考例3のマトリックス樹脂を0.1MPaの注入圧力で注入した。注入後は、型の温度と圧力を保持し、マトリックス樹脂を十分に硬化させて、型を開き、成形体を脱型して繊維強化樹脂成形体(1C)を得た。
(モデル形状型2での強化繊維積層シートの賦形性の評価)
前記の強化繊維束層5を1層テーブル上に配置した後、1層目の強化繊維束の繊維配向角と90°をなすように配置させた2層目の強化繊維束層6を配置した。
(モデル形状型2での繊維強化樹脂成形体の成形性の評価)
強化繊維積層シート(1D)と同様に、前記の強化繊維束層7を1層テーブル上に配置した後、1層目の強化繊維束の繊維配向角と90°をなすように配置させた2層目の強化繊維束8を配置した点のみが異なる強化繊維積層シート(1D-2)を製作し、実形状モデル型2上に強化繊維積層シート(1D、1D-2)を対称積層となるように4枚積層し、賦形してプリフォームを得た。そして、得られたプリフォームを130℃に加熱した型に配置し、型締めした後に、4MPaで型を加圧し、キャビティ内を略真空とした後に、参考例3のマトリックス樹脂を0.1MPaの注入圧力で注入した。注入後は、型の温度と圧力を保持し、マトリックス樹脂を十分に硬化させて、型を開き、成形体を脱型して繊維強化樹脂成形体(1E)を得た。
[実施例2]
強化繊維束層の固着に用いる圧子板を圧子板2(固着部分の固着領域に対する面積割合:10.7%)に変えた以外は、実施例1と同様にして強化繊維積層シート(2A)、(2B)、(2D)、および、繊維強化樹脂成形体(2C)、(2E)を得た。
[実施例3]
強化繊維束層の固着に用いる圧子板を圧子板3(固着部分の固着領域に対する面積割合:20%)に変えた以外は、実施例1と同様にして強化繊維積層シート(3A)、(3B)、(3D)、および、繊維強化樹脂成形体(3C)、(3E)を得た。
[実施例4]
強化繊維束層の固着に用いる圧子板を圧子板4(固着部分の固着領域に対する面積割合:6%)に変えた以外は、実施例1と同様にして強化繊維積層シート(4A)、(4B)、(4D)、および、繊維強化樹脂成形体(4C)、(4E)を得た。
[実施例5]
強化繊維束層の固着に用いる圧子板を圧子板5(固着部分の固着領域に対する面積割合:4%)に変えた以外は、実施例1と同様にして強化繊維積層シート(5A)、(5B)、(5D)、および、繊維強化樹脂成形体(5C)、(5E)を得た。
[実施例6]
強化繊維束層の固着に用いる圧子板を圧子板6(固着部分の固着領域に対する面積割合:5%)に変えた以外は、実施例1と同様にして強化繊維積層シート(6A)、(6B)、(6D)、および、繊維強化樹脂成形体(6C)、(6E)を得た。
[実施例7]
固着領域を以下の(R1)、(R2)の2箇所となるようにした以外は、実施例1と同様にして強化繊維積層シート(7A)を得た。
(R1)強化繊維積層シートの外周から20mm以内の範囲
(R2)強化繊維積層シートの中心と、100mm×100mmの正方形の重心が一致する場所に配置されており、かつ、各辺が強化繊維積層シートの外周と平行になるような、正方形の範囲
なお、この場合の固着領域に対する面積割合は、36%である。
[比較例1]
強化繊維束層の固着に用いる圧子板を平板1(固着部分:シート全体(面積はシート面積と同じ(いずれも100mm2以上))固着部分の固着領域に対する面積割合:100%)に変えた以外は、実施例1と同様にして強化繊維積層シート(8A)、(8B)、(8D)を得た。
[比較例2]
強化繊維束層の固着に用いる圧子板を圧子板7(固着部分の固着領域に対する面積割合:79%)に変えた以外は、実施例1と同様にして強化繊維積層シート(9A)、(9B)、(9D)を得た。
[比較例3]
固着領域を以下の(R1)の1箇所となるようにした以外は、実施例1と同様にして強化繊維積層シート(10A)を得た。
(R1)強化繊維積層シートの外周から20mm以内の範囲
なお、この場合の固着領域に対する面積割合は、25%である。
[比較例4]
実施例1における固着材の付与工程において、付与量を2倍に変え、固着素子の固着部分に対する面積割合を85%に変えた以外は、実施例1と同様にして強化繊維積層シート(11A)、(11B)、(11D)を得た。
102、103、302、303 強化繊維束層
104、204、304、502 固着部分
105、305、501 固着素子
106、306、503 固着領域
107、504 固着材
307 枠状の固着領域
208 格子
401、601 第1の強化繊維束層配置工程
402、603 第2の強化繊維束層配置工程
403、604 シート化工程
505 第1の強化繊維束層
602 固着材配置工程
Claims (17)
- 一方向に引き揃えられている複数の強化繊維束からなり、同一層内の強化繊維束間に直接的な拘束力のない第1、第2の強化繊維束層が、互いに繊維配向が異なるように配置されてなり、かつ、前記第1、第2の強化繊維束層の層間が固着素子によって互いに固着されていることで、前記第1、第2の強化繊維束層が一体化されてなる強化繊維積層シートであって、以下の条件(i)かつ(ii)を満たす強化繊維積層シート。
(i)前記第1、第2の強化繊維束層の固着面において、固着素子を少なくとも1つ含む固着部分を有し、前記固着部分の平均面積S1が100mm2以下である
(ii)前記固着部分内において、前記固着素子の前記固着部分に対する面積割合が、0.1%以上80%以下である - 一方向に引き揃えられている複数の強化繊維束からなり、同一層内の強化繊維束間に直接的な拘束力のない第1、第2の強化繊維束層が、互いに繊維配向が異なるように配置されてなり、かつ、前記第1、第2の強化繊維束層の層間が固着素子によって互いに固着されていることで、前記第1、第2の強化繊維束層が一体化されてなる強化繊維積層シートであって、以下の条件(i)かつ(iii)を満たす強化繊維積層シート。
(i)前記第1、第2の強化繊維束層の固着面において、固着素子を少なくとも1つ含む固着部分を有し、前記固着部分の平均面積S1が100mm2以下である
(iii)前記固着素子が、粒子状もしくは繊維集合体状の固着材が溶融したものである - 前記第1、第2の強化繊維束層の固着面において、前記固着部分を少なくとも1箇所含む固着領域を有し、前記強化繊維積層シートに対する前記固着領域の面積割合が30%以上100%以下である請求項1または2に記載の強化繊維積層シート。
- 固着領域に対する固着部分の面積割合が1%以上50%以下である固着領域を少なくとも一つ有する、請求項1~3のいずれかに記載の強化繊維積層シート。
- 請求項1~4のいずれかに記載の強化繊維積層シートであって、さらに以下の条件(iv)を満たす、強化繊維積層シート。
(iv)前記固着部分の中心が多角形状の格子状に配置される前記固着領域を有すること - 請求項1~5のいずれかに記載の強化繊維積層シートであって、さらに以下の条件(v)を満たす、強化繊維積層シート。
(v)前記固着部分の中心が1辺の長さL1(mm)の正多角形状の格子状に配置され、前記長さL1(mm)が以下の式(1)を満たすこと
1≦L1≦50 (1) - 請求項1~6のいずれかに記載の強化繊維積層シートとマトリックス樹脂とからなる繊維強化樹脂成形体。
- 以下の工程(a)~(c)を有する、強化繊維積層シートの製造方法。
(a)複数の強化繊維束をテーブル上に一方向に引き揃えて配置し、同一層内の強化繊維束間に直接的な拘束力のない第1の強化繊維束層を得る、第1の強化繊維束層配置工程
(b)前記第1の強化繊維束層の上に、さらに複数の強化繊維束を前記第1の強化繊維束層の繊維方向とは異なる方向に、一方向に引き揃えて配置し、同一層内の強化繊維束間に直接的な拘束力のない第2の強化繊維束層を得て強化繊維積層体とする、第2の強化繊維束層配置工程
(c)前記強化繊維積層体と接触する面に有する突起を介し、部分的に前記強化繊維積層体を加熱および/または加圧し、前記第1の強化繊維束層と前記第2の強化繊維束層の層間の固着材を溶融させるシート化機構を用いて、以下の条件(i)かつ(ii)を満たす強化繊維積層シートを得る、シート化工程
(i)前記第1、第2の強化繊維束層の固着面において、固着素子を少なくとも1つ含む固着部分を有し、前記固着部分の平均面積S1が100mm2以下である
(ii)前記固着部分内において、前記固着素子の前記固着部分に対する面積割合が、0.1%以上80%以下である - 以下の工程(a)~(c)を有する、強化繊維積層シートの製造方法。
(a)複数の強化繊維束をテーブル上に一方向に引き揃えて配置し、同一層内の強化繊維束間に直接的な拘束力のない第1の強化繊維束層を得る、第1の強化繊維束層配置工程
(b)前記第1の強化繊維束層の上に、さらに複数の強化繊維束を前記第1の強化繊維束層の繊維方向とは異なる方向に、一方向に引き揃えて配置し、同一層内の強化繊維束間に直接的な拘束力のない第2の強化繊維束層を得て強化繊維積層体とする、第2の強化繊維束層配置工程
(c)前記強化繊維積層体と接触する面に有する突起を介し、部分的に前記強化繊維積層体を加熱および/または加圧し、前記第1の強化繊維束層と前記第2の強化繊維束層の層間の固着材を溶融させるシート化機構を用いて、以下の条件(i)かつ(iii)を満たす強化繊維積層シートを得る、シート化工程
(i)前記第1、第2の強化繊維束層の固着面において、固着素子を少なくとも1つ含む固着部分を有し、前記固着部分の平均面積S1が100mm2以下である。
(iii)前記固着素子が、粒子状もしくは繊維集合体状の固着材が溶融したものである。 - 前記工程(a)と(b)の間に、以下の工程(a1)を有する、請求項8または9に記載の強化繊維積層シートの製造方法。
(a1)前記第1の強化繊維束層上に固着材を配置する、固着材配置工程 - 前記工程(a)および/または前記工程(b)における強化繊維束が、固着材が付着した強化繊維束である、請求項8~10のいずれかに記載の強化繊維積層シートの製造方法。
- 前記第1、第2の強化繊維束層の固着面において、前記固着部分を少なくとも1つ含む固着領域を有し、前記強化繊維積層シートに対する前記固着領域の面積割合が30%以上100%以下である、請求項8~11のいずれかに記載の強化繊維積層シートの製造方法。
- 前記固着領域に対する固着部分の面積割合が1%以上50%以下である固着領域を少なくとも一つ有する、請求項12に記載の強化繊維積層シートの製造方法。
- 請求項8~13のいずれかに記載の強化繊維積層シートの製造方法であって、さらに以下の条件(iv)を満たす、強化繊維積層シートの製造方法。
(iv)前記固着部分の中心が多角形状の格子状に配置される前記固着領域を有すること - 請求項8~14のいずれかに記載の強化繊維積層シートの製造方法であって、さらに以下の条件(v)を満たす、強化繊維積層シートの製造方法。
(v)前記固着部分の中心が1辺の長さL1(mm)の正多角形状の格子状に配置され、前記長さL1(mm)が以下の式(1)を満たすこと
1≦L1≦50 (1) - 前記工程(c)と同時か、工程(c)の後に、以下の工程(d)を有する、請求項8~15のいずれかに記載の強化繊維積層シートの製造方法。
(d)前記強化繊維積層シートの端部の少なくとも一部において固着枠を形成する、固着枠形成工程 - 前記テーブルが前記強化繊維束を吸着し、保持する手段を有し、前記手段が静電気的引力を用いた機構、および/または、空気の流動によって発生する引力を用いた機構を有する、請求項8~16のいずれかに記載の強化繊維積層シートの製造方法。
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2018133697A RU2735685C2 (ru) | 2016-03-31 | 2017-03-29 | Многослойный лист армирующих волокон, армированное волокнами полимерное формованное изделие и способ получения многослойного листа армирующих волокон |
JP2018509335A JP6973378B2 (ja) | 2016-03-31 | 2017-03-29 | 強化繊維積層シートおよび繊維強化樹脂成形体ならびに強化繊維積層シートの製造方法 |
CN201780004729.8A CN108367531B (zh) | 2016-03-31 | 2017-03-29 | 增强纤维层合片材以及纤维增强树脂成型体以及增强纤维层合片材的制造方法 |
CA3008119A CA3008119C (en) | 2016-03-31 | 2017-03-29 | Reinforced fiber laminate sheet, fiber-reinforced resin molded body, and method for manufacturing reinforced fiber laminate sheet |
US16/081,113 US20190070829A1 (en) | 2016-03-31 | 2017-03-29 | Reinforced fiber laminate sheet, fiber-reinforced resin molded body, and method of manufacturing reinforced fiber laminate sheet |
KR1020187024418A KR102329442B1 (ko) | 2016-03-31 | 2017-03-29 | 강화 섬유 적층 시트 및 섬유 강화 수지 성형체 및 강화 섬유 적층 시트의 제조 방법 |
AU2017244829A AU2017244829B2 (en) | 2016-03-31 | 2017-03-29 | Reinforced fiber laminate sheet, fiber-reinforced resin molded body, and method for manufacturing reinforced fiber laminate sheet |
BR112018014795-8A BR112018014795B1 (pt) | 2016-03-31 | 2017-03-29 | Folha laminada de fibras reforçadas, corpo moldado de resina reforçada com fibras, e método para a fabricação de folha laminada de fibras reforçadas |
EP17775219.3A EP3437851A4 (en) | 2016-03-31 | 2017-03-29 | REINFORCED FIBER LAMINATE LAYER, FIBER-REINFORCED RESIN MOLD BODY AND METHOD FOR PRODUCING A REINFORCED FIBER LAMINATE LAYER |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016070827 | 2016-03-31 | ||
JP2016-070827 | 2016-03-31 | ||
JP2016070828 | 2016-03-31 | ||
JP2016-070828 | 2016-03-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2017170685A1 true WO2017170685A1 (ja) | 2017-10-05 |
Family
ID=59965830
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2017/012881 WO2017170685A1 (ja) | 2016-03-31 | 2017-03-29 | 強化繊維積層シートおよび繊維強化樹脂成形体ならびに強化繊維積層シートの製造方法 |
Country Status (10)
Country | Link |
---|---|
US (1) | US20190070829A1 (ja) |
EP (1) | EP3437851A4 (ja) |
JP (1) | JP6973378B2 (ja) |
KR (1) | KR102329442B1 (ja) |
CN (1) | CN108367531B (ja) |
AU (1) | AU2017244829B2 (ja) |
BR (1) | BR112018014795B1 (ja) |
CA (1) | CA3008119C (ja) |
RU (1) | RU2735685C2 (ja) |
WO (1) | WO2017170685A1 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7134924B2 (ja) * | 2019-07-02 | 2022-09-12 | 本田技研工業株式会社 | 樹脂挙動解析装置、樹脂挙動解析方法および樹脂挙動解析プログラム |
EP4023434A4 (en) * | 2019-10-01 | 2022-09-14 | Nippon Steel Corporation | CURVED PANEL ELEMENT |
KR102299474B1 (ko) * | 2020-03-19 | 2021-09-07 | 울산과학기술원 | 섬유복합재의 제조방법 |
CN112549694B (zh) * | 2020-12-21 | 2023-05-26 | 赵培翔 | 一种宽幅纤维网增强塑料叠层复合片材 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005022396A (ja) * | 2002-11-14 | 2005-01-27 | Toray Ind Inc | 強化繊維基材、複合材料およびそれらの製造方法 |
JP2006192745A (ja) * | 2005-01-14 | 2006-07-27 | Toray Ind Inc | 強化繊維基材、プリフォーム、繊維強化樹脂成形体およびその製造方法 |
JP2007276453A (ja) * | 2006-03-15 | 2007-10-25 | Toray Ind Inc | 強化繊維基材積層体およびその製造方法 |
JP2008132650A (ja) * | 2006-11-28 | 2008-06-12 | Toray Ind Inc | 強化繊維積層体およびその製造方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2705448T3 (es) * | 2006-02-28 | 2019-03-25 | Toray Industries | Proceso para la producción de laminados de material base de fibra de refuerzo |
EP2233625B1 (en) * | 2008-01-11 | 2019-03-13 | Toray Industries, Inc. | Process for producing reinforcing fiber base of curved shape |
JP2009235182A (ja) | 2008-03-26 | 2009-10-15 | Toho Tenax Co Ltd | プリフォーム用基材とその製造方法 |
CN104245803A (zh) * | 2012-03-19 | 2014-12-24 | 东丽株式会社 | 碳纤维预成型体、碳纤维增强塑料、碳纤维预成型体的制造方法 |
JP6132186B2 (ja) | 2013-02-19 | 2017-05-24 | 東レ株式会社 | プリフォーム作製用基材の製造方法と装置、および、プリフォームと繊維強化プラスチックの製造方法 |
DE102015001965A1 (de) * | 2014-02-26 | 2015-08-27 | Kiefel Gmbh | Verfahren zum Versehen einer Kaschierfolie mit Klebstoff, Verfahren zum Auftragen eines Hotmelts, Verwendung, Anlage zum Kaschieren und Verfahren zum Umrüsten einer solchen Anlage |
-
2017
- 2017-03-29 CA CA3008119A patent/CA3008119C/en active Active
- 2017-03-29 CN CN201780004729.8A patent/CN108367531B/zh active Active
- 2017-03-29 BR BR112018014795-8A patent/BR112018014795B1/pt active IP Right Grant
- 2017-03-29 JP JP2018509335A patent/JP6973378B2/ja active Active
- 2017-03-29 EP EP17775219.3A patent/EP3437851A4/en active Pending
- 2017-03-29 US US16/081,113 patent/US20190070829A1/en not_active Abandoned
- 2017-03-29 RU RU2018133697A patent/RU2735685C2/ru active
- 2017-03-29 WO PCT/JP2017/012881 patent/WO2017170685A1/ja unknown
- 2017-03-29 AU AU2017244829A patent/AU2017244829B2/en active Active
- 2017-03-29 KR KR1020187024418A patent/KR102329442B1/ko active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005022396A (ja) * | 2002-11-14 | 2005-01-27 | Toray Ind Inc | 強化繊維基材、複合材料およびそれらの製造方法 |
JP2006192745A (ja) * | 2005-01-14 | 2006-07-27 | Toray Ind Inc | 強化繊維基材、プリフォーム、繊維強化樹脂成形体およびその製造方法 |
JP2007276453A (ja) * | 2006-03-15 | 2007-10-25 | Toray Ind Inc | 強化繊維基材積層体およびその製造方法 |
JP2008132650A (ja) * | 2006-11-28 | 2008-06-12 | Toray Ind Inc | 強化繊維積層体およびその製造方法 |
Non-Patent Citations (1)
Title |
---|
See also references of EP3437851A4 * |
Also Published As
Publication number | Publication date |
---|---|
KR102329442B1 (ko) | 2021-11-22 |
CN108367531B (zh) | 2020-10-09 |
KR20180131535A (ko) | 2018-12-10 |
US20190070829A1 (en) | 2019-03-07 |
CA3008119C (en) | 2024-02-13 |
BR112018014795A2 (ja) | 2018-12-18 |
EP3437851A1 (en) | 2019-02-06 |
AU2017244829B2 (en) | 2020-11-26 |
JPWO2017170685A1 (ja) | 2019-02-14 |
RU2018133697A (ru) | 2020-04-30 |
BR112018014795B1 (pt) | 2022-11-16 |
RU2018133697A3 (ja) | 2020-05-28 |
RU2735685C2 (ru) | 2020-11-05 |
JP6973378B2 (ja) | 2021-11-24 |
CA3008119A1 (en) | 2017-10-05 |
AU2017244829A1 (en) | 2018-06-28 |
CN108367531A (zh) | 2018-08-03 |
EP3437851A4 (en) | 2019-12-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2017170685A1 (ja) | 強化繊維積層シートおよび繊維強化樹脂成形体ならびに強化繊維積層シートの製造方法 | |
US11787150B2 (en) | Prepreg sheet and manufacturing method therefor, fiber-reinforced composite material molded article and manufacturing method therefor, and method for manufacturing preform | |
JP5029072B2 (ja) | 強化繊維基材積層体およびその製造方法 | |
JP7087337B2 (ja) | 強化繊維基材、強化繊維積層体および繊維強化樹脂 | |
US20220040935A1 (en) | Method for manufacturing molded article of fiber-reinforced composite material, reinforcing fiber substrate and molded article of fiber-reinforced composite material | |
JP2010214704A (ja) | 極細繊維からなるバインダーを用いたプリフォーム用基材とその製造方法 | |
JP2006103305A (ja) | プリフォーム用基材 | |
TW202112917A (zh) | 纖維強化樹脂基材、一體成形品及纖維強化樹脂基材之製造方法 | |
EP4140710A1 (en) | Reinforced fiber tape material and production method therefor, fiber reinforced resin | |
JP7467840B2 (ja) | 強化繊維基材、強化繊維積層体および繊維強化樹脂 | |
CN116194278A (zh) | 纤维增强塑料及纤维增强塑料的制造方法 | |
CN114616090B (zh) | 碳纤维带材料、以及使用其的增强纤维层叠体及成型体 | |
US20240059046A1 (en) | Reinforcing fiber base material for resin transfer molding, method of producing same, reinforcing fiber laminate for resin transfer molding, and fiber-reinforced plastic | |
JP2022068616A (ja) | 樹脂注入成形用強化繊維基材、樹脂注入成型用強化繊維積層体および繊維強化樹脂 | |
JP2023050344A (ja) | 樹脂注入成形用強化繊維基材 | |
JP2022137447A (ja) | 炭素繊維テープ材およびそれを用いた強化繊維積層体、ならびに成形体 | |
TW202239828A (zh) | 纖維強化塑膠及其製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ENP | Entry into the national phase |
Ref document number: 2018509335 Country of ref document: JP Kind code of ref document: A |
|
ENP | Entry into the national phase |
Ref document number: 3008119 Country of ref document: CA |
|
ENP | Entry into the national phase |
Ref document number: 2017244829 Country of ref document: AU Date of ref document: 20170329 Kind code of ref document: A |
|
REG | Reference to national code |
Ref country code: BR Ref legal event code: B01A Ref document number: 112018014795 Country of ref document: BR |
|
ENP | Entry into the national phase |
Ref document number: 20187024418 Country of ref document: KR Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 17775219 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 112018014795 Country of ref document: BR Kind code of ref document: A2 Effective date: 20180719 |