WO2022107709A1 - 繊維強化樹脂基材、プリフォーム、一体化成形品および繊維強化樹脂基材の製造方法 - Google Patents
繊維強化樹脂基材、プリフォーム、一体化成形品および繊維強化樹脂基材の製造方法 Download PDFInfo
- Publication number
- WO2022107709A1 WO2022107709A1 PCT/JP2021/041849 JP2021041849W WO2022107709A1 WO 2022107709 A1 WO2022107709 A1 WO 2022107709A1 JP 2021041849 W JP2021041849 W JP 2021041849W WO 2022107709 A1 WO2022107709 A1 WO 2022107709A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- thermoplastic resin
- fiber
- base material
- resin
- reinforced
- Prior art date
Links
- 229920005989 resin Polymers 0.000 title claims abstract description 212
- 239000011347 resin Substances 0.000 title claims abstract description 212
- 238000004519 manufacturing process Methods 0.000 title claims description 16
- 239000000758 substrate Substances 0.000 title abstract description 9
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 343
- 239000000835 fiber Substances 0.000 claims abstract description 87
- 238000002844 melting Methods 0.000 claims abstract description 52
- 230000008018 melting Effects 0.000 claims abstract description 52
- 229920006038 crystalline resin Polymers 0.000 claims abstract description 5
- 239000010410 layer Substances 0.000 claims description 134
- 239000000463 material Substances 0.000 claims description 129
- 239000012783 reinforcing fiber Substances 0.000 claims description 116
- 238000000034 method Methods 0.000 claims description 68
- 230000009477 glass transition Effects 0.000 claims description 16
- 239000011229 interlayer Substances 0.000 claims description 16
- 238000005979 thermal decomposition reaction Methods 0.000 claims description 15
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 12
- -1 ether ketone Chemical class 0.000 claims description 9
- 239000004734 Polyphenylene sulfide Substances 0.000 claims description 8
- 229920000069 polyphenylene sulfide Polymers 0.000 claims description 8
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 7
- 229920002530 polyetherether ketone Polymers 0.000 claims description 7
- 229920001652 poly(etherketoneketone) Polymers 0.000 claims description 6
- 229920000412 polyarylene Polymers 0.000 claims description 5
- 230000002787 reinforcement Effects 0.000 abstract 2
- 238000012360 testing method Methods 0.000 description 24
- 239000004918 carbon fiber reinforced polymer Substances 0.000 description 17
- 239000008188 pellet Substances 0.000 description 16
- 238000010438 heat treatment Methods 0.000 description 14
- 238000005304 joining Methods 0.000 description 14
- 238000000465 moulding Methods 0.000 description 13
- 229920000049 Carbon (fiber) Polymers 0.000 description 12
- 239000004917 carbon fiber Substances 0.000 description 12
- 238000011156 evaluation Methods 0.000 description 10
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 10
- 239000002904 solvent Substances 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 9
- 150000001875 compounds Chemical class 0.000 description 9
- 239000000126 substance Substances 0.000 description 8
- 238000003466 welding Methods 0.000 description 8
- 239000000853 adhesive Substances 0.000 description 7
- 230000001070 adhesive effect Effects 0.000 description 7
- 238000001746 injection moulding Methods 0.000 description 7
- 239000012298 atmosphere Substances 0.000 description 6
- 238000004898 kneading Methods 0.000 description 6
- 238000005259 measurement Methods 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 5
- 239000003733 fiber-reinforced composite Substances 0.000 description 5
- 239000011159 matrix material Substances 0.000 description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 230000001747 exhibiting effect Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000004952 Polyamide Substances 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 3
- 229920003235 aromatic polyamide Polymers 0.000 description 3
- 239000010953 base metal Substances 0.000 description 3
- 238000012669 compression test Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 229920001643 poly(ether ketone) Polymers 0.000 description 3
- 229920002647 polyamide Polymers 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 229920001187 thermosetting polymer Polymers 0.000 description 3
- 239000011800 void material Substances 0.000 description 3
- AOBIOSPNXBMOAT-UHFFFAOYSA-N 2-[2-(oxiran-2-ylmethoxy)ethoxymethyl]oxirane Chemical compound C1OC1COCCOCC1CO1 AOBIOSPNXBMOAT-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 229920002873 Polyethylenimine Polymers 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 239000000654 additive Substances 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
- 230000008859 change Effects 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 239000007822 coupling agent Substances 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001938 differential scanning calorimetry curve Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 239000008213 purified water Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000012756 surface treatment agent Substances 0.000 description 2
- 238000009864 tensile test Methods 0.000 description 2
- UWFRVQVNYNPBEF-UHFFFAOYSA-N 1-(2,4-dimethylphenyl)propan-1-one Chemical compound CCC(=O)C1=CC=C(C)C=C1C UWFRVQVNYNPBEF-UHFFFAOYSA-N 0.000 description 1
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 1
- WPSWDCBWMRJJED-UHFFFAOYSA-N 4-[2-(4-hydroxyphenyl)propan-2-yl]phenol;oxirane Chemical compound C1CO1.C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 WPSWDCBWMRJJED-UHFFFAOYSA-N 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical class C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- 101150072086 FH12 gene Proteins 0.000 description 1
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 240000000220 Panda oleosa Species 0.000 description 1
- 235000016496 Panda oleosa Nutrition 0.000 description 1
- 229930182556 Polyacetal Natural products 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 229920000265 Polyparaphenylene Polymers 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- YSMRWXYRXBRSND-UHFFFAOYSA-N TOTP Chemical compound CC1=CC=CC=C1OP(=O)(OC=1C(=CC=CC=1)C)OC1=CC=CC=C1C YSMRWXYRXBRSND-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000003522 acrylic cement Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 125000002723 alicyclic group Chemical group 0.000 description 1
- 125000001931 aliphatic group Chemical group 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
- 238000004458 analytical method Methods 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000003484 crystal nucleating agent Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 239000002781 deodorant agent Substances 0.000 description 1
- GYZLOYUZLJXAJU-UHFFFAOYSA-N diglycidyl ether Chemical compound C1OC1COCC1CO1 GYZLOYUZLJXAJU-UHFFFAOYSA-N 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 239000011151 fibre-reinforced plastic Substances 0.000 description 1
- 238000009730 filament winding Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 238000009787 hand lay-up Methods 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 239000000077 insect repellent Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000007500 overflow downdraw method Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000000088 plastic resin Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920000083 poly(allylamine) Polymers 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920000223 polyglycerol Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 229920006012 semi-aromatic polyamide Polymers 0.000 description 1
- 238000004904 shortening Methods 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
- 238000004513 sizing Methods 0.000 description 1
- 239000000600 sorbitol Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 238000001721 transfer moulding Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Images
Classifications
-
- 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
- C08J5/0405—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres
- C08J5/042—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres with carbon 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
-
- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
- B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
-
- 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
- B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
-
- 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
- C08J5/06—Reinforcing macromolecular compounds with loose or coherent fibrous material using pretreated fibrous 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
- 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
- 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
- B32B2260/04—Impregnation, embedding, or binder material
- B32B2260/046—Synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/106—Carbon fibres, e.g. graphite 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/538—Roughness
-
- 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
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/54—Yield strength; Tensile strength
-
- 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
- B32B2307/70—Other properties
- B32B2307/704—Crystalline
-
- 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
- B32B2307/70—Other properties
- B32B2307/748—Releasability
-
- 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
- C08J2365/00—Characterised by the use of macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain; Derivatives of such polymers
-
- 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
- C08J2371/00—Characterised by the use of polyethers obtained by reactions forming an ether link in the main chain; Derivatives of such polymers
-
- 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
- C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
- C08J2377/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
-
- 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
- C08J2381/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur with or without nitrogen, oxygen, or carbon only; Polysulfones; Derivatives of such polymers
- C08J2381/04—Polysulfides
Definitions
- the present invention relates to a fiber-reinforced resin base material in which a thermoplastic resin is impregnated into a reinforcing fiber, a preform and an integrally molded product using the same, and a method for manufacturing a fiber-reinforced resin base material.
- a fiber-reinforced composite material that uses a thermosetting resin or a thermoplastic resin as a matrix and is combined with reinforcing fibers such as carbon fiber and glass fiber is lightweight but has excellent mechanical properties such as strength and rigidity.
- -It is applied to many fields such as space, automobiles, railroad vehicles, ships, civil engineering and construction, and sporting goods.
- these fiber-reinforced composite materials are not suitable for manufacturing parts and structures having complicated shapes in a single molding process, and in such applications, a member made of a fiber-reinforced composite material is produced. Then, a step of integrating with another member is required. At this time, resins having different characteristics may be combined as needed.
- a joining method using mechanical joining such as bolts, rivets, and screws, and a joining method using an adhesive are used. Since the mechanical joining method requires a process of pre-processing the joint part such as drilling, it leads to a long manufacturing process and an increase in manufacturing cost, and there is a problem that the material strength is lowered due to drilling. there were.
- the bonding method using an adhesive requires a bonding process and a curing process including preparation of the adhesive and application of the adhesive, which leads to a long manufacturing process and sufficient reliability in terms of adhesive strength. There was a problem that I could't get enough satisfaction.
- the fiber-reinforced composite material using a thermoplastic resin as a matrix can be applied with a method of joining members by a heat welding method, so that the time required for joining between members may be shortened.
- a heat welding method there is a method of obtaining a molded product made of different types of thermoplastic resins such as two-color molding, but in the case of a method of selecting and combining highly compatible resins or a combination of low compatibility resins. , Integration by shape design such as fitting is the mainstream, and there is a problem that the degree of design freedom is low.
- Patent Document 1 describes a technique for joining members using different thermoplastic resins by using a fiber reinforced resin sheet in which a nonwoven fabric composed of reinforcing fibers is impregnated with a plurality of different thermoplastic resins. It has been disclosed.
- An object of the present invention is to provide a member using different thermoplastic resins, particularly a fiber reinforced resin base material useful for firmly joining different kinds of fiber reinforced resin members using different thermoplastic resins as matrix resins. There is something in it.
- the present invention is a fiber-reinforced resin base material in which a continuous reinforcing fiber is impregnated with a thermoplastic resin (A) and a thermoplastic resin (B), and is made of the thermoplastic resin (A) on one surface.
- the exposed thermoplastic resin (A) layer and the thermoplastic resin (B) layer made of the thermoplastic resin (B) and exposed on the other surface form a boundary region, and at least a part of the continuous reinforcing fibers.
- Is a fiber-reinforced resin base material that exists across the boundary region and is a crystalline resin in which both the thermoplastic resin (A) and the thermoplastic resin (B) have a melting point of 200 ° C. or higher.
- thermoplastic resin (A) was impregnated from one surface of the continuous reinforcing fiber sheet to obtain a semipreg in which the thermoplastic resin (A) layer was exposed on one surface and the continuous reinforcing fiber sheet was exposed on the other surface. Later, the thermoplastic resin (B) is impregnated from the other side of the semipreg, or the thermoplastic resin (B) is impregnated from one side of the continuous reinforcing fiber sheet, so that the thermoplastic resin (B) layer is formed.
- a fiber-reinforced resin characterized by impregnating a thermoplastic resin (A) from the other surface of the semipreg after obtaining a semipreg exposed on one surface and the continuously reinforcing fiber sheet exposed on the other surface. This is a method for manufacturing a base material.
- FIG. 1 assists in explaining a method for measuring the interlayer shear strength between the thermoplastic resin (A) layer and the thermoplastic resin (B) layer of the fiber reinforced resin base material according to the present invention. Reinforcing fibers are omitted.
- FIG. 2 is a schematic view of the fiber-reinforced resin base material according to the present invention, and assists in explaining the method for measuring the roughness average length RSm and the average height Rc of the fiber-reinforced resin base material.
- FIG. 3 is a schematic view of an observation cross section perpendicular to the plane of the fiber reinforced resin substrate according to the present invention, (a) is an observation cross section for observing the radial direction of the reinforcing fiber, and (b) is the length direction of the reinforcing fiber.
- FIG. 4 is a schematic view of an observation cross section perpendicular to the plane of the fiber-reinforced resin substrate according to the present invention, and assists in explaining a method for measuring an average roughness length RSm and an average roughness height Rc. It is a schematic diagram of the manufacturing method of the joint strength test piece of the integrated molded product which concerns on this invention.
- the fiber reinforced resin base material according to the present invention contains at least continuous reinforced fibers, a thermoplastic resin (A) and a thermoplastic resin (B).
- the reinforcing fiber used in the present invention examples include glass fiber, carbon fiber, metal fiber, aromatic polyamide fiber, polyaramid fiber, alumina fiber, silicon carbide fiber, boron fiber, and genbuiwa fiber. These may be used alone or in combination of two or more as appropriate.
- carbon fiber is preferably used because it has a small specific gravity, high strength, and a high elastic modulus.
- Commercially available carbon fiber products include "Torayca (registered trademark)" T800G-24K, “Torayca (registered trademark)” T800S-24K, “Torayca (registered trademark)” T700G-24K, and “Torayca (registered trademark)” T700S-. Examples thereof include 24K, “Treca (registered trademark)” T300-3K, and “Treca (registered trademark)” T1100G-24K (all manufactured by Toray Industries, Inc.).
- the reinforcing fiber may be one that has been surface-treated.
- the surface treatment includes a metal adhesion treatment, a coupling agent treatment, a sizing agent treatment, an additive adhesion treatment, and the like.
- a reinforcing fiber including the surface treatment agent in the case of a reinforcing fiber to which a surface treatment agent is attached, it is referred to as a reinforcing fiber including the surface treatment agent.
- these reinforcing fibers having a surface free energy of 10 to 50 mJ / m 2 as measured by the Wilhelmy method.
- the reinforcing fibers exhibit high affinity with the thermoplastic resins (A) and (B), and the boundary between the thermoplastic resin (A) layer and the (B) layer in which the reinforcing fibers are straddled. It develops high bonding strength in the region, especially at the interface.
- the surface free energy of the reinforcing fiber is preferably 15 to 40 mJ / m 2 , more preferably 18 to 35 mJ / m 2 .
- the affinity between the reinforcing fiber and the thermoplastic resin (A) or (B) becomes low, and the bonding strength becomes insufficient. Further, when it exceeds 50 mJ / m 2 , the reinforcing fibers aggregate with each other, resulting in poor dispersion in the fiber-reinforced resin base material, and the variation in bonding strength becomes large.
- the surface is oxidized and the amount of oxygen-containing functional groups such as carboxyl groups and hydroxyl groups is adjusted and controlled, or a simple substance or a plurality of compounds are attached to the surface. There is a way to control it.
- a plurality of compounds are attached to the surface, those having high surface free energy and those having low surface free energy may be mixed and attached.
- the surface free energy can be calculated by measuring the contact angles of the reinforcing fiber and three kinds of solvents (purified water, ethylene glycol, tricresyl phosphate), respectively, and then using the approximate formula of Owens, which will be described in detail later. It can be obtained by the method described in the examples.
- the fiber reinforced resin base material of the present invention contains reinforced fibers in a continuous form. That is, the reinforcing fibers can exist in the form of a fiber bundle in which the reinforcing fibers of the long fibers are arranged in one direction, a laminate of the fiber bundles, a woven fabric, or the like, and are arranged in a tape shape or a sheet shape.
- the reinforcing fibers having these forms are collectively referred to as continuous reinforcing fibers.
- the reinforcing fiber bundle it may be composed of a plurality of fibers having the same form, or may be composed of a plurality of fibers having different forms.
- the number of reinforcing fibers constituting one reinforcing fiber bundle is usually 300 to 60,000, but is preferably 300 to 48,000, more preferably 1,000, in consideration of the production of the base material. ⁇ 24,000.
- the strand tensile strength of the reinforcing fiber measured in accordance with the resin impregnated strand test method of JIS R7608 (2007) is 5.5 GPa or more, the mechanical properties such as the tensile strength of the fiber reinforced resin base material itself are improved.
- excellent interlayer shear strength between the thermoplastic resin (A) layer and the (B) layer can be obtained, which is preferable. It is more preferable that the strand tensile strength is 5.8 GPa or more.
- the fiber-reinforced resin base material of the present invention preferably has a reinforcing fiber amount of 30 g / m 2 per unit area.
- the amount of the reinforcing fibers is 30 g / m 2 or more, the thermoplastic resin (A) layer and the (B) layer can be more strongly composited, and a subsequent preform or an integrally molded product can be obtained. It is easy to handle even in work.
- the upper limit of the amount of reinforcing fibers is not particularly limited, but if it is 2,000 g / m 2 or less, the thermoplastic resins (A) and (B) can be easily impregnated into the reinforcing fibers, and the fiber-reinforced resin can be easily impregnated. It is possible to maintain the lightness of the base material.
- the volume content of the reinforcing fibers of the thermoplastic resin (A) layer and the thermoplastic resin (B) layer of the present invention is preferably 30% by volume or more and 90% by volume or less, more preferably 35% by volume or more and 85% by volume, respectively. It is the following, and more preferably 40% by volume or more and 80% by volume or less.
- the volume content of the reinforced fiber is 30% by volume or more, the amount of the resin does not become too large as compared with the fiber, and the advantages of the fiber reinforced resin base material having excellent specific strength and specific elastic modulus can be easily obtained.
- the volume content of the reinforced fiber is 90% by volume or less, poor impregnation of the resin is unlikely to occur, it is possible to suppress the generation of voids, and the thermoplastic resin (A) layer and the (B) layer are firmly bonded. It becomes possible to obtain a fiber-reinforced resin base material.
- the volume content of the reinforcing fibers in each layer can be determined by the method described in Examples described later.
- thermoplastic resin (A) and the thermoplastic resin (B) are a combination of "different thermoplastic resins".
- the term "different” as used herein means an embodiment in which the thermoplastic resin (A) and the thermoplastic resin (B) have the same composition and the same viscosity and melting point, that is, completely the same thermoplasticity. It means that the fiber-reinforced resin base material such that the resin layer is simply laminated is excluded, and the thermoplastic resin (A) and the thermoplastic resin (B) are basically not limited unless such an embodiment is used.
- thermoplastic resin refers to a concept that includes both the thermoplastic resins (A) and (B).
- resins having the same composition that is, resins having the same repeating unit but not having the same viscosity and melting point can be said to be different thermoplastic resins.
- resins having the same composition are manufactured by the same manufacturing method, they are the same resin even if their viscosities and melting points are slightly different due to variations in manufacturing conditions.
- Nylon 6 and nylon 66 are different resins even if they are the same polyamide.
- thermoplastic resin (A) and the thermoplastic resin (B) are different resin types, the effect of the present invention becomes greater. Differences in resin type are judged by the identity of the structure that characterizes the thermoplastic resin.
- a polyamide resin is a resin having a repeating unit containing an amide bond
- a polyester resin is a resin having a repeating unit containing an ester bond, which are different because they are resins having different bonding repeating units. Judged as a resin type.
- thermoplastic resin generally, a bond selected from the group consisting of a carbon-carbon bond, an amide bond, an imide bond, an ester bond, an ether bond, a carbonate bond, a urethane bond, a thioether bond, a sulfone bond and a carbonyl bond is used in the main chain.
- the thermoplastic resin having can be preferably used.
- the thermoplastic resin may have a partially crosslinked structure.
- at least one resin selected from the group consisting of polyamide, polyacetal, polyphenylene sulfide, polyester, polyether ketone, polyether ether ketone, polyarylene ether ketone, polyaramid, and polyether nitrile is suitable.
- thermoplastic resin may be a copolymer or a modified product of the above-mentioned resin, and / or a resin in which two or more kinds are blended.
- the resin occupying the largest mass among the resins constituting each thermoplastic resin is used as the thermoplastic resin. If the resins occupying the largest mass of the resins occupying each of the thermoplastic resins (A) and (B) are not the same, it is determined that the resin types of the two are different.
- the difference in melting point between the thermoplastic resin (A) and the thermoplastic resin (B) is 10 to 50 ° C.
- the "melting point” and the "glass transition temperature” can be measured by a differential scanning calorimeter (DSC) based on JIS K7121 (2012). A 1 to 10 mg sample is packed in a closed sample container with a volume of 50 ⁇ l, the temperature is raised at a temperature rise rate of 10 ° C./min, and the step of the DSC curve detected in the range of 30 to 400 ° C. is the glass transition temperature and the exothermic peak. The melting point is used as an index, and the respective temperatures are the glass transition temperature and the melting point.
- thermoplastic resin (B) the resin having the higher melting point in such an embodiment
- the melting point of the thermoplastic resin (B) is 30 ° C. or higher higher than the melting point of the thermoplastic resin (A).
- the difference in melting point is smaller than 10 ° C.
- the thermoplastic resin (B) layer is also melted or thermally deformed under the temperature condition for melting only the thermoplastic resin (A) layer for bonding with other members.
- the thermoplastic resin (B) preferably has a melting point of 40 ° C. or higher, preferably 45 ° C. or higher, higher than that of the thermoplastic resin (A). More preferred. When the difference in melting point between the thermoplastic resin (A) and the thermoplastic resin (B) is 50 ° C. or less, the thermal decomposition of the other thermoplastic resin can be suppressed under the temperature conditions for melting one. ..
- the thermoplastic resin (A) is preferably a resin selected from the group consisting of polyarylene ether ketone, polyphenylene sulfide, polyether ether ketone, and polyether ketone ketone, and the thermoplastic resin (B) is also preferable. It is preferable to use a resin selected from these groups. By selecting such a thermoplastic resin, it is possible to obtain a fiber reinforced resin base material capable of maintaining high heat resistance and high mechanical properties in a high temperature and high humidity environment.
- polyarylene ether ketone has excellent chemical resistance and abrasion resistance
- polyphenylene sulfide has excellent chemical resistance, so it is possible to cover the characteristics by combining with other thermoplastic resins that are inferior in chemical resistance and abrasion resistance. It will be possible.
- thermoplastic resin By combining resins with different characteristics such as melting point difference, viscosity difference, resin type, etc. instead of the same resin, it is possible to apply fiber-reinforced thermoplastic resin to applications and parts that were difficult to apply in the past. Become.
- a resin or resin type having a melting point difference is combined, by arranging a resin having a low melting point on the resin layer side to be bonded to another member, it is possible to melt only the resin layer to be bonded, and the opposite side. It is possible to maintain the appearance of the resin layer of.
- the fiber-reinforced resin base material which is a combination of resins having these different characteristics and resin types, is adapted to a position that is a boundary between the environment and usage conditions, for example, in a tubular body such as a pipe or a container. It can be used for parts that are exposed to oil, chemicals, hot and humid steam, etc., and parts that require heat insulation, which is the boundary of the operating temperature, such as refrigerators and ovens.
- thermoplastic resins (A) and (B) of the present invention each have a glass transition temperature of 100 ° C. or higher, preferably 150 ° C. or higher, from the viewpoint of good heat resistance and resistance to thermal deformation. Is more preferable, and it is further preferable that the temperature is 180 ° C. or higher.
- crystalline thermoplastic resins having a glass transition temperature of 100 ° C. or higher include polyarylene ether ketones such as polyetherketone, polyetherketone, polyetheretherketone, and polyetherketoneketone, alicyclic polyamide, semi-aromatic polyamide, and polyphenylene. Examples include sulfide.
- thermoplastic resins (A) and (B) are both crystalline resins having a melting point of 200 ° C. or higher from the viewpoint of good heat resistance.
- a crystalline resin has high mechanical mechanical properties and can be used continuously for a long time even in a high temperature environment required for aircraft applications.
- the melting points of the thermoplastic resins (A) and (B) are both preferably 250 ° C. or higher, more preferably 300 ° C. or higher, and even more preferably 350 ° C. or higher.
- the upper limit of the melting point is not particularly limited, but the upper limit of ordinary thermoplastic resins is 400 ° C.
- thermoplastic resins (A) and (B) of the present invention are heat-resistant when integrated with other members and used as an integrally molded product, and from the viewpoint of suppressing deterioration of physical properties in a high temperature environment.
- the thermal decomposition start temperature is preferably 480 ° C. or higher, more preferably 500 ° C. or higher, and even more preferably 550 ° C. or higher.
- thermoplastic resin An elastomer or a rubber component may be added to the thermoplastic resin in order to improve impact resistance.
- other fillers and additives may be appropriately contained as long as the object of the present invention is not impaired.
- the basis weight of each of the thermoplastic resins (A) and (B) forming each layer is preferably 10 g / m 2 or more.
- the texture of each resin is 10 g / m 2 or more
- a boundary region between the thermoplastic resin (A) layer and the (B) layer, particularly an interface where the thermoplastic resin (A) layer and the (B) layer are in contact with each other is formed. It is possible to obtain a sufficient thickness for exhibiting excellent bonding strength, which is preferable. Further, a sufficient layer thickness for integration with other members can be obtained. It is more preferably 20 g / m 2 or more, and even more preferably 50 g / m 2 or more.
- the upper limit is not particularly limited, but it is preferably 1000 g / m 2 or less because the amount of the thermoplastic resin does not become too large as compared with the reinforced fiber and a fiber reinforced resin base material having excellent specific strength and specific elastic modulus can be obtained.
- the basis weight refers to the mass (g) of the thermoplastic resin contained in 1 m 2 of the fiber-reinforced resin base material.
- the "boundary region" is the surface of the fiber-reinforced base material 1 opposite to the surface of the thermoplastic resin (A) layer 3, that is, the surface facing the thermoplastic resin (A) layer of FIG. 12 is a region opposite to the surface of the thermoplastic resin (B) layer 4, that is, a region including the facing surface 13 of the thermoplastic resin (B) layer of FIG. 3 and the air (void) 15 between them.
- This facing surface is a surface in contact with the resin layer and the facing surface of air (void) or the other resin.
- FIGS. 3 (a) and 3 (b) “Existing across the boundary area” is shown using FIGS. 3 (a) and 3 (b).
- the reinforcing fibers 2 shown by the dotted line
- the reinforcing fibers 2 are present in both the thermoplastic resin (A) layer 3 and the thermoplastic resin (B) layer 4, that is, between the resin layers.
- Reinforcing fiber 2 exists across the boundary region 14. The presence of the reinforcing fibers 2 across the boundary region 14 physically joins the thermoplastic resin (A) layer 3 and the thermoplastic resin (B) layer 4 via the reinforcing fibers 2.
- thermoplastic resin (A) layer 3 and the thermoplastic resin (B) layer 4 form an interface 5 and are bonded to each other chemically or / or physically between the thermoplastic resins. It is preferable because it binds to the plastic.
- the interface is formed and joined means that the boundary region 14 does not contain air (voids) and is formed by the thermoplastic resin (A) layer 3 and the thermoplastic resin (B) layer 4 in contact with each other. This means that the facing surfaces of the respective resin layers, that is, the facing surfaces 12 of the thermoplastic resin (A) layer and the facing surfaces 13 of the thermoplastic resin (B) layer are in close contact with each other.
- thermoplastic resin (A) layer 3 made of the thermoplastic resin (A) is bonded to the thermoplastic resin (B) layer 4 by forming an interface 5. Then, a plurality of continuous reinforcing fibers 2 are present on the interface 5.
- the state in which the thermoplastic resin (A) layer 3 and the thermoplastic resin (B) layer 4 are in contact with each other around the reinforcing fibers can be said to be a state in which the reinforcing fibers "exist across the interface".
- the presence of continuous reinforcing fibers in both resin layers across the interface improves the bonding strength between the thermoplastic resin layers.
- the continuous reinforcing fibers existing on the interface chemically and / or physically bond with the thermoplastic resin (A) and the thermoplastic resin (B), whereby the thermoplastic resin (A) layer and the thermoplastic resin (B) are bonded. Adhesion to the layer is improved.
- the number of continuously reinforcing fibers existing on the interface is 4 or more in the observation range of 500 ⁇ m ⁇ 500 ⁇ m described later, a viewpoint of exhibiting a strong bond between the thermoplastic resin (A) layer and the thermoplastic resin (B) layer. It is preferable, more preferably 10 or more, still more preferably 30 or more.
- the upper limit is not particularly limited, but is preferably 200 or less from the viewpoint of exhibiting strong bonding strength, suppressing excessive orientation of the reinforcing fibers, and obtaining a fiber-reinforced resin base material having a good appearance.
- the interlayer shear strength between the thermoplastic resin (A) layer and the thermoplastic resin (B) layer measured by JIS K7092 (2005) is preferably 30 MPa or more.
- the inter-story shear strength is more preferably 40 MPa or more, still more preferably 50 MPa or more.
- the upper limit of the interlayer shear strength is not particularly limited, but 100 MPa or less is sufficient.
- the inter-story shear strength is determined by the method described in Examples described later using a notch test piece 23 having a notch 6 formed of a notch 6 that reaches the interface 5 of the fiber reinforced resin base material 1 as shown in FIG. Can be measured with.
- the fiber-reinforced resin base material of the present invention is said to be continuous from a direction of 45 degrees with respect to the fiber direction of any continuous reinforcing fiber in a plan view of the fiber-reinforced resin base material, regardless of whether it is clockwise or counterclockwise.
- the roughness average length RSm defined by JIS B0601 (2001) of the cross-sectional curve formed by the interface between the two resin layers is 100 ⁇ m or less, and the roughness average height Rc is It is preferably 3.5 ⁇ m or more.
- RSm is 100 ⁇ m or less, not only chemical and / or physical bonding force but also mechanical bonding force due to mutual intrusion of each resin layer is applied, and the thermoplastic resin (A) layer and the thermoplastic resin (B) are added. It becomes difficult to peel off from the layer.
- the lower limit of RSm is not particularly limited, but is preferably 15 ⁇ m or more from the viewpoint of avoiding a decrease in mechanical coupling force due to stress concentration.
- the Rc of the cross-sectional curve is 3.5 ⁇ m or more, not only the mechanical binding force is exhibited by entanglement, but also the continuous reinforcing fibers existing on the interface are the thermoplastic resin (A) and the thermoplastic resin (B). ) And chemically or / or physically, the adhesion between the thermoplastic resin (A) layer and the thermoplastic resin (B) layer is improved.
- the preferred range of Rc is 10 ⁇ m or more, in which continuous reinforcing fibers are easily contained in both resin layers and the adhesion is further improved, and particularly preferably 20 ⁇ m or more.
- the upper limit of Rc is not particularly limited, but is preferably 100 ⁇ m or less from the viewpoint of avoiding a decrease in mechanical coupling force due to stress concentration.
- a known method can be used as a method for measuring the roughness average height Rc and the roughness average length RSm of the cross-sectional curve.
- a method of measuring from a cross-sectional image acquired by using X-ray CT a method of measuring from an element analysis mapping image by an energy dispersion type X-ray spectroscope (EDS), or a method of measuring from an optical microscope, a scanning electron microscope (SEM), or a transmission type.
- EDS energy dispersion type X-ray spectroscope
- SEM scanning electron microscope
- TEM electron microscope
- the thermoplastic resin (A) and / or the thermoplastic resin (B) may be stained to adjust the contrast.
- the roughness average height Rc and the roughness average length RSm of the cross-sectional curve are measured in the range of 500 ⁇ m ⁇ 500 ⁇ m.
- the calculation of Rc and RSm from the cross-sectional observation image can be performed by the method described in Examples described later.
- the pressure is applied by increasing the number of nip rolls to be pressed. It is possible to reduce the viscosity of the thermoplastic resin by lengthening the time, increasing the pressure to pressurize, setting the surface temperature of the heating and pressurizing member such as a nip roll to a high value, and the like.
- the thickness of the fiber-reinforced resin base material of the present invention is preferably 500 ⁇ m or less, more preferably 400 ⁇ m or less, and further preferably 400 ⁇ m or less, from the viewpoint of handleability and exhibiting strong bonding strength when used for bonding a plurality of members. It is preferably 300 ⁇ m or less.
- the lower limit of the thickness is not particularly limited, but if it is 20 ⁇ m or more, it is easy to handle and is preferable.
- the thickness of the thermoplastic resin (A) layer in the fiber-reinforced resin base material is preferably 20 to 80% of the thickness of the fiber-reinforced resin base material. From the viewpoint of suppressing warpage, it is also possible to adjust the thickness from the relationship of the molding shrinkage rate of the resin used. In addition, since the thinner the thickness, the easier it is to melt, it is possible to reduce the ratio of the thickness of the resin layer to be melted in a short time, or to increase the ratio of the thickness to make it difficult to melt. It is possible.
- the fiber-reinforced resin base material of the present invention is laminated with a metal member, a fiber-reinforced thermosetting resin member using a thermosetting resin for a matrix resin, a fiber-reinforced thermoplastic resin member using a thermoplastic resin for a matrix resin, and the like. Can be preformed.
- the fiber-reinforced resin base material of the present invention is placed between the members.
- thermoplastic resin (A) layer of the fiber-reinforced resin base material is arranged so as to be in contact with the thermoplastic resin (A) of the member A and the thermoplastic resin (B) layer is in contact with the thermoplastic resin (B) of the member B.
- a plurality of members can be joined via the fiber reinforced resin base material of the present invention to form an integrally molded product.
- an integrally molded product can be obtained by heating and pressurizing the above-mentioned preform by using a molding method described later.
- the member A having the thermoplastic resin (A) on the surface and the member B having the thermoplastic resin (B) on the surface via the fiber-reinforced resin base material are the thermoplastic resin (the member B having the thermoplastic resin (B) on the surface).
- An integrally molded product in which the layer A) is welded to the thermoplastic resin (A) of the member A and the thermoplastic resin (B) layer is welded to the thermoplastic resin (B) of the member B maximizes the effect of the present invention.
- the member (A) and the member (B) are fiber reinforced resins, and in this case, a molded product having excellent strength can be obtained as an integrated molded product as a whole.
- thermoplastic resin a method of joining the fiber-reinforced resin base material to one of the members A or B and then integrating the other members in order, or the member A and the member.
- a method of heating and pressurizing the above-mentioned preform in which the fiber-reinforced resin base material is arranged between B and integrating them at the same time can be used.
- each resin can be further impregnated into the continuous reinforcing fiber to form an interface.
- Examples of the molding method of the integrally molded product of the present invention include heat welding, vibration welding, ultrasonic welding, laser welding, resistance welding, induction welding, insert injection molding, outsert injection molding, two-color molding, and press molding. , Autoclave molding method, bagging molding method, wrapping tape method, internal pressure molding method, hand lay-up method, filament winding method, pull-fusion method, resin injection molding method, resin transfer molding method, etc. can.
- the fiber-reinforced resin base material of the present invention is impregnated with the thermoplastic resin (A) from one surface of the continuously reinforced fiber sheet so that the thermoplastic resin (A) layer is exposed on one surface and is continuously reinforced.
- the thermoplastic resin (B) is impregnated from the other side of the semipreg, or the thermoplastic resin (B) is impregnated from one side of the continuously reinforced fiber sheet.
- thermoplastic resin (B) has a higher melting point than the thermoplastic resin (A) as described above, the thermoplastic resin (B) having a higher melting point is impregnated first and then impregnated. It is preferable because the heating temperature applied to the thermoplastic resin (A) to be caused can reduce the possibility that the thermoplastic resin (B) causes thermal decomposition or thermal deterioration.
- the method of impregnating the thermoplastic resin from one surface is not particularly limited, and a method of arranging a thermoplastic resin in the form of a film, a non-woven fabric, or particles on the surface of a continuously reinforced fiber sheet and heating / pressurizing it or a molten state.
- a liquid thermoplastic resin dissolved in a solvent can be applied to the surface of the continuously reinforced fiber sheet and impregnated by heating and pressurizing.
- a method for heating a known method can be used. For example, a far-infrared heater, a high-temperature oven, a non-contact heating method using induction heating, a method of heating by contacting with a heated roll or belt, and the like can be mentioned.
- the method of pressurizing is not particularly limited, and examples thereof include a method of pressurizing with a reverse roll, a forward rotation roll, a kiss roll, an applicator or a belt.
- pressurization is not always necessary.
- the method of impregnating the thermoplastic resin from the other surface is not particularly limited, and the same method as the method of impregnating the thermoplastic resin from the other surface may be used. From the viewpoint of suppressing thermal decomposition and thermal deterioration of the previously impregnated thermoplastic resin, the temperature can be set to melt and melt only the thermoplastic resin impregnated from the other surface, or the heat source can be placed only on the other surface side. It can be adjusted.
- the unit "part" of the composition ratio means a mass part unless otherwise specified. Unless otherwise specified, various characteristics were measured in an environment with a temperature of 23 ° C. and a relative humidity of 50%.
- Acrylic adhesive was applied to the surface of the cured plate and bonded to both surfaces of the fiber reinforced resin base material, and the adhesive was cured to prepare a test plate for measurement. From the obtained test plate, as shown in FIG. 1, parallel and staggered from both surfaces, and on the thermoplastic resin (A) layer side and (B) layer side, the notch tips reach the interface between both layers. A notch having a width of 1 mm, an interval of 6.4 mm, and a misalignment depth of 0 to 0.2 mm was formed by a cutting machine. Then, it was cut into a length of 80 mm and a width of 12.5 mm to obtain a test piece.
- a compression test was performed using a test piece that had been notched, and the interlayer shear strength was calculated from the obtained load and the dimensions of the test piece.
- thermoplastic resin The melting point and glass transition temperature of the thermoplastic resin were measured using a differential scanning calorimeter (DSC) based on JIS K7121 (2012). A 1 to 10 mg sample is packed in a closed sample container with a volume of 50 ⁇ l, the temperature is raised at a temperature rise rate of 10 ° C./min, and the step of the DSC curve detected in the range of 30 to 400 ° C. is the glass transition temperature and the exothermic peak. The melting point was used as an index, and each temperature was used as the glass transition temperature and the melting point.
- DSC differential scanning calorimeter
- the fiber-reinforced resin base material is fiber-reinforced at an angle of 45 degrees in a plan view with respect to the fiber direction 7 of the reinforcing fibers 2 contained in both resin layers.
- a test piece having an observation cross section 8 was obtained by cutting perpendicular to the plane direction of the resin substrate. The obtained test piece was embedded in epoxy resin and the observation cross section was polished. In the obtained observation cross section, 1000 times images were taken at 10 places using an optical microscope.
- thermoplastic resin (A) layer 3 and the thermoplastic resin (B) layer 4 form an interface 5.
- thermoplastic resin (B) layer 4 made of the thermoplastic resin (B) As the reference line 9, the thermoplastic resin (B) layer 4 made of the thermoplastic resin (B) to the thermoplastic resin ( Vertical baselines 10 are drawn at intervals of 5 ⁇ m toward the thermoplastic resin (A) layer 3 made of A).
- the points where the vertical baseline 10 drawn from the reference line 9 intersects with the thermoplastic resin (A) layer 3 for the first time are plotted, and the line connecting the plotted points is defined as the cross-sectional curve 11.
- the obtained cross-section curve 11 was subjected to filtering processing based on JIS B0601 (2001), and the roughness average height Rc and the roughness average length RSm of the cross-section curve 11 were calculated.
- the roughness average height Rc and the roughness average length RSm were similarly calculated from the obtained 10 images, and the average values were used as the respective values.
- thermoplastic resin (A) layer and the (B) layer A 20 mm square piece was cut out from the fiber reinforced resin base material, embedded in an epoxy resin, and then the fiber reinforced resin base material was used. A sample was prepared by polishing so that the vertical cross section of the reinforcing fiber in the fiber direction became the observation surface. The sample was magnified 400 times with a laser microscope (VK-9510 manufactured by KEYENCE CORPORATION), and the cross section was observed. The observation image was developed on general-purpose image analysis software, and the cross section of the reinforcing fiber visible in the observation image was extracted using the program built into the software, and the total area was calculated.
- thermoplastic resin (A) layer the range surrounded by both ends of the observation cross section, the surface of the thermoplastic resin (A) layer, and the interface with the thermoplastic resin (B) layer
- the area of the layer was measured. From these measured areas, the ratio of the total area of the reinforcing fibers to the area of the thermoplastic resin (A) layer was calculated. Similar measurements were made on five observation planes, and the average value was taken as the volume content of the reinforcing fibers in the thermoplastic resin (A) layer of the present invention.
- the thermoplastic resin (B) layer was also measured by the same method.
- the obtained fiber reinforced resin base material was placed in the mold 12 as a joining member as shown in FIG. 5 (a).
- a carbon fiber reinforced thermoplastic resin (A) pellet 17 produced by melt-kneading a thermoplastic resin (A) and a carbon fiber (20% by mass) with an extruder is injection-molded on the thermoplastic resin (A) layer side.
- carbon fiber reinforced thermoplastic resin (B) pellets 19 produced by melt-kneading the thermoplastic resin (B) and carbon fibers (20% by mass) with an extruder are injection-molded. Then, a test piece 21 for measuring the joint strength of the integrally molded product was produced.
- a tensile test was performed using the obtained test piece, and the joint strength was calculated from the obtained breaking load and the area of the joint.
- the obtained joint strength was evaluated as follows. 50 MPa or more, or destruction of base metal of injection molded member: A 40 MPa or more and less than 50 MPa, or destruction of the base metal of the injection molded member: B 30 MPa or more and less than 40 MPa, or destruction of the base metal of the injection molded member: C Less than 30 MPa: D (failed).
- the single fiber is pulled up at a speed of 0.2 mm / s. This operation is repeated 4 times or more.
- the force F received by the single fiber when immersed in the liquid is measured with an electronic balance. Using this value, the contact angle ⁇ is calculated by the following equation.
- COS ⁇ (force F (mN) received by 8 single fibers) / ((8 (number of single fibers) x circumference (m) of single fibers x surface tension of solvent (mJ / m 2 )))
- the measurement was performed on single fibers extracted from different locations of the three reinforcing fiber bundles. That is, the average value of the contact angles of a total of 24 single fibers for one reinforcing fiber bundle was obtained.
- the surface free energy ⁇ f of the reinforcing fiber is calculated as the sum of the polar component ⁇ p f of the surface free energy and the non-polar component ⁇ d f of the surface free energy.
- the polar component ⁇ p f of the surface free energy is the surface tension of each liquid according to the approximate formula of Owens (a formula composed of the polar component and the non-polar component of the surface tension peculiar to each solvent, and the contact angle ⁇ ). After substituting the components and contact angles of, and plotting them on X and Y, it is obtained by the self-polarization of the inclination a when linearly approximated by the minimum self-polarization method.
- the non-polar component ⁇ d f of the surface free energy is obtained by the square of the intercept b.
- the surface free energy ⁇ f of the reinforcing fiber is the sum of the square of the slope a and the square of the intercept b.
- the polar and non-polar components of the surface tension of each solvent are as follows. -Purified water surface tension 72.8 mJ / m 2 , polar component 51.0 mJ / m 2 , non-polar component 21.8 mJ / m 2 -Ethylene glycol surface tension 48.0 mJ / m 2 , polar component 19.0 mJ / m 2 , non-polar component 29.0 mJ / m 2 -Tricresol phosphate surface tension 40.9 mJ / m 2 , polar component 1.7 mJ / m 2 , non-polar component 39.2 mJ / m 2 .
- a notch having a width of 1 mm, an interval of 6.4 mm, and a misalignment depth of 0 to 0.2 mm was formed by a cutting machine. Then, it was cut into a length of 80 mm and a width of 12.5 mm to obtain a test piece.
- a compression test was performed using a test piece that had been notched, and the interlayer shear strength was calculated from the obtained load and the dimensions of the test piece.
- thermodecomposition start temperature of the thermoplastic resin rises in a temperature range of 50 to 600 ° C. using a thermal weight measuring device (TG-DTA) based on JIS K7120 (1987). The measurement was carried out at a temperature rate of 10 ° C./min under a dry air atmosphere. At this time, 5 to 15 mg of the thermoplastic resin was taken out from the pellets and powders used for each resin layer, or by scraping each thermoplastic resin from the fiber-reinforced resin base material, and placed in a platinum container for measurement. From the obtained TG curve, the "starting temperature T1" at which the mass change starts was defined as the thermal decomposition starting temperature of each thermoplastic resin.
- thermoplastic resin (A) thermoplastic resin (B)
- thermoplastic resin (B) thermoplastic resin
- thermoplastic resin (A) and thermoplastic resin (B) TP-2 A film having a grain size of 120 g / m 2 consisting of PEEK (polyether ether ketone), PEEK 450G (manufactured by Victorex, crystalline, melting point 343 ° C, glass transition temperature 143 ° C, thermal decomposition start temperature 480 ° C).
- TP-3 PPS (polyphenylene sulfide), crystalline, melting point 284 [° C], glass transition temperature 90 ° C, thermal decomposition start temperature 460 ° C, 120 g / m 2 film with a grain size TP-5: modified PP, unmodified polypropylene
- the resin (“Prime Polypro” (registered trademark) J105G manufactured by Prime Polymer Co., Ltd.) is blended in an amount of 80% by mass, and the acid-modified polypropylene resin (“Admer” QB510 manufactured by Mitsui Chemicals Co., Ltd.) is blended in an amount of 20% by mass.
- TP-6 Modified PPS, A resin (crystal) obtained by blending TP-3 so that the PPS is 95% by mass and the aliphatic polycarbodiimide "Carbodilite (registered trademark)" is 5% by mass and melt-kneading using a twin-screw extruder.
- TP-7 PEKK1 (polyetherketone-ketone), crystalline, melting point 300 ° C.
- B-1 PO-modified polyethyleneimine (PP061, manufactured by Nippon Shokubai Co., Ltd.)
- B-2 Polyallylamine (PAA-01, manufactured by Nippon Shokubai Co., Ltd.)
- B-3 Polyethyleneimine (SP-012, manufactured by Nippon Shokubai Co., Ltd.).
- Example 1 Compound a-4 was mixed with acetone to obtain a solution in which the compound was uniformly dissolved in an amount of about 1% by mass. After immersing the reinforcing fiber CF-1 in this solution, it was heat-treated at 210 ° C. for 90 seconds. At this time, the amount of the compound a-4 adhered was adjusted to be 0.5 parts by mass with the reinforcing fiber CF-1 as 100 parts by mass, and a continuous reinforcing fiber was produced.
- One of the continuous reinforcing fiber sheets is TP-8 as the thermoplastic resin (B) while pulling out the reinforcing fiber sheet (grain 193 g / m 2 ) in which the continuous reinforcing fibers are aligned in one direction and running the continuous reinforcing fibers in one direction. It is placed on the surface and heated by an IR heater to melt the thermoplastic resin (B) and adhere to the entire surface of one side of the continuous reinforcing fiber sheet, and the temperature is 100 ° C. lower than the melting point of the thermoplastic resin (B) (in Example 1).
- thermoplastic resin (A) was placed as the thermoplastic resin (A) on the other surface of the obtained semipreg, and heated with an IR heater to melt the thermoplastic resin (A) and adhered to the surface of the semipreg. Then, the thermoplastic resin (A) is pressurized with three pairs of nip rolls kept at a temperature 100 ° C. lower than the melting point of the thermoplastic resin (A) (200 ° C., which is 100 ° C. lower than the melting point of TP-7 in Example 1). A) was impregnated into a fiber-reinforced resin intermediate and cooled to obtain a fiber-reinforced resin base material.
- thermoplastic resin (A) pellet 17 produced by melt-kneading a thermoplastic resin (A) and a carbon fiber (20% by mass) with an extruder is injection-molded on the thermoplastic resin (A) layer side.
- thermoplastic resin (B) layer side On the thermoplastic resin (B) layer side, a carbon fiber reinforced thermoplastic resin (B) pellet 19 produced by melt-kneading the thermoplastic resin (B) and carbon fiber (20% by mass) with an extruder is injection-molded. Then, an integrally molded product was obtained.
- Table 1 shows the evaluation results of the obtained fiber-reinforced resin base material and the integrally molded product.
- Example 2 to 10 A fiber-reinforced resin base material was obtained by the same method as in Example 1 except that the compound applied to the reinforcing fiber was changed as shown in Table 1. Table 1 shows the evaluation results of the obtained fiber-reinforced resin base material and the integrally molded product.
- Example 11 As shown in Table 2, a fiber-reinforced resin base material was obtained by the same method as in Example 1 except that the reinforcing fibers CF-2 having different strand tensile strengths were used. Table 2 shows the evaluation results of the obtained fiber-reinforced resin base material and the integrally molded product.
- Example 1 Comparing Example 1 and Example 11, it can be seen that when the strand tensile strength of the reinforcing fiber is high, the interlayer shear strength of both resins is improved, and the bonding strength of the obtained integrally molded product is also improved.
- Example 12 to 17 As shown in Table 2, a fiber-reinforced resin base material was obtained in the same manner as in Example 1 except that the thermoplastic resin used for the thermoplastic resin (A) and / the thermoplastic resin (B) was changed. The heating temperature of the nip roll was set to a temperature 100 ° C. lower than the melting point of the thermoplastic resin used in each example. Table 2 shows the evaluation results of the obtained fiber-reinforced resin base material and the integrally molded product.
- Example 18 A fiber-reinforced resin base material was obtained in the same manner as in Example 1 except that a reinforcing fiber sheet having a basis weight of 250 g / m 2 was used. Table 2 shows the evaluation results of the obtained fiber-reinforced resin base material and the integrally molded product.
- Example 1 Comparing Example 1 and Example 18, as the volume content of the reinforcing fibers was increased, the interlayer shear strength of both resins was improved, and the bonding strength of the obtained integrally molded product was also improved.
- Example 19 In the step of pulling out a reinforcing fiber sheet in which continuous reinforcing fibers are arranged in one direction and impregnating the reinforcing fiber sheet with the thermoplastic resin (A) and the thermoplastic resin (B) running in one direction, the running of the reinforcing fiber sheet.
- a fiber-reinforced resin base material was obtained in the same manner as in Example 1 except that the speed was doubled. By doubling the traveling speed of the reinforced fiber sheet, the time for each thermoplastic resin to impregnate the reinforced fiber sheet is shortened. Therefore, in the obtained fiber reinforced resin base material, each thermoplastic resin is the center of the reinforced fiber sheet. The portion was not completely impregnated, and a boundary region having a gap was formed between the facing surfaces of each resin layer.
- thermoplastic resin TP-7 and the carbon fiber TP-1, the thermoplastic resin TP-8 and the carbon fiber TP-1 are melt-kneaded with an extruder to melt and knead the carbon fiber reinforced thermoplastic resin (A) pellets and (B).
- Pellets were prepared (corresponding to carbon fiber reinforced thermoplastic resin pellets 17 and 19 in FIG. 5). Injection molding was performed using these carbon fiber reinforced thermoplastic resin pellets to obtain a flat plate made of carbon fiber reinforced thermoplastic resin.
- the flat plate obtained from the carbon fiber reinforced thermoplastic resin (A) pellet, the fiber reinforced resin base material obtained in Example 19, and the flat plate obtained from the carbon fiber reinforced thermoplastic resin (B) pellet are stacked in this order, and the hot plate temperature is increased.
- thermoplastic resin (A) layer of the fiber-reinforced resin base material and the flat plate obtained from the carbon fiber-reinforced thermoplastic resin (A) pellets were arranged so as to be in contact with each other.
- thermoplastic resin (A) One surface of the continuous reinforcing fiber sheet as the thermoplastic resin (A) while pulling out the reinforcing fiber sheet having a texture (97 g / m 2 ) in which the continuous reinforcing fibers are aligned in one direction and running in one direction.
- a nip roll which is placed in an IR heater to melt the thermoplastic resin (A) and adhere to the entire surface of one side of the continuous reinforcing fiber sheet, and kept at a temperature 100 ° C. lower than the melting point of the thermoplastic resin (A).
- thermoplastic by heating a laminate of a thermoplastic resin film in which TP-7, which is a thermoplastic resin (A), and TP-8, which is a thermoplastic resin (B), are laminated with an IR heater without using continuous reinforcing fibers.
- the resin (A) was melted and adhered to the surface of the thermoplastic resin (B).
- pressure was applied with three pairs of nip rolls kept at a temperature (200 ° C.) 100 ° C. lower than the melting point of the thermoplastic resin (A) to obtain a thermoplastic resin film having a two-layer structure.
- Table 3 shows the evaluation results of the obtained thermoplastic resin film.
- Comparing Example 1 with Comparative Example 1 and Comparative Example 2 although the same type of thermoplastic resin is used, high interlayer shear strength is obtained because there is no reinforcing fiber straddling the boundary region formed by both thermoplastic resins. could not be expressed. Further, although it was possible to obtain an integrally molded product using them, it did not have sufficient bonding strength.
- a fiber-reinforced resin base material was obtained in the same manner as in Example 1 except that the thermoplastic resin used for the thermoplastic resin (A) and / the thermoplastic resin (B) was changed.
- the heating temperature of the nip roll was set to a temperature 100 ° C. lower than the melting point of the thermoplastic resin used.
- the characteristics of the obtained fiber-reinforced resin base material are shown in Table 3.
- Comparing Example 1 and Comparative Example 3 since a thermoplastic resin having a melting point of 200 ° C. or lower was used, the bonding strength could not be maintained in a high temperature atmosphere, and it was not suitable for use in a high temperature environment.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Laminated Bodies (AREA)
- Reinforced Plastic Materials (AREA)
Abstract
Description
連続強化繊維シートの一方の面から熱可塑性樹脂(A)を含浸させ、熱可塑性樹脂(A)層が一方の面に露出し、かつ連続強化繊維シートが他方の面に露出したセミプレグを得た後に、該セミプレグの前記他方の面から熱可塑性樹脂(B)を含浸させるか、または、連続強化繊維シートの一方の面から熱可塑性樹脂(B)を含浸させ、熱可塑性樹脂(B)層が一方の面に露出し、かつ連続強化繊維シートが他方の面に露出したセミプレグを得た後に、該セミプレグの前記他方の面から熱可塑性樹脂(A)を含浸させることを特徴とする繊維強化樹脂基材の製造方法である。
本発明で用いる強化繊維としては、ガラス繊維、炭素繊維、金属繊維、芳香族ポリアミド繊維、ポリアラミド繊維、アルミナ繊維、炭化珪素繊維、ボロン繊維、玄武岩繊維などがある。これらは、単独で用いてもよいし、適宜2種以上併用して用いてもよい。強化繊維としては、炭素繊維が、比重が小さく、高強度、高弾性率であることから、好ましく使用される。炭素繊維の市販品としては、“トレカ(登録商標)”T800G-24K、“トレカ(登録商標)”T800S-24K、“トレカ(登録商標)”T700G-24K、“トレカ(登録商標)”T700S-24K、“トレカ(登録商標)”T300-3K、および“トレカ(登録商標)”T1100G-24K(以上、東レ(株)製)などが挙げられる。
本発明の熱可塑性樹脂(A)および熱可塑性樹脂(B)は「異なる熱可塑性樹脂」の組み合わせである。ここでいう「異なる」とは、熱可塑性樹脂(A)および熱可塑性樹脂(B)として同一の組成を有し、かつ粘度や融点も同一の樹脂を用いた態様、すなわち完全に同一の熱可塑性樹脂の層が単に積層したような繊維強化樹脂基材を排除することを意味し、そのような態様でない限り熱可塑性樹脂(A)と熱可塑性樹脂(B)は、基本的には限定されない。さらに具体的には、市販されている熱可塑性樹脂の1つのグレードを熱可塑性樹脂(A)および熱可塑性樹脂(B)として用いた態様を指す。また、本明細書において単に「熱可塑性樹脂」という場合には、熱可塑性樹脂(A)および(B)の両者を含む概念を指すものとする。
本発明の繊維強化樹脂基材においては、連続強化繊維に熱可塑性樹脂(A)と、熱可塑性樹脂(A)とは異なる熱可塑性樹脂(B)とが含浸されるとともに、熱可塑性樹脂(A)からなる熱可塑性樹脂(A)層が一方の表面に露出し、熱可塑性樹脂(B)からなる熱可塑性樹脂(B)層が他方の表面に露出している。そして、熱可塑性樹脂(A)層と熱可塑性樹脂(B)層とは境界域を形成している。
本発明の繊維強化樹脂基材は、金属部材、マトリックス樹脂に熱硬化性樹脂を用いた繊維強化熱硬化性樹脂部材、マトリックス樹脂に熱可塑性樹脂を用いた繊維強化熱可塑性樹脂部材などと積層してプリフォームとすることができる。特に、熱可塑性樹脂(A)を表面に有する部材Aと熱可塑性樹脂(B)を表面に有する部材Bを接合する場合において、本発明の繊維強化樹脂基材を、それらの部材との間に、繊維強化樹脂基材の熱可塑性樹脂(A)層が部材Aの熱可塑性樹脂(A)と、熱可塑性樹脂(B)層が部材Bの熱可塑性樹脂(B)と接するように配置したプリフォームとすることで、本発明の効果を最大に発現することができる。
また、本発明の繊維強化樹脂基材を介して複数の部材を接合し、一体化成形品とすることができる。典型的には、このような一体化成形品は、前述したプリフォームを後述する成形方法を用いて加熱・加圧することで得ることができる。
本発明の繊維強化樹脂基材は、一例として、連続強化繊維シートの一方の面から熱可塑性樹脂(A)を含浸させ、熱可塑性樹脂(A)層が一方の面に露出し、かつ連続強化繊維シートが他方の面に露出したセミプレグを得た後に、該セミプレグの前記他方の面から熱可塑性樹脂(B)を含浸させるか、または、連続強化繊維シートの一方の面から熱可塑性樹脂(B)を含浸させ、熱可塑性樹脂(B)層が一方の面に露出し、かつ連続強化繊維シートが他方の面に露出したセミプレグを得た後に、該セミプレグの前記他方の面から熱可塑性樹脂(A)を含浸させる方法により作製することができる。このとき、前述のように熱可塑性樹脂(B)が熱可塑性樹脂(A)よりも高い融点を有するとして説明すると、融点が高い熱可塑性樹脂(B)を先に含浸させることにより、あとに含浸させる熱可塑性樹脂(A)に対して付加される加熱温度によって熱可塑性樹脂(B)が熱分解や熱劣化を引き起こす可能性を低減させることが可能となるため好ましい。
(1)繊維強化樹脂基材の層間せん断強度
繊維強化樹脂基材の熱可塑性樹脂(A)層と熱可塑性樹脂(B)層との層間せん断強度は、JIS K7092(2005)に基づいて測定した。本発明の繊維強化樹脂基材およびその比較品において、試験片の長さ方向と連続強化繊維の繊維方向を同じ方向とした。炭素繊維とエポキシ樹脂からなるプリプレグを2mmの厚みとなるように積層した後、プレス成形によって硬化板を得た。得られた硬化板に対し、サンドブラスターで表面を粗面化し、脱脂を行った。アクリル接着剤を硬化板の表面に塗布し、繊維強化樹脂基材の両表面に貼り合わせ、接着剤を硬化させて測定用の試験板を作製した。得られた試験板より、図1に示すように両表面から平行で互い違いに、かつ熱可塑性樹脂(A)層側と(B)層側に、両層の界面に切欠き先端が達するように、幅1mm、間隔6.4mm、目違い深さ0~0.2mmとなる切欠きを切削加工機で形成した。その後、長さ80mm、幅12.5mmに切り出して試験片を得た。
熱可塑性樹脂の融点およびガラス転移温度は、JIS K7121(2012)に基づいて、示差走査熱量計(DSC)を用いて測定した。容積50μlの密閉型サンプル容器に1~10mgのサンプルを詰め、昇温速度10℃/分で昇温し、30~400℃の範囲で検出されるDSC曲線の段差をガラス転移温度、発熱ピークを融点の指標とし、それぞれの温度をガラス転移温度および融点とした。
作製した繊維強化樹脂基材を用い、図2に示すように前記両樹脂層に含まれる強化繊維2の繊維方向7に対し、繊維強化樹脂基材の平面視における45度の角度にて繊維強化樹脂基材平面方向に対し垂直にカットし、観察断面8を有する試験片を得た。得られた試験片をエポキシ樹脂で包埋し、観察断面を研磨した。得られた観察断面において、光学顕微鏡を用いて、1000倍の画像を10か所撮影した。
繊維強化樹脂基材から20mm四方の小片を切り出し、エポキシ樹脂に包埋した上で、繊維強化樹脂基材の強化繊維の繊維方向の垂直断面が観察面となるように研磨して試料を作製した。試料をレーザー顕微鏡(キーエンス(株)製、VK-9510)で400倍に拡大し、断面の観察を行った。観察画像を汎用画像解析ソフトウェア上に展開し、ソフトウェアに組み込まれたプログラムを利用して観察画像中に見える強化繊維の断面を抽出し、総面積を算出した。同様に熱可塑性樹脂(A)層の外周(観察断面の両端部、熱可塑性樹脂(A)層の表面、熱可塑性樹脂(B)層との界面で囲まれる範囲)から熱可塑性樹脂(A)層の面積を計測した。これらの計測した面積より、熱可塑性樹脂(A)層の面積あたりの強化繊維の総面積の割合を算出した。5か所の観察面で同様の計測を行い、平均値を本発明の熱可塑性樹脂(A)層における強化繊維の体積含有率とした。また熱可塑性樹脂(B)層についても同様の方法で計測を行った。
前述した(3)で用いた断面曲線のプロット位置の平均値を熱可塑性樹脂(A)層と熱可塑性樹脂(B)層の厚みの境界として、繊維強化樹脂基材の一方の表面(熱可塑性樹脂(A)が露出している面)から、厚みの境界までの距離を測定し、熱可塑性樹脂(A)層の厚みとした。また繊維強化樹脂基材の厚みをマイクロメーターを用いて測定し、これらの測定値から厚みの比率を算出した。
得られた繊維強化樹脂基材を接合部材として、図5(a)に示すように金型12内に配置した。熱可塑性樹脂(A)層側には熱可塑性樹脂(A)と炭素繊維(20質量%)を押出機で溶融混錬して作製した炭素繊維強化熱可塑性樹脂(A)ペレット17を射出成形し、熱可塑性樹脂(B)層側には熱可塑性樹脂(B)と炭素繊維(20質量%)を押出機で溶融混錬して作製した炭素繊維強化熱可塑性樹脂(B)ペレット19を射出成形し、一体化成形品の接合強度測定用の試験片21を作製した。
50MPa以上、または射出成形部材の母材破壊:A
40MPa以上50MPa未満、または射出成形部材の母材破壊:B
30MPa以上40MPa未満、または射出成形部材の母材破壊:C
30MPa未満:D(不合格)。
DataPhysics社製DCAT11を用いて、まず、強化繊維束から1本の単繊維を取り出し、長さ12±2mmに8本にカットした後、専用ホルダーFH12(表面が粘着物質でコーティングされた平板)に単繊維間を2~3mmとして平行に貼り付ける。その後、単繊維の先端を切り揃えてホルダーのDCAT11にセットする。測定は、各溶媒の入ったセルを8本の単繊維の下端に0.2mm/sの速度で近づけ、単繊維の先端から5mmまで浸漬させる。その後、0.2mm/sの速度で単繊維を引き上げる。この操作を4回以上繰り返す。液中に浸漬している時の単繊維の受ける力Fを電子天秤で測定する。この値を用いて次式で接触角θを算出する。
なお、測定は、3箇所の強化繊維束の異なる場所から抜き出した単繊維について実施した。すなわち、一つの強化繊維束に対して合計24本の単繊維についての接触角の平均値を求めた。
Y=a・X+b
X=√(溶媒の表面張力の極性成分(mJ/m2))/√(溶媒の表面張力の非極性成分(mJ/m2)
Y=(1+COSθ)・(溶媒の表面張力の極性成分(mJ/m2))/2√(溶媒の表面張力の非極性成分(mJ/m2)
強化繊維の表面自由エネルギーの極性成分γp f=a2
強化繊維の表面自由エネルギーの非極性成分γd f=b2
トータルの表面自由エネルギーγf=a2+b2。
・精製水
表面張力72.8mJ/m2、極性成分51.0mJ/m2、非極性成分21.8mJ/m2
・エチレングリコール
表面張力48.0mJ/m2、極性成分19.0mJ/m2、非極性成分29.0mJ/m2
・燐酸トリクレゾール
表面張力40.9mJ/m2、極性成分1.7mJ/m2、非極性成分39.2mJ/m2。
得られた繊維強化樹脂基材を接合部材として、他の部材と一体化した一体化成形品において、繊維強化樹脂基材の熱可塑性樹脂(A)側および熱可塑性樹脂(B)側の他の部材の厚みが2mmとなるように切削加工や研磨などの方法によって厚みを調整して、試験板を作製した。得られた試験板より、図1に示すように両表面から平行で互い違いに、かつ熱可塑性樹脂(A)層側と(B)層側に、両層の界面に切欠き先端が達するように、幅1mm、間隔6.4mm、目違い深さ0~0.2mmとなる切欠きを切削加工機で形成した。その後、長さ80mm、幅12.5mmに切り出して試験片を得た。
熱可塑性樹脂の熱分解開始温度は、JIS K7120(1987)に基づいて、熱重量測定装置(TG-DTA)を用い、温度領域50~600℃、昇温速度10℃/分、乾燥空気雰囲気下で測定した。このとき、熱可塑性樹脂は各樹脂層に使用したペレットや紛体、または繊維強化樹脂基材から各熱可塑性樹脂を削るなどして5~15mg取り出し、白金製容器に入れて測定を行った。得られたTG曲線より、質量変化が始まる「開始温度T1」を各熱可塑性樹脂の熱分解開始温度とした。
評価を行う空間を恒温槽で囲い、雰囲気温度を150℃としたこと以外は、上記(6)一体化成形品の接合強度と同様の方法で高温雰囲気下における接合強度を評価した。試験片を装置に配置後、恒温槽の雰囲気温度が150℃に戻ってから5分後に引張試験を行い、得られて破断荷重と接合部の面積から接合強度を算出した。得られた接合強度は、以下の通り評価した。Eを不合格とした。
(6)の接合強度対比、90%以上の接合強度を発現:A
(6)の接合強度対比、70以上90%未満の接合強度を発現:B
(6)の接合強度対比、50%以上70%未満の接合強度を発現:C
(6)の接合強度対比、40%以上50%未満の接合強度を発現:D
(6)の接合強度対比、40%未満:E。
以下に示す強化繊維、熱可塑性樹脂(A)、熱可塑性樹脂(B)を用いた。それぞれの実施例および比較例で用いた材料は、表1~3に示すとおりである。
イタコン酸を共重合したアクリロニトリル共重合体を紡糸し、焼成することで、総フィラメント24,000本、比重1.8、ストランド強度とストランド弾性率の異なる炭素繊維を得た。
・CF-1:ストランド引張強度:5.9GPa、ストランド弾性率:290GPa。
・CF-2:ストランド引張強度:4.9GPa、ストランド弾性率:230GPa。
・TP-2:PEEK(ポリエーテルエーテルケトン)、PEEK 450G(Victrex社製、結晶性、融点343℃、ガラス転移温度143℃、熱分解開始温度480℃)からなる目付120g/m2のフィルム
・TP-3:PPS(ポリフェニレンスルフィド)、結晶性、融点284[℃]、ガラス転移温度90℃熱分解開始温度460℃からなる目付120g/m2のフィルム
・TP-5:変性PP、未変性ポリプロピレン樹脂(プライムポリマー(株)製“プライムポリプロ”(登録商標)J105G)が80質量%、酸変性ポリプロピレン樹脂(三井化学(株)製“アドマー”QB510)が20質量%となるように配合し、2軸押出機を用いて溶融混錬して得られた樹脂(結晶性、融点165[℃]、熱分解開始温度310℃)からなる目付120g/m2のフィルム
・TP-6:変性PPS、TP-3のPPSが95質量%、脂肪族ポリカルボジイミド“カルボジライト(登録商標)”が5質量%となるように配合し、2軸押出機を用いて溶融混錬して得られた樹脂(結晶性、融点273[℃]、ガラス転移温度85℃、熱分解開始温度450℃)からなる目付120g/m2のフィルム
・TP-7:PEKK1(ポリエーテルケトンケトン)、結晶性、融点300℃、ガラス転移温度160℃、体積溶融流量34cm3/分@380℃、熱分解開始温度490℃からなる目付120g/m2のフィルム
・TP-8:PEKK2(ポリエーテルケトンケトン)、結晶性、融点332℃、ガラス転移温度162℃、体積溶融流量34cm3/分@380℃、熱分解開始温度510℃からなる目付120g/m2のフィルム
・TP-9:PEKK3(ポリエーテルケトンケトン)、結晶性、融点332℃、ガラス転移温度162℃、体積溶融流量68cm3/分@380℃、熱分解開始温度510℃からなる目付120g/m2のフィルム
・TP-10:PA6(ポリアミド6)、結晶性、融点215℃、ガラス転移温度150℃、熱分解開始温度330℃からなる目付120g/m2のフィルム。
・a-1:ソルビトールポリグリシジルエーテル(EX614B、ナガセケムテックス(株)社製)
・a-2:ジグリセロールポリグリシジルエーテル(EX421、ナガセケムテックス(株)社製)
・a-3:ポリグリセロールポリグリシジルエーテル(EX521、ナガセケムテックス(株)社製)
・a-4:ポリエチレングリコールジグリシジルエーテル(エチレンオキサイドの数 13、ナガセケムテックス(株)社製)
・a-5:ビスフェノールAエチレンオキシド15モル付加物。
・b-1:PO変性ポリエチレンイミン(PP061、(株)日本触媒社製)
・b-2:ポリアリルアミン(PAA-01、(株)日本触媒社製)
・b-3:ポリエチレンイミン(SP-012、(株)日本触媒社製)。
・C-1:エチレングリコールジグリシジルエーテル(EX-810、ナガセケムテックス(株)社製)
・C-2:ビスフェノールA型ジグリシジルエーテル(jER828、三菱ケミカル(株)社製)。
化合物a-4をアセトンと混合し、化合物が均一に溶解した約1質量%の溶液を得た。この溶液に強化繊維CF-1を浸漬した後、210℃で90秒間熱処理をした。このとき、化合物a-4の付着量が強化繊維CF-1を100質量部として0.5質量部となるように調整し、連続強化繊維を作製した。
表1に記載のとおり強化繊維に付与する化合物を変更したこと以外は実施例1と同様の方法で、繊維強化樹脂基材を得た。得られた繊維強化樹脂基材および一体化成形品の評価結果を表1に示す。
表2に記載のとおり、ストランド引張強度の異なる強化繊維CF-2を用いた以外は実施例1と同様の方法で、繊維強化樹脂基材を得た。得られた繊維強化樹脂基材および一体化成形品の評価結果を表2に示す。
表2に記載のとおり、熱可塑性樹脂(A)および/熱可塑性樹脂(B)に用いる熱可塑性樹脂を変更した以外は実施例1と同様にして繊維強化樹脂基材を得た。ニップロールでの加熱温度は、各実施例で使用した熱可塑性樹脂の融点より100℃低い温度に設定した。得られた繊維強化樹脂基材および一体化成形品の評価結果を表2に示す。
目付250g/m2の強化繊維シートを用いた以外は実施例1と同様にして繊維強化樹脂基材を得た。得られた繊維強化樹脂基材および一体化成形品の評価結果を表2に示す。
連続強化繊維を一方向に配列させた強化繊維シートを引き出し、熱可塑性樹脂(A)および熱可塑性樹脂(B)を一方向に走行させた強化繊維シートに含浸させる工程において、強化繊維シートの走行速度を2倍としたこと以外は実施例1と同様して繊維強化樹脂基材を得た。強化繊維シートの走行速度を2倍とすることで各熱可塑性樹脂が強化繊維シートに含浸する時間が短くなるため、得られた繊維強化樹脂基材は、各熱可塑性樹脂が強化繊維シートの中心部に完全に含浸しておらず、各樹脂層の対向面の間に空隙がある境界域が形成された状態であった。
連続強化繊維を一方向に整列させた目付(97g/m2)の強化繊維シートを引き出し、一方向に走行させつつ、熱可塑性樹脂(A)としてTP-7を連続強化繊維シートの一方の表面に配置して、IRヒータで加熱して熱可塑性樹脂(A)を溶融させて連続強化繊維シート片面全面に付着させ、熱可塑性樹脂(A)の融点より100℃低い温度に保たれたニップロールで加圧して、強化繊維シートに熱可塑性樹脂が完全に含浸した熱可塑性樹脂(A)のみの繊維強化樹脂基材を得た。また熱可塑性樹脂(A)としてのTP-7を熱可塑性樹脂(B)としてのTP-8に変更したこと以外は、同様の方法で、熱可塑性樹脂(B)のみの繊維強化樹脂基材を得た。得られた2種類の繊維強化樹脂基材を積層し、IRヒータで加熱して熱可塑性樹脂(B)を溶融させ、熱可塑性樹脂(B)の融点より100℃低い温度に保たれたニップロールで加圧して、2種類の繊維強化樹脂基材同士を一体化して繊維強化樹脂基材を得た。得られた繊維強化樹脂基材の評価結果を表3に示す。
連続強化繊維を用いず、熱可塑性樹脂(A)であるTP-7と熱可塑性樹脂(B)であるTP-8を重ね合わせた熱可塑性樹脂フィルムの積層体をIRヒータで加熱して熱可塑性樹脂(A)を溶融させ、熱可塑性樹脂(B)の表面に付着させた。そして、熱可塑性樹脂(A)の融点より100℃低い温度(200℃)に保たれた3対のニップロールで加圧して、二層構造の熱可塑性樹脂フィルムを得た。
表3に記載のとおり、熱可塑性樹脂(A)および/熱可塑性樹脂(B)に用いる熱可塑性樹脂を変更した以外は実施例1と同様にして繊維強化樹脂基材を得た。ニップロールでの加熱温度は、使用した熱可塑性樹脂の融点より100℃低い温度に設定した。得られた繊維強化樹脂基材の特性は表3に示す。
接合部材として繊維強化樹脂基材を用いないこと以外は実施例1と同様にして、炭素繊維強化熱可塑性樹脂(A)ペレットのみで射出成形を行い、繊維強化樹脂基材が一体化されていない成形部材(A)を作製した。次いで、図5(b)に示すように、成形部材(A)を佳奈が16内に配置した後に炭素繊維強化熱可塑性樹脂(B)ペレットを用いて射出成形を行い、一体化成形品の接合強度用試験片を作製した。
2:強化繊維
3:熱可塑性樹脂(A)層
4:熱可塑性樹脂(B)層
5:界面
6:切欠き
7:強化繊維の繊維方向
8:観察断面
9:基準線
10:垂基線
11:断面曲線
12:熱可塑性樹脂(A)層の対向面
13:熱可塑性樹脂(B)層の対向面
14:境界域
15:空気(空隙)
16:金型
17:炭素繊維強化熱可塑性樹脂(A)ペレット
18:射出成形機
19:炭素繊維強化熱可塑性樹脂(B)ペレット
20:炭素繊維強化熱可塑性樹脂(A)成形品
21:炭素繊維強化熱可塑性樹脂(B)成形品
22:一体化成形品の接合強度測定用試験片
23:切欠き試験片
Claims (18)
- 連続強化繊維に、熱可塑性樹脂(A)と熱可塑性樹脂(B)とが含浸されてなる繊維強化樹脂基材であって、
熱可塑性樹脂(A)からなり、一方の表面に露出する熱可塑性樹脂(A)層と、熱可塑性樹脂(B)からなり、他方の表面に露出する熱可塑性樹脂(B)層とが、境界域を形成し、
前記連続強化繊維の少なくとも一部は前記境界域を跨いで存在し、
熱可塑性樹脂(A)および熱可塑性樹脂(B)がともに融点200℃以上の結晶性樹脂である繊維強化樹脂基材。 - 前記熱可塑性樹脂(A)および前記熱可塑性樹脂(B)の融点の差が10~50℃である、請求項1に記載の繊維強化樹脂基材。
- 前記一方の表面に露出する熱可塑性樹脂(A)層と、前記他方の表面に露出する熱可塑性樹脂(B)層とが、界面を形成して接合している、請求項1または2に記載の繊維強化樹脂基材。
- JIS K7092(2005)によって測定される前記熱可塑性樹脂(A)層と熱可塑性樹脂(B)層との層間せん断強度が30MPa以上である、請求項1~3のいずれかに記載の繊維強化樹脂基材。
- 熱可塑性樹脂(A)と熱可塑性樹脂(B)とが異なる樹脂種である、請求項1~4のいずれかに記載の繊維強化樹脂基材。
- 前記熱可塑性樹脂(A)が、ポリアリーレンエーテルケトン、ポリフェニレンスルフィド、ポリエーテルエーテルケトン、およびポリエーテルケトンケトンからなる群より選択される樹脂である、請求項1~5のいずれかに記載の繊維強化樹脂基材。
- 前記熱可塑性樹脂(A)層の厚みが繊維強化樹脂基材の厚みに対して20~80%である、請求項1~6のいずれかに記載の繊維強化樹脂基材。
- 前記熱可塑性樹脂(A)層および前記熱可塑性樹脂(B)層の強化繊維の体積含有率が30体積%以上である、請求項1~7のいずれかに記載の繊維強化樹脂基材。
- 熱可塑性樹脂(A)および熱可塑性樹脂(B)の融点がともに250℃以上である、および/または熱可塑性樹脂(A)および熱可塑性樹脂(B)のガラス転移温度がともに100℃以上である、請求項1~8のいずれかに記載の繊維強化樹脂基材。
- 前記熱可塑性樹脂(A)および前記熱可塑性樹脂(B)の熱分解開始温度が480℃以上である、請求項1~9のいずれかに記載の繊維強化樹脂基材。
- 前記強化繊維として、ウィルヘルミー法によって測定される表面自由エネルギーが10~50mJ/m2である強化繊維を用いてなる、請求項1~10のいずれかに記載の繊維強化樹脂基材。
- 前記強化繊維の引張強度が5.5GPa以上である、請求項1~11のいずれかに記載の繊維強化樹脂基材。
- 前記強化繊維の繊維方向に対し45度の方向で切断した厚み方向の断面において、前記界面が形成する断面曲線の、JIS B0601(2001)で定義される粗さ平均長さRSmが100μm以下であり、粗さ平均高さRcが3.5μm以上である、請求項1~12のいずれかに記載の繊維強化樹脂基材。
- 前記繊維強化樹脂基材の厚みが500μm以下である、請求項1~13のいずれかに記載の繊維強化樹脂基材。
- 請求項1~14のいずれかに記載の繊維強化樹脂基材を、熱可塑性樹脂(A)を表面に有する部材Aと熱可塑性樹脂(B)を表面に有する部材Bとの間に、繊維強化樹脂基材の、熱可塑性樹脂(A)層が部材Aの熱可塑性樹脂(A)と、熱可塑性樹脂(B)層が部材Bの熱可塑性樹脂(B)と接するように配置してなるプリフォーム。
- 請求項1~14のいずれかに記載の繊維強化樹脂基材を介して、熱可塑性樹脂(A)を表面に有する部材Aと、熱可塑性樹脂(B)を表面に有する部材Bとが、繊維強化樹脂基材の熱可塑性樹脂(A)層が部材Aの熱可塑性樹脂(A)と、熱可塑性樹脂(B)層が部材Bの熱可塑性樹脂(B)と溶着されてなる一体化成形品。
- 前記部材Aおよび/または前記部材Bが繊維強化樹脂である、請求項16に記載の一体化成形品。
- 連続強化繊維に、熱可塑性樹脂(A)と熱可塑性樹脂(B)とが含浸されてなる繊維強化樹脂基材の製造方法あって、
連続強化繊維シートの一方の面から熱可塑性樹脂(A)を含浸させ、熱可塑性樹脂(A)層が一方の面に露出し、かつ連続強化繊維シートが他方の面に露出したセミプレグを得た後に、該セミプレグの前記他方の面から熱可塑性樹脂(B)を含浸させるか、または、連続強化繊維シートの一方の面から熱可塑性樹脂(B)を含浸させ、熱可塑性樹脂(B)層が一方の面に露出し、かつ連続強化繊維シートが他方の面に露出したセミプレグを得た後に、該セミプレグの前記他方の面から熱可塑性樹脂(A)を含浸させることを特徴とする繊維強化樹脂基材の製造方法。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202180076388.1A CN116438229A (zh) | 2020-11-20 | 2021-11-15 | 纤维增强树脂基材、预制件、一体化成型品及纤维增强树脂基材的制造方法 |
EP21894583.0A EP4249541A1 (en) | 2020-11-20 | 2021-11-15 | Fiber-reinforced resin substrate, preform, integrated molded article, and method for producing fiber-reinforced resin substrate |
JP2021572588A JPWO2022107709A1 (ja) | 2020-11-20 | 2021-11-15 | |
US18/035,366 US20230405967A1 (en) | 2020-11-20 | 2021-11-15 | Fiber-reinforced resin substrate, preform, integrated product, and method for producing fiber-reinforced resin substrate |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020-193154 | 2020-11-20 | ||
JP2020193154 | 2020-11-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022107709A1 true WO2022107709A1 (ja) | 2022-05-27 |
Family
ID=81708060
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2021/041849 WO2022107709A1 (ja) | 2020-11-20 | 2021-11-15 | 繊維強化樹脂基材、プリフォーム、一体化成形品および繊維強化樹脂基材の製造方法 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20230405967A1 (ja) |
EP (1) | EP4249541A1 (ja) |
JP (1) | JPWO2022107709A1 (ja) |
CN (1) | CN116438229A (ja) |
TW (1) | TW202231739A (ja) |
WO (1) | WO2022107709A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3974465A4 (en) * | 2019-05-23 | 2023-09-27 | Toray Industries, Inc. | FIBER-REINFORCED RESIN SUBSTRATE, INTEGRATED MOLDED ARTICLE, AND METHOD FOR MANUFACTURING FIBER-REINFORCED RESIN SUBSTRATE |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014103658A1 (ja) | 2012-12-26 | 2014-07-03 | 東レ株式会社 | 繊維強化樹脂シート、一体化成形品およびそれらの製造方法 |
JP2014125532A (ja) * | 2012-12-26 | 2014-07-07 | Toray Ind Inc | 繊維強化樹脂シート、成形体、一体化成形品およびそれらの製造方法、ならびに実装部材 |
JP2016003257A (ja) * | 2014-06-16 | 2016-01-12 | 東レ株式会社 | 繊維強化樹脂シート、一体化成形品およびそれらの製造方法 |
JP2020029534A (ja) * | 2018-08-24 | 2020-02-27 | 東レ株式会社 | 繊維強化熱可塑性樹脂基材およびそれを用いた成形品 |
JP2020192809A (ja) * | 2019-05-23 | 2020-12-03 | 東レ株式会社 | 繊維強化樹脂基材、一体化成形品および繊維強化樹脂基材の製造方法 |
-
2021
- 2021-11-15 US US18/035,366 patent/US20230405967A1/en active Pending
- 2021-11-15 JP JP2021572588A patent/JPWO2022107709A1/ja active Pending
- 2021-11-15 CN CN202180076388.1A patent/CN116438229A/zh active Pending
- 2021-11-15 WO PCT/JP2021/041849 patent/WO2022107709A1/ja active Application Filing
- 2021-11-15 EP EP21894583.0A patent/EP4249541A1/en active Pending
- 2021-11-18 TW TW110142895A patent/TW202231739A/zh unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014103658A1 (ja) | 2012-12-26 | 2014-07-03 | 東レ株式会社 | 繊維強化樹脂シート、一体化成形品およびそれらの製造方法 |
JP2014125532A (ja) * | 2012-12-26 | 2014-07-07 | Toray Ind Inc | 繊維強化樹脂シート、成形体、一体化成形品およびそれらの製造方法、ならびに実装部材 |
JP2016003257A (ja) * | 2014-06-16 | 2016-01-12 | 東レ株式会社 | 繊維強化樹脂シート、一体化成形品およびそれらの製造方法 |
JP2020029534A (ja) * | 2018-08-24 | 2020-02-27 | 東レ株式会社 | 繊維強化熱可塑性樹脂基材およびそれを用いた成形品 |
JP2020192809A (ja) * | 2019-05-23 | 2020-12-03 | 東レ株式会社 | 繊維強化樹脂基材、一体化成形品および繊維強化樹脂基材の製造方法 |
Also Published As
Publication number | Publication date |
---|---|
JPWO2022107709A1 (ja) | 2022-05-27 |
EP4249541A1 (en) | 2023-09-27 |
CN116438229A (zh) | 2023-07-14 |
US20230405967A1 (en) | 2023-12-21 |
TW202231739A (zh) | 2022-08-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP3894035B2 (ja) | 炭素繊維強化基材、それからなるプリフォームおよび複合材料 | |
JP5320742B2 (ja) | 複合プリプレグ基材の製造方法、積層基材および繊維強化プラスチック | |
RU2713325C2 (ru) | Гибридная вуаль в качестве промежуточного слоя в композиционных материалах | |
JP6699986B2 (ja) | プリフォーム、および一体化シート材料の製造方法 | |
JP7047923B2 (ja) | プリプレグ、積層体および成形品 | |
JP7524763B2 (ja) | プリプレグ、積層体および成形品 | |
WO2017179721A1 (ja) | 繊維強化樹脂中間材、繊維強化樹脂成形体及び繊維強化樹脂中間材の製造方法 | |
WO2022107709A1 (ja) | 繊維強化樹脂基材、プリフォーム、一体化成形品および繊維強化樹脂基材の製造方法 | |
WO2021131382A1 (ja) | 複合プリプレグおよび繊維強化樹脂成形体 | |
WO2020235490A1 (ja) | 繊維強化樹脂基材、一体化成形品および繊維強化樹脂基材の製造方法 | |
EP3974466A1 (en) | Prepreg, laminate, and molded article | |
JP2020192809A (ja) | 繊維強化樹脂基材、一体化成形品および繊維強化樹脂基材の製造方法 | |
EP3974467A1 (en) | Prepreg, laminate, and molded article | |
WO2021131347A1 (ja) | プリプレグ、成形体および一体化成形体 | |
US20230017689A1 (en) | Prepreg, laminate, and integrated product | |
JP7088433B1 (ja) | プリプレグ、成形体および一体化成形体 | |
EP4074765A1 (en) | Prepreg, laminate, and integrated molded article | |
EP4074761A1 (en) | Prepreg, laminate and integrated molded article | |
JP7537126B2 (ja) | 繊維強化樹脂基材の製造方法、繊維強化樹脂基材、およびその一体化成形品 | |
TWI843916B (zh) | 預浸漬物、積層體及一體成形品 | |
WO2022107563A1 (ja) | 繊維強化樹脂および一体化成形品 | |
JP2004277955A (ja) | 一方向性強化布帛、プリフォームおよび複合材料 | |
JP2021098318A (ja) | 繊維強化樹脂材料、一体化成形品、および一体化成形品の製造方法 | |
JP2021098319A (ja) | 繊維強化樹脂成形体および複合成形体 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ENP | Entry into the national phase |
Ref document number: 2021572588 Country of ref document: JP Kind code of ref document: A |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 21894583 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 18035366 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 2021894583 Country of ref document: EP Effective date: 20230620 |