WO2023038011A1 - 硬化性樹脂材料、樹脂成形体及び樹脂成形体の製造方法 - Google Patents
硬化性樹脂材料、樹脂成形体及び樹脂成形体の製造方法 Download PDFInfo
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- WO2023038011A1 WO2023038011A1 PCT/JP2022/033296 JP2022033296W WO2023038011A1 WO 2023038011 A1 WO2023038011 A1 WO 2023038011A1 JP 2022033296 W JP2022033296 W JP 2022033296W WO 2023038011 A1 WO2023038011 A1 WO 2023038011A1
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- composition
- resin molding
- powder
- urethane resin
- reinforcing long
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- UAHVVXPNJLRMPX-UHFFFAOYSA-N 3-chloro-1,2,3-trifluoroprop-1-ene Chemical compound FC=C(F)C(F)Cl UAHVVXPNJLRMPX-UHFFFAOYSA-N 0.000 description 1
- VPWNQTHUCYMVMZ-UHFFFAOYSA-N 4,4'-sulfonyldiphenol Chemical compound C1=CC(O)=CC=C1S(=O)(=O)C1=CC=C(O)C=C1 VPWNQTHUCYMVMZ-UHFFFAOYSA-N 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 241000251468 Actinopterygii Species 0.000 description 1
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 1
- 239000005058 Isophorone diisocyanate Substances 0.000 description 1
- PEYZIFREGNMXEE-UHFFFAOYSA-N N=C=O.N=C=O.C1CCCCC1C(C)(C)C1CCCCC1 Chemical compound N=C=O.N=C=O.C1CCCCC1C(C)(C)C1CCCCC1 PEYZIFREGNMXEE-UHFFFAOYSA-N 0.000 description 1
- INWVTRVMRQMCCM-UHFFFAOYSA-N N=C=O.N=C=O.C=1C=CC=CC=1C(C)(C)C1=CC=CC=C1 Chemical compound N=C=O.N=C=O.C=1C=CC=CC=1C(C)(C)C1=CC=CC=C1 INWVTRVMRQMCCM-UHFFFAOYSA-N 0.000 description 1
- QORUGOXNWQUALA-UHFFFAOYSA-N N=C=O.N=C=O.N=C=O.C1=CC=C(C(C2=CC=CC=C2)C2=CC=CC=C2)C=C1 Chemical compound N=C=O.N=C=O.N=C=O.C1=CC=C(C(C2=CC=CC=C2)C2=CC=CC=C2)C=C1 QORUGOXNWQUALA-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004113 Sepiolite Substances 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229920002323 Silicone foam Polymers 0.000 description 1
- 239000007983 Tris buffer Substances 0.000 description 1
- FMRLDPWIRHBCCC-UHFFFAOYSA-L Zinc carbonate Chemical compound [Zn+2].[O-]C([O-])=O FMRLDPWIRHBCCC-UHFFFAOYSA-L 0.000 description 1
- KXBFLNPZHXDQLV-UHFFFAOYSA-N [cyclohexyl(diisocyanato)methyl]cyclohexane Chemical compound C1CCCCC1C(N=C=O)(N=C=O)C1CCCCC1 KXBFLNPZHXDQLV-UHFFFAOYSA-N 0.000 description 1
- FQUDJLCHPSGLII-UHFFFAOYSA-N [cyclohexyl(dimethoxy)methyl]cyclohexane Chemical compound C1CCCCC1C(OC)(OC)C1CCCCC1 FQUDJLCHPSGLII-UHFFFAOYSA-N 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000005215 alkyl ethers Chemical class 0.000 description 1
- OJMOMXZKOWKUTA-UHFFFAOYSA-N aluminum;borate Chemical compound [Al+3].[O-]B([O-])[O-] OJMOMXZKOWKUTA-UHFFFAOYSA-N 0.000 description 1
- VCNTUJWBXWAWEJ-UHFFFAOYSA-J aluminum;sodium;dicarbonate Chemical compound [Na+].[Al+3].[O-]C([O-])=O.[O-]C([O-])=O VCNTUJWBXWAWEJ-UHFFFAOYSA-J 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- UDHRJOZZFCCAHH-UHFFFAOYSA-N anthracene-1,4,5,8-tetrol Chemical compound C1=CC(O)=C2C=C3C(O)=CC=C(O)C3=CC2=C1O UDHRJOZZFCCAHH-UHFFFAOYSA-N 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- HIFVAOIJYDXIJG-UHFFFAOYSA-N benzylbenzene;isocyanic acid Chemical class N=C=O.N=C=O.C=1C=CC=CC=1CC1=CC=CC=C1 HIFVAOIJYDXIJG-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 150000001642 boronic acid derivatives Chemical class 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- JXRVKYBCWUJJBP-UHFFFAOYSA-L calcium;hydrogen sulfate Chemical class [Ca+2].OS([O-])(=O)=O.OS([O-])(=O)=O JXRVKYBCWUJJBP-UHFFFAOYSA-L 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 150000001722 carbon compounds Chemical class 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- MYWGVEGHKGKUMM-UHFFFAOYSA-N carbonic acid;ethene Chemical compound C=C.C=C.OC(O)=O MYWGVEGHKGKUMM-UHFFFAOYSA-N 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
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- 239000003610 charcoal Substances 0.000 description 1
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- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 239000011162 core material Substances 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- PDXRQENMIVHKPI-UHFFFAOYSA-N cyclohexane-1,1-diol Chemical compound OC1(O)CCCCC1 PDXRQENMIVHKPI-UHFFFAOYSA-N 0.000 description 1
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- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 1
- GDVKFRBCXAPAQJ-UHFFFAOYSA-A dialuminum;hexamagnesium;carbonate;hexadecahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Al+3].[Al+3].[O-]C([O-])=O GDVKFRBCXAPAQJ-UHFFFAOYSA-A 0.000 description 1
- FNILDPCCWMWNTE-UHFFFAOYSA-N dicyclohexylmethanediol Chemical compound C1CCCCC1C(O)(O)C1CCCCC1 FNILDPCCWMWNTE-UHFFFAOYSA-N 0.000 description 1
- KIQKWYUGPPFMBV-UHFFFAOYSA-N diisocyanatomethane Chemical compound O=C=NCN=C=O KIQKWYUGPPFMBV-UHFFFAOYSA-N 0.000 description 1
- NJLLQSBAHIKGKF-UHFFFAOYSA-N dipotassium dioxido(oxo)titanium Chemical compound [K+].[K+].[O-][Ti]([O-])=O NJLLQSBAHIKGKF-UHFFFAOYSA-N 0.000 description 1
- SZXQTJUDPRGNJN-UHFFFAOYSA-N dipropylene glycol Chemical compound OCCCOCCCO SZXQTJUDPRGNJN-UHFFFAOYSA-N 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 1
- VLKZOEOYAKHREP-UHFFFAOYSA-N hexane Substances CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 1
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 1
- 229910001701 hydrotalcite Inorganic materials 0.000 description 1
- 229960001545 hydrotalcite Drugs 0.000 description 1
- 125000002768 hydroxyalkyl group Chemical group 0.000 description 1
- 150000002460 imidazoles Chemical class 0.000 description 1
- 125000002883 imidazolyl group Chemical group 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- QTBFPMKWQKYFLR-UHFFFAOYSA-N isobutyl chloride Chemical compound CC(C)CCl QTBFPMKWQKYFLR-UHFFFAOYSA-N 0.000 description 1
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical group OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 description 1
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 description 1
- ULYZAYCEDJDHCC-UHFFFAOYSA-N isopropyl chloride Chemical compound CC(C)Cl ULYZAYCEDJDHCC-UHFFFAOYSA-N 0.000 description 1
- HFGPZNIAWCZYJU-UHFFFAOYSA-N lead zirconate titanate Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ti+4].[Zr+4].[Pb+2] HFGPZNIAWCZYJU-UHFFFAOYSA-N 0.000 description 1
- 229910052451 lead zirconate titanate Inorganic materials 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 1
- 229910052901 montmorillonite Inorganic materials 0.000 description 1
- LGDNSGSJKBIVFG-UHFFFAOYSA-N n,n-dimethyl-2-piperazin-1-ylethanamine Chemical compound CN(C)CCN1CCNCC1 LGDNSGSJKBIVFG-UHFFFAOYSA-N 0.000 description 1
- SNMVRZFUUCLYTO-UHFFFAOYSA-N n-propyl chloride Chemical compound CCCCl SNMVRZFUUCLYTO-UHFFFAOYSA-N 0.000 description 1
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 1
- FVXBCDWMKCEPCL-UHFFFAOYSA-N nonane-1,1-diol Chemical compound CCCCCCCCC(O)O FVXBCDWMKCEPCL-UHFFFAOYSA-N 0.000 description 1
- OEIJHBUUFURJLI-UHFFFAOYSA-N octane-1,8-diol Chemical compound OCCCCCCCCO OEIJHBUUFURJLI-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 150000005526 organic bromine compounds Chemical class 0.000 description 1
- 150000005527 organic iodine compounds Chemical class 0.000 description 1
- AHHWIHXENZJRFG-UHFFFAOYSA-N oxetane Chemical compound C1COC1 AHHWIHXENZJRFG-UHFFFAOYSA-N 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- MSSNHSVIGIHOJA-UHFFFAOYSA-N pentafluoropropane Chemical compound FC(F)CC(F)(F)F MSSNHSVIGIHOJA-UHFFFAOYSA-N 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- QCDYQQDYXPDABM-UHFFFAOYSA-N phloroglucinol Chemical compound OC1=CC(O)=CC(O)=C1 QCDYQQDYXPDABM-UHFFFAOYSA-N 0.000 description 1
- 229960001553 phloroglucinol Drugs 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920001610 polycaprolactone Polymers 0.000 description 1
- 239000004632 polycaprolactone Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920006389 polyphenyl polymer Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- ZUFQCVZBBNZMKD-UHFFFAOYSA-M potassium 2-ethylhexanoate Chemical compound [K+].CCCCC(CC)C([O-])=O ZUFQCVZBBNZMKD-UHFFFAOYSA-M 0.000 description 1
- 235000011056 potassium acetate Nutrition 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 239000008262 pumice Substances 0.000 description 1
- KIDHWZJUCRJVML-UHFFFAOYSA-N putrescine Chemical compound NCCCCN KIDHWZJUCRJVML-UHFFFAOYSA-N 0.000 description 1
- 229940079877 pyrogallol Drugs 0.000 description 1
- 150000003335 secondary amines Chemical group 0.000 description 1
- 229910052624 sepiolite Inorganic materials 0.000 description 1
- 235000019355 sepiolite Nutrition 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 239000010703 silicon Substances 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
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 239000013514 silicone foam Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- KXCAEQNNTZANTK-UHFFFAOYSA-N stannane Chemical compound [SnH4] KXCAEQNNTZANTK-UHFFFAOYSA-N 0.000 description 1
- 229910000080 stannane Inorganic materials 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000001384 succinic acid Substances 0.000 description 1
- 150000004763 sulfides Chemical class 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 150000003606 tin compounds Chemical class 0.000 description 1
- 150000003609 titanium compounds Chemical class 0.000 description 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
- 150000004072 triols Chemical class 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- 239000011667 zinc carbonate Substances 0.000 description 1
- 235000004416 zinc carbonate Nutrition 0.000 description 1
- 229910000010 zinc carbonate Inorganic materials 0.000 description 1
- PAPBSGBWRJIAAV-UHFFFAOYSA-N ε-Caprolactone Chemical compound O=C1CCCCCO1 PAPBSGBWRJIAAV-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
-
- 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
-
- 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
- C08J5/24—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
-
- 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
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/40—Glass
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/52—Phosphorus bound to oxygen only
- C08K5/521—Esters of phosphoric acids, e.g. of H3PO4
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B3/00—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails
- E01B3/44—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from other materials only if the material is essential
Definitions
- the present invention relates to a curable resin material containing a polyol compound and an isocyanate compound.
- the present invention also relates to a method for producing a resin molded article using the curable resin material.
- resin moldings are sometimes used instead of wood.
- resin-molded sleepers are sometimes used in place of wooden sleepers and concrete sleepers.
- Patent Document 1 discloses a foamed resin molded article containing a large number of long fibers aligned in one direction and a filler.
- the content of the filler is 15% by weight or less
- the expansion ratio of the foamed resin is 2.0 to 4.0 times
- the average particle size of the filler is the average cell size of the foamed resin. 20% or less of the diameter.
- Patent Document 2 describes a mixing step of obtaining a first composition by mixing a polyol compound, an isocyanate compound and a filler, and impregnating the first composition between reinforcing long fibers to obtain a curable composition.
- a method for producing a resin molding is disclosed, which includes an impregnation step of obtaining a resin composition and a curing step of curing the curable resin composition in a mold.
- the specific gravity of the filler is less than 4, and the average circularity of the filler is 0.65 or more.
- a resin molding may be produced by impregnating a reinforcing long fiber bundle aligned in one direction with a composition containing a filler. By using fillers and reinforcing long fiber bundles in the resin material, the mechanical strength of the resulting resin molding can be enhanced.
- the viscosity of the composition containing the filler may become excessively high.
- the formulation of conventional compositions may result in excessively high viscosities of compositions containing fillers.
- the viscosity of the composition containing the filler is excessively high, there is a problem that the composition cannot be satisfactorily impregnated into the portion between the reinforcing long fibers. If the portion between the reinforcing long fibers cannot be sufficiently impregnated with the composition, the specific gravity of the resulting resin molding may vary, and physical properties such as mechanical strength of the resulting resin molding may deteriorate. be.
- the viscosity of the composition containing the filler is excessively high, the composition becomes difficult to mix by stirring, so that the polyol compound and the isocyanate compound cannot be well reacted, and the unreacted polyol compound is may remain. In this case, there is a problem that the flame resistance of the resulting resin molding is lowered.
- a curable resin material containing a polyol compound, an isocyanate compound, a powder of a urethane resin molding containing a urethane resin and glass fibers, and reinforcing long fibers has an isocyanate index of 110 to 120.
- a curable resin material is provided which is:
- the content of the powder of the urethane resin molding is 10 parts by weight or more and 30 parts by weight or less with respect to 100 parts by weight of the polyol compound.
- the fiber length of the glass fibers contained in the powder of the urethane resin molding is 1000 ⁇ m or less.
- a resin molded body which is a molded body of the curable resin material described above.
- the resin molded article is a foamed resin molded article.
- the step of obtaining a first composition containing a polyol compound, an isocyanate compound, and a powder of a urethane resin molding An impregnation step of impregnating aligned reinforcing long fiber bundles to obtain a second composition, and a curing step of curing the second composition in a mold, wherein the isocyanate of the second composition is provided.
- a method for producing a resin molding having an index of 110 or more and 120 or less is provided.
- powder of the urethane resin molded article in the first composition is added to 100 parts by weight of the polyol compound in the first composition. is 10 parts by weight or more and 30 parts by weight or less.
- the curing step is a foaming curing step of foaming and curing the second composition in the mold.
- the method for producing a resin molded article includes: between the step of obtaining the first composition and the impregnation step, adding the first composition to the reinforcing long fiber bundle in which the reinforcing long fibers are aligned in one direction.
- the first composition in the spraying step, is sprayed onto the reinforcing long fiber bundles while advancing the reinforcing long fiber bundles in one direction.
- the method for producing a resin molded article includes a step of obtaining powder of the urethane resin molded article from a urethane resin molded article containing a urethane resin and glass fibers. Prepare.
- the urethane resin molded body used to obtain the powder of the urethane resin molded body is a recycled product.
- the curable resin material according to the present invention contains a polyol compound, an isocyanate compound, a powder of a urethane resin molding containing a urethane resin and glass fibers, and reinforcing long fibers.
- the isocyanate index of the curable material according to the present invention is 110 or more and 120 or less. Since the curable resin material according to the present invention has the above configuration, it is possible to suppress variations in the specific gravity of the resulting resin molding.
- the method for producing a resin molded product according to the present invention comprises the steps of: obtaining a first composition containing a polyol compound, an isocyanate compound, and a powder of a urethane resin molded product; An impregnation step of obtaining a second composition by impregnating reinforcing long fiber bundles aligned in one direction, and a curing step of curing the second composition in a mold.
- the second composition has an isocyanate index of 110 or more and 120 or less. Since the method for producing a resin molded article according to the present invention has the above configuration, it is possible to suppress variations in the specific gravity of the obtained resin molded article.
- FIG. 1 is a diagram for explaining a method for manufacturing a resin molding according to one embodiment of the present invention.
- the curable resin material (hereinafter sometimes abbreviated as "resin material") according to the present invention is a urethane resin molded product containing a polyol compound (A), an isocyanate compound (B), a urethane resin, and glass fibers. It contains powder (C) and reinforcing long fibers (D).
- the isocyanate index of the resin material according to the present invention is 110 or more and 120 or less.
- the resin material according to the present invention has the above configuration, the polyol compound (A), the isocyanate compound (B), and the powder (C) of the urethane resin molding containing the urethane resin and the glass fiber are mixed.
- the viscosity of the composition containing (the composition containing components other than the reinforcing long fibers (D)) can be easily adjusted.
- the portion between the reinforcing long fibers (D) can be satisfactorily impregnated with the composition, and variations in the specific gravity of the resulting resin molding can be suppressed.
- the resin material according to the present invention has the above configuration, the reaction efficiency between the polyol compound (A) and the isocyanate compound (B) can be increased, and the unreacted polyol compound (A) can be can be reduced. As a result, flame resistance can be improved in the obtained resin molding.
- the isocyanate compound (B) is contained in an appropriately adjusted amount, so that the curing reaction can proceed well and the amount of residual unreacted polyol compound (A) can be reduced. be able to.
- the isocyanate index is preferably 111 or more, more preferably 112 or more, still more preferably 113 or more, preferably 119 or less, more preferably 118 or less, and still more preferably 117 or less.
- the isocyanate index is equal to or more than the lower limit and equal to or less than the upper limit, the flame retardancy of the obtained resin molded article can be further enhanced, and variations in the specific gravity of the resin molded article can be further suppressed. .
- the isocyanate index means a value obtained by dividing the total number of isocyanate groups possessed by the isocyanate compound (B) in the resin material by the total number of active hydrogen groups in the resin material and multiplying the value by 100. do. That is, the isocyanate index is a value calculated by the following formula (1).
- the active hydrogen group in the resin material includes, for example, the hydroxyl group of the polyol compound (A) and water as the foaming agent.
- Isocyanate index (X/Y) x 100 (1) X: total number of isocyanate groups possessed by the isocyanate compound (B) in the resin material Y: total number of active hydrogen groups in the resin material
- the resin material contains a polyol compound (A).
- a polyol compound is a compound having two or more hydroxyl groups (--OH groups).
- the number of hydroxyl groups in the polyol compound (A) may be two, two or more, three, three or more, or four. may be four or more.
- the number of hydroxyl groups in the polyol compound (A) may be 6 or less, 5 or less, or 4 or less.
- polyol compound (A) examples include polylactone polyols, polycarbonate polyols, aromatic polyols, alicyclic polyols, aliphatic polyols, polyester polyols, and polyether polyols.
- the polyol compound may be a polymer polyol. Only one kind of the polyol compound (A) may be used, or two or more kinds thereof may be used in combination.
- polylactone polyols examples include polypropiolactone glycol, polycaprolactone glycol, and polyvalerolactone glycol.
- Examples of the above-mentioned polycarbonate polyol include a dealcoholization reaction product of a hydroxyl group-containing compound and a carbonate compound.
- Examples of the hydroxyl group-containing compound include ethylene glycol, propylene glycol, butanediol, pentanediol, hexanediol, octanediol, and nonanediol.
- Examples of the carbonate compound include diethylene carbonate and dipropylene carbonate.
- aromatic polyols examples include bisphenol A, bisphenol F, phenol novolac, and cresol novolac.
- alicyclic polyols examples include cyclohexanediol, methylcyclohexanediol, isophoronediol, dicyclohexylmethanediol, and dimethyldicyclohexylmethanediol.
- aliphatic polyols examples include ethylene glycol, propylene glycol, butanediol, pentanediol, and hexanediol.
- polyester polyols examples include dehydration condensates of polybasic acids and polyhydric alcohols, ring-opening polymers of lactones, and condensates of hydroxycarboxylic acids and polyhydric alcohols.
- the polybasic acid examples include adipic acid, azelaic acid, sebacic acid, terephthalic acid, isophthalic acid, and succinic acid.
- the polyhydric alcohol examples include bisphenol A, ethylene glycol, 1,2-propylene glycol, 1,4-butanediol, diethylene glycol, 1,6-hexane glycol, neopentyl glycol and the like.
- lactone examples include ⁇ -caprolactone and ⁇ -methyl- ⁇ -caprolactone.
- the hydroxycarboxylic acid examples include castor oil and reaction products of castor oil and ethylene glycol.
- polyether polyol examples include ring-opening polymers of an active hydrogen compound having two or more active hydrogen atoms and an alkylene oxide.
- alkylene oxide examples include ethylene oxide, propylene oxide and tetrahydrofuran. It is preferable that the active hydrogen compound has a small molecular weight.
- the active hydrogen compound include diol compounds such as bisphenol A, ethylene glycol, propylene glycol, butylene glycol, and 1,6-hexanediol; triol compounds such as glycerin and trimethylolpropane; amines such as ethylenediamine and butylenediamine. compounds and the like.
- polymer polyol examples include a graft polymer obtained by graft-polymerizing an unsaturated organic compound to a polyol compound, polybutadiene polyol, modified polyol of polyhydric alcohol, and hydrogenated products thereof.
- polyol compound in the graft polymer examples include aromatic polyols, alicyclic polyols, aliphatic polyols, polyester polyols, and polyether polyols.
- unsaturated organic compound in the graft polymer examples include acrylonitrile, styrene, and methyl (meth)acrylate.
- Examples of the modified polyols of polyhydric alcohols include reaction-modified products of polyhydric alcohols and alkylene oxides.
- Examples of polyhydric alcohols include trihydric alcohols such as glycerin and trimethylolpropane; tetrahydric to octahydric alcohol; phenol, phloroglucin, cresol, pyrogallol, catechol, hydroquinone, bisphenol A, bisphenol F, bisphenol S, 1-hydroxynaphthalene, 1,3,6,8-tetrahydroxynaphthalene, anthrol , 1,4,5,8-tetrahydroxyanthracene, and phenolic compounds such as 1-hydroxypyrene; polybutadiene polyol; castor oil polyol; (co)polymer of hydroxyalkyl (meth)acrylate; functional groups of 2 or more and 100 or less) polyols; condensates of phenol and formaldehyde (novolacs);
- the alkylene oxide examples include ethylene oxide, 1,2-propylene oxide, 1,3-propylene oxide, 1,2-butylene oxide, and 1,4-butylene oxide.
- the alkylene oxide is preferably 1,2-propylene oxide, ethylene oxide or 1,2-butylene oxide, and is 1,2-propylene oxide or ethylene oxide. is more preferable. Only one kind of the alkylene oxide may be used, or two or more kinds thereof may be used in combination.
- the form of addition when two or more of the above alkylene oxides are used may be block addition, random addition, or both block addition and random addition.
- the polyol compound (A) is preferably a polyol compound having a hydroxyl value of 490 mgKOH/g or more and 580 mgKOH/g or less, more preferably a polyol compound having a hydroxyl value of 490 mgKOH/g or more and 530 mgKOH/g or less. , polyester polyol or polyether polyol. In this case, the dispersibility of the urethane resin molding powder (C) in the resin material can be further enhanced.
- the resin material contains an isocyanate compound.
- An isocyanate compound is a compound having an isocyanate group (--NCO group).
- the number of isocyanate groups in the isocyanate compound (B) may be 1, 2, 2 or more, 3, or 3 or more. There may be one, four, or four or more. The number of isocyanate groups in the isocyanate compound (B) may be 6 or less, 5 or less, or 4 or less.
- the number of isocyanate groups in the isocyanate compound (B) is preferably 2 or more. That is, the isocyanate compound (B) is preferably a polyisocyanate compound (an isocyanate compound having two or more isocyanate groups).
- Examples of the isocyanate compound (B) include aromatic polyisocyanates, alicyclic polyisocyanates, and aliphatic polyisocyanates. Only one kind of the isocyanate compound (B) may be used, or two or more kinds thereof may be used in combination.
- aromatic polyisocyanate examples include phenylene diisocyanate, tolylene diisocyanate, xylylene diisocyanate, diphenylmethane diisocyanate, dimethyldiphenylmethane diisocyanate, triphenylmethane triisocyanate, naphthalene diisocyanate, and polymethylene polyphenyl polyisocyanate.
- alicyclic polyisocyanate examples include cyclohexyl diisocyanate, methylcyclohexyl diisocyanate, isophorone diisocyanate, dicyclohexylmethane diisocyanate, and dimethyldicyclohexylmethane diisocyanate.
- aliphatic polyisocyanate examples include methylene diisocyanate, ethylene diisocyanate, propylene diisocyanate, tetramethylene diisocyanate, and hexamethylene diisocyanate.
- the isocyanate compound (B) is preferably diphenylmethane diisocyanate or modified diphenylmethane diisocyanate, more preferably diphenylmethane diisocyanate, because it is easily available and convenient.
- the polyol compound (A) and the isocyanate compound (B) can be used in appropriate amounts so as to efficiently form urethane bonds.
- the content of the isocyanate compound (B) is preferably 100 parts by weight or more, more preferably 120 parts by weight or more, still more preferably 130 parts by weight or more, preferably 180 parts by weight with respect to 100 parts by weight of the polyol compound (A). It is not more than 160 parts by weight, more preferably not more than 150 parts by weight.
- the reaction efficiency between the polyol compound (A) and the isocyanate compound (B) can be increased, and the unreacted polyol compound (A) or unreacted isocyanate compound (B) can be further reduced. As a result, it is possible to form a resin molding having a good flexural modulus.
- the resin material includes a powder (C) of a urethane resin molding containing urethane resin and glass fibers.
- a urethane resin molding powder (C) can be obtained from a urethane resin molding containing a urethane resin and glass fibers.
- the powder (C) of the urethane resin molded body functions as a filler.
- the powder (C) of the urethane resin molding only one type may be used, or two or more types may be used in combination.
- the powder (C) of the urethane resin molding for example, waste pieces (waste) generated when processing a urethane resin composition containing a urethane resin and glass fiber or a urethane resin molding into a predetermined shape are used. be able to. Waste pieces (conventionally, waste) generated when a urethane resin composition or a urethane resin molded article is processed into a predetermined shape are also called a urethane resin molded article. Further, the powder (C) of the urethane resin molded body may be a molded body molded into an unintended shape. In this case, the environmental load can be reduced and the cost can be lowered. In addition, the powder (C) of the urethane resin molded article may be a powder of a foamed resin molded article.
- the powder (C) of the urethane resin molded body is cut powder of the urethane resin molded body.
- the above chips include, for example, powder (cutting waste) generated when cutting the urethane resin molded body, powder (grinding dust) generated when the surface of the urethane resin molded body is sanded, and urethane resin molded body It is powder (cutting waste) etc. generated when a part is scraped off. It is preferable that the powder (C) of the urethane resin molded body is cut waste, grinding dust, or cutting waste of the urethane resin molded body.
- the powder (C) of the urethane resin molded body is a recycled product of the urethane resin molded body.
- the urethane resin molded article used to obtain the powder (C) of the urethane resin molded article is a recycled product.
- the powder (C) of the urethane resin molded article should be replaced with the powder of the resin molded article (the resin of the present invention) produced in another lot.
- the urethane resin molded body for obtaining the powder (C) of the urethane resin molded body is a resin molded body manufactured in a different lot (another lot product of the resin molded body manufactured from the resin material of the present invention).
- the environmental load can be further reduced, and the cost can be further reduced.
- the shape of the powder (C) of the urethane resin molding may be spherical or non-spherical, and may be polygonal, plate-like, scale-like, or the like.
- the particle diameter D90 of the powder (C) (filler) of the urethane resin molding is preferably 50 ⁇ m or more, more preferably 100 ⁇ m or more, still more preferably 150 ⁇ m or more, particularly preferably 200 ⁇ m or more, preferably 1000 ⁇ m or less, and more preferably 1000 ⁇ m or less. It is preferably 900 ⁇ m or less, more preferably 700 ⁇ m or less, still more preferably 500 ⁇ m or less, particularly preferably 450 ⁇ m or less, and most preferably 430 ⁇ m or less.
- the particle size D90 of the powder (C) of the urethane resin molding is at least the lower limit and no more than the upper limit, the effects of the present invention can be exhibited more effectively.
- the particle size D90 of the powder (C) of the urethane resin molding can be adjusted by performing a classification process or the like.
- the particle size D50 of the powder (C) of the urethane resin molding is preferably 30 ⁇ m or more, more preferably 50 ⁇ m or more, preferably 150 ⁇ m or less, and more preferably 130 ⁇ m or less.
- the particle size D50 of the powder (C) of the urethane resin molding is above the lower limit and below the upper limit, the effects of the present invention can be exhibited more effectively.
- the particle size D90 and the particle size D50 of the powder (C) of the urethane resin molded product are, respectively, from the smaller particle size side in the volume-based cumulative fraction of particle size distribution measurement by a laser diffraction particle size distribution measuring device. It means the value of the diameter corresponding to 90% of the total, and the value of the diameter corresponding to 50% of the total from the smaller particle diameter side.
- the shape of the powder (C) of the urethane resin molded product having the above particle size D 90 and particle size D 50 may or may not be spherical, and may be polygonal, plate-like, scale-like, or the like. may be in the shape of
- the fiber length of the glass fiber contained in the powder (C) of the urethane resin molding is preferably 2000 ⁇ m or less, more preferably 1000 ⁇ m or less, and even more preferably 700 ⁇ m or less.
- the fiber length of the glass fiber contained in the powder (C) of the urethane resin molding may be 10 ⁇ m or longer, or 100 ⁇ m or longer.
- the fiber length of the glass fiber can be adjusted by performing a classification process or the like.
- the fiber length of the glass fiber can be measured by photographing the filler contained in the powder (C) of the urethane resin molding with a microscope and using commercially available image analysis software for the microscope photograph.
- the fiber length of the glass fiber is the average value of the fiber lengths of 100 or more arbitrarily selected glass fibers.
- a new region is photographed with a microscope until the number of glass fibers reaches 100 or more.
- the content of the powder (C) of the urethane resin molding is preferably 5 parts by weight or more, more preferably 10 parts by weight or more, and still more preferably 12 parts by weight or more with respect to 100 parts by weight of the polyol compound (A). , particularly preferably 15 parts by weight or more.
- the content of the powder (C) of the urethane resin molding is preferably 50 parts by weight or less, more preferably 30 parts by weight or less, and still more preferably 25 parts by weight or less with respect to 100 parts by weight of the polyol compound (A). , particularly preferably 23 parts by weight or less, most preferably 20 parts by weight or less.
- the content of the powder (C) in the urethane resin molded article is at least the above lower limit, the mechanical strength of the obtained resin molded article can be further increased.
- the content of the powder (C) in the urethane resin molding is equal to or less than the upper limit, it becomes easier to impregnate the portion between the reinforcing long fibers (D) with a composition containing components other than the reinforcing long fibers, and the obtained resin molding. Variation in the specific gravity of the body can be reduced, and the bending elastic modulus can be increased.
- the content of the urethane resin molding powder (C) is preferably 2 parts by weight or more, more preferably 4 parts by weight, with respect to a total of 100 parts by weight of the polyol compound (A) and the isocyanate compound (B). parts or more, preferably 20 parts by weight or less, more preferably 15 parts by weight or less.
- the content of the powder (C) in the urethane resin molded article is at least the above lower limit, the mechanical strength of the obtained resin molded article can be further enhanced.
- the content of the powder (C) in the urethane resin molding is equal to or less than the upper limit, it becomes easier to impregnate the portion between the reinforcing long fibers (D) with a composition containing components other than the reinforcing long fibers, and the obtained resin molding. Variation in the specific gravity of the body can be reduced, and the bending elastic modulus can be increased.
- the resin material contains reinforcing long fibers (D).
- Reinforcing long fibers are reinforcing fibers and long fibers. Reinforcing fibers are fibrous materials with a certain strength.
- As reinforcing fibers for example, carbon fibers, glass fibers, aramid fibers, etc. are known.
- the fiber length of the long fibers is, for example, an average fiber length of 50 mm or more.
- the reinforcing long fibers may be a reinforcing long fiber sheet.
- the reinforcing long fibers (D) may be monofilaments or fibrillated fibers (substances with whiskers protruding fibers).
- Examples of the reinforcing long fibers (D) include carbon long fibers, glass long fibers, aramid long fibers, polyester fibers, polyamide fibers, and long reinforcing fibers.
- the reinforcing long fibers only one type may be used, or two or more types may be used in combination.
- the reinforcing long fibers (D) are preferably glass long fibers.
- the long glass fiber is a fibrous material obtained by melting glass and pulling it into a fibrous form.
- the fiber length of the reinforcing long fibers (D) is preferably 50 mm or longer, more preferably 70 mm or longer.
- the reinforcing long fibers can be cut into a desired size after pultrusion molding, and the fiber length of the reinforcing long fibers can be appropriately changed according to the length to be cut.
- the upper limit is not particularly limited. From the viewpoint of improving dimensional accuracy, the fiber length of the reinforcing long fibers (D) may be 10 m or less.
- the reinforcing long fibers (D) can be cut by impregnating the reinforcing long fibers (D) with a composition containing components other than the reinforcing long fibers (D). It can make it harder to get caught and entangled.
- the resin molding can be molded by pultrusion molding even if the proportion of the reinforcing long fibers (D) is increased.
- the reinforcing long fibers (D) for example, a string-like fiber obtained by lightly adhering a strand such as roving or yarn to a binder is preferably used.
- the reinforcing long fibers (D) are preferably roving fibers obtained by arranging monofilaments.
- the fiber diameter of the monofilament is preferably 1 ⁇ m or more, more preferably 2 ⁇ m or more, still more preferably 10 ⁇ m or more, preferably 50 ⁇ m or less, more preferably 40 ⁇ m or less, and still more preferably 20 ⁇ m or less.
- the above fiber diameter is preferably an average diameter.
- the average diameter is the number average diameter, which is the arithmetic mean of the fiber diameters of 100 randomly selected fibers.
- the fiber diameter means the diameter of the equivalent circle diameter of the cross section along the direction perpendicular to the length direction of the fiber.
- the content of the reinforcing long fibers (D) is preferably 200 parts by weight or more, more preferably 250 parts by weight or more, preferably 350 parts by weight or less, and more preferably 300 parts by weight or less.
- the flexural modulus of the obtained resin molding can be further increased due to the content of the reinforcing long fibers (D).
- the content of the reinforcing long fibers (D) is equal to or less than the above upper limit, it becomes easier to impregnate the portion between the reinforcing long fibers (D) with the composition containing components other than the reinforcing long fibers, and the specific gravity of the resulting resin molding is can be reduced, and the bending elastic modulus can be increased.
- the content of the reinforcing long fibers (D) is preferably 70 parts by weight or more, more preferably 90 parts by weight or more, with respect to a total of 100 parts by weight of the polyol compound (A) and the isocyanate compound (B), It is preferably 150 parts by weight or less, more preferably 120 parts by weight or less.
- the content of the reinforcing long fibers (D) is equal to or higher than the above lower limit, the flexural modulus of the resin molding obtained due to the content of the reinforcing long fibers (D) can be further increased.
- the content of the reinforcing long fibers (D) is equal to or less than the above upper limit, it becomes easier to impregnate the portion between the reinforcing long fibers (D) with the composition containing components other than the reinforcing long fibers, and the specific gravity of the resulting resin molding is can be reduced, and the bending elastic modulus can be increased.
- the content of the reinforcing long fibers (D) is preferably 80 parts by weight or more, more preferably 90 parts by weight or more, and preferably It is 150 parts by weight or less, more preferably 120 parts by weight or less, and still more preferably 110 parts by weight or less.
- the content of the reinforcing long fibers (D) is equal to or more than the lower limit and equal to or less than the upper limit, it is possible to further increase the flexural modulus of the resin molding obtained due to the content of the reinforcing long fibers (D). can.
- the content of the reinforcing long fibers (D) is equal to or less than the above upper limit, it becomes easier to impregnate the portion between the reinforcing long fibers (D) with the composition containing components other than the reinforcing long fibers, and the specific gravity of the resulting resin molding is can be reduced, and the bending elastic modulus can be increased.
- the resin material may or may not contain a foaming agent.
- a foamed resin molding can be obtained.
- Foamed resin moldings have the advantage of being lightweight.
- foaming agent examples include water and organic halogen compounds.
- the foaming agent is preferably water because it is easily available and excellent in convenience. Water acts as a blowing agent by reacting with the isocyanate compound (B) to generate CO2 . Only one type of the foaming agent may be used, or two or more types may be used in combination.
- organic halogen compounds examples include organic chlorine compounds, organic fluorine compounds, organic bromine compounds, and organic iodine compounds.
- the above organic halogen compound may be an organic halogen compound in which all of the hydrogen atoms are substituted with halogen atoms, or may be an organic halogen compound in which some of the hydrogen atoms are substituted with halogen atoms.
- the organic halogen compound is preferably an organic chlorine compound or an organic fluorine compound. preferable.
- Examples of the organic chlorine compounds include saturated organic chlorine compounds and unsaturated organic chlorine compounds.
- Examples of the saturated organic chlorine compound include dichloroethane, propyl chloride, isopropyl chloride, butyl chloride, isobutyl chloride, pentyl chloride, and isopentyl chloride.
- the organic chlorine compound is preferably a saturated organic chlorine compound, and the number of carbon atoms is is a saturated organochlorine compound with 2 to 5.
- organic fluorine compounds examples include saturated organic fluorine compounds and unsaturated organic fluorine compounds.
- saturated organic fluorine compounds include hydrofluorocarbons.
- hydrofluorocarbons include difluoromethane (HFC32), 1,1,1,2,2-pentafluoroethane (HFC125), 1,1,1-trifluoroethane (HFC143a), 1,1,2,2- Tetrafluoroethane (HFC134), 1,1,1,2-tetrafluoroethane (HFC134a), 1,1-difluoroethane (HFC152a), 1,1,1,2,3,3,3-heptafluoropropane (HFC227ea ), 1,1,1,3,3-pentafluoropropane (HFC245fa), 1,1,1,3,3-pentafluorobutane (HFC365mfc) and 1,1,1,2,2,3,4, 5,5,5-decafluoropentane (HFC4310mee) and the like.
- Examples of the unsaturated organic fluorine compounds include hydrofluoroolefins.
- the hydrofluoroolefins include 2,3,3,3-tetrafluoropropene (HFO-1234yf), 1,3,3,3-tetrafluoropropene (HFO-1234ze) (E and Z isomers), and 1 , 1,1,4,4,4-hexafluoro-2-butene (HFO1336mzz) (E and Z isomers), and the like.
- examples of the organic fluorine compound include compounds having a chlorine atom, a fluorine atom, and a double bond.
- examples of the compound having a chlorine atom, a fluorine atom and a double bond include 1,2-dichloro-1,2-difluoroethene (E and Z isomers) and hydrochlorofluoroolefins.
- hydrochlorofluoroolefins examples include 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd) (E and Z isomers), 1-chloro-2,3,3-trifluoropropene (HCFO- 1233yd) (E and Z isomers), 1-(4)chloro-1,3,3-trifluoropropene (HCFO-1233zb) (E and Z isomers), 2-chloro-1,3,3-tri Fluoropropene (HCFO-1233xe) (E and Z isomers), 2-chloro-2,2,3-trifluoropropene (HCFO-1233xc), 2-chloro-3,3,3-trifluoropropene (HCFO- 1233xf), 3-chloro-1,2,3-trifluoropropene (HCFO-1233ye) (E and Z isomers), 3-chloro-1,1,2-trifluoropropene (HCFO-1233yc), 3, 3-dichlor
- the organic halogen compound is hydrochlorofluoroolefin, hydrofluorocarbon or hydrofluoroolefin.
- the organic halogen compound is hydrochlorofluoroolefin, hydrofluorocarbon or hydrofluoroolefin.
- the foaming agent can be used in an appropriate amount.
- the above resin material contains other components other than the components described above (polyol compound (A), isocyanate compound (B), urethane resin molding powder (C), reinforcing long fibers (D), and these five types of foaming agents). different components) may be included.
- the above-mentioned other components include catalysts, foam stabilizers, flame retardants, and powders (other fillers) other than the powder (C) of the urethane resin molding.
- Each of the above other components may be used alone or in combination of two or more.
- the resin material preferably contains a catalyst.
- the catalyst include urethanization catalysts and trimerization catalysts. Only one of the above catalysts may be used, or two or more thereof may be used in combination.
- the resin material preferably contains a urethanization catalyst.
- the urethanization catalyst promotes the reaction between the hydroxyl groups of the polyol compound and the isocyanate groups of the isocyanate compound, thereby promoting the formation of urethane bonds.
- the urethanization catalyst examples include organic tin compounds such as dibutyltin dimaleate, dibutyltin diuralate and dibutylbis(oleoyloxy)stannane, triethylamine, N-methylmorpholinebis(2-dimethylaminoethyl)ether, and N,N,N tertiary amine compounds such as ',N'',N''-pentamethyldiethylenetriamine, N,N,N'-trimethylaminoethyl-ethanolamine, bis(2-dimethylaminoethyl) ether, N-methyl, N '-Dimethylaminoethylpiperazine, imidazole compounds in which the secondary amine functional group in the imidazole ring is substituted with a cyanoethyl group, and the like. Only one kind of the urethanization catalyst may be used, or two or more kinds thereof may be used in combination.
- the urethanization catalyst can be used in an appropriate amount so that the polyol compound and the isocyanate compound react well.
- the trimerization catalyst promotes the trimerization reaction of the isocyanate groups of the isocyanate compound and promotes the formation of isocyanurate rings. Furthermore, the trimerization catalyst suppresses expansion of the resin molding during combustion.
- trimerization catalyst examples include aromatic compounds, alkali metal salts of carboxylic acids, quaternary ammonium salts of carboxylic acids, and quaternary ammonium salt/ethylene glycol mixtures.
- aromatic compounds include tris(dimethylaminomethyl)phenol, 2,4-bis(dimethylaminomethyl)phenol, and 2,4,6-tris(dialkylaminoalkyl)hexahydro-S-triazine.
- alkali metal salt of the above carboxylic acid examples include potassium acetate and potassium 2-ethylhexanoate. Only one kind of the trimerization catalyst may be used, or two or more kinds thereof may be used in combination.
- the trimerization catalyst can be used in an appropriate amount so that the trimerization reaction is favorably promoted.
- Foam stabilizer examples include polyoxyalkylene foam stabilizers such as polyoxyalkylene alkyl ethers, and silicone foam stabilizers such as organopolysiloxane.
- filler examples include powder fillers.
- the filler may be an organic powder, an inorganic powder, or a mixed powder of an organic powder and an inorganic powder. Only one kind of the filler may be used, or two or more kinds thereof may be used in combination.
- the filler examples include glass fiber scraps; carbonate compounds such as calcium carbonate, magnesium carbonate, zinc carbonate, and barium carbonate; minerals such as dawsonite, hydrotalcite, mica, imogolite, sericite, and gypsum fiber; calcium sulfate Sulfate compounds such as , barium sulfate, and magnesium sulfate; Silicate compounds such as calcium silicate; Clays such as talc, clay, montmorillonite, bentonite, activated clay, and sepiolite; Aluminum nitride, boron nitride, and silicon nitride, etc.
- carbon compounds such as carbon black, graphite, carbon balloon, and charcoal powder
- titanium compounds such as potassium titanate and lead zirconate titanate
- metal borate compounds such as aluminum borate
- sulfides such as molybdenum sulfide Carbide such as silicon carbide
- ash such as fly ash, coal ash, and shirasu balloon
- sand such as silica sand
- pyroclastic materials such as pumice stone; mentioned.
- the resin material comprises the polyol compound (A), the isocyanate compound (B), the urethane resin molding powder (C), the reinforcing long fibers (D), and these blended as necessary. It can be prepared by mixing other ingredients. A method for mixing each component is not particularly limited. A plurality of liquids containing one or more components may be prepared and mixed to obtain the resin material. Mixing of a plurality of liquids may be performed at the time of forming the resin molding. After the isocyanate compound (B) and the powder (C) of the urethane resin molding are mixed with the liquid containing the polyol compound (A), the reinforcing long fibers (D) may be impregnated with this liquid. .
- the powder (C) of the urethane resin molding is mixed with the liquid containing the polyol compound (A), then the isocyanate compound (B) is mixed, and then the reinforcing long fibers (D) are impregnated with this liquid. good too.
- a resin molded article according to the present invention is a molded article of the curable resin material described above.
- a resin molding can be obtained by molding the resin material.
- a resin molding can be obtained by heating the above resin material at 40° C. to 80° C. to mold and cure the material.
- the resin molded article may be a foamed resin molded article. When the resin molding is a foamed resin molding, the weight of the resin molding can be reduced.
- the above resin moldings can be used for applications such as buildings, vehicles/ships, railway facilities, water treatment facilities, factory facilities, fisheries/aquaculture facilities, electrical facilities, sports/park facilities, and civil engineering sites.
- the above-mentioned resin moldings are suitably used for balconies, floor materials, foundations, beams, joists, bundles, roofs, crosspieces, etc. in buildings.
- the above resin moldings are suitably used for joists, FFU ships, decks, bulkheads, truck bed materials, bridges, etc. in vehicles or ships.
- the above resin moldings are suitably used for sidewalk boards, large three-hoist protection boards, platforms, sleepers (bridges, bifurcations, regular, short), etc. in railway facilities.
- resin moldings are suitably used in water treatment facilities for cover lids, cut corners, weirs, flocculator blades, doors, louvers, rectifiers, baffles, partitions, sloped plates, and the like.
- the above resin moldings are suitably used for floorboards, corridors, pit lids, chemical tanks, water tanks, workbenches, frames, joists, pallets, freezers, etc. in factory facilities.
- the above resin moldings are suitably used for hatching tanks, aquaculture tanks, live fish tanks, corridors, etc. in aquaculture facilities.
- the above resin molding is suitably used for cleats, pipe pillows, etc. in electrical equipment.
- the above resin moldings are used in sports and park facilities such as pergolas, bridges, information boards, gazebos, back screens, tennis practice boards, scoreboards, floating piers, suspension bridges, promenades, core materials for skis, water wheels, and pool members. It is preferably used.
- the above resin moldings are suitably used for pressure plates, SEW earth retaining walls, etc. at civil engineering sites.
- the above resin molding is particularly suitable for use as sleepers.
- the sleeper may be, for example, a rectangular parallelepiped sleeper, or may be a sleeper including a rectangular parallelepiped main body and a protrusion projecting outward from the main body.
- the sleeper may have a length direction and a width direction. From the viewpoint of further improving the bending elastic modulus of the sleeper, the reinforcing long fibers are preferably arranged along the length direction of the sleeper (resin molding).
- the method for manufacturing a resin molded product according to the present invention includes the following steps. (1) A step of obtaining a first composition containing a polyol compound (A), an isocyanate compound (B), and a urethane resin molding powder (C). (2) An impregnation step of impregnating a reinforcing long fiber bundle in which reinforcing long fibers are aligned in one direction with the first composition to obtain a second composition. (3) a curing step of curing the second composition in the mold; The isocyanate index of the second composition is 110 or more and 120 or less. Since the method for producing a resin molded article according to the present invention has the above configuration, it is possible to suppress variations in the specific gravity of the obtained resin molded article. In addition, the portion between the reinforcing long fibers can be well impregnated with the composition containing the powder of the urethane resin molding.
- the first composition may or may not contain a foaming agent.
- the second composition may or may not contain a foaming agent.
- a foaming agent may or may not be used in the curing step.
- the curing step is preferably a foaming curing step of foaming and curing the second composition in the mold. In this case, the weight of the obtained resin molding can be reduced.
- the method for manufacturing the resin molded body includes a step of obtaining the powder (C) of the urethane resin molded body from the urethane resin molded body containing the urethane resin and the glass fiber.
- the shavings can be recycled and used as a filler. Therefore, the environmental load can be reduced and the cost can be reduced.
- the urethane resin molded article used for obtaining the powder (C) of the urethane resin molded article is a recycled product.
- the first composition is added so that the reinforcing long fibers are unidirectional. It is preferable to include a spraying step of spraying the reinforcing long fiber bundles that have been aligned.
- the first composition is sprayed onto the reinforcing long fiber bundles using a spraying device.
- FIG. 1 is a diagram for explaining a method for manufacturing a resin molding according to one embodiment of the present invention.
- the manufacturing apparatus 100 includes a hopper 11, a belt feeder 12, an extruder 4 with a built-in screw, a pump 43, a first raw material tank 21, a pump 22, a second raw material tank 31, a pump 51, and mixing and spraying.
- a device 5 a kneading plate 61, an impregnation plate 62, and a mold 63 having a heating part are provided.
- the manufacturing apparatus 100 includes a conveying means capable of advancing the reinforcing long fiber bundle 8 in one direction (from the left side to the right side in the figure).
- a powder (C) (filler 1) of the urethane resin molded product is obtained from the urethane resin molded product containing the urethane resin and the glass fiber. For example, chips of a urethane resin molding are put into a classifier 6 and classified to obtain the filler 1 .
- the urethane resin molded article may be, for example, waste pieces (conventionally, waste) generated when the urethane resin composition or the urethane resin molded article is processed into a predetermined shape.
- Step of obtaining the first composition Filler 1 is put into hopper 11 , then filler 1 is conveyed by belt feeder 12 and supplied to extruder 4 .
- the extruder 4 has twin screws in a cylinder.
- the first raw material 2 is put into the first raw material tank 21 and mixed.
- the first raw material 2 is a liquid containing a polyol compound.
- the first raw material 2 preferably contains a foaming agent.
- the first raw material 2 is supplied to the extruder 4 by the pump 22 .
- the filler 1 and the first raw material 2 are mixed by rotating the screw of the extruder 4, and a mixture of the filler 1 and the first raw material 2 (hereinafter referred to as "mixed liquid A" ) is obtained.
- the second raw material 3 is put into the second raw material tank 31.
- the second raw material 3 is an isocyanate compound.
- the second raw material 2 may contain a foaming agent.
- Mixed liquid A is supplied to mixing and spraying device 5 by pump 43 .
- the second raw material 3 is supplied to the mixing and spraying device 5 by the pump 51 .
- the mixed liquid A and the second raw material 3 are uniformly mixed, and the first composition 7 (polyol compound, isocyanate compound, filler 1 (urethane resin molding powder) and foaming agent A mixture of) is obtained.
- the mixed liquid A may contain a foaming agent
- the second raw material 3 may contain a foaming agent
- the foaming agent may be included when the mixed liquid A and the second raw material 3 are mixed. good.
- the first composition 7 is sprayed from the discharge port of the mixing and spraying device 5 onto the reinforcing long fiber bundles 8 (fiber bundles of reinforcing long fibers) in which the reinforcing long fibers are aligned in one direction.
- the first composition 7 is sprayed on the reinforcing long fiber bundles 8 while the reinforcing long fiber bundles 8 are advanced in one direction.
- the reinforcing long fibers are glass long fibers
- the reinforcing long fiber bundles 8 are glass long fiber bundles.
- the first composition 7 and the reinforcing long fiber bundle 8 are kneaded between a kneading plate 61 and an impregnated plate 62, and the first composition is applied to the portion between the reinforcing long fibers constituting the reinforcing long fiber bundle 8. 7 is impregnated.
- the impregnation plate 62 is a plate used for impregnation and a plate for impregnation.
- a second composition 81 (curable resin material, composite) in which the reinforcing long fiber bundles 8 are impregnated with the first composition 7 is obtained.
- the resin material is designed to have the first configuration, the first composition 7 is well impregnated into the portion between the reinforcing long fibers, and the first composition 7 is reinforced. Good retention in the inter-long fiber portion.
- the reinforcing long fiber bundle is impregnated with the first composition to obtain a second composition (curable resin material, composite).
- a second composition curable resin material, composite
- the first composition and the reinforcing long fiber bundle are separated between the kneading plate and the impregnation plate. It is preferable to be kneaded.
- an endless belt may be used to impregnate the reinforcing long fiber bundle with the first composition.
- the impregnation step it is preferable to impregnate the reinforcing long fiber bundle with the first composition while controlling the temperature of the first composition using a temperature controller.
- the temperature of the first composition is preferably 10° C. or higher, more preferably 15° C. or higher, even more preferably 18° C. or higher, and 30° C. or lower. is preferred, 25°C or lower is more preferred, and 22°C or lower is even more preferred.
- the temperature of the first composition in the impregnation step is equal to or higher than the lower limit, the viscosity of the first composition can be further lowered. Better impregnation is possible.
- the temperature of the first composition in the impregnation step is equal to or lower than the upper limit, unintended curing reaction can be suppressed.
- ⁇ Curing step (preferably foaming curing step)>
- the second composition 81 is transferred to the mold 63, and the second composition 81 is cured (preferably foamed and cured) in the mold 63 to form a resin molding (preferably foamed resin molding) can be obtained.
- a resin molding preferably foamed resin molding
- the second composition (curable resin material) in a mold provided in the molding passage.
- the second composition can be cured by heating a metal belt provided on the inner surface of the molding passage.
- the heating temperature of the mold is preferably 35° C. or higher, more preferably 40° C. or higher, still more preferably 45° C. or higher, preferably 100° C. or lower, more preferably 80° C. or lower, further preferably 60° C. °C or less, particularly preferably 55°C or less.
- the heating temperature of the mold is equal to or higher than the lower limit and equal to or lower than the upper limit, the resin material can be cured satisfactorily.
- the viscosity of the first composition at 20° C. and 20 rpm is preferably 10,000 cps or more, more preferably 15,000 cps or more, still more preferably 20,000 cps or more, particularly preferably 25,000 cps or more, preferably 45,000 cps or less, more preferably 40,000 cps or less. be.
- the viscosity is equal to or higher than the lower limit and equal to or lower than the upper limit, the portion between reinforcing long fibers can be impregnated with the first composition satisfactorily.
- the viscosity can be measured using, for example, a Brookfield viscometer.
- the content of the powder (C) of the urethane resin molding is preferably 4% by weight or more, more preferably 6% by weight or more, and preferably 9% by weight or less. Preferably, it is 7% by weight or less.
- the content of the powder (C) in the urethane resin molded article is at least the above lower limit, the mechanical strength of the obtained resin molded article can be further enhanced.
- the content of the powder (C) in the urethane resin molded body is equal to or less than the upper limit, it becomes easier to impregnate the portion between the reinforcing long fibers with the composition containing components other than the reinforcing long fibers, and the resulting resin molded body is obtained. Variation in specific gravity can be reduced, and bending elastic modulus can be increased.
- the content of the urethane resin molding powder (C) in the first composition is preferably 5 parts by weight with respect to 100 parts by weight of the polyol compound (A) in the first composition. Above, more preferably 10 parts by weight or more, still more preferably 12 parts by weight or more, and particularly preferably 15 parts by weight or more. With respect to 100 parts by weight of the polyol compound in the first composition, the content of the powder (C) of the urethane resin molded body in the first composition is preferably 50 parts by weight or less, or more. It is preferably 30 parts by weight or less, more preferably 25 parts by weight or less, particularly preferably 23 parts by weight or less, and most preferably 20 parts by weight or less.
- the content of the filler is at least the lower limit
- the mechanical strength of the obtained resin molding can be further enhanced.
- the content of the filler is equal to or less than the upper limit, it becomes easier to impregnate the portion between the reinforcing long fibers with the composition containing components other than the reinforcing long fibers, and the variation in the specific gravity of the resulting resin molding can be reduced. Also, the flexural modulus can be increased.
- the content of the urethane resin molding powder (C) in the first composition is preferably 5 parts by weight with respect to 100 parts by weight of the polyol compound (A) in the first composition. Above, more preferably 10 parts by weight or more, still more preferably 12 parts by weight or more, and particularly preferably 15 parts by weight or more.
- the content of the urethane resin molding powder (C) in the first composition is preferably 50 parts by weight with respect to 100 parts by weight of the polyol compound (A) in the first composition. 30 parts by weight or less, more preferably 25 parts by weight or less, particularly preferably 23 parts by weight or less, and most preferably 20 parts by weight or less.
- the content of the powder (C) in the urethane resin molded article is at least the above lower limit, the mechanical strength of the obtained resin molded article can be further enhanced.
- the content of the powder (C) in the urethane resin molding is equal to or less than the upper limit, it becomes easier to impregnate the portion between the reinforcing long fibers (D) with a composition containing components other than the reinforcing long fibers, and the obtained resin molding. Variation in the specific gravity of the body can be reduced, and the bending elastic modulus can be increased.
- the powder (C ) is preferably 2 parts by weight or more, more preferably 4 parts by weight or more, preferably 20 parts by weight or less, and more preferably 15 parts by weight or less.
- the content of the powder (C) in the urethane resin molded article is at least the above lower limit, the mechanical strength of the obtained resin molded article can be further enhanced.
- the content of the powder (C) in the urethane resin molding is equal to or less than the upper limit, it becomes easier to impregnate the portion between the reinforcing long fibers (D) with a composition containing components other than the reinforcing long fibers, and the obtained resin molding. Variation in the specific gravity of the body can be reduced, and the bending elastic modulus can be increased.
- the foaming agent may be contained in the first raw material, may be contained in the second raw material, or may be contained in both the first raw material and the second raw material. It may be The first raw material may be free of blowing agents and the second raw material may be free of blowing agents.
- the first composition, the first raw material, and the second raw material are each other than the polyol compound (A), the isocyanate compound (B), the urethane resin molding powder (C), the reinforcing long fibers, and the foaming agent.
- the first composition may contain a catalyst and may contain a foam stabilizer.
- the catalyst may be contained in the first raw material, may be contained in the second raw material, or may be contained in both the first raw material and the second raw material.
- the first feedstock may be catalyst-free and the second feedstock may be catalyst-free.
- the foam stabilizer may be contained in the first raw material, may be contained in the second raw material, or may be contained in both the first raw material and the second raw material.
- the first material may not contain a foam stabilizer, and the second material may not contain a foam stabilizer.
- Polyol compound (A) Polyether polyol to which propylene oxide is added (“SBU Polyol J610” manufactured by Sumika Covestro Urethane Co., Ltd.)
- Long glass fiber Long glass fiber made into a roving by arranging a large number of monofilaments with a fiber diameter of 10 ⁇ m to 20 ⁇ m
- Powder of resin molding containing urethane resin (UR powder (C) in the table, particle size D50 : 1000 ⁇ m or less, fiber length of glass fiber: 1000 ⁇ m or less)
- the particle size D90 and particle size D50 of the filler were measured using a laser diffraction particle size analyzer.
- Catalyst a mixture of dipropylene glycol and triethylenediamine
- Example 1 A resin molding was produced by the method shown in FIG. As a filler, powder (C) of a resin molding containing urethane resin was used. Further, as the first raw material shown in FIG. 1, a liquid containing a polyol compound, a foaming agent, a catalyst and a foam stabilizer was used. A polyisocyanate compound was used as the second raw material shown in FIG.
- ⁇ Step of obtaining the first composition The filler charged into the hopper was supplied to the extruder by a belt feeder. Also, the first raw material put into the first raw material tank was supplied to the extruder by a pump. The filler and the first raw material were mixed in an extruder to obtain a mixed liquid (mixed liquid A) of the filler and the first raw material. Mixture A was then pumped into the mixing and spraying device. Also, the second raw material put into the second raw material tank was supplied to the mixing and spraying device by the pump. Mixed liquid A and the second raw material were uniformly mixed in a mixing and spraying device to obtain a first composition. Table 1 shows the content of each component in the first composition.
- the first composition was sprayed from the discharge port of the mixing and spraying device onto a reinforcing long fiber bundle (a fiber bundle of reinforcing long fibers) in which the reinforcing long fibers were aligned in one direction.
- the first composition was sprayed on the reinforcing long fiber bundle while advancing the reinforcing long fiber bundle in one direction.
- the first composition and the reinforcing long fiber bundle are kneaded between a kneading plate and an impregnated plate under conditions of 15° C. to 25° C., and the first composition is rubbed between each reinforcing long fiber constituting the reinforcing long fiber bundle. to obtain a second composition in which the reinforcing long fiber bundles were impregnated with the first composition.
- Table 1 shows the content of the reinforcing long fibers in the second composition (content per 100 parts by weight of the polyol compound).
- ⁇ Curing step (foaming curing step)> The second composition was transferred to a mold, and cured (foaming cured) in the mold to obtain a resin molded article (foamed resin molded article).
- Examples 2 to 13 and Comparative Examples 1 to 8 The type of filler, the content of each component in the first composition, and the content of reinforcing long fibers in the second composition (content per 100 parts by weight of polyol compound) are shown in Tables 1 to 6.
- a resin molded product was obtained in the same manner as in Example 1, except that it was set to .
- Viscosity of the First Composition The viscosity of the first composition at 20° C. and 20 rpm was measured using a B-type viscometer (“TVC-10 type viscometer” manufactured by Toki Sangyo Co., Ltd.).
- Impregnability of the first composition into the portion between the reinforcing long fibers After impregnating the reinforcing long fibers with the first composition using a lab-scale impregnation device, the first composition is impregnated between the reinforcing long fibers.
- the area impregnated in the part (impregnated area) was measured using image analysis software (ImageJ).
- ImageJ image analysis software
- a resin molding obtained by impregnating reinforcing long fibers with the first composition was cut into a regular hexahedron having a side of 20 mm. Ten samples of the cut resin molding were prepared, and the specific gravity of each sample was measured. The standard deviation of the specific gravity of the measured 10 samples was obtained. Incidentally, it means that the smaller the variation in the specific gravity, the better the impregnating property of the first composition into the portion between the reinforcing long fibers.
- the standard deviation of specific gravity is less than 0.11, and the impregnated area ratio is 99% or more
- the standard deviation of specific gravity is less than 0.11, but the impregnated area ratio is less than 99%, or
- the standard deviation of the specific gravity is 0.11 or more and less than 0.13, and the impregnation area ratio is 99% or more
- the standard deviation of the specific gravity is 0.11 or more and less than 0.13, and the impregnation area ratio is 99% is less than ⁇ : the standard deviation of the specific gravity is 0.13 or more
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Abstract
Description
本発明に係る硬化性樹脂材料(以下、「樹脂材料」と略記することがある)は、ポリオール化合物(A)と、イソシアネート化合物(B)と、ウレタン樹脂及びガラス繊維を含むウレタン樹脂成形体の粉末(C)と、強化長繊維(D)とを含む。本発明に係る樹脂材料のイソシアネートインデックスが110以上120以下である。
X:樹脂材料中のイソシアネート化合物(B)が有する全イソシアネート基の数
Y:樹脂材料中の活性水素基の合計数
上記樹脂材料は、ポリオール化合物(A)を含む。ポリオール化合物とは、2個以上の水酸基(-OH基)を有する化合物である。
上記樹脂材料は、イソシアネート化合物を含む。イソシアネート化合物とは、イソシアネート基(-NCO基)を有する化合物である。
上記樹脂材料は、ウレタン樹脂及びガラス繊維を含むウレタン樹脂成形体の粉末(C)を含む。ウレタン樹脂及びガラス繊維を含むウレタン樹脂成形体から、ウレタン樹脂成形体の粉末(C)を得ることができる。上記ウレタン樹脂成形体の粉末(C)は、充填材としての役割を果たす。上記ウレタン樹脂成形体の粉末(C)は、1種のみが用いられてもよく、2種以上が併用されてもよい。
上記樹脂材料は、強化長繊維(D)を含む。強化長繊維は、強化繊維であり、長繊維である。強化繊維は、一定の強度を持った繊維状物である。強化繊維としては、例えば、炭素繊維、ガラス繊維、アラミド繊維等が知られている。長繊維の繊維長は、例えば、平均繊維長が50mm以上である。上記強化長繊維は、強化長繊維シートであってもよい。
上記樹脂材料は、発泡剤を含んでいてもよく、含んでいなくてもよい。上記樹脂材料が発泡剤を含む場合には、発泡樹脂成形体を得ることができる。発泡樹脂成形体は、軽量であるという利点を有する。
上記樹脂材料は、上述した成分以外の他の成分(ポリオール化合物(A)、イソシアネート化合物(B)、ウレタン樹脂成形体の粉末(C)、強化長繊維(D)、及び発泡剤のこれら5種とは異なる成分)を含んでいてもよい。
上記樹脂材料は、触媒を含むことが好ましい。上記触媒としては、ウレタン化触媒、及び三量化触媒等が挙げられる。上記触媒は、1種のみが用いられてもよく、2種以上が併用されてもよい。
上記ウレタン化触媒は、1種のみが用いられてもよく、2種以上が併用されてもよい。
上記整泡剤としては、ポリオキシアルキレンアルキルエーテル等ポリオキシアルキレン整泡剤、及びオルガノポリシロキサン等のシリコーン整泡剤等が挙げられる。
上記充填材としては、粉末状の充填材が挙げられる。上記充填材を用いることにより、気泡壁の補強効果が効果的に発揮される。また、上記充填材を用いることにより、コストを低く抑えることができる。上記充填材は、有機粉末であってもよく、無機粉末であってもよく、有機粉末と無機粉末との混合粉末であってもよい。上記充填材は、1種のみが用いられてもよく、2種以上が併用されてもよい。
上記樹脂材料は、上記ポリオール化合物(A)と、上記イソシアネート化合物(B)と、上記ウレタン樹脂成形体の粉末(C)と、上記強化長繊維(D)と、必要に応じて配合されるこれら以外の成分とを混合することで調製できる。各成分の混合方法は、特に限定されない。1又は複数の成分を含む複数の液を調製し、複数の液を混合して、樹脂材料を得てもよい。複数の液の混合は、樹脂成形体の形成時に行われてもよい。上記ポリオール化合物(A)を含む液に、上記イソシアネート化合物(B)と上記ウレタン樹脂成形体の粉末(C)とを混合した後、この液を上記強化長繊維(D)に含浸させてもよい。上記ポリオール化合物(A)を含む液に上記ウレタン樹脂成形体の粉末(C)を混合し、次いで、上記イソシアネート化合物(B)を混合した後、この液を強化長繊維(D)に含浸させてもよい。
本発明に係る樹脂成形体は、上述した硬化性樹脂材料の成形体である。上記樹脂材料を成形することにより、樹脂成形体を得ることができる。例えば、上記樹脂材料を40℃~80℃で加熱して、成形及び硬化させることにより、樹脂成形体を得ることができる。上記樹脂成形体は、発泡樹脂成形体であってもよい。上記樹脂成形体が発泡樹脂成形体である場合には、該樹脂成形体を軽量にすることができる。
以下の樹脂成形体の製造方法の欄で説明する樹脂成形体の各材料((1)ポリオール化合物、(A)、イソシアネート化合物(B)、ウレタン樹脂成形体の粉末(C)及び発泡剤など)の詳細は、上記硬化性樹脂材料の欄で説明した各材料と同じである。
ウレタン樹脂及びガラス繊維を含むウレタン樹脂成形体から、上記ウレタン樹脂成形体の粉末(C)(充填材1)を得る。例えば、ウレタン樹脂成形体の切粉を分級機6に投入して分級処理を行い、充填材1を得る。この工程において、上記ウレタン樹脂成形体は、例えば、ウレタン樹脂組成物又はウレタン樹脂成形体を所定の形状に加工等する際に発生する屑片(従来は廃棄物)であってもよい。
充填材1がホッパー11に投入され、次いで、充填材1がベルトフィーダー12によって運搬されて押出機4に供給される。押出機4は、シリンダ内に2軸のスクリューを備える。また、第1原料2が第1原料タンク21に投入され、混合される。第1原料2は、ポリオール化合物を含む液である。第1原料2は、発泡剤を含むことが好ましい。第1原料2は、ポンプ22によって押出機4に供給される。押出機4では、充填材1と第1原料2とが、押出機4のスクリューの回転により混合され、充填材1と第1原料2との混合液(以降、「混合液A」と記載することがある)が得られる。
第1の組成物7は、混合散布装置5の吐出口から、強化長繊維が一方向に引き揃えられた強化長繊維束8(強化長繊維の繊維束)に散布される。強化長繊維束8を一方向に進行させながら、第1の組成物7が強化長繊維束8に散布される。本実施形態では、強化長繊維はガラス長繊維であり、強化長繊維束8は、ガラス長繊維束である。
第1の組成物7と強化長繊維束8とは、揉み板61と含浸板62との間で揉まれ、強化長繊維束8を構成する強化長繊維の間の部分に第1の組成物7が含浸される。含浸板62は、含浸に用いられる板であり、含浸用板である。このようにして、第1の組成物7が強化長繊維束8に含浸された第2の組成物81(硬化性樹脂材料、複合体)が得られる。本発明では、上記樹脂材料が上記第1の構成を備えるように設計されているため、第1の組成物7が強化長繊維間部分に良好に含浸され、かつ第1の組成物7が強化長繊維間部分に良好に保持される。
第2の組成物81を金型63に移送し、金型63内で第2の組成物81を硬化(好ましくは発泡硬化)させて、金型63の形状に対応する樹脂成形体(好ましくは発泡樹脂成形体)を得ることができる。なお、第2の組成物81を金型63に順次移送することで、樹脂成形体を連続的に製造することができる。
上記第1の組成物の20℃及び20rpmでの粘度は、好ましくは10000cps以上、より好ましくは15000cps以上、更に好ましくは20000cps以上、特に好ましくは25000cps以上、好ましくは45000cps以下、より好ましくは40000cps以下である。上記粘度が上記下限以上及び上記上限以下であると、上記第1の組成物を強化長繊維間部分に良好に含浸させることができる。
プロピレンオキサイドが付加されたポリエーテルポリオール(住化コベストロウレタン社製「SBU ポリオール J610」)
ジフェニルメタンジイソシアネート(住化コベストロウレタン社製「44V20L」)
ガラス長繊維(繊維径10μm~20μmのモノフィラメントを多数引き揃えてロービングにしたガラス長繊維)
<分級工程>
別のロットで製造された樹脂成形体(リサイクル品、ウレタン樹脂を含む樹脂成形体)の切削屑を分級処理して、以下のウレタン樹脂を含む樹脂成形体の粉末を得た。
珪砂
フライアッシュ
水
触媒:ジプロピレングリコールとトリエチレンジアミンとの混合物
シリコンオイル(東レダウシリコン社製「SZ-1729」)
図1に示す方法で、樹脂成形体を作製した。なお、充填材として、ウレタン樹脂を含む樹脂成形体の粉末(C)を用いた。また、図1に示す第1原料として、ポリオール化合物と発泡剤と触媒と整泡剤とを含む液を用いた。また、図1に示す第2原料として、ポリイソシアネート化合物を用いた。
ホッパーに投入された充填材をベルトフィーダーによって押出機に供給した。また、第1原料タンクに投入された第1原料をポンプによって押出機に供給した。押出機にて、充填材と第1原料とを混合し、充填材と第1原料との混合液(混合液A)を得た。次いで、混合液Aをポンプによって混合散布装置へ供給した。また、第2原料タンクに投入された第2原料をポンプによって混合散布装置へ供給した。混合散布装置にて、混合液Aと第2原料とを均一に混合し、第1の組成物を得た。なお、第1の組成物中の各成分の含有量を表1に示す。
第1の組成物を、混合散布装置の吐出口から、強化長繊維が一方向に引き揃えられた強化長繊維束(強化長繊維の繊維束)に散布した。なお、強化長繊維束を一方向に進行させながら、第1の組成物を強化長繊維束に散布した。
第1の組成物と強化長繊維束とを、15℃~25℃の条件で、揉み板と含浸板との間で揉みこみ、強化長繊維束を構成する各強化長繊維の間に第1の組成物を含浸させて、第1の組成物が強化長繊維束に含浸された第2の組成物を得た。なお、第2の組成物中の強化長繊維の含有量(ポリオール化合物100重量部に対する含有量)を表1に示す。
第2の組成物を金型に移送し、金型内で第2の組成物を硬化(発泡硬化)させて、樹脂成形体(発泡樹脂成形体)を得た。
充填材の種類及び第1の組成物中の各成分の含有量、並びに、第2の組成物中の強化長繊維の含有量(ポリオール化合物100重量部に対する含有量)を表1~6のように設定したこと以外は、実施例1と同様にして、樹脂成形体を得た。
充填材を用いなかったこと、及び第1の組成物中の各成分の含有量を表3のように設定したこと以外は、実施例1と同様にして、樹脂成形体を得た。
(1)樹脂成形体の比重のばらつき(標準偏差)
得られた樹脂成形体を、幅12.7mm、厚み12.7mm、長さ127mmに切断した。切断した樹脂成形体を10サンプル用意し、各サンプルの比重を測定した。測定した10サンプルの比重の標準偏差を求めた。なお、比重のばらつきが小さいほど、第1の組成物の強化長繊維間部分への含浸性が良好であったことを意味する。
第1の組成物の20℃及び20rpmでの粘度を、B型粘度計(東機産業社製「TVC-10形粘度計」)を用いて測定した。
ラボスケールの含浸装置を用いて、強化長繊維に第1の組成物を含浸後、第1の組成物が強化長繊維間部分に含浸している面積(含浸面積)を、画像解析ソフト(ImageJ)にて測定した。また、強化長繊維に第1の組成物を含浸させた樹脂成形体を一辺が20mmの正六面体状に切断した。切断した樹脂成形体を10サンプル用意し、各サンプルの比重を測定した。測定した10サンプルの比重の標準偏差を求めた。なお、比重のばらつきが小さいほど、第1の組成物の強化長繊維間部分への含浸性が良好であったことを意味する。
〇〇:比重の標準偏差が0.11未満であり、含浸面積割合が99%以上である
○:比重の標準偏差が0.11未満であるが、含浸面積割合が99%未満である、又は、比重の標準偏差が0.11以上0.13未満であり、含浸面積割合が99%以上である
△:比重の標準偏差が0.11以上0.13未満であり、含浸面積割合が99%未満である
×:比重の標準偏差が0.13以上である
2…第1原料
3…第2原料
4…押出機
5…混合散布装置
6…分級機
7…第1の組成物
8…強化長繊維束
10…樹脂成形体
11…ホッパー
12…ベルトフィーダー
21…第1原料タンク
22…ポンプ
31…第2原料タンク
43…ポンプ
51…ポンプ
61…揉み板
62…含浸板
63…金型
81…第2の組成物
100…製造装置
Claims (12)
- ポリオール化合物と、
イソシアネート化合物と、
ウレタン樹脂及びガラス繊維を含むウレタン樹脂成形体の粉末と、
強化長繊維とを含み、
硬化性樹脂材料のイソシアネートインデックスが110以上120以下である、硬化性樹脂材料。 - 前記ポリオール化合物100重量部に対して、前記ウレタン樹脂成形体の粉末の含有量が10重量部以上30重量部以下である、請求項1に記載の硬化性樹脂材料。
- 前記ウレタン樹脂成形体の粉末に含まれる前記ガラス繊維の繊維長が、1000μm以下である、請求項1又は2に記載の硬化性樹脂材料。
- 請求項1~3のいずれか1項に記載の硬化性樹脂材料の成形体である、樹脂成形体。
- 発泡樹脂成形体である、請求項4に記載の樹脂成形体。
- ポリオール化合物とイソシアネート化合物とウレタン樹脂成形体の粉末とを含む第1の組成物を得る工程と、
前記第1の組成物を、強化長繊維が一方向に引き揃えられた強化長繊維束に含浸させて、第2の組成物を得る含浸工程と、
金型内で前記第2の組成物を硬化させる硬化工程とを備え、
前記第2の組成物のイソシアネートインデックスが110以上120以下である、樹脂成形体の製造方法。 - 前記第1の組成物中の前記ポリオール化合物100重量部に対して、前記第1の組成物中の前記ウレタン樹脂成形体の粉末の含有量が10重量部以上30重量部以下である、請求項6に記載の樹脂成形体の製造方法。
- 前記硬化工程が、前記金型内で前記第2の組成物を発泡硬化させる発泡硬化工程である、請求項6又は7に記載の樹脂成形体の製造方法。
- 前記第1の組成物を得る工程と前記含浸工程との間に、前記第1の組成物を、強化長繊維が一方向に引き揃えられた強化長繊維束に散布する散布工程を備える、請求項6~8のいずれか1項に記載の樹脂成形体の製造方法。
- 前記散布工程において、前記強化長繊維束を一方向に進行させながら、前記第1の組成物を前記強化長繊維束に散布する、請求項9に記載の樹脂成形体の製造方法。
- ウレタン樹脂及びガラス繊維を含むウレタン樹脂成形体から、前記ウレタン樹脂成形体の粉末を得る工程を備える、請求項6~10のいずれか1項に記載の樹脂成形体の製造方法。
- 前記ウレタン樹脂成形体の粉末を得るために用いられるウレタン樹脂成形体が、リサイクル品である、請求項6~11のいずれか1項に記載の樹脂成形体の製造方法。
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