JP2014227460A - 光硬化性アクリル系熱伝導組成物、アクリル系熱伝導性シート及びその製造方法 - Google Patents
光硬化性アクリル系熱伝導組成物、アクリル系熱伝導性シート及びその製造方法 Download PDFInfo
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- JP2014227460A JP2014227460A JP2013107731A JP2013107731A JP2014227460A JP 2014227460 A JP2014227460 A JP 2014227460A JP 2013107731 A JP2013107731 A JP 2013107731A JP 2013107731 A JP2013107731 A JP 2013107731A JP 2014227460 A JP2014227460 A JP 2014227460A
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- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 title claims abstract description 102
- 239000000203 mixture Substances 0.000 title claims abstract description 59
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 61
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 60
- 239000003112 inhibitor Substances 0.000 claims abstract description 27
- 239000000178 monomer Substances 0.000 claims abstract description 25
- 230000006866 deterioration Effects 0.000 claims abstract description 24
- 239000011231 conductive filler Substances 0.000 claims abstract description 21
- 230000003405 preventing effect Effects 0.000 claims abstract description 15
- 239000007870 radical polymerization initiator Substances 0.000 claims abstract description 7
- -1 1,1-bis (2-hydroxy-3,5-di-tert-pentylphenyl) ethyl Chemical group 0.000 claims description 22
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 22
- 230000015556 catabolic process Effects 0.000 claims description 22
- 238000006731 degradation reaction Methods 0.000 claims description 22
- 239000003795 chemical substances by application Substances 0.000 claims description 11
- 239000003999 initiator Substances 0.000 claims description 9
- 230000001678 irradiating effect Effects 0.000 claims description 5
- 150000001335 aliphatic alkanes Chemical class 0.000 claims description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 4
- AESQDCMZHBUWPN-UHFFFAOYSA-N 4h-1,3,2-dioxaphosphinine Chemical compound C1OPOC=C1 AESQDCMZHBUWPN-UHFFFAOYSA-N 0.000 claims description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical group [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 3
- GUCYFKSBFREPBC-UHFFFAOYSA-N [phenyl-(2,4,6-trimethylbenzoyl)phosphoryl]-(2,4,6-trimethylphenyl)methanone Chemical group CC1=CC(C)=CC(C)=C1C(=O)P(=O)(C=1C=CC=CC=1)C(=O)C1=C(C)C=C(C)C=C1C GUCYFKSBFREPBC-UHFFFAOYSA-N 0.000 claims description 3
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical group [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 3
- 239000000395 magnesium oxide Substances 0.000 claims description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 3
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 3
- 239000002530 phenolic antioxidant Substances 0.000 claims description 3
- 229910052698 phosphorus Inorganic materials 0.000 claims description 3
- 239000011574 phosphorus Substances 0.000 claims description 3
- GOXQRTZXKQZDDN-UHFFFAOYSA-N 2-Ethylhexyl acrylate Chemical group CCCCC(CC)COC(=O)C=C GOXQRTZXKQZDDN-UHFFFAOYSA-N 0.000 claims description 2
- PBOSTUDLECTMNL-UHFFFAOYSA-N lauryl acrylate Chemical compound CCCCCCCCCCCCOC(=O)C=C PBOSTUDLECTMNL-UHFFFAOYSA-N 0.000 claims description 2
- 239000003505 polymerization initiator Substances 0.000 claims description 2
- 239000001273 butane Substances 0.000 claims 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 claims 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 claims 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 abstract description 49
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 9
- 229910052760 oxygen Inorganic materials 0.000 abstract description 9
- 239000001301 oxygen Substances 0.000 abstract description 9
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 230000006835 compression Effects 0.000 description 18
- 238000007906 compression Methods 0.000 description 18
- 230000032683 aging Effects 0.000 description 15
- 230000014759 maintenance of location Effects 0.000 description 11
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- 239000004014 plasticizer Substances 0.000 description 10
- 238000004040 coloring Methods 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 7
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 6
- 239000011230 binding agent Substances 0.000 description 5
- 239000000945 filler Substances 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 5
- 229920001296 polysiloxane Polymers 0.000 description 5
- KWOLFJPFCHCOCG-UHFFFAOYSA-N Acetophenone Chemical compound CC(=O)C1=CC=CC=C1 KWOLFJPFCHCOCG-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 4
- 238000010525 oxidative degradation reaction Methods 0.000 description 4
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 3
- 239000004925 Acrylic resin Substances 0.000 description 3
- 229920000178 Acrylic resin Polymers 0.000 description 3
- 239000007983 Tris buffer Substances 0.000 description 3
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 3
- 125000000217 alkyl group Chemical group 0.000 description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 3
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 3
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 description 3
- 238000000016 photochemical curing Methods 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- KWVGIHKZDCUPEU-UHFFFAOYSA-N 2,2-dimethoxy-2-phenylacetophenone Chemical compound C=1C=CC=CC=1C(OC)(OC)C(=O)C1=CC=CC=C1 KWVGIHKZDCUPEU-UHFFFAOYSA-N 0.000 description 2
- NPFYZDNDJHZQKY-UHFFFAOYSA-N 4-Hydroxybenzophenone Chemical compound C1=CC(O)=CC=C1C(=O)C1=CC=CC=C1 NPFYZDNDJHZQKY-UHFFFAOYSA-N 0.000 description 2
- 229930185605 Bisphenol Natural products 0.000 description 2
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Chemical compound CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 description 2
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical class OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 2
- 230000002292 Radical scavenging effect Effects 0.000 description 2
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 2
- 230000001588 bifunctional effect Effects 0.000 description 2
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 2
- VFHVQBAGLAREND-UHFFFAOYSA-N diphenylphosphoryl-(2,4,6-trimethylphenyl)methanone Chemical compound CC1=CC(C)=CC(C)=C1C(=O)P(=O)(C=1C=CC=CC=1)C1=CC=CC=C1 VFHVQBAGLAREND-UHFFFAOYSA-N 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 150000002432 hydroperoxides Chemical class 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 2
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 description 2
- 125000001972 isopentyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 description 2
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- DTGKSKDOIYIVQL-WEDXCCLWSA-N (+)-borneol Chemical group C1C[C@@]2(C)[C@@H](O)C[C@@H]1C2(C)C DTGKSKDOIYIVQL-WEDXCCLWSA-N 0.000 description 1
- QNODIIQQMGDSEF-UHFFFAOYSA-N (1-hydroxycyclohexyl)-phenylmethanone Chemical compound C=1C=CC=CC=1C(=O)C1(O)CCCCC1 QNODIIQQMGDSEF-UHFFFAOYSA-N 0.000 description 1
- RBKHNGHPZZZJCI-UHFFFAOYSA-N (4-aminophenyl)-phenylmethanone Chemical compound C1=CC(N)=CC=C1C(=O)C1=CC=CC=C1 RBKHNGHPZZZJCI-UHFFFAOYSA-N 0.000 description 1
- 125000006527 (C1-C5) alkyl group Chemical group 0.000 description 1
- 0 *c(cc1*c2cc(*)cc(*)c2OC(C=C)=O)cc(*)c1O Chemical compound *c(cc1*c2cc(*)cc(*)c2OC(C=C)=O)cc(*)c1O 0.000 description 1
- HECLRDQVFMWTQS-RGOKHQFPSA-N 1755-01-7 Chemical compound C1[C@H]2[C@@H]3CC=C[C@@H]3[C@@H]1C=C2 HECLRDQVFMWTQS-RGOKHQFPSA-N 0.000 description 1
- KGRVJHAUYBGFFP-UHFFFAOYSA-N 2,2'-Methylenebis(4-methyl-6-tert-butylphenol) Chemical compound CC(C)(C)C1=CC(C)=CC(CC=2C(=C(C=C(C)C=2)C(C)(C)C)O)=C1O KGRVJHAUYBGFFP-UHFFFAOYSA-N 0.000 description 1
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- OCSIKZYSDOXRPA-UHFFFAOYSA-N 2,2-bis(hydroxymethyl)-3-octadecylhenicosane-1,3-diol dihydroxyphosphanyl dihydrogen phosphite Chemical compound OP(O)OP(O)O.C(CCCCCCCCCCCCCCCCC)C(O)(C(CO)(CO)CO)CCCCCCCCCCCCCCCCCC OCSIKZYSDOXRPA-UHFFFAOYSA-N 0.000 description 1
- BSYJHYLAMMJNRC-UHFFFAOYSA-N 2,4,4-trimethylpentan-2-ol Chemical compound CC(C)(C)CC(C)(C)O BSYJHYLAMMJNRC-UHFFFAOYSA-N 0.000 description 1
- LZHUBCULTHIFNO-UHFFFAOYSA-N 2,4-dihydroxy-1,5-bis[4-(2-hydroxyethoxy)phenyl]-2,4-dimethylpentan-3-one Chemical compound C=1C=C(OCCO)C=CC=1CC(C)(O)C(=O)C(O)(C)CC1=CC=C(OCCO)C=C1 LZHUBCULTHIFNO-UHFFFAOYSA-N 0.000 description 1
- DXCHWXWXYPEZKM-UHFFFAOYSA-N 2,4-ditert-butyl-6-[1-(3,5-ditert-butyl-2-hydroxyphenyl)ethyl]phenol Chemical compound C=1C(C(C)(C)C)=CC(C(C)(C)C)=C(O)C=1C(C)C1=CC(C(C)(C)C)=CC(C(C)(C)C)=C1O DXCHWXWXYPEZKM-UHFFFAOYSA-N 0.000 description 1
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- ZSMMOCNTIRCAAL-UHFFFAOYSA-N 2-[2-[2-[2-(3-tert-butyl-4-hydroxy-5-methylphenyl)propanoyloxy]ethoxy]ethoxy]ethyl 2-(3-tert-butyl-4-hydroxy-5-methylphenyl)propanoate Chemical compound C=1C(C)=C(O)C(C(C)(C)C)=CC=1C(C)C(=O)OCCOCCOCCOC(=O)C(C)C1=CC(C)=C(O)C(C(C)(C)C)=C1 ZSMMOCNTIRCAAL-UHFFFAOYSA-N 0.000 description 1
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- TXBCBTDQIULDIA-UHFFFAOYSA-N 2-[[3-hydroxy-2,2-bis(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propane-1,3-diol Chemical compound OCC(CO)(CO)COCC(CO)(CO)CO TXBCBTDQIULDIA-UHFFFAOYSA-N 0.000 description 1
- SHJXSYJQBXYBGA-UHFFFAOYSA-N 2-cyclohexyl-2-hydroxy-1-phenylethanone Chemical compound C=1C=CC=CC=1C(=O)C(O)C1CCCCC1 SHJXSYJQBXYBGA-UHFFFAOYSA-N 0.000 description 1
- PCKZAVNWRLEHIP-UHFFFAOYSA-N 2-hydroxy-1-[4-[[4-(2-hydroxy-2-methylpropanoyl)phenyl]methyl]phenyl]-2-methylpropan-1-one Chemical compound C1=CC(C(=O)C(C)(O)C)=CC=C1CC1=CC=C(C(=O)C(C)(C)O)C=C1 PCKZAVNWRLEHIP-UHFFFAOYSA-N 0.000 description 1
- RIWRBSMFKVOJMN-UHFFFAOYSA-N 2-methyl-1-phenylpropan-2-ol Chemical compound CC(C)(O)CC1=CC=CC=C1 RIWRBSMFKVOJMN-UHFFFAOYSA-N 0.000 description 1
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- 125000004493 2-methylbut-1-yl group Chemical group CC(C*)CC 0.000 description 1
- 125000003229 2-methylhexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- HXIQYSLFEXIOAV-UHFFFAOYSA-N 2-tert-butyl-4-(5-tert-butyl-4-hydroxy-2-methylphenyl)sulfanyl-5-methylphenol Chemical compound CC1=CC(O)=C(C(C)(C)C)C=C1SC1=CC(C(C)(C)C)=C(O)C=C1C HXIQYSLFEXIOAV-UHFFFAOYSA-N 0.000 description 1
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- GPNYZBKIGXGYNU-UHFFFAOYSA-N 2-tert-butyl-6-[(3-tert-butyl-5-ethyl-2-hydroxyphenyl)methyl]-4-ethylphenol Chemical compound CC(C)(C)C1=CC(CC)=CC(CC=2C(=C(C=C(CC)C=2)C(C)(C)C)O)=C1O GPNYZBKIGXGYNU-UHFFFAOYSA-N 0.000 description 1
- SHDUFLICMXOBPA-UHFFFAOYSA-N 3,9-bis(2,4,6-tritert-butylphenoxy)-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecane Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC(C(C)(C)C)=C1OP1OCC2(COP(OC=3C(=CC(=CC=3C(C)(C)C)C(C)(C)C)C(C)(C)C)OC2)CO1 SHDUFLICMXOBPA-UHFFFAOYSA-N 0.000 description 1
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- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
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- 125000002889 tridecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- QXJQHYBHAIHNGG-UHFFFAOYSA-N trimethylolethane Chemical compound OCC(C)(CO)CO QXJQHYBHAIHNGG-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
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- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
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- C—CHEMISTRY; METALLURGY
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- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
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- C08F2/46—Polymerisation initiated by wave energy or particle radiation
- C08F2/48—Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- 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
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- C—CHEMISTRY; METALLURGY
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C—CHEMISTRY; METALLURGY
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- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
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- C09K5/08—Materials not undergoing a change of physical state when used
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- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
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- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
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- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/20—Esters of polyhydric alcohols or phenols, e.g. 2-hydroxyethyl (meth)acrylate or glycerol mono-(meth)acrylate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08F222/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
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- Combustion & Propulsion (AREA)
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Abstract
【解決手段】アクリル系熱伝導性シート用に適した光硬化性アクリル系熱伝導組成物は、(メタ)アクリル酸エステルモノマーと、(メタ)アクリル酸エステルモノマー100質量部に対し、熱伝導性フィラ300〜2000質量部と、光ラジカル重合開始剤0.5〜7.0質量部と、一次酸化防止剤0.5〜4.0質量部と、二次酸化防止剤0.5〜8.0質量部と、熱劣化防止剤0.1〜4.0質量部とを含有する。
【選択図】なし
Description
該光硬化性アクリル系熱伝導組成物として、(メタ)アクリル酸エステルモノマーと、(メタ)アクリル酸エステルモノマー100質量部に対し、熱伝導性フィラ300〜2000質量部と、光ラジカル重合開始剤0.5〜7.0質量部と、一次酸化防止剤0.5〜4.0質量部と、二次酸化防止剤0.5〜8.0質量部と、熱劣化防止剤0.1〜4.0質量部とを含有するものを使用することを特徴とする製造方法を提供する。
本発明は、アクリル系熱伝導性シート用に適した光硬化性アクリル系熱伝導組成物である。この光硬化性アクリル系熱伝導組成物は、(メタ)アクリル酸エステルモノマーと、熱伝導性フィラと、光ラジカル重合開始剤と、一次酸化防止剤と、二次酸化防止剤と、熱劣化防止剤とを、特定割合で含有する。
(メタ)アクリル酸エステルモノマーとしては、公知の単官能(メタ)アクリレート(ここで、(メタ)アクリレートにはアクリレートとメタクリレートとが包含される)、二官能以上の多官能(メタ)アクリレートを使用することができる。本発明においては、接着剤を熱硬化性とするために、アクリル系モノマーの少なくとも一部に多官能(メタ)アクリレートを使用することが好ましい。
熱劣化防止剤は、光硬化性アクリル系熱伝導組成物の熱と酸素による熱劣化を防止するものである。熱劣化防止剤は、通常、熱と酸素との作用により生じたポリマーラジカルを捕捉し、安定なラジカル化合物として保持するものである。
一次酸化防止剤は、パーオキシラジカルを捕捉して樹脂の酸化劣化を防止するためのものであり、従来公知の一次酸化防止剤を適用することができ、好ましくはフェノール系酸化防止剤を使用することができる。フェノール系酸化防止剤としては、ヘキサメチレンビス〔(3,5−ジ−tert−ブチル−4−ヒドロキシフェニル)プロピオン酸アミド〕、4,4′−チオビス(6−tert−ブチル−m−クレゾール)、2,2′−メチレンビス(4−メチル−6−tert−ブチルフェノール)、2,2′−メチレンビス(4−エチル−6−tert−ブチルフェノール)、ビス〔3,3−ビス(4−ヒドロキシ−3−tert−ブチルフェニル)ブチリックアシッド〕グリコールエステル、2,2′−エチリデンビス(4,6−ジ−tert−ブチルフェノール)、2,2′−エチリデンビス(4−sec−ブチル−6−tert−ブチルフェノール)、1,1,3−トリス(2−メチル−4−ヒドロキシ−5−tert−ブチルフェニル)ブタン、ビス〔2−tert−ブチル−4−メチル−6−(2−ヒドロキシ−3−tert−ブチル−5−メチルベンジル)フェニル〕テレフタレート、1,3,5−トリス(3,5−ジ−tert−ブチル−4−ヒドロキシベンジル)−2,4,6−トリメチルベンゼン、1,3,5−トリス〔(3,5−ジ−tert−ブチル−4−ヒドロキシフェニル)プロピオニルオキシエチル〕イソシアヌレート、テトラキス〔メチレン−3−(3,5−ジ−tert−ブチル−4−ヒドロキシフェニル)プロピオネート〕メタン、2−tert−ブチル−4−メチル−6−(2−アクリロイルオキシ−3−tert−ブチル−5−メチルベンジル)フェノール、3,9−ビス〔1,1−ジメチル−2−{(3−tert−ブチル−4−ヒドロキシ−5−メチルフェニル)プロピオニルオキシ}エチル〕−2,4,8,10−テトラオキサスピロ〔5.5〕ウンデカン、トリエチレングリコールビス〔(3−tert−ブチル−4−ヒドロキシ−5−メチルフェニル)プロピオネート〕、n‐オクタデシル‐3‐(4′−ヒドロキシ−3′,5′−ジ−tert−ブチルフェニル)ブタン等が挙げられる。中でも、n−オクタデシル−3−(4′−ヒドロキシ−3′,5′−ジ−tert−ブチルフェニル)ブタンを好ましく挙げることができる。
二次酸化防止剤は、ヒドロオキサイドラジカルを分解して樹脂の酸化劣化を防止するためのものであり、従来公知の二次酸化防止剤を適用することができ、好ましくはリン系酸化防止剤を使用することができる。リン系酸化防止剤としては、トリスノニルフェニルホスファイト、トリス(2,4−ジ−tert−ブチルフェニル)ホスファイト、トリス〔2−tert−ブチル−4−(3−tert−ブチル−4−ヒドロキシ−5−メチルフェニルチオ)−5−メチルフェニル〕ホスファイト、トリデシルホスファイト、オクチルジフェニルホスファイト、ジ(デシル)モノフェニルホスファイト、ジ(トリデシル)ペンタエリスリトールジホスファイト、ジステアリルペンタエリスリトールジホスファイト、ジ (ノニルフェニル)ペンタエリスリトールジホスファイト、ビス(2,4−ジ−tert−ブチルフェニル)ペンタエリスリトールジホスファイト、ビス(2,6−ジ−tert−ブチル−4−メチルフェニル)ペンタエリスリトールジホスファイト、ビス(2,4,6−トリ−tert−ブチルフェニル)ペンタエリスリトールジホスファイト、テトラ(トリデシル)イソプロピリデンジフェノールジホスファイト、テトラ(トリデシル)−4,4’−n−ブチリデンビス(2−tert−ブチル−5−メチルフェノール)ジホスファイト、ヘキサ(トリデシル)−1,1,3−トリス(2−メチル−4−ヒドロキシ−5−tert−ブチルフェニル)ブタントリホスファイト、テトラキス(2,4−ジ−tert−ブチルフェニル)ビフェニレンジホスホナイト、9,10−ジハイドロ−9−オキサ−10−ホスファフェナンスレン−10−オキサイド、2,2′−メチレンビス(4−メチル−6−tert−ブチルフェニル)−2−エチルヘキシルホスファイト、4−[3−[(2,4,8,10−テトラ−tert−ブチルジベンゾ[d,f][1,3,2]ジオキサホスフェピン)‐6‐イルオキシ]プロピル]−2−メチル−6−tert−ブチルフェノール等を挙げることができる。中でも、4−[3−[(2,4,8,10−テトラ−tert−ブチルジベンゾ[d,f][1,3,2]ジオキサホスフェピン)‐6‐イルオキシ]プロピル]−2−メチル−6−tert−ブチルフェノールを好ましく挙げることができる。
光ラジカル重合開始剤としては、従来公知の光ラジカル重合開始剤を適用することができる。例えば、アセトフェノン系光重合開始剤として、2−ヒドロキシ−2−シクロへキシルアセトフェノン(Irgacure184、BASFジャパン(株))、α−ヒドロキシ−α,α′−ジメチルアセトフェノン(Darocure1173、BASFジャパン(株))、2,2−ジメトキシ−2−フェニルアセトフェノン(Irgacure651、BASFジャパン(株))、4−(2−ヒドロキシエトキシ)フェニル(2−ヒドロキシ−2−プロピル)ケトン(Darocure2959、BASFジャパン(株))、2−ヒドロキシ−1−{4−[2−ヒドロキシ−2−メチル−プロピオニル]−ベンジル}フェニル}−2−メチル−プロパン−1−オン(Irgacure127、BASFジャパン(株))等が挙げられる。ベンジルケタール系光重合開始剤として、ベンゾフェノン、フルオレノン、ジベンゾスベロン、4−アミノベンゾフェノン、4,4′−ジアミノベンゾフェノン、4−ヒドロキシベンゾフェノン、4−クロロベンゾフェノン、4,4′−ジクロロベンゾフェノン等が挙げられる。リン系光重合開始剤として、ビス(2,4,6−トリメチルベンゾイル)−フェニルフォスフィンオキサイド(Irgacure819、BASFジャパン(株))、(2,4,6−トリメチルベンゾイル−ジフェニルフォスフィンオキサイド(DarocureTPO、チバジャパン社製)等が挙げられる。中でも、円滑な光硬化を実現する点から、ビス(2,4,6−トリメチルベンゾイル)−フェニルフォスフィンオキサイド又はα−ヒドロキシ−α,α′−ジメチルアセトフェノンを挙げることができる。
熱伝導性フィラとしては、球状、扁平状、繊維状の従来公知の熱伝導性フィラを使用することができる。形状や大きさの異なるものを2種以上併用してもよい。
光硬化性アクリル系熱伝導組成物は、それぞれ所定の配合量で、(メタ)アクリル酸エステルモノマーと、熱伝導性フィラと、光ラジカル重合開始剤と、一次酸化防止剤と、二次酸化防止剤と、更に熱劣化防止剤と、必要により配合されるその他の添加剤とを、常法により、例えば衛星式撹拌装置((株)シンキー)により均一に混合することにより調製することができる。
本発明の光硬化性アクリル系熱伝導組成物は、シート状光硬化物とすることによりアクリル系熱伝導性シートとして使用できる。即ち、熱伝導性フィラを含有する光硬化性アクリル系熱伝導組成物を、シート状に成形し、紫外線を照射して光重合させることによりアクリル系熱伝導性シートを製造することができる。具体的には、まず、以上説明した熱伝導性フィラを含有する光硬化性アクリル系熱伝導組成物を、カレンダー法等の常法により、通常500〜2000μm厚のシート状に成形する。このシートに対し、紫外線ランプから、300〜400nmに最大強度を持つ紫外線を、1mW/cm2の照射強度で、シートの両面それぞれに同時に5分間照射して光重合硬化させることによりアクリル系熱伝導性シートを製造することができる。
実施例1〜2、比較例1〜5
表1の配合の成分を、衛星式撹拌装置((株)シンキー)を用いて均一に混合することにより光硬化性アクリル系熱導電組成物を調製した。次に、この光硬化性アクリル系導電組成物を、バーコーターより1000μm厚のシートに成型した。このシートに対し、300〜400nmの波長に最大強度を持つ紫外線ランプから、1mW/cm2の照射強度で、シートの両面それぞれに同時に5分間照射して光重合硬化させることによりアクリル系熱伝導性シートを製造した。
得られたアクリル系熱伝導性シートの柔軟性が、熱と酸素とによる熱劣化により失われる程度を、125℃又は150℃、100時間のエージング処理後の圧縮維持率を測定することにより評価した。併せて、エージング処理後の着色の度合いを目視観察した。得られた結果を表1に示す。
Claims (12)
- アクリル系熱伝導性シート用に適した光硬化性アクリル系熱伝導組成物であって、(メタ)アクリル酸エステルモノマーと、(メタ)アクリル酸エステルモノマー100質量部に対し、熱伝導性フィラ300〜2000質量部と、光ラジカル重合開始剤0.5〜7.0質量部と、一次酸化防止剤0.5〜4.0質量部と、二次酸化防止剤0.5〜8.0質量部と、熱劣化防止剤0.1〜4.0質量部とを含有することを特徴とする光硬化性アクリル系熱伝導組成物。
- 熱劣化防止剤が、1,1‐ビス(2‐ヒドロキシ‐3‐tert‐アルキル−5−アルキルフェニル)アルカンのアクリル酸モノエステルである請求項1記載の光硬化性アクリル系熱伝導組成物。
- 熱劣化防止剤が、1,1‐ビス(2‐ヒドロキシ‐3,5‐ジ‐tert‐アルキルフェニル)アルカンのアクリル酸モノエステルである請求項1記載の光硬化性アクリル系熱伝導組成物。
- 熱劣化防止剤が、1,1‐ビス(2‐ヒドロキシ‐3,5‐ジ‐tert‐ペンチルフェニル)エチルのアクリル酸モノエステルである請求項1記載の光硬化性アクリル系熱伝導組成物。
- 一次酸化防止剤がフェノール系酸化防止剤であり、二次酸化防止剤がリン系酸化防止剤である請求項1〜4のいずれかに記載の光硬化性アクリル系熱伝導組成物。
- 一次酸化防止剤がn‐オクタデシル‐3‐(4′‐ヒドロキシ‐3′,5′‐ジ‐tブチルフェニル)ブタンであり、二次酸化防止剤が、4‐[3‐[(2,4,8,10‐テトラ‐tert‐ブチルジベンゾ[d,f][1,3,2]ジオキサホスフェピン)‐6‐イルオキシ]プロピル]‐2‐メチル‐6‐tert‐ブチルフェノールである請求項1〜5のいずれかに記載の光硬化性アクリル系熱伝導組成物。
- 一次酸化防止剤100質量部に対する、二次酸化防止剤の配合量が50〜270質量部であり、熱劣化防止剤の配合量が10〜13質量部である請求項1〜6のいずれかに記載の光硬化性アクリル系熱伝導組成物。
- (メタ)アクリル酸エステルモノマーが、2‐エチルヘキシルアクリレート又はラウリルアクリレートである請求項1〜7のいずれかに記載の光硬化性アクリル系熱伝導組成物。
- 光ラジカル重合開始剤が、ビス(2,4,6‐トリメチルベンゾイル)‐フェニルフォスフィンオキサイドである請求項1〜8のいずれかに記載の光硬化性アクリル系熱伝導組成物。
- 熱伝導性フィラが、水酸化アルミニウム、アルミナ又は酸化マグネシウムである請求項1〜9のいずれかに記載の光硬化性アクリル系熱伝導組成物。
- 請求項1〜10のいずれかに記載の光硬化性アクリル系熱伝導組成物のシート状光硬化物からなることを特徴とするアクリル系熱伝導性シート。
- 熱伝導性フィラを含有する光硬化性アクリル系熱伝導組成物を、シート状に成形し、紫外線を照射して光重合させることによりアクリル系熱伝導性シートを製造する方法において、
該光硬化性アクリル系熱伝導組成物として、(メタ)アクリル酸エステルモノマーと、(メタ)アクリル酸エステルモノマー100質量部に対し、熱伝導性フィラ300〜2000質量部と、光ラジカル重合開始剤0.5〜7.0質量部と、一次酸化防止剤0.5〜4.0質量部と、二次酸化防止剤0.5〜8.0質量部と、熱劣化防止剤0.1〜4.0質量部とを含有するものを使用することを特徴とする製造方法。
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JP2018172594A (ja) * | 2017-03-31 | 2018-11-08 | 積水化学工業株式会社 | 無機フィラー含有光硬化性組成物、及び、無機フィラー含有シート |
JP2020173190A (ja) * | 2019-04-11 | 2020-10-22 | 日本精工株式会社 | 磁気式ロータリエンコーダ及び転がり軸受ユニット |
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JP2021034637A (ja) * | 2019-08-28 | 2021-03-01 | 株式会社巴川製紙所 | 電波吸収材料 |
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JP6212950B2 (ja) | 2017-10-18 |
TWI643945B (zh) | 2018-12-11 |
TW201510205A (zh) | 2015-03-16 |
WO2014188841A1 (ja) | 2014-11-27 |
CN105209499A (zh) | 2015-12-30 |
EP3000831B1 (en) | 2018-11-07 |
CN105209499B (zh) | 2017-12-05 |
US9416254B2 (en) | 2016-08-16 |
EP3000831A4 (en) | 2017-01-25 |
US20160024279A1 (en) | 2016-01-28 |
EP3000831A1 (en) | 2016-03-30 |
KR102184853B1 (ko) | 2020-12-01 |
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