JP2004091748A - Flame retardant curing resin composition - Google Patents
Flame retardant curing resin composition Download PDFInfo
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- JP2004091748A JP2004091748A JP2002258549A JP2002258549A JP2004091748A JP 2004091748 A JP2004091748 A JP 2004091748A JP 2002258549 A JP2002258549 A JP 2002258549A JP 2002258549 A JP2002258549 A JP 2002258549A JP 2004091748 A JP2004091748 A JP 2004091748A
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- component
- flame
- resin composition
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- 239000003063 flame retardant Substances 0.000 title claims abstract description 33
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 239000011342 resin composition Substances 0.000 title claims abstract description 29
- -1 cyclic phosphazene compound Chemical class 0.000 claims abstract description 145
- 229920001955 polyphenylene ether Polymers 0.000 claims abstract description 33
- 239000003822 epoxy resin Substances 0.000 claims abstract description 30
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 30
- 229920005989 resin Polymers 0.000 claims abstract description 18
- 239000011347 resin Substances 0.000 claims abstract description 18
- GKTNLYAAZKKMTQ-UHFFFAOYSA-N n-[bis(dimethylamino)phosphinimyl]-n-methylmethanamine Chemical compound CN(C)P(=N)(N(C)C)N(C)C GKTNLYAAZKKMTQ-UHFFFAOYSA-N 0.000 claims description 19
- 239000000203 mixture Substances 0.000 claims description 15
- 238000002156 mixing Methods 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 125000003118 aryl group Chemical group 0.000 claims description 6
- 125000004122 cyclic group Chemical group 0.000 claims description 4
- 238000013329 compounding Methods 0.000 claims description 2
- 239000013638 trimer Substances 0.000 claims 1
- 150000002366 halogen compounds Chemical class 0.000 abstract description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 20
- 238000001723 curing Methods 0.000 description 20
- 238000000034 method Methods 0.000 description 17
- 239000004593 Epoxy Substances 0.000 description 16
- 230000000052 comparative effect Effects 0.000 description 15
- LSHROXHEILXKHM-UHFFFAOYSA-N n'-[2-[2-[2-(2-aminoethylamino)ethylamino]ethylamino]ethyl]ethane-1,2-diamine Chemical compound NCCNCCNCCNCCNCCN LSHROXHEILXKHM-UHFFFAOYSA-N 0.000 description 15
- 230000000694 effects Effects 0.000 description 10
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 9
- 229910052739 hydrogen Inorganic materials 0.000 description 9
- 239000001257 hydrogen Substances 0.000 description 9
- NXXYKOUNUYWIHA-UHFFFAOYSA-N 2,6-Dimethylphenol Chemical compound CC1=CC=CC(C)=C1O NXXYKOUNUYWIHA-UHFFFAOYSA-N 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 230000008033 biological extinction Effects 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 6
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 5
- 229920001577 copolymer Polymers 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- QQOMQLYQAXGHSU-UHFFFAOYSA-N 2,3,6-Trimethylphenol Chemical compound CC1=CC=C(C)C(O)=C1C QQOMQLYQAXGHSU-UHFFFAOYSA-N 0.000 description 4
- 229920000742 Cotton Polymers 0.000 description 4
- 125000000217 alkyl group Chemical group 0.000 description 4
- 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 4
- QWVGKYWNOKOFNN-UHFFFAOYSA-N o-cresol Chemical compound CC1=CC=CC=C1O QWVGKYWNOKOFNN-UHFFFAOYSA-N 0.000 description 4
- RIOQSEWOXXDEQQ-UHFFFAOYSA-N triphenylphosphine Chemical compound C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 RIOQSEWOXXDEQQ-UHFFFAOYSA-N 0.000 description 4
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 229910052783 alkali metal Inorganic materials 0.000 description 3
- 125000004432 carbon atom Chemical group C* 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 229910052736 halogen Inorganic materials 0.000 description 3
- 150000002367 halogens Chemical class 0.000 description 3
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 3
- 229920003986 novolac Polymers 0.000 description 3
- 150000003014 phosphoric acid esters Chemical class 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- AZQWKYJCGOJGHM-UHFFFAOYSA-N 1,4-benzoquinone Chemical compound O=C1C=CC(=O)C=C1 AZQWKYJCGOJGHM-UHFFFAOYSA-N 0.000 description 2
- 229940005561 1,4-benzoquinone Drugs 0.000 description 2
- FRASJONUBLZVQX-UHFFFAOYSA-N 1,4-naphthoquinone Chemical compound C1=CC=C2C(=O)C=CC(=O)C2=C1 FRASJONUBLZVQX-UHFFFAOYSA-N 0.000 description 2
- NADHCXOXVRHBHC-UHFFFAOYSA-N 2,3-dimethoxycyclohexa-2,5-diene-1,4-dione Chemical compound COC1=C(OC)C(=O)C=CC1=O NADHCXOXVRHBHC-UHFFFAOYSA-N 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 2
- 229920000877 Melamine resin Polymers 0.000 description 2
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Chemical compound P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 150000008065 acid anhydrides Chemical class 0.000 description 2
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 2
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 2
- 235000012211 aluminium silicate Nutrition 0.000 description 2
- 150000001408 amides Chemical class 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 description 2
- PXKLMJQFEQBVLD-UHFFFAOYSA-N bisphenol F Chemical compound C1=CC(O)=CC=C1CC1=CC=C(O)C=C1 PXKLMJQFEQBVLD-UHFFFAOYSA-N 0.000 description 2
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical compound C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 2
- 125000003700 epoxy group Chemical group 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 229920001519 homopolymer Polymers 0.000 description 2
- 239000003999 initiator Substances 0.000 description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 2
- 239000000347 magnesium hydroxide Substances 0.000 description 2
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 2
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 125000001424 substituent group Chemical group 0.000 description 2
- 239000000454 talc Substances 0.000 description 2
- 229910052623 talc Inorganic materials 0.000 description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 2
- RSJKGSCJYJTIGS-UHFFFAOYSA-N undecane Chemical compound CCCCCCCCCCC RSJKGSCJYJTIGS-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- GBZVNKQWXLVYNG-UHFFFAOYSA-N (3-phosphonooxyphenyl) dihydrogen phosphate Chemical compound OP(O)(=O)OC1=CC=CC(OP(O)(O)=O)=C1 GBZVNKQWXLVYNG-UHFFFAOYSA-N 0.000 description 1
- LTVUCOSIZFEASK-MPXCPUAZSA-N (3ar,4s,7r,7as)-3a-methyl-3a,4,7,7a-tetrahydro-4,7-methano-2-benzofuran-1,3-dione Chemical compound C([C@H]1C=C2)[C@H]2[C@H]2[C@]1(C)C(=O)OC2=O LTVUCOSIZFEASK-MPXCPUAZSA-N 0.000 description 1
- MUTGBJKUEZFXGO-OLQVQODUSA-N (3as,7ar)-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione Chemical compound C1CCC[C@@H]2C(=O)OC(=O)[C@@H]21 MUTGBJKUEZFXGO-OLQVQODUSA-N 0.000 description 1
- KMOUUZVZFBCRAM-OLQVQODUSA-N (3as,7ar)-3a,4,7,7a-tetrahydro-2-benzofuran-1,3-dione Chemical compound C1C=CC[C@@H]2C(=O)OC(=O)[C@@H]21 KMOUUZVZFBCRAM-OLQVQODUSA-N 0.000 description 1
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 description 1
- FYADHXFMURLYQI-UHFFFAOYSA-N 1,2,4-triazine Chemical class C1=CN=NC=N1 FYADHXFMURLYQI-UHFFFAOYSA-N 0.000 description 1
- WZCQRUWWHSTZEM-UHFFFAOYSA-N 1,3-phenylenediamine Chemical compound NC1=CC=CC(N)=C1 WZCQRUWWHSTZEM-UHFFFAOYSA-N 0.000 description 1
- 125000001637 1-naphthyl group Chemical group [H]C1=C([H])C([H])=C2C(*)=C([H])C([H])=C([H])C2=C1[H] 0.000 description 1
- VILCJCGEZXAXTO-UHFFFAOYSA-N 2,2,2-tetramine Chemical compound NCCNCCNCCN VILCJCGEZXAXTO-UHFFFAOYSA-N 0.000 description 1
- ZEGDFCCYTFPECB-UHFFFAOYSA-N 2,3-dimethoxy-1,4-benzoquinone Natural products C1=CC=C2C(=O)C(OC)=C(OC)C(=O)C2=C1 ZEGDFCCYTFPECB-UHFFFAOYSA-N 0.000 description 1
- XUZIWKKCMYHORT-UHFFFAOYSA-N 2,4,6-tris(diaminomethyl)phenol Chemical compound NC(N)C1=CC(C(N)N)=C(O)C(C(N)N)=C1 XUZIWKKCMYHORT-UHFFFAOYSA-N 0.000 description 1
- SENUUPBBLQWHMF-UHFFFAOYSA-N 2,6-dimethylcyclohexa-2,5-diene-1,4-dione Chemical compound CC1=CC(=O)C=C(C)C1=O SENUUPBBLQWHMF-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-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
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- FUIQBJHUESBZNU-UHFFFAOYSA-N 2-[(dimethylazaniumyl)methyl]phenolate Chemical compound CN(C)CC1=CC=CC=C1O FUIQBJHUESBZNU-UHFFFAOYSA-N 0.000 description 1
- PQAMFDRRWURCFQ-UHFFFAOYSA-N 2-ethyl-1h-imidazole Chemical compound CCC1=NC=CN1 PQAMFDRRWURCFQ-UHFFFAOYSA-N 0.000 description 1
- LIAWCKFOFPPVGF-UHFFFAOYSA-N 2-ethyladamantane Chemical compound C1C(C2)CC3CC1C(CC)C2C3 LIAWCKFOFPPVGF-UHFFFAOYSA-N 0.000 description 1
- YTWBFUCJVWKCCK-UHFFFAOYSA-N 2-heptadecyl-1h-imidazole Chemical compound CCCCCCCCCCCCCCCCCC1=NC=CN1 YTWBFUCJVWKCCK-UHFFFAOYSA-N 0.000 description 1
- 125000004204 2-methoxyphenyl group Chemical group [H]C1=C([H])C(*)=C(OC([H])([H])[H])C([H])=C1[H] 0.000 description 1
- LXBGSDVWAMZHDD-UHFFFAOYSA-N 2-methyl-1h-imidazole Chemical compound CC1=NC=CN1 LXBGSDVWAMZHDD-UHFFFAOYSA-N 0.000 description 1
- QTWJRLJHJPIABL-UHFFFAOYSA-N 2-methylphenol;3-methylphenol;4-methylphenol Chemical compound CC1=CC=C(O)C=C1.CC1=CC=CC(O)=C1.CC1=CC=CC=C1O QTWJRLJHJPIABL-UHFFFAOYSA-N 0.000 description 1
- 125000001622 2-naphthyl group Chemical group [H]C1=C([H])C([H])=C2C([H])=C(*)C([H])=C([H])C2=C1[H] 0.000 description 1
- ZCUJYXPAKHMBAZ-UHFFFAOYSA-N 2-phenyl-1h-imidazole Chemical compound C1=CNC(C=2C=CC=CC=2)=N1 ZCUJYXPAKHMBAZ-UHFFFAOYSA-N 0.000 description 1
- LLEASVZEQBICSN-UHFFFAOYSA-N 2-undecyl-1h-imidazole Chemical compound CCCCCCCCCCCC1=NC=CN1 LLEASVZEQBICSN-UHFFFAOYSA-N 0.000 description 1
- WMNWJTDAUWBXFJ-UHFFFAOYSA-N 3,3,4-trimethylheptane-2,2-diamine Chemical compound CCCC(C)C(C)(C)C(C)(N)N WMNWJTDAUWBXFJ-UHFFFAOYSA-N 0.000 description 1
- GVLZQVREHWQBJN-UHFFFAOYSA-N 3,5-dimethyl-7-oxabicyclo[2.2.1]hepta-1,3,5-triene Chemical compound CC1=C(O2)C(C)=CC2=C1 GVLZQVREHWQBJN-UHFFFAOYSA-N 0.000 description 1
- RNLHGQLZWXBQNY-UHFFFAOYSA-N 3-(aminomethyl)-3,5,5-trimethylcyclohexan-1-amine Chemical compound CC1(C)CC(N)CC(C)(CN)C1 RNLHGQLZWXBQNY-UHFFFAOYSA-N 0.000 description 1
- YAXXOCZAXKLLCV-UHFFFAOYSA-N 3-dodecyloxolane-2,5-dione Chemical compound CCCCCCCCCCCCC1CC(=O)OC1=O YAXXOCZAXKLLCV-UHFFFAOYSA-N 0.000 description 1
- 125000004207 3-methoxyphenyl group Chemical group [H]C1=C([H])C(*)=C([H])C(OC([H])([H])[H])=C1[H] 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
- 125000004860 4-ethylphenyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1*)C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000004861 4-isopropyl phenyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1*)C([H])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 125000004172 4-methoxyphenyl group Chemical group [H]C1=C([H])C(OC([H])([H])[H])=C([H])C([H])=C1* 0.000 description 1
- 125000000590 4-methylphenyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1*)C([H])([H])[H] 0.000 description 1
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- TYOXIFXYEIILLY-UHFFFAOYSA-N 5-methyl-2-phenyl-1h-imidazole Chemical compound N1C(C)=CN=C1C1=CC=CC=C1 TYOXIFXYEIILLY-UHFFFAOYSA-N 0.000 description 1
- ULKLGIFJWFIQFF-UHFFFAOYSA-N 5K8XI641G3 Chemical compound CCC1=NC=C(C)N1 ULKLGIFJWFIQFF-UHFFFAOYSA-N 0.000 description 1
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- OMIHGPLIXGGMJB-UHFFFAOYSA-N 7-oxabicyclo[4.1.0]hepta-1,3,5-triene Chemical group C1=CC=C2OC2=C1 OMIHGPLIXGGMJB-UHFFFAOYSA-N 0.000 description 1
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- 230000001133 acceleration Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
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- 230000002411 adverse Effects 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
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- 125000003277 amino group Chemical group 0.000 description 1
- IMUDHTPIFIBORV-UHFFFAOYSA-N aminoethylpiperazine Chemical compound NCCN1CCNCC1 IMUDHTPIFIBORV-UHFFFAOYSA-N 0.000 description 1
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- 125000002529 biphenylenyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3C12)* 0.000 description 1
- 150000001638 boron Chemical class 0.000 description 1
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
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- 229930003836 cresol Natural products 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
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- ILUAAIDVFMVTAU-UHFFFAOYSA-N cyclohex-4-ene-1,2-dicarboxylic acid Chemical compound OC(=O)C1CC=CCC1C(O)=O ILUAAIDVFMVTAU-UHFFFAOYSA-N 0.000 description 1
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- 125000001033 ether group Chemical group 0.000 description 1
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- 239000006082 mold release agent Substances 0.000 description 1
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- QOHMWDJIBGVPIF-UHFFFAOYSA-N n',n'-diethylpropane-1,3-diamine Chemical compound CCN(CC)CCCN QOHMWDJIBGVPIF-UHFFFAOYSA-N 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
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Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【0001】
【発明の属する技術分野】
本発明は、難燃性に優れた環境面で好ましい硬化性樹脂組成物に関する。
【0002】
【従来の技術】
従来、易燃性樹脂組成物であるエポキシ樹脂の難燃化の手法として、ハロゲン化合物、三酸化アンチモンなどを添加する方法や、ハロゲン化エポキシ樹脂を用いる手法が用いられてきたが、これらは環境保護の観点、毒性の面等からも好ましくなく、難燃化手法の改善が求められている。このようなハロゲン系難燃剤や金属酸化物を含有しない代替材として、リン系難燃剤を用いた難燃化が検討されており、例えば赤燐を用いる方法(特開平9−227765号公報)、リン酸エステルを用いる方法(特開平9−235449号公報、特開平11−43536号公報)などが開示されている。しかし、赤燐を用いる方法では少量の水分と反応して、有毒なホスフィンを発生する上に、腐食性のリン酸を発生するなど問題が多い。また、リン酸エステルは耐加水分解性の低下、可塑化による成形性の低下をまねくなど問題が多い。
【0003】
充填材の配合割合を高くする方法(特開平7−82343号公報)も提案されているが、充填材を多量に添加すると樹脂組成物が極端に脆くなる上に、表面性や成形性も極端に悪化するため好ましくない。
また、エポキシ樹脂に対する難燃剤として、ホスファゼン系化合物が報告されている。例えば、フェノキシホスファゼンをエポキシ樹脂に添加した難燃性エポキシ組成物(例えば、特許文献1および特許文献2参照)や、弗素含有ホスファゼン化合物をエポキシ樹脂に添加した組成物(例えば、特許文献3参照)等が報告されている。しかし、十分な難燃性を得るためには多量の難燃剤を添加する必要があり、耐熱性の低下等の問題もあった。これらのような物性低下をまねかない難燃性エポキシ樹脂組成物を得る手法が求められている。
【0004】
【特許文献1】
特開平10−259292号公報
【特許文献2】
特公平6−53787号公報
【特許文献3】
特許第2857444号
【0005】
【発明が解決しようとする課題】
本発明は、ハロゲン化合物を含まず、耐熱性、機械特性、電気特性に優れ、環境上好ましい、高度の難燃性を有する硬化性樹脂組成物を提供することである。
【0006】
【課題を解決するための手段】
本発明者は上記課題を解決するために鋭意検討した結果、エポキシ樹脂にポリフェニレンエーテル樹脂と環状ホスファゼン化合物よりなることを基本とする樹脂組成物において目的を達成できることを見いだし本発明に到達した。
即ち本発明は、(a)エポキシ樹脂、(b)ポリフェニレンエーテル樹脂、(c)硬化剤、(d)環状ホスファゼン化合物(式中のnは3〜15の整数であり、R1、R2は同じであっても異なっても良いアリール基、又は炭素数が1〜6のアルキル基を示す)からなり、(d)の配合量が(a)、(b)、(c)及び(d)成分の合計量100重量%に対して1〜40重量%、好ましくは3〜30重量%、より好ましくは6〜24重量%であり、(b)の配合量が(a)及び(b)の合計量100重量%に対して99〜10重量%、好ましくは85〜20重量%、より好ましくは85〜40重量%から成る、優れた難燃性を有する熱硬化性樹脂組成物を提供するものである。
【0007】
以下、本発明を詳細に説明する。
本発明において用いられる(a)成分のエポキシ樹脂は、分子中に少なくとも2個の、式(2)で表されるエポキシ基を有する化合物であればよく、特に制限されるものではない。一例として、ビスフェノールA型エポキシ樹脂、ビスフェノールF型エポキシ樹脂、ビスフェノールS型エポキシ樹脂、レゾルシノール型エポキシ樹脂、ノボラック型エポキシ樹脂、ビフェニル型エポキシ樹脂、多官能型エポキシ樹脂等が挙げることができ、これらのエポキシ樹脂は単独又は二種以上を混合して用いることができる。
【0008】
【化2】
【0009】
本発明で用いられる(b)成分のポリフェニレンエーテル樹脂としては、一般式(3)及び/または(4)で表される繰り返し単位を有する単独重合体、あるいは共重合体が用いられ
【0010】
【化3】
【0011】
【化4】
【0012】
(ここで、R3、R4、R5、R6、R7、R8は独立に炭素1〜4のアルキル基、アリール基、ハロゲン、水素を表す。但し、R7、R8は同時に水素ではない。)、その重量平均分子量が500以上,50000以下のもの、好ましく重量平均分子量が500以上、30000以下のもの、より好ましくは重量平均分子量が500以上、10000以下のものが用いられる。(b)成分の重量平均分子量が500を下回る場合は、ガラス転移温度の低下により耐熱性が低下し、さらには機械的強度が低下し、50000を超える場合は、最終的な組成物の流動性が悪くなり、加工性に問題が生じる為好ましくない。
【0013】
ポリフェニレンエーテル樹脂の単独重合体の代表例としては、ポリ(2,6−ジメチル−1,4−フェニレン)エーテル、ポリ(2−メチル−6−エチル−14−フェニレン)エーテル、ポリ(2,6−ジエチル−1,4−フェニレン)エーテル、ポリ(2−エチル−6−n−プロピル−1,4−フェニレン)エーテルポリ(2,6−ジ−n−プロピル−1,4−フェニレン)エーテル、ポリ(2−メチル−6−n−ブチル−1,4−フェニレン)エーテル、ポリ(2−エチル−6−イソプロピル−1,4−フェニレン)エーテル、ポリ(2−メチル−6−ヒドロキシエチル−1,4−フェニレン)エーテル等のホモポリマーが挙げられる。
【0014】
この中で、ポリ(2,6−ジメチル−1,4−フェニレン)エーテルが好ましく、特開昭63−301222号公報等に記載されている、2−(ジアルキルアミノメチル)−6−メチルフェニレンエーテルユニットや2−(N−アルキル−N−フェニルアミノメチル)−6−メチルフェニレンエーテルユニット等を部分構造として含んでいるポリフェニレンエーテルは特に好ましい。
ここでポリフェニレンエーテル共重合体とは、フェニレンエーテル構造を主単量単位とする共重合体である。その例としては、2,6−ジメチルフェノールと2,3,6−トリメチルフェノールとの共重合体、2,6−ジメチルフェノールとo−クレゾールとの共重合体あるいは2,6−ジメチルフェノールと2,3,6−トリメチルフェノール及びo−クレゾールとの共重合体等がある。
【0015】
本発明で用いるポリフェニレンエーテルの製造方法は公知の方法で得られるものであれば特に限定されるものではなく、例えば、米国特許第3306874号明細書記載のHayによる第一塩化銅とアミンのコンプレックスを触媒として用い、例えば2,6−ジメチルフェノールを酸化重合することにより容易に製造でき、そのほかにも米国特許第3306875号明細書、同第3257357号明細書及び同第3257358号明細書、特公昭52−17880号公報及び特開昭50−51197号公報及び同63−152628号公報等に記載された方法で容易に製造できる。
【0016】
本発明においてはポリフェニレンエーテル樹脂の一部又は全部を、不飽和カルボン酸又はその官能的誘導体で変性された変性ポリフェニレンエーテル樹脂を用いることができる。この変性ポリフェニレンエーテル樹脂は、特開平2−276823号公報、特開昭63−108059号公報、特開昭59−59724号公報等に記載されており、例えばラジカル開始剤の存在下または非存在下において、ポリフェニレンエーテル樹脂に不飽和カルボン酸やその官能的誘導体を溶融混練し、反応させることによって製造される。あるいは、ポリフェニレンエーテルと不飽和カルボン酸やその官能的誘導体とをラジカル開始剤存在下または非存在下で有機溶剤に溶かし、溶液下で反応させることによって製造される。
【0017】
不飽和カルボン酸又はその官能的誘導体としては、例えばマレイン酸、フマル酸、イタコン酸、ハロゲン化マレイン酸、シス−4−シクロヘキセン1,2−ジカルボン酸、エンド−シス−ビシクロ(2,2,1)−5−ヘプテン−2,3−ジカルボン酸などや、これらジカルボン酸の酸無水物、エステル、アミド、イミドなど、さらにはアクリル酸、メタクリル酸などや、これらモノカルボン酸のエステル、アミドなどが挙げられる。また、飽和カルボン酸であるが変性ポリフェニレンエーテルを製造する際の反応温度でそれ自身が熱分解し、本発明で用いる官能的誘導体となり得る化合物も用いることができ、具体的にはリンゴ酸、クエン酸などが挙げられる。これらは1種又は2種以上を組み合わせて用いても良い。
【0018】
また、本発明においてはポリフェニレンエーテル樹脂の一部又は全部を、エポキシ基、アミノ基、水酸基、メルカプト基、シリル基等で官能基化された変性ポリフェニレンエーテル樹脂も用いることができる。これらは1種又は2種以上を組み合わせて用いても良い。
本発明で用いる(a)成分のエポキシ樹脂に対する(b)成分のポリフェニレンエーテル樹脂の配合量は、(a)及び(b)の合計量100重量%に対して99〜10重量%、好ましくは85〜20重量%、より好ましくは85〜40重量%の範囲より選ばれる。
【0019】
本発明で用いる(c)成分の硬化剤としては、通常エポキシ樹脂の硬化に使用されるものであれば従来公知のものを用いることができ、特に制限されるものではない。具体的に一例を示すと、ジエチレントリアミン、トリエチレンテトラミン、テトラエチレンペンタミン、ペンタエチレンヘキサミン、ジエチルアミノプロピルアミン、3,9−ビス(3−アミノプロピル)−2,4,8,10−テトラオキサスピロ[5,5]ウンデカン、メンセンジアミン、イソホロンジアミン、N−アミノエチルピペラジン、m−キシレンジアミン、m−フェニレンジアミン、ジアミノジフェニルメタン、ジアミノジフェニルスルホン、ジシアンジアミド、アジピン酸ジヒラジドなどのアミン類や、フェノールノボラック樹脂、クレゾールノボラック樹脂などのフェノール樹脂類、液状ポリメルカプタン、ポリサルファイド等のポリメルカプタンである。
【0020】
また、無水マレイン酸、無水フタル酸、テトラヒドロ無水フタル酸、ヘキサヒドロ無水フタル酸、メチルテトラヒドロ無水フタル酸、メチルヘキサヒドロ無水フタル酸、無水メチルナジック酸、無水ピロメリット酸、メチルシクロヘキセンテトラカルボン酸無水物、ドデシル無水コハク酸、無水トリメリット酸、無水クロンレンディック酸、ベンゾフェノンテトラカルボン酸無水物、エチレングリコールビス(アンヒドロトリメート)等の酸無水物等があげられ、これらは単独又は二種以上の混合物として使用することができる。
(a)成分のエポキシ樹脂に対する(c)成分の硬化剤の添加量(=活性水素当量/エポキシ当量;活性水素当量は分子量を反応活性な水素数で除したもの)は特に限定されないが、それぞれの成分の未反応分を少なく抑える範囲であることが望ましい。
【0021】
また本発明においては、必要に応じて硬化促進剤を用いることができる。硬化促進剤として使用されるものは従来公知のもので良く、特に制限されるものではない。その一例として2−メチルイミダゾール、2−エチルイミダゾール、2−エチル−4−メチルイミダゾール、2−フェニルイミダゾール、2−ウンデシルイミダゾール、2−ヘプタデシルイミダゾール、2−フェニル−4−メチルイミダゾール等のイミダゾール類、トリフェニルホスフィン、トリブチルホスフィン等の有機ホスフィン類、ベンジルジメチルアミン、2−(ジメチルアミノメチル)フェノール、2,4,6−トリス(ジアミノメチル)フェノール、テトラメチルヘキサンジアミン等の三級アミン類、トリフェニルホスファインテトラフェニルボレート、テトラフェニルホスホニウムテトラフェニルボレート、トリエチルアミンテトラフェニルボレート等のボロン塩、1,4−ベンゾキノン、1,4−ナフトキノン、2,3−ジメチル−1,4−ベンゾキノン、2,6−ジメチルベンゾキノン、2,3−ジメトキシ−1,4−ベンゾキノン等のキノイド化合物等が挙げられ、単独又は二種以上を混合して用いることができる。硬化促進剤の配合量は、硬化促進効果が得られる量であれば特に制限されるものではない。
【0022】
本発明で用いられる(d)ホスファゼン化合物は公知の化合物であり、一般式(1)(式中のnは3〜15の整数であり、R1、R2は同じであっても異なっても良いアリール基、又は炭素数が1〜6のアルキル基を示す)で示される環状および直鎖状の構造を有するものであるが、n=3〜15の環状ホスファゼンが好ましく、特にn=3、4の6員環及び8員環を全ホスファゼン化合物中に80重量%以上含有する環状ホスファゼン化合物が好ましい。
【0023】
さらには置換基R1及びR2がアリール基である環状ホスファゼン化合物が好ましい。置換基R1、R2としては特に制限はないが、一例として、メチル基、エチル基、n−プロピル基、イソプロピル基、n−ブチル基、tert−ブチル基、n−ペンチル基、イソアミル基、n−ヘキシル基などの直鎖又は分岐したアルキル基、フェニル基、1−ナフチル基、2−ナフチル基などの無置換フェニル基、2−メチルフェニル基、3−メチルフェニル基、4−メチルフェニル基、2−エチルフェニル基、3−エチルフェニル基、4−エチルフェニル基、2−(n−プロピル)フェニル基である。
【0024】
また、3−(n−プロピル)フェニル基、4−(n−プロピル)フェニル基、2−イソプロピルフェニル基、3−イソプロピルフェニル基、4−イソプロピルフェニル基、2−(n−ブチル)フェニル基、3−(n−ブチル)フェニル基、4−(n−ブチル)フェニル基、2−(2−メチルプロピル)フェニル基、3−(2−メチルプロピル)フェニル基、4−(2−メチルプロピル)フェニル基、2−tert−ブチルフェニル基、3−tert−ブチルフェニル基、4−tert−ブチルフェニル基、2−(n−ペンチル)フェニル基、3−(n−ペンチル)フェニル基、4−(n−ペンチル)フェニル基、2−(1−メチルブチル)フェニル基、3−(1−メチルブチル)フェニル基、4−(1−メチルブチル)フェニル基、2−(2−メチルブチル)フェニル基、3−(2−メチルブチル)フェニル基、4−(2−メチルブチル)フェニル基、2−(3−メチルブチル)フェニル基、−(3−メチルブチル)フェニル基、−(3−メチルブチル)フェニル基、2−(1,1−ジメチルプロピル)フェニル基、3−(1,1−ジメチルプロピル)フェニル基、4−(1,1−ジメチルプロピル)フェニル基、2−(2,2−ジメチルプロピル)フェニル基、3−(2,2−ジメチルプロピル)フェニル基、4−(2,2−ジメチルプロピル)フェニル基、2−(1,2−ジメチルプロピル)フェニル基である。
【0025】
また、3−(1,2−ジメチルプロピル)フェニル基、4−(1,2−ジメチルプロピル)フェニル基、4−ドデシルフェニル基、2−フェニルフェニル基、3−フェニルフェニル基、4−フェニルフェニル基、2−メトキシフェニル基、3−メトキシフェニル基、4−メトキシフェニル基、2−エトキシフェニル基、3−エトキシフェニル基、4−エトキシフェニル基などの一置換フェニル基、2,3−ジメチルフェニル基、2,4−ジメチルフェニル基、2,5−ジメチルフェニル基、2,6−ジメチルフェニル基、3,4−ジメチルフェニル基、3,5−ジメチルフェニル基、2−エチル−3−メチルフェニル基、2−エチル−4−メチルフェニル基、2−エチル−5−メチルフェニル基、2−エチル−6−メチルフェニル基、3−エチル−2−メチルフェニル基、3−エチル−4−メチルフェニル基、3−エチル−5−メチルフェニル基である。
【0026】
また、5−エチル−2−メチルフェニル基、4−エチル−2−メチルフェニル基、4−エチル−3−メチルフェニル基、2−メチル−3−n−プロピルフェニル基、2−メチル−4−n−プロピルフェニル基、2−メチル−5−n−プロピルフェニル基、2−メチル−6−n−プロピルフェニル基、3−メチル−2−n−プロピルフェニル基、3−メチル−4−n−プロピルフェニル基、3−メチル−5−n−プロピルフェニル基、5−メチル−2−n−プロピルフェニル基、4−メチル−2−n−プロピルフェニル基、4−メチル−3−n−プロピルフェニル基、2−メチル−3−イソプロピルフェニル基、2−メチル−4−イソプロピルフェニル基、2−メチル−5−イソプロピルフェニル基、2−メチル−6−イソプロピルフェニル基、3−メチル−2−イソプロピルフェニル基、3−メチル−4−イソプロピルフェニル基である。
【0027】
また、3−メチル−5−イソプロピルフェニル基、5−メチル−2−イソプロピルフェニル基、4−メチル−2−イソプロピルフェニル基、4−メチル−3−イソプロピルフェニル基、2−メチル−3−n−ブチルフェニル基、2−メチル−4−n−ブチルフェニル基、2−メチル−5−n−ブチルフェニル基、2−メチル−6−n−ブチルフェニル基、3−メチル−2−n−ブチルフェニル基、3−メチル−4−n−ブチルフェニル基、3−メチル−5−n−ブチルフェニル基、5−メチル−2−n−ブチルフェニル基、4−メチル−2−n−ブチルフェニル基、4−メチル−3−n−ブチルフェニル基、2−(2−メチルプロピル)−3−メチルフェニル基、2−(2−メチルプロピル)−4−メチルフェニル基、2−(2−メチルプロピル)−5−メチルフェニル基である。
【0028】
また、2−(2−メチルプロピル)−6−メチルフェニル基、3−(2−メチルプロピル)−2−メチルフェニル基、3−(2−メチルプロピル)−4−メチルフェニル基、3−(2−メチルプロピル)−5−メチルフェニル基、3−(2−メチルプロピル)−6−メチルフェニル基、4−(2−メチルプロピル)−2−メチルフェニル基、4−(2−メチルプロピル)−3−メチルフェニル基、2−(3−メチルプロピル)−3−メチルフェニル基、2−(3−メチルプロピル)−4−メチルフェニル基、2−(3−メチルプロピル)−5−メチルフェニル基、2−(3−メチルプロピル)−6−メチルフェニル基、3−(3−メチルプロピル)−2−メチルフェニル基、3−(3−メチルプロピル)−4−メチルフェニル基、3−(3−メチルプロピル)−5−メチルフェニル基、3−(3−メチルプロピル)−6−メチルフェニル基、4−(3−メチルプロピル)−2−メチルフェニル基である。
【0029】
また、4−(3−メチルプロピル)−3−メチルフェニル基、2−メチル−3−tert−ブチルフェニル基、2−メチル−4−tert−ブチルフェニル基、2−メチル−5−tert−ブチルフェニル基、2−メチル−6−tert−ブチルフェニル基、3−メチル−2−tert−ブチルフェニル基、3−メチル−4−tert−ブチルフェニル基、3−メチル−5−tert−ブチルフェニル基、5−メチル−2−tert−ブチルフェニル基、4−メチル−2−tert−ブチルフェニル基、4−メチル−3−tert−ブチルフェニル基等の二置換フェニル基、2,3,4−トリメチルフェニル基、2,3,5−トリメチルフェニル基、2,3,6−トリメチルフェニル基、2,4,6−トリメチルフェニル基等の多置換フェニル基等が挙げられ、これらホスファゼン化合物を得るための参考文献および合成例は、特公平3−73590号公報、特開平9−71708号公報、特開平9−183864号公報、特開平11−181429号公報及び特許第3053617号公報等に開示されている。
さらに、これらの化合物は特開平11−181429号公報に開示されている技術により、フェニレン基、ビフェニレン基および下記に示す基(5)
【0030】
【化5】
【0031】
(式中Xは、−C(CH3)2−、−SO2−、−S−、または−O−を、yは0又は1を表す)からなる群より選ばれた架橋基によって架橋されていても良い。これらの架橋構造を有するホスファゼン化合物は、具体的にはジクロルホスファゼンオリゴマーにフェノールのアルカリ金属塩および芳香族ジヒドロキシ化合物のアルカリ金属塩を反応させることにより製造される。これらのアルカリ金属塩は、ジクロルホスファゼンオリゴマーに対して理論量よりもやや過剰に添加される。
【0032】
これらのホスファゼン化合物は一種単独で用いても、二種以上の混合物として用いても良い。また、n=3の六員環ホスファゼン単独で用いても、n=4以上の多員環ホスファゼンとの混合物として用いても良い。
本発明において、(d)の添加量は、(a)成分と(b)成分の存在比により異なるが、(a)、(b)、(c)及び(d)の総量を100重量%に対して1〜40重量%、好ましくは3〜30重量%、より好ましくは6〜24重量%の範囲より選ばれる。(d)成分の添加量が1重量%を下回る場合は、該エポキシ樹脂は十分な難燃性を得られず、40重量%を超える場合は樹脂組成物の耐熱性を大幅に低下させるなど、組成物の物性に悪影響を与えるため好ましくない。
【0033】
また、本発明においては、本発明の効果が達成できる範囲で、(d)成分の環状ホスファゼン化合物以外に、従来公知のノンハロゲン、ノンアンチモンの難燃剤を併用することができる。例示すると、トリフェニルホスフェート、トリクレジルホスフェート、トリキシレニルホスフェート、クレジルジフェニルホスフェート、キシレニルジフェニルホスフェート、ジキシレニルフェニルホスフェート、ヒドロキシノンビスフェノール、レゾルシノールビスホスフェート、ビスフェノールAビスホスフェート等の燐酸エステル類、水酸化マグネシウム、水酸化アルミニウム、アルミン酸カルシウム等の金属水酸化物、トリアジン化合物、メラミン、メラミンシアヌレート、メラミン樹脂、グアニジン化合物等の含窒素化合物等が挙げられる。
【0034】
本発明においては、(b)成分及び(d)成分の配合割合は、(a)、(b)、(c)及び(d)成分の合計量100重量%に対して、(d)成分含有量の二倍量と(b)成分含有量の合計が25重量%以上、好ましく40重量%以上、より好ましく63重量%以上であることが望ましい。(d)成分含有量の二倍量と(b)成分含有量の合計が25重量%より下回る場合は、該エポキシ樹脂は十分な難燃性が得ることができず、好ましくない。
本発明の樹脂組成物においては、さらに樹脂組成物の剛性や寸法安定性を向上させる必要のあるときには、無機充填材を添加することができる。充填材種は目的によって任意に選べるが、ガラス繊維、ガラスフレーク、マイカ、タルク、シリカ、ジルコン、アルミナ、石膏、石英、マグネサイト、カオリン、炭化珪素、炭酸カルシウム、鉄粉、銅粉等が一般的に用いられる。
【0035】
本発明の樹脂組成物には、更に他の特性を付与するため、本発明の効果を損なわない範囲で他の添加剤、例えば可塑剤、酸化防止剤、及び紫外線吸収剤などの安定剤、帯電防止剤、応力緩和剤、離型剤、流動調整剤、染料、増感材、着色用顔料、ゴム質重合体、あるいはその他の樹脂、例えばポリスチレン、ABS樹脂、ポリアミド、ポリブタジエン、ポリカーボネイトとABS樹脂からなるアロイなどの樹脂を添加することができる。また、従来から知られた各種難燃剤および難燃助剤、例えば結晶水を含有する水酸化マグネシウムや水酸化アルミニウム等のアルカリ金属水酸化物またはアルカリ土類金属水酸化物、ホウ酸亜鉛化合物、スズ酸亜鉛化合物、さらにはシリカ、カオリンクレー、タルクなどの無機ケイ素化合物を添加して更なる難燃性の向上も可能である。
【0036】
本発明の樹脂組成物の製造方法は、本発明の効果が達成できる方法であれば特に規定するものではない。成型品は例えば、(a)エポキシ樹脂、(b)ポリフェニレンエーテル、(c)硬化剤、(d)ホスファゼンを無溶媒で、もしくは、必要に応じて、(a)、(b)、(c)及び(d)成分を均一に混合できる溶媒を用いて混合し、金型内へ注形し硬化させた後、冷却し、型から取り出すことにより得られる。使用する溶媒は各種材料を均一に混合することができ、且つ、使用することによって本発明の効果を損なわないものであれば特に限定されるものではない。
【0037】
一例としてはトルエン、キシレン、n−ヘキサン、n−ペンタン等が挙げられる。また、加熱ロール、ニーダー、バンバリーミキサー、押出機等の混練機を用いて混練製造した後、冷却、粉砕し、さらにトランスファー成形、射出成形、圧縮成形等により成形を行う方法も一例として挙げることができる。また、硬化方法は使用する硬化剤により異なるが、特に限定はされない。例としては、熱硬化、光硬化、圧力による硬化、湿気による硬化等が挙げられるが、本発明の効果が達成できる硬化方法であれば規定されるものではない。(a)、(b)、(c)、及び(d)を混合させる順序は、本発明の効果が達成できる方法であれば特に規定するものではない。
【0038】
【発明の実施の形態】
以下、実施例によって本発明を具体的に説明するが、本発明は以下の例に限定されるものではなく、また、本発明の組成物の調整方法は各種材料を均一に混合することができる手法であれば、特に限定されるものではない。以下の実施例及び比較例における「%」とは「重量%」を意味する。
実施例および比較例で用いた各成分は以下のものである。
【0039】
(a)エポキシ樹脂:
AER2502(旭化成エポキシ(株)社製);エポキシ当量184〜186、粘度(25℃)9000〜11000 mPa・s
(b)ポリフェニレンエーテル(PPE):
30℃のクロロホルム溶液で測定したηsp/cが0.43、重量平均分子量/数平均分子量が2.8のポリ−2,6−ジメチル−1,4−フェニレンエーテル。以下、PPEと記す。
【0040】
(c)硬化剤:
ペンタエチレンヘキサミン(エチレンアミン混合物)(和光純薬工業(株)社製)。以下PEHAと記す。実施例及び比較例において、硬化剤の添加量は「室井宗一、石村秀一著 新高分子文庫25 入門エポキシ樹脂 P93〜96」記載の添加量計算式にしたがって決定した。すなわち、化学量論的添加量=活性水素当量/エポキシ当量により求めた。活性水素当量は、活性水素当量=分子量/活性水素数により求めた。
(d)ホスファゼン:
式(6)で表されるヘキサフェノキシホスファゼンで、31P NMRにおいて式(6)で表されるフェノキシホスファゼン以外のピークが観測されないもので、DSCによる融点が114℃のもの。以下、ホスファゼン又はFR(難燃剤)と記す。
【0041】
【化6】
【0042】
実施例および比較例の樹脂組成物の難燃性評価は、UL−94垂直燃焼試験に基づき、長さ128mm×幅12.8mm×厚さ1.6mmの成形試験片を用いて行い、10回接炎時の合計燃焼時間と燃焼時の滴下物による綿着火の有無により、V−0、V−1、V−2、規格外の四段階に分類した。評価基準を以下に示す。
V−0:下記の条件を全て満たす。
(A)試験片5本を1本につき二回ずつ、合計10回の接炎後からの消炎時間の合計が50秒以内。
(B)試験片5本を一本につき二回ずつ接炎を行い、それぞれの接炎後からの消炎時間が5秒以内。
(C)すべての試験片で滴下物による、300mm下の脱脂綿への着火がない。
(D)すべての試験片で、二回目の接炎後のグローイングは30秒以内。
(E)すべての試験片で、クランプまでフレーミングしない。
【0043】
V−1:下記の条件を全て満たす。
(A)試験片5本を1本につき二回ずつ、合計10回の接炎後からの消炎時間の合計が250秒以内。
(B)試験片5本を一本につき二回ずつ接炎を行い、それぞれの接炎後からの消炎時間が30秒以内。
(C)すべての試験片で滴下物による、300mm下の脱脂綿への着火がない。
(D)すべての試験片で、二回目の接炎後のグローイングは60秒以内。
(E)すべての試験片で、クランプまでフレーミングしない。
【0044】
V−2:下記の条件を全て満たす。
(A)試験片5本を1本につき二回ずつ、合計10回の接炎後からの消炎時間の合計が250秒以内。
(B)試験片5本を一本につき二回ずつ接炎を行い、それぞれの接炎後からの消炎時間が30秒以内。
(C)試験片5本のうち、少なくとも一本、滴下物による、300mm下の脱脂綿への着火がある。
(D)すべての試験片で、二回目の接炎後のグローイングは60秒以内。
(E)すべての試験片で、クランプまでフレーミングしない。
【0045】
【実施例1】
AER2502(エポキシ当量185)35.3%にホスファゼン24%を125℃で溶解させ、125℃でPPE35.3%を混合した後、90℃でペンタエチレンヘキサミン5.4%とを混合し、128mm×12.8mm×1.6mmの金型内に注入し、140℃で2時間、次いで190℃で3時間硬化を行った後、試料を室温まで冷却して、型から取り出した。この成型品について燃焼性試験を行ったところ、V−0であった。その結果は表1に示す。
【0046】
【実施例2】
AER2502(エポキシ当量185)51.0%、ホスファゼン24%、PPE17.0%及びペンタエチレンヘキサミン8.0%を用いて、実施例1と同様の方法で成型片を作製し、燃焼性試験を行ったところ、V−0であった。その結果は表1に示す。
【0047】
【実施例3】
AER2502(エポキシ当量185)31.6%、ホスファゼン16%、PPE47.4%及びペンタエチレンヘキサミン5.0%を用いて、実施例1と同様の方法で成型片を作製し、燃焼性試験を行ったところ、V−1であった。その結果は表1に示す。
【0048】
【実施例4】
AER2502(エポキシ当量185)34.7%、ホスファゼン8%、PPE51.9%及びペンタエチレンヘキサミン5.4%を用いて、実施例1と同様の方法で成型片を作製し、燃焼性試験を行ったところ、V−1であった。その結果は表1に示す。
【0049】
【実施例5】〜
【実施例10】
AER2502(エポキシ当量185)、ホスファゼン、PPE、ペンタエチレンヘキサミンを表2及び表3に記載の量を用いて、実施例1と同様の方法で成型片を作製し、燃焼性試験を行ったところ、実施例9がV−1であり、実施例6,7,8及び10は規格外であった。その結果を表2及び表3に示す。
【0050】
【比較例1】
AER2502(エポキシ当量185)86.4%とペンタエチレンヘキサミン13.6%を90℃で混合し、128mm×12.8mm×1.6mmの金型内に注入し、140℃で2時間、次いで190℃で3時間硬化を行った後、試料を室温まで冷却して、型から取り出した。この成型品について燃焼性試験を行ったところ、規格外であった。その結果は表4に示す。
【0051】
【比較例2】
AER2502(エポキシ当量185)79.5%にホスファゼン8%を125℃を溶解させた後、90℃でペンタエチレンヘキサミン12.5%と混合し、128mm×12.8mm×1.6mmの金型内に注入し、140℃で2時間、次いで190℃で3時間硬化を行った後、試料を室温まで冷却して、型から取り出した。この成型品について燃焼性試験を行ったところ、規格外であった。その結果は表4に示す。
【0052】
【比較例3】
AER2502(エポキシ当量185)72.6%、ホスファゼン16%及び、ペンタエチレンヘキサミン11.4%を用いて比較例2と同様の方法で成型片を作製し、燃焼性試験を行ったところ、規格外であった。その結果は表4に示す。
【0053】
【比較例4】
AER2502(エポキシ当量185)65.7%、ホスファゼン24%及び、ペンタエチレンヘキサミン10.3%を用いて比較例2と同様の方法で成型片を作製し、燃焼性試験を行ったところ、規格外であった。その結果は表4に示す。
【0054】
【比較例5】
AER2502(エポキシ当量185)75.0%とPPE13.2%を125℃で混合した後、90℃でペンタエチレンヘキサミン11.8%と混合し、128mm×12.8mm×1.6mmの金型内に注入し、140℃で2時間、次いで190℃で3時間硬化を行った後、試料を室温まで冷却して、型から取り出した。この成型品について燃焼性試験を行ったところ、規格外であった。その結果を表5に示す。
【0055】
【比較例6】
AER2502(エポキシ当量)67.1%、PPE22.4%、ペンタエチレンヘキサミン10.5%を用いて、比較例5と同様の方法で成型片を作製し、燃焼性試験を行ったところ、規格外であった。その結果を表5に示す。
【0056】
【比較例7】
AER2502(エポキシ当量)46.4%、PPE46.4%、ペンタエチレンヘキサミン7.2%を用いて、比較例5と同様の方法で成型片を作製し、燃焼性試験を行ったところ、規格外であった。その結果を表5に示す。
これらの結果から、エポキシ樹脂を難燃化する手法として難燃剤を添加せずPPEのみを添加する方法、もしくは、PPEを添加せずに難燃剤のみを添加する方法では、十分な難燃化効果が得られないのに対し、本発明によるエポキシ樹脂にPPE及び難燃剤の組み合わせで添加する方法により、高度の難燃性を有する硬化性樹脂組成物が得られることが分かる。
【0057】
【表1】
【0058】
【表2】
【0059】
【表3】
【0060】
【表4】
【0061】
【表5】
【0062】
【発明の効果】
本発明により、難燃剤添加量を抑えた上で、ハロゲン化合物を含まず、環境上好ましい、高度な難燃性を有する硬化樹脂組成物を提供することができた。[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an environment-friendly curable resin composition having excellent flame retardancy.
[0002]
[Prior art]
Conventionally, methods of adding a halogen compound, antimony trioxide, and the like, and methods using a halogenated epoxy resin have been used as a method of making an epoxy resin, which is a flammable resin composition, flame-retardant. It is not preferable from the viewpoint of protection, toxicity, and the like, and there is a demand for an improved flame-retardant method. As an alternative material that does not contain such a halogen-based flame retardant or metal oxide, flame retardation using a phosphorus-based flame retardant has been studied. For example, a method using red phosphorus (Japanese Patent Application Laid-Open No. 9-227765), Methods using phosphate esters (JP-A-9-235449, JP-A-11-43536) and the like are disclosed. However, the method using red phosphorus has many problems such that it reacts with a small amount of water to generate toxic phosphine and also generates corrosive phosphoric acid. Further, phosphate esters have many problems such as a decrease in hydrolysis resistance and a decrease in moldability due to plasticization.
[0003]
A method of increasing the blending ratio of the filler (Japanese Patent Application Laid-Open No. Hei 7-82343) has also been proposed. However, if a large amount of the filler is added, the resin composition becomes extremely brittle and the surface properties and moldability are extremely high. It is not preferable because it deteriorates.
Also, phosphazene compounds have been reported as flame retardants for epoxy resins. For example, a flame-retardant epoxy composition in which phenoxyphosphazene is added to an epoxy resin (for example, see Patent Documents 1 and 2), and a composition in which a fluorine-containing phosphazene compound is added to an epoxy resin (for example, see Patent Document 3) Etc. have been reported. However, in order to obtain sufficient flame retardancy, it is necessary to add a large amount of a flame retardant, and there is a problem such as a decrease in heat resistance. There is a need for a method of obtaining a flame-retardant epoxy resin composition that does not cause such deterioration in physical properties.
[0004]
[Patent Document 1]
JP-A-10-259292
[Patent Document 2]
Japanese Patent Publication No. 6-53787
[Patent Document 3]
Patent No. 2857444
[0005]
[Problems to be solved by the invention]
An object of the present invention is to provide a curable resin composition which does not contain a halogen compound, has excellent heat resistance, mechanical properties, and electrical properties, is environmentally preferable, and has high flame retardancy.
[0006]
[Means for Solving the Problems]
As a result of intensive studies to solve the above problems, the present inventors have found that a resin composition based on an epoxy resin comprising a polyphenylene ether resin and a cyclic phosphazene compound can achieve the object, and have reached the present invention.
That is, the present invention provides (a) an epoxy resin, (b) a polyphenylene ether resin, (c) a curing agent, and (d) a cyclic phosphazene compound (wherein n is an integer of 3 to 15, and 1 , R 2 Represents an aryl group which may be the same or different, or an alkyl group having 1 to 6 carbon atoms), and the blending amount of (d) is (a), (b), (c) and (d 1) to 40% by weight, preferably 3 to 30% by weight, more preferably 6 to 24% by weight with respect to 100% by weight of the total amount of the components, and the blending amount of (b) is A thermosetting resin composition having excellent flame retardancy, comprising 99 to 10% by weight, preferably 85 to 20% by weight, more preferably 85 to 40% by weight based on 100% by weight of the total amount of Things.
[0007]
Hereinafter, the present invention will be described in detail.
The epoxy resin of the component (a) used in the present invention may be any compound having at least two epoxy groups represented by the formula (2) in a molecule, and is not particularly limited. As an example, bisphenol A type epoxy resin, bisphenol F type epoxy resin, bisphenol S type epoxy resin, resorcinol type epoxy resin, novolak type epoxy resin, biphenyl type epoxy resin, polyfunctional type epoxy resin and the like can be mentioned. Epoxy resins can be used alone or in combination of two or more.
[0008]
Embedded image
[0009]
As the polyphenylene ether resin of the component (b) used in the present invention, a homopolymer or a copolymer having a repeating unit represented by the general formula (3) and / or (4) is used.
[0010]
Embedded image
[0011]
Embedded image
[0012]
(Where R 3 , R 4 , R 5 , R 6 , R 7 , R 8 Independently represents an alkyl group having 1 to 4 carbon atoms, an aryl group, halogen, or hydrogen. Where R 7 , R 8 Are not hydrogen at the same time. ), Those having a weight average molecular weight of 500 to 50,000, preferably those having a weight average molecular weight of 500 to 30,000, more preferably those having a weight average molecular weight of 500 to 10,000. When the weight average molecular weight of the component (b) is lower than 500, the heat resistance is lowered due to the lowering of the glass transition temperature, and further the mechanical strength is lowered. This is not preferable because of poor workability and a problem in workability.
[0013]
Representative examples of the homopolymer of the polyphenylene ether resin include poly (2,6-dimethyl-1,4-phenylene) ether, poly (2-methyl-6-ethyl-14-phenylene) ether, poly (2,6 -Diethyl-1,4-phenylene) ether, poly (2-ethyl-6-n-propyl-1,4-phenylene) ether poly (2,6-di-n-propyl-1,4-phenylene) ether, Poly (2-methyl-6-n-butyl-1,4-phenylene) ether, poly (2-ethyl-6-isopropyl-1,4-phenylene) ether, poly (2-methyl-6-hydroxyethyl-1) , 4-phenylene) ether and the like.
[0014]
Among them, poly (2,6-dimethyl-1,4-phenylene) ether is preferable, and 2- (dialkylaminomethyl) -6-methylphenylene ether described in JP-A-63-301222 and the like is preferred. Polyphenylene ether containing a unit or a 2- (N-alkyl-N-phenylaminomethyl) -6-methylphenylene ether unit as a partial structure is particularly preferable.
Here, the polyphenylene ether copolymer is a copolymer having a phenylene ether structure as a main unit unit. Examples thereof include a copolymer of 2,6-dimethylphenol and 2,3,6-trimethylphenol, a copolymer of 2,6-dimethylphenol and o-cresol, or a copolymer of 2,6-dimethylphenol and 2 , 3,6-trimethylphenol and o-cresol.
[0015]
The method for producing the polyphenylene ether used in the present invention is not particularly limited as long as it can be obtained by a known method.For example, a complex of cuprous chloride and an amine by Hay described in U.S. Pat. It can be easily prepared by oxidative polymerization of 2,6-dimethylphenol, for example, as a catalyst. In addition, U.S. Pat. Nos. 3,306,875, 3,257,357 and 3,257,358, and JP-B-52 It can be easily produced by the methods described in JP-A-17880, JP-A-50-51197 and JP-A-63-152628.
[0016]
In the present invention, a modified polyphenylene ether resin obtained by modifying a part or all of the polyphenylene ether resin with an unsaturated carboxylic acid or a functional derivative thereof can be used. This modified polyphenylene ether resin is described in JP-A-2-276823, JP-A-63-108059, JP-A-59-59724, and the like, for example, in the presence or absence of a radical initiator. In the above, an unsaturated carboxylic acid or a functional derivative thereof is melt-kneaded with a polyphenylene ether resin, and the mixture is reacted. Alternatively, it is produced by dissolving a polyphenylene ether and an unsaturated carboxylic acid or a functional derivative thereof in an organic solvent in the presence or absence of a radical initiator, and reacting the resultant in a solution.
[0017]
Examples of the unsaturated carboxylic acid or its functional derivative include maleic acid, fumaric acid, itaconic acid, halogenated maleic acid, cis-4-cyclohexene-1,2-dicarboxylic acid, endo-cis-bicyclo (2,2,1 ) -5-heptene-2,3-dicarboxylic acid, etc .; acid anhydrides, esters, amides, imides and the like of these dicarboxylic acids; and acrylic acid and methacrylic acid; and esters and amides of these monocarboxylic acids. No. In addition, a compound which is a saturated carboxylic acid but can be thermally decomposed at the reaction temperature in producing the modified polyphenylene ether itself and become a functional derivative used in the present invention can also be used. Specifically, malic acid, citric acid Acids and the like. These may be used alone or in combination of two or more.
[0018]
Further, in the present invention, a modified polyphenylene ether resin in which a part or all of the polyphenylene ether resin is functionalized with an epoxy group, an amino group, a hydroxyl group, a mercapto group, a silyl group or the like can also be used. These may be used alone or in combination of two or more.
The blending amount of the polyphenylene ether resin of the component (b) with respect to the epoxy resin of the component (a) used in the present invention is 99 to 10% by weight, preferably 85 to 100% by weight of the total amount of (a) and (b). To 20% by weight, more preferably 85 to 40% by weight.
[0019]
As the curing agent of the component (c) used in the present invention, conventionally known ones can be used as long as they are usually used for curing an epoxy resin, and are not particularly limited. Specific examples include diethylenetriamine, triethylenetetramine, tetraethylenepentamine, pentaethylenehexamine, diethylaminopropylamine, 3,9-bis (3-aminopropyl) -2,4,8,10-tetraoxaspiro. [5,5] Amines such as undecane, mensendiamine, isophoronediamine, N-aminoethylpiperazine, m-xylenediamine, m-phenylenediamine, diaminodiphenylmethane, diaminodiphenylsulfone, dicyandiamide, adipic dihydrazide, and phenol novolak Resins, phenolic resins such as cresol novolak resins, and polymercaptans such as liquid polymercaptan and polysulfide.
[0020]
Also, maleic anhydride, phthalic anhydride, tetrahydrophthalic anhydride, hexahydrophthalic anhydride, methyltetrahydrophthalic anhydride, methylhexahydrophthalic anhydride, methylnadic anhydride, pyromellitic anhydride, methylcyclohexenetetracarboxylic anhydride And acid anhydrides such as dodecyl succinic anhydride, trimellitic anhydride, cronlendic anhydride, benzophenone tetracarboxylic anhydride, ethylene glycol bis (anhydrotrimate), and the like, alone or in combination of two or more. Can be used as a mixture.
The amount of the curing agent of the component (c) added to the epoxy resin of the component (a) (= active hydrogen equivalent / epoxy equivalent; active hydrogen equivalent is obtained by dividing the molecular weight by the number of reactive hydrogen) is not particularly limited, but It is desirable that the amount of the unreacted component of the component is within a range in which the unreacted component is suppressed to a small amount.
[0021]
In the present invention, a curing accelerator can be used as needed. What is used as a curing accelerator may be a conventionally known one, and is not particularly limited. Examples thereof include imidazoles such as 2-methylimidazole, 2-ethylimidazole, 2-ethyl-4-methylimidazole, 2-phenylimidazole, 2-undecylimidazole, 2-heptadecylimidazole and 2-phenyl-4-methylimidazole. , Organic phosphines such as triphenylphosphine and tributylphosphine, and tertiary amines such as benzyldimethylamine, 2- (dimethylaminomethyl) phenol, 2,4,6-tris (diaminomethyl) phenol and tetramethylhexanediamine , Boron salts such as triphenylphosphine tetraphenyl borate, tetraphenyl phosphonium tetraphenyl borate, triethylamine tetraphenyl borate, 1,4-benzoquinone, 1,4-naphthoquinone, 2,3-di Chill-1,4-benzoquinone, 2,6-dimethyl benzoquinone, quinoid compounds such as 2,3-dimethoxy-1,4-benzoquinone and the like, may be used alone or in combination. The compounding amount of the curing accelerator is not particularly limited as long as the curing acceleration effect can be obtained.
[0022]
The phosphazene compound (d) used in the present invention is a known compound, and has the general formula (1) (where n is an integer of 3 to 15, 1 , R 2 Represents an aryl group which may be the same or different, or an alkyl group having 1 to 6 carbon atoms), and has a cyclic structure of n = 3 to 15 Phosphazene is preferred, and particularly preferred is a cyclic phosphazene compound containing at least 80% by weight of a 6-membered ring and an 8-membered ring of n = 3, 4 in all phosphazene compounds.
[0023]
Further, the substituent R 1 And R 2 Is preferably an aryl group. Substituent R 1 , R 2 Is not particularly limited, but as an example, a methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, tert-butyl group, n-pentyl group, isoamyl group, n-hexyl group, etc. Unsubstituted phenyl groups such as a chain or branched alkyl group, phenyl group, 1-naphthyl group, 2-naphthyl group, 2-methylphenyl group, 3-methylphenyl group, 4-methylphenyl group, 2-ethylphenyl group, A 3-ethylphenyl group, a 4-ethylphenyl group, and a 2- (n-propyl) phenyl group.
[0024]
A 3- (n-propyl) phenyl group, a 4- (n-propyl) phenyl group, a 2-isopropylphenyl group, a 3-isopropylphenyl group, a 4-isopropylphenyl group, a 2- (n-butyl) phenyl group; 3- (n-butyl) phenyl group, 4- (n-butyl) phenyl group, 2- (2-methylpropyl) phenyl group, 3- (2-methylpropyl) phenyl group, 4- (2-methylpropyl) Phenyl group, 2-tert-butylphenyl group, 3-tert-butylphenyl group, 4-tert-butylphenyl group, 2- (n-pentyl) phenyl group, 3- (n-pentyl) phenyl group, 4- ( n-pentyl) phenyl group, 2- (1-methylbutyl) phenyl group, 3- (1-methylbutyl) phenyl group, 4- (1-methylbutyl) phenyl group, 2- (2 (Methylbutyl) phenyl group, 3- (2-methylbutyl) phenyl group, 4- (2-methylbutyl) phenyl group, 2- (3-methylbutyl) phenyl group,-(3-methylbutyl) phenyl group,-(3-methylbutyl) Phenyl group, 2- (1,1-dimethylpropyl) phenyl group, 3- (1,1-dimethylpropyl) phenyl group, 4- (1,1-dimethylpropyl) phenyl group, 2- (2,2-dimethyl Propyl) phenyl group, 3- (2,2-dimethylpropyl) phenyl group, 4- (2,2-dimethylpropyl) phenyl group and 2- (1,2-dimethylpropyl) phenyl group.
[0025]
Also, a 3- (1,2-dimethylpropyl) phenyl group, a 4- (1,2-dimethylpropyl) phenyl group, a 4-dodecylphenyl group, a 2-phenylphenyl group, a 3-phenylphenyl group, a 4-phenylphenyl Group, 2-methoxyphenyl group, 3-methoxyphenyl group, 4-methoxyphenyl group, 2-ethoxyphenyl group, 3-ethoxyphenyl group, mono-substituted phenyl group such as 4-ethoxyphenyl group, 2,3-dimethylphenyl Group, 2,4-dimethylphenyl group, 2,5-dimethylphenyl group, 2,6-dimethylphenyl group, 3,4-dimethylphenyl group, 3,5-dimethylphenyl group, 2-ethyl-3-methylphenyl Group, 2-ethyl-4-methylphenyl group, 2-ethyl-5-methylphenyl group, 2-ethyl-6-methylphenyl group, 3-E -2-methylphenyl group, 3-ethyl-4-methylphenyl group, a 3-ethyl-5-methylphenyl group.
[0026]
Also, a 5-ethyl-2-methylphenyl group, a 4-ethyl-2-methylphenyl group, a 4-ethyl-3-methylphenyl group, a 2-methyl-3-n-propylphenyl group, a 2-methyl-4- group n-propylphenyl group, 2-methyl-5-n-propylphenyl group, 2-methyl-6-n-propylphenyl group, 3-methyl-2-n-propylphenyl group, 3-methyl-4-n- Propylphenyl group, 3-methyl-5-n-propylphenyl group, 5-methyl-2-n-propylphenyl group, 4-methyl-2-n-propylphenyl group, 4-methyl-3-n-propylphenyl Group, 2-methyl-3-isopropylphenyl group, 2-methyl-4-isopropylphenyl group, 2-methyl-5-isopropylphenyl group, 2-methyl-6-isopropylphenyl group 3-methyl-2-isopropylphenyl group, a 3-methyl-4-isopropylphenyl group.
[0027]
Also, a 3-methyl-5-isopropylphenyl group, a 5-methyl-2-isopropylphenyl group, a 4-methyl-2-isopropylphenyl group, a 4-methyl-3-isopropylphenyl group, a 2-methyl-3-n- Butylphenyl group, 2-methyl-4-n-butylphenyl group, 2-methyl-5-n-butylphenyl group, 2-methyl-6-n-butylphenyl group, 3-methyl-2-n-butylphenyl Group, 3-methyl-4-n-butylphenyl group, 3-methyl-5-n-butylphenyl group, 5-methyl-2-n-butylphenyl group, 4-methyl-2-n-butylphenyl group, 4-methyl-3-n-butylphenyl group, 2- (2-methylpropyl) -3-methylphenyl group, 2- (2-methylpropyl) -4-methylphenyl group, 2- (2-methylpropyl Le) -5-methyl phenyl group.
[0028]
Also, a 2- (2-methylpropyl) -6-methylphenyl group, a 3- (2-methylpropyl) -2-methylphenyl group, a 3- (2-methylpropyl) -4-methylphenyl group, a 3- ( 2-methylpropyl) -5-methylphenyl group, 3- (2-methylpropyl) -6-methylphenyl group, 4- (2-methylpropyl) -2-methylphenyl group, 4- (2-methylpropyl) -3-methylphenyl group, 2- (3-methylpropyl) -3-methylphenyl group, 2- (3-methylpropyl) -4-methylphenyl group, 2- (3-methylpropyl) -5-methylphenyl Group, 2- (3-methylpropyl) -6-methylphenyl group, 3- (3-methylpropyl) -2-methylphenyl group, 3- (3-methylpropyl) -4-methylphenyl group, 3- ( 3- Chirupuropiru) -5-methylphenyl group, 3- (3-methylpropyl) -6-methylphenyl group, a 4- (3-methylpropyl) -2-methylphenyl group.
[0029]
Also, a 4- (3-methylpropyl) -3-methylphenyl group, a 2-methyl-3-tert-butylphenyl group, a 2-methyl-4-tert-butylphenyl group, a 2-methyl-5-tert-butyl Phenyl group, 2-methyl-6-tert-butylphenyl group, 3-methyl-2-tert-butylphenyl group, 3-methyl-4-tert-butylphenyl group, 3-methyl-5-tert-butylphenyl group 2-substituted phenyl groups such as, 5-methyl-2-tert-butylphenyl group, 4-methyl-2-tert-butylphenyl group, 4-methyl-3-tert-butylphenyl group, and 2,3,4-trimethyl Polysubstituted phenyl such as phenyl, 2,3,5-trimethylphenyl, 2,3,6-trimethylphenyl, 2,4,6-trimethylphenyl; References and synthesis examples for obtaining these phosphazene compounds are described in JP-B-3-73590, JP-A-9-71708, JP-A-9-183864, and JP-A-11-181429. And Japanese Patent No. 3053617.
Further, these compounds can be prepared by a technique disclosed in JP-A-11-181429 by using a phenylene group, a biphenylene group and a group (5) shown below.
[0030]
Embedded image
[0031]
(Wherein X is -C (CH 3 ) 2 -, -SO 2 -, -S-, or -O-, y represents 0 or 1), and may be cross-linked by a cross-linking group selected from the group consisting of: The phosphazene compound having such a crosslinked structure is specifically produced by reacting a dichlorophosphazene oligomer with an alkali metal salt of a phenol and an alkali metal salt of an aromatic dihydroxy compound. These alkali metal salts are added to the dichlorophosphazene oligomer in a slight excess of the theoretical amount.
[0032]
These phosphazene compounds may be used alone or as a mixture of two or more. Moreover, the 6-membered phosphazene with n = 3 may be used alone or as a mixture with a multi-membered phosphazene with n = 4 or more.
In the present invention, the amount of (d) added depends on the abundance ratio of the component (a) and the component (b), but the total amount of (a), (b), (c) and (d) is reduced to 100% by weight. It is selected from the range of 1 to 40% by weight, preferably 3 to 30% by weight, more preferably 6 to 24% by weight. When the amount of the component (d) is less than 1% by weight, the epoxy resin cannot obtain sufficient flame retardancy. When the amount exceeds 40% by weight, the heat resistance of the resin composition is significantly reduced. It is not preferable because it adversely affects the physical properties of the composition.
[0033]
In the present invention, conventionally known non-halogen and non-antimony flame retardants can be used in addition to the cyclic phosphazene compound as the component (d) as long as the effects of the present invention can be achieved. For example, phosphate esters such as triphenyl phosphate, tricresyl phosphate, trixylenyl phosphate, cresyl diphenyl phosphate, xyenyl diphenyl phosphate, dixylenyl phenyl phosphate, hydroxynon bisphenol, resorcinol bisphosphate, bisphenol A bisphosphate, etc. And metal hydroxides such as magnesium hydroxide, aluminum hydroxide and calcium aluminate, and nitrogen-containing compounds such as triazine compounds, melamine, melamine cyanurate, melamine resins and guanidine compounds.
[0034]
In the present invention, the mixing ratio of the component (b) and the component (d) is based on the total amount of the components (a), (b), (c) and (d) being 100% by weight, and It is desirable that the total of the doubled amount and the content of the component (b) be 25% by weight or more, preferably 40% by weight or more, more preferably 63% by weight or more. If the total of the double content of the component (d) and the content of the component (b) is less than 25% by weight, the epoxy resin cannot obtain sufficient flame retardancy, which is not preferable.
In the resin composition of the present invention, when it is necessary to further improve the rigidity and dimensional stability of the resin composition, an inorganic filler can be added. The filler type can be arbitrarily selected according to the purpose, but glass fiber, glass flake, mica, talc, silica, zircon, alumina, gypsum, quartz, magnesite, kaolin, silicon carbide, calcium carbonate, iron powder, copper powder, etc. are generally used. It is commonly used.
[0035]
To the resin composition of the present invention, in order to further impart other properties, other additives such as a plasticizer, an antioxidant, and a stabilizer such as an ultraviolet absorber, a charge, etc., as long as the effects of the present invention are not impaired. Inhibitors, stress relievers, mold release agents, flow regulators, dyes, sensitizers, coloring pigments, rubbery polymers, or other resins such as polystyrene, ABS resin, polyamide, polybutadiene, polycarbonate and ABS resin Resins such as alloys can be added. Further, conventionally known various flame retardants and flame retardant assistants, for example, alkali metal hydroxides or alkaline earth metal hydroxides such as magnesium hydroxide and aluminum hydroxide containing water of crystallization, zinc borate compounds, Addition of a zinc stannate compound and further an inorganic silicon compound such as silica, kaolin clay, and talc can further improve flame retardancy.
[0036]
The method for producing the resin composition of the present invention is not particularly limited as long as the effects of the present invention can be achieved. For example, the molded article may be prepared by adding (a) an epoxy resin, (b) a polyphenylene ether, (c) a curing agent, and (d) a phosphazene without a solvent or, if necessary, (a), (b), or (c). And (d) are mixed by using a solvent which can be mixed uniformly, cast into a mold, cured, cooled, and removed from the mold. The solvent to be used is not particularly limited as long as various materials can be uniformly mixed and the use does not impair the effects of the present invention.
[0037]
Examples include toluene, xylene, n-hexane, n-pentane and the like. Further, a method of kneading and manufacturing using a kneading machine such as a heating roll, a kneader, a Banbury mixer, an extruder, cooling, pulverizing, and further performing molding by transfer molding, injection molding, compression molding, or the like may be mentioned as an example. it can. The curing method varies depending on the curing agent used, but is not particularly limited. Examples include thermal curing, light curing, curing by pressure, curing by moisture, and the like, but are not limited as long as the curing method can achieve the effects of the present invention. The order of mixing (a), (b), (c), and (d) is not particularly limited as long as the effects of the present invention can be achieved.
[0038]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be specifically described by way of examples, but the present invention is not limited to the following examples, and the method for preparing the composition of the present invention can uniformly mix various materials. There is no particular limitation as long as it is a technique. “%” In the following Examples and Comparative Examples means “% by weight”.
The components used in the examples and comparative examples are as follows.
[0039]
(A) Epoxy resin:
AER2502 (manufactured by Asahi Kasei Epoxy Co., Ltd.); epoxy equivalent: 184 to 186, viscosity (25 ° C.): 9000 to 11000 mPa · s
(B) Polyphenylene ether (PPE):
Poly-2,6-dimethyl-1,4-phenylene ether having a ηsp / c of 0.43 and a weight average molecular weight / number average molecular weight of 2.8 measured in a chloroform solution at 30 ° C. Hereinafter, it is described as PPE.
[0040]
(C) Curing agent:
Pentaethylenehexamine (ethyleneamine mixture) (manufactured by Wako Pure Chemical Industries, Ltd.). Hereinafter, it is referred to as PEHA. In Examples and Comparative Examples, the amount of the curing agent added was determined according to the addition amount calculation formula described in "Souichi Muroi, Shuichi Ishimura, New Polymer Library 25, Epoxy Resins, P93-96". That is, it was determined by the stoichiometric amount = active hydrogen equivalent / epoxy equivalent. The active hydrogen equivalent was determined from active hydrogen equivalent = molecular weight / active hydrogen number.
(D) Phosphazene:
A hexaphenoxyphosphazene represented by the formula (6): 31 In P NMR, a peak other than phenoxyphosphazene represented by the formula (6) is not observed, and the melting point by DSC is 114 ° C. Hereinafter, it is described as phosphazene or FR (flame retardant).
[0041]
Embedded image
[0042]
The flame retardancy evaluation of the resin compositions of Examples and Comparative Examples was performed using a molded test piece having a length of 128 mm x a width of 12.8 mm x a thickness of 1.6 mm based on a UL-94 vertical combustion test, and was performed 10 times. V-0, V-1, V-2 and four levels out of the standard were classified according to the total burning time at the time of flame contact and the presence or absence of cotton ignition due to the dripping material at the time of burning. The evaluation criteria are shown below.
V-0: All of the following conditions are satisfied.
(A) The total of the flame extinction time after the 10 times of flame contact, 5 test pieces twice each, within 50 seconds.
(B) Five test pieces were subjected to flame contact twice each, and the flame extinction time after each flame contact was within 5 seconds.
(C) There is no ignition of absorbent cotton 300 mm below by the dripping material in all the test pieces.
(D) For all test pieces, glowing after the second flame contact was within 30 seconds.
(E) For all test pieces, do not frame until the clamp.
[0043]
V-1: All the following conditions are satisfied.
(A) The total flame extinction time after the flame contact of 10 times, 5 times each for 2 test pieces, is 250 seconds or less.
(B) Five test pieces were subjected to flame contact twice each, and the extinction time after each flame contact was within 30 seconds.
(C) There is no ignition of absorbent cotton 300 mm below by the dripping material in all the test pieces.
(D) For all test pieces, glowing after the second flame contact was within 60 seconds.
(E) For all test pieces, do not frame until the clamp.
[0044]
V-2: All the following conditions are satisfied.
(A) The total flame extinction time after the flame contact of 10 times, 5 times each for 2 test pieces, is 250 seconds or less.
(B) Five test pieces were subjected to flame contact twice each, and the extinction time after each flame contact was within 30 seconds.
(C) At least one of the five test pieces ignited the absorbent cotton 300 mm below by the dripping material.
(D) For all test pieces, glowing after the second flame contact was within 60 seconds.
(E) For all test pieces, do not frame until the clamp.
[0045]
Embodiment 1
After dissolving 24% of phosphazene in 35.3% of AER2502 (epoxy equivalent: 185) at 125 ° C., mixing 35.3% of PPE at 125 ° C., mixing with 5.4% of pentaethylenehexamine at 90 ° C., 128 mm × The sample was poured into a 12.8 mm × 1.6 mm mold and cured at 140 ° C. for 2 hours and then at 190 ° C. for 3 hours. Then, the sample was cooled to room temperature and taken out of the mold. When a flammability test was performed on this molded product, it was V-0. The results are shown in Table 1.
[0046]
Embodiment 2
Using AER2502 (epoxy equivalent 185) 51.0%, phosphazene 24%, PPE 17.0% and pentaethylenehexamine 8.0%, a molded piece was prepared in the same manner as in Example 1, and a flammability test was performed. As a result, it was V-0. The results are shown in Table 1.
[0047]
Embodiment 3
Using AER2502 (epoxy equivalent 185) 31.6%, phosphazene 16%, PPE 47.4% and pentaethylenehexamine 5.0%, a molded piece was prepared in the same manner as in Example 1, and a flammability test was performed. As a result, it was V-1. The results are shown in Table 1.
[0048]
Embodiment 4
Using AER2502 (epoxy equivalent 185) 34.7%, phosphazene 8%, PPE 51.9% and pentaethylenehexamine 5.4%, a molded piece was prepared in the same manner as in Example 1, and a flammability test was performed. As a result, it was V-1. The results are shown in Table 1.
[0049]
Embodiment 5 ~
Embodiment 10
AER2502 (epoxy equivalent: 185), phosphazene, PPE, and pentaethylenehexamine were used in the amounts described in Tables 2 and 3 to produce molded pieces in the same manner as in Example 1, and a flammability test was performed. Example 9 was V-1, and Examples 6, 7, 8 and 10 were out of specification. The results are shown in Tables 2 and 3.
[0050]
[Comparative Example 1]
86.4% of AER2502 (epoxy equivalent: 185) and 13.6% of pentaethylenehexamine are mixed at 90 ° C., poured into a mold of 128 mm × 12.8 mm × 1.6 mm, and heated at 140 ° C. for 2 hours and then at 190 ° C. After curing for 3 hours at ° C, the sample was cooled to room temperature and removed from the mold. When a flammability test was performed on this molded product, it was out of the standard. Table 4 shows the results.
[0051]
[Comparative Example 2]
After dissolving 8% of phosphazene at 125 ° C. in 79.5% of AER2502 (epoxy equivalent: 185), mix with 12.5% of pentaethylenehexamine at 90 ° C., and mold in a mold of 128 mm × 12.8 mm × 1.6 mm. After curing at 140 ° C. for 2 hours and then at 190 ° C. for 3 hours, the sample was cooled to room temperature and removed from the mold. When a flammability test was performed on this molded product, it was out of the standard. Table 4 shows the results.
[0052]
[Comparative Example 3]
A molded piece was prepared in the same manner as in Comparative Example 2 using AER2502 (epoxy equivalent: 185) 72.6%, phosphazene 16%, and pentaethylenehexamine 11.4%, and a flammability test was performed. Met. Table 4 shows the results.
[0053]
[Comparative Example 4]
A molded piece was prepared using AER2502 (epoxy equivalent: 185) 65.7%, phosphazene 24%, and pentaethylenehexamine 10.3% in the same manner as in Comparative Example 2, and a flammability test was performed. Met. Table 4 shows the results.
[0054]
[Comparative Example 5]
After mixing 75.0% of AER2502 (epoxy equivalent: 185) and 13.2% of PPE at 125 ° C, the mixture was mixed with 11.8% of pentaethylenehexamine at 90 ° C, and the mixture was placed in a mold of 128 mm x 12.8 mm x 1.6 mm. After curing at 140 ° C. for 2 hours and then at 190 ° C. for 3 hours, the sample was cooled to room temperature and removed from the mold. When a flammability test was performed on this molded product, it was out of the standard. Table 5 shows the results.
[0055]
[Comparative Example 6]
Using AER2502 (epoxy equivalent) 67.1%, PPE 22.4%, and pentaethylenehexamine 10.5%, a molded piece was produced in the same manner as in Comparative Example 5, and a flammability test was performed. Met. Table 5 shows the results.
[0056]
[Comparative Example 7]
Using AER2502 (epoxy equivalent) 46.4%, PPE 46.4%, and pentaethylenehexamine 7.2%, a molded piece was prepared in the same manner as in Comparative Example 5 and subjected to a flammability test. Met. Table 5 shows the results.
From these results, a method of adding only PPE without adding a flame retardant or a method of adding only flame retardant without adding PPE as a method of making an epoxy resin flame-retardant has a sufficient flame-retardant effect. It can be seen that a curable resin composition having a high degree of flame retardancy can be obtained by the method of adding a PPE and a flame retardant to the epoxy resin according to the present invention, whereas the epoxy resin according to the present invention is not obtained.
[0057]
[Table 1]
[0058]
[Table 2]
[0059]
[Table 3]
[0060]
[Table 4]
[0061]
[Table 5]
[0062]
【The invention's effect】
Advantageous Effects of Invention According to the present invention, it is possible to provide a cured resin composition which is environmentally preferable and has high flame retardancy without containing a halogen compound while suppressing the addition amount of a flame retardant.
Claims (12)
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009073996A (en) * | 2007-09-21 | 2009-04-09 | Panasonic Electric Works Co Ltd | Epoxy resin composition, prepreg using the epoxy resin composition and metal-clad laminated sheet |
JP2010059363A (en) * | 2008-09-05 | 2010-03-18 | Panasonic Electric Works Co Ltd | Polyphenylene ether resin composition, prepreg, metal-clad laminate, and printed wiring board |
US7687556B2 (en) | 2004-09-28 | 2010-03-30 | Isola Usa Corp. | Flame retardant compositions |
JP2011231134A (en) * | 2010-04-23 | 2011-11-17 | Panasonic Electric Works Co Ltd | Resin composition, resin varnish, prepreg, metal-clad laminate, and printed wiring board |
JP2013199650A (en) * | 2013-04-30 | 2013-10-03 | Panasonic Corp | Epoxy resin composition, prepreg using the epoxy resin composition and metal-clad laminated sheet |
-
2002
- 2002-09-04 JP JP2002258549A patent/JP2004091748A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7687556B2 (en) | 2004-09-28 | 2010-03-30 | Isola Usa Corp. | Flame retardant compositions |
JP2009073996A (en) * | 2007-09-21 | 2009-04-09 | Panasonic Electric Works Co Ltd | Epoxy resin composition, prepreg using the epoxy resin composition and metal-clad laminated sheet |
JP2010059363A (en) * | 2008-09-05 | 2010-03-18 | Panasonic Electric Works Co Ltd | Polyphenylene ether resin composition, prepreg, metal-clad laminate, and printed wiring board |
JP2011231134A (en) * | 2010-04-23 | 2011-11-17 | Panasonic Electric Works Co Ltd | Resin composition, resin varnish, prepreg, metal-clad laminate, and printed wiring board |
JP2013199650A (en) * | 2013-04-30 | 2013-10-03 | Panasonic Corp | Epoxy resin composition, prepreg using the epoxy resin composition and metal-clad laminated sheet |
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