JP2007056145A - Thermoplastic resin composition - Google Patents
Thermoplastic resin composition Download PDFInfo
- Publication number
- JP2007056145A JP2007056145A JP2005243542A JP2005243542A JP2007056145A JP 2007056145 A JP2007056145 A JP 2007056145A JP 2005243542 A JP2005243542 A JP 2005243542A JP 2005243542 A JP2005243542 A JP 2005243542A JP 2007056145 A JP2007056145 A JP 2007056145A
- Authority
- JP
- Japan
- Prior art keywords
- group
- thermoplastic resin
- polymer
- resin composition
- vinyl aromatic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229920005992 thermoplastic resin Polymers 0.000 title claims abstract description 51
- 239000011342 resin composition Substances 0.000 title claims abstract description 35
- 229920001971 elastomer Polymers 0.000 claims abstract description 111
- 239000000806 elastomer Substances 0.000 claims abstract description 102
- -1 vinyl aromatic hydrocarbons Chemical class 0.000 claims abstract description 86
- 229920000642 polymer Polymers 0.000 claims abstract description 70
- 229920002554 vinyl polymer Polymers 0.000 claims abstract description 55
- 150000001993 dienes Chemical class 0.000 claims abstract description 54
- 239000002734 clay mineral Substances 0.000 claims abstract description 52
- 229920001400 block copolymer Polymers 0.000 claims abstract description 43
- 125000000524 functional group Chemical group 0.000 claims abstract description 37
- 229920006285 olefinic elastomer Polymers 0.000 claims abstract description 3
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 53
- 239000003607 modifier Substances 0.000 claims description 16
- 125000003700 epoxy group Chemical group 0.000 claims description 11
- 125000003277 amino group Chemical group 0.000 claims description 10
- 229920005604 random copolymer Polymers 0.000 claims description 9
- 125000005372 silanol group Chemical group 0.000 claims description 9
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 8
- 125000004018 acid anhydride group Chemical group 0.000 claims description 7
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 7
- 125000001841 imino group Chemical group [H]N=* 0.000 claims description 6
- 150000001336 alkenes Chemical class 0.000 claims 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims 1
- 238000005984 hydrogenation reaction Methods 0.000 abstract description 33
- 239000000203 mixture Substances 0.000 description 31
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 28
- 238000000034 method Methods 0.000 description 25
- 229910003475 inorganic filler Inorganic materials 0.000 description 18
- 239000011256 inorganic filler Substances 0.000 description 18
- 229920001577 copolymer Polymers 0.000 description 16
- 238000006116 polymerization reaction Methods 0.000 description 15
- 239000003054 catalyst Substances 0.000 description 13
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 12
- 150000001875 compounds Chemical class 0.000 description 12
- 229920005989 resin Polymers 0.000 description 12
- 239000011347 resin Substances 0.000 description 12
- 239000002904 solvent Substances 0.000 description 12
- 239000003795 chemical substances by application Substances 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 11
- 239000005060 rubber Substances 0.000 description 11
- 239000000377 silicon dioxide Substances 0.000 description 11
- 230000000704 physical effect Effects 0.000 description 10
- 239000000243 solution Substances 0.000 description 10
- 238000004898 kneading Methods 0.000 description 9
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 8
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 7
- 239000004743 Polypropylene Substances 0.000 description 7
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 7
- 238000000465 moulding Methods 0.000 description 7
- 229920001155 polypropylene Polymers 0.000 description 7
- MZRVEZGGRBJDDB-UHFFFAOYSA-N N-Butyllithium Chemical compound [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 description 6
- 239000004793 Polystyrene Substances 0.000 description 6
- 239000006087 Silane Coupling Agent Substances 0.000 description 6
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 6
- 229930195733 hydrocarbon Natural products 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- 229920002223 polystyrene Polymers 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 5
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 5
- 239000004215 Carbon black (E152) Substances 0.000 description 5
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 5
- 238000005481 NMR spectroscopy Methods 0.000 description 5
- 239000002253 acid Substances 0.000 description 5
- 239000000654 additive Substances 0.000 description 5
- 230000032798 delamination Effects 0.000 description 5
- 229920001519 homopolymer Polymers 0.000 description 5
- 229910052500 inorganic mineral Inorganic materials 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 229910000000 metal hydroxide Inorganic materials 0.000 description 5
- 150000004692 metal hydroxides Chemical class 0.000 description 5
- 229910044991 metal oxide Inorganic materials 0.000 description 5
- 150000004706 metal oxides Chemical class 0.000 description 5
- 239000011707 mineral Substances 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 5
- 150000002900 organolithium compounds Chemical class 0.000 description 5
- 229920005672 polyolefin resin Polymers 0.000 description 5
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 5
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 5
- 229910001868 water Inorganic materials 0.000 description 5
- 239000004711 α-olefin Substances 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 239000004927 clay Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 150000002430 hydrocarbons Chemical class 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 239000000155 melt Substances 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- CYIDZMCFTVVTJO-UHFFFAOYSA-N pyromellitic acid Chemical compound OC(=O)C1=CC(C(O)=O)=C(C(O)=O)C=C1C(O)=O CYIDZMCFTVVTJO-UHFFFAOYSA-N 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 3
- 239000005977 Ethylene Substances 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- KWYHDKDOAIKMQN-UHFFFAOYSA-N N,N,N',N'-tetramethylethylenediamine Chemical compound CN(C)CCN(C)C KWYHDKDOAIKMQN-UHFFFAOYSA-N 0.000 description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-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
- 150000008065 acid anhydrides Chemical class 0.000 description 3
- 239000006229 carbon black Substances 0.000 description 3
- 238000005341 cation exchange Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000005227 gel permeation chromatography Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 3
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 3
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 3
- 150000004010 onium ions Chemical group 0.000 description 3
- 239000012766 organic filler Substances 0.000 description 3
- 150000002902 organometallic compounds Chemical class 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229920001897 terpolymer Polymers 0.000 description 3
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 3
- NYCCIHSMVNRABA-UHFFFAOYSA-N 1,3-diethylimidazolidin-2-one Chemical compound CCN1CCN(CC)C1=O NYCCIHSMVNRABA-UHFFFAOYSA-N 0.000 description 2
- PBLZLIFKVPJDCO-UHFFFAOYSA-N 12-aminododecanoic acid Chemical compound NCCCCCCCCCCCC(O)=O PBLZLIFKVPJDCO-UHFFFAOYSA-N 0.000 description 2
- UUEWCQRISZBELL-UHFFFAOYSA-N 3-trimethoxysilylpropane-1-thiol Chemical compound CO[Si](OC)(OC)CCCS UUEWCQRISZBELL-UHFFFAOYSA-N 0.000 description 2
- WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-methyl-1-pentene Chemical compound CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- RGSFGYAAUTVSQA-UHFFFAOYSA-N Cyclopentane Chemical compound C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 description 2
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 description 2
- YNQLUTRBYVCPMQ-UHFFFAOYSA-N Ethylbenzene Chemical compound CCC1=CC=CC=C1 YNQLUTRBYVCPMQ-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical group CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 2
- 239000005909 Kieselgur Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical group [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 2
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Chemical compound P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical group OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 239000004734 Polyphenylene sulfide Substances 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 239000004902 Softening Agent Substances 0.000 description 2
- 235000021355 Stearic acid Nutrition 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical group [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- RJDOZRNNYVAULJ-UHFFFAOYSA-L [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[F-].[F-].[Mg++].[Mg++].[Mg++].[Al+3].[Si+4].[Si+4].[Si+4].[K+] Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[F-].[F-].[Mg++].[Mg++].[Mg++].[Al+3].[Si+4].[Si+4].[Si+4].[K+] RJDOZRNNYVAULJ-UHFFFAOYSA-L 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 125000003172 aldehyde group Chemical group 0.000 description 2
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 125000003368 amide group Chemical group 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 150000003863 ammonium salts Chemical class 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- 239000012298 atmosphere Substances 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- QMKYBPDZANOJGF-UHFFFAOYSA-N benzene-1,3,5-tricarboxylic acid Chemical compound OC(=O)C1=CC(C(O)=O)=CC(C(O)=O)=C1 QMKYBPDZANOJGF-UHFFFAOYSA-N 0.000 description 2
- UORVGPXVDQYIDP-UHFFFAOYSA-N borane Chemical compound B UORVGPXVDQYIDP-UHFFFAOYSA-N 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 2
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 2
- 239000003431 cross linking reagent Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical compound C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- UKMSUNONTOPOIO-UHFFFAOYSA-N docosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCCCC(O)=O UKMSUNONTOPOIO-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 125000004185 ester group Chemical group 0.000 description 2
- 150000002170 ethers Chemical class 0.000 description 2
- IIEWJVIFRVWJOD-UHFFFAOYSA-N ethylcyclohexane Chemical compound CCC1CCCCC1 IIEWJVIFRVWJOD-UHFFFAOYSA-N 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 125000005843 halogen group Chemical group 0.000 description 2
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000005342 ion exchange Methods 0.000 description 2
- QWTDNUCVQCZILF-UHFFFAOYSA-N isopentane Chemical compound CCC(C)C QWTDNUCVQCZILF-UHFFFAOYSA-N 0.000 description 2
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 2
- ZBKFYXZXZJPWNQ-UHFFFAOYSA-N isothiocyanate group Chemical group [N-]=C=S ZBKFYXZXZJPWNQ-UHFFFAOYSA-N 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
- 229910052744 lithium Inorganic materials 0.000 description 2
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 2
- 239000001095 magnesium carbonate Substances 0.000 description 2
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 2
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 description 2
- 239000000113 methacrylic resin Substances 0.000 description 2
- UAEPNZWRGJTJPN-UHFFFAOYSA-N methylcyclohexane Chemical compound CC1CCCCC1 UAEPNZWRGJTJPN-UHFFFAOYSA-N 0.000 description 2
- GDOPTJXRTPNYNR-UHFFFAOYSA-N methylcyclopentane Chemical compound CC1CCCC1 GDOPTJXRTPNYNR-UHFFFAOYSA-N 0.000 description 2
- 239000002480 mineral oil Substances 0.000 description 2
- JAYXSROKFZAHRQ-UHFFFAOYSA-N n,n-bis(oxiran-2-ylmethyl)aniline Chemical compound C1OC1CN(C=1C=CC=CC=1)CC1CO1 JAYXSROKFZAHRQ-UHFFFAOYSA-N 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 125000002560 nitrile group Chemical group 0.000 description 2
- BDJRBEYXGGNYIS-UHFFFAOYSA-N nonanedioic acid Chemical compound OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 2
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 2
- 239000012188 paraffin wax Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- ODOPKAJVFRHHGM-UHFFFAOYSA-N phenyltin Chemical group [Sn]C1=CC=CC=C1 ODOPKAJVFRHHGM-UHFFFAOYSA-N 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 230000000379 polymerizing effect Effects 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 229920001955 polyphenylene ether Polymers 0.000 description 2
- 229920000069 polyphenylene sulfide Polymers 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 125000004076 pyridyl group Chemical group 0.000 description 2
- 125000002943 quinolinyl group Chemical group N1=C(C=CC2=CC=CC=C12)* 0.000 description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000008117 stearic acid Substances 0.000 description 2
- 229920001935 styrene-ethylene-butadiene-styrene Polymers 0.000 description 2
- 125000002130 sulfonic acid ester group Chemical group 0.000 description 2
- 125000000542 sulfonic acid group Chemical group 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 229920002725 thermoplastic elastomer Polymers 0.000 description 2
- 125000002813 thiocarbonyl group Chemical group *C(*)=S 0.000 description 2
- AWIJRPNMLHPLNC-UHFFFAOYSA-N thiocarboxylic acid group Chemical group C(=S)O AWIJRPNMLHPLNC-UHFFFAOYSA-N 0.000 description 2
- 125000005068 thioepoxy group Chemical group S(O*)* 0.000 description 2
- 125000000101 thioether group Chemical group 0.000 description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- VTHOKNTVYKTUPI-UHFFFAOYSA-N triethoxy-[3-(3-triethoxysilylpropyltetrasulfanyl)propyl]silane Chemical compound CCO[Si](OCC)(OCC)CCCSSSSCCC[Si](OCC)(OCC)OCC VTHOKNTVYKTUPI-UHFFFAOYSA-N 0.000 description 2
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Abstract
Description
本発明は、熱可塑性樹脂組成物に関し、更に詳しくは、層状粘土鉱物が層剥離し、微分散されたエラストマー/層状粘土鉱物/熱可塑性樹脂からなる熱可塑性樹脂組成物に関する。末端部に官能基原子団を付加した特異的な変性エラストマーと層状粘度鉱物を用いることにより得られる、剛性と耐衝撃性に優れる熱可塑性樹脂組成物に関する。 The present invention relates to a thermoplastic resin composition, and more particularly to a thermoplastic resin composition comprising an elastomer / layered clay mineral / thermoplastic resin in which a layered clay mineral is exfoliated and finely dispersed. The present invention relates to a thermoplastic resin composition having excellent rigidity and impact resistance, obtained by using a specific modified elastomer having a functional group added to the terminal portion and a layered viscosity mineral.
従来から、熱可塑性樹脂の機械強度、耐衝撃性等の諸特性を改良するために、種々のエラストマー及び無機充填剤を混合する試みが行われている。従来使用されている無機充填剤を使用した場合には、得られる熱可塑性樹脂組成物は、高比重化、流動性の低下、及びゴムとの界面強度の低下等の問題が発生し、更なる改良が必要である。近年、層状粘土鉱物を層剥離させ、アスペクト比が高いナノ層状鉱物を微分散させることにより少量の添加量でも、十分な改質効果を有する組成物が検討されている。上記層状粘土鉱物を使用する場合、層状粘土鉱物をナノオーダーにまで層剥離させることが技術上の課題であるが、層状粘土鉱物を単にスチレン系エラストマーのような無極性エラストマーと混合しただけでは、層状粘土鉱物の層剥離は起こらない。
層状粘土鉱物を微分散化させる方法として、例えば、特許文献1、2、3、4に層状粘土鉱物の無機イオンを有機アンモニウムイオンで置換した有機化クレー法、特許文献5にはオルガノホスホニウムカチオン改質クレー法等が提案されている。しかしながら、層状粘土鉱物を有機化処理し、ポリマーとの親和性を改良しただけでは、十分な改質効果は得られない。
Conventionally, attempts have been made to mix various elastomers and inorganic fillers in order to improve various properties such as mechanical strength and impact resistance of thermoplastic resins. When a conventionally used inorganic filler is used, the resulting thermoplastic resin composition has problems such as high specific gravity, lower fluidity, and lower interfacial strength with rubber. Improvement is needed. In recent years, a composition having a sufficient modification effect even by a small addition amount by delaminating a layered clay mineral and finely dispersing a nanolayered mineral having a high aspect ratio has been studied. When using the above lamellar clay mineral, it is a technical problem to delaminate the lamellar clay mineral to the nano-order, but simply by mixing the lamellar clay mineral with a nonpolar elastomer such as a styrene elastomer, No delamination of the layered clay mineral occurs.
As a method for finely dispersing the layered clay mineral, for example, Patent Documents 1, 2, 3, and 4 describe an organic clay method in which inorganic ions of the layered clay mineral are substituted with organic ammonium ions, and Patent Document 5 describes an organophosphonium cation modification. A quality clay method has been proposed. However, a sufficient modification effect cannot be obtained only by organically treating the layered clay mineral and improving the affinity with the polymer.
ポリマー側にも層状粘土鉱物との相互作用を高める為に、種々の改良が行われている。例えば、特許文献6にはポリマー主鎖に官能基を含有したポリマー、架橋剤及び有機化層状粘土鉱物、特許文献7にはポリマー主鎖にエポキシ基を有するゴムの使用、特許文献8には主鎖ポリマー中にハロゲン化したブチルゴムの使用、特許文献9には主鎖に無水マレイン酸をグラフト変性したポリマー、特許文献10、11、12、13には、主鎖に無水マレイン酸をグラフト変性したスチレン系エラストマーを用いる技術が開示されている。しかしながら、ポリマー主鎖に官能基を導入した場合、その官能基が主ポリマー主鎖の立体障害の為に層状粘土鉱物の層間に入り込めない為に、層状粘土鉱物の層剥離が不十分となる。又、ポリマー主鎖に官能基を導入した場合には、多量の官能基をポリマー主鎖に導入する必要があり、その結果、組成物の着色や熱安定性の低下、臭気、ゲル生成等の品質の問題が発生するし、そのような変性ポリマーを調整するためには、複雑な製造プロセスが必要となる。 Various improvements have also been made on the polymer side to enhance the interaction with the layered clay mineral. For example, Patent Document 6 uses a polymer containing a functional group in the polymer main chain, a cross-linking agent and an organic layered clay mineral, Patent Document 7 uses rubber having an epoxy group in the polymer main chain, and Patent Document 8 uses a main polymer. Use of halogenated butyl rubber in the chain polymer, Patent Document 9 grafted with maleic anhydride on the main chain, Patent Documents 10, 11, 12, and 13 grafted maleic anhydride on the main chain Techniques using styrenic elastomers are disclosed. However, when a functional group is introduced into the polymer main chain, delamination of the layered clay mineral becomes insufficient because the functional group cannot enter between layers of the layered clay mineral due to steric hindrance of the main polymer main chain. . In addition, when a functional group is introduced into the polymer main chain, it is necessary to introduce a large amount of functional group into the polymer main chain. As a result, coloring of the composition, deterioration of thermal stability, odor, gel formation, etc. Quality issues arise and complex manufacturing processes are required to tune such modified polymers.
本発明は、熱可塑性樹脂組成物に関し、更に詳細には、エラストマー/微分散された層状粘土鉱物/熱可塑性樹脂からなる熱可塑性樹脂組成物に関する。具体的には、重合体末端部に官能基含有原子団を有した変性エラストマーを用いることにより、剛性と耐衝撃性に優れた熱可塑性樹脂組成物を提供することにある。 The present invention relates to a thermoplastic resin composition, and more particularly to a thermoplastic resin composition composed of elastomer / finely dispersed layered clay mineral / thermoplastic resin. Specifically, an object of the present invention is to provide a thermoplastic resin composition having excellent rigidity and impact resistance by using a modified elastomer having a functional group-containing atomic group at the polymer terminal.
本発明者らは、共役ジエンからなる共役ジエン系重合体又はその水添物、共役ジエンとビニル芳香族炭化水素からなるランダム共重合体又はその水添物、共役ジエンとビニル芳香族炭化水素からなるブロック共重合体又はその水添物から選ばれる重合体の末端部に官能基含有原子団が少なくとも1個結合している変性エラストマーと層状粘度鉱物とを用いることにより、層状粘土鉱物が層剥離し、微分散化することを見出し、その熱可塑性樹脂組成物が、各種特性に優れた特性を有することを見出し、本発明を完成するに至った。
すなわち、本発明は下記の通りである。
(a)熱可塑性樹脂100重量部
(b)共役ジエンからなる共役ジエン系重合体又はその水添物、共役ジエンとビニル芳香族炭化水素からなるランダム共重合体又はその水添物、共役ジエンとビニル芳香族炭化水素からなるブロック共重合体又はその水添物から選ばれる重合体の末端部に、官能基含有原子団が少なくとも1個結合している変性エラストマー1〜100重量部
(c)層状粘土鉱物が、(b)100重量部あたり、1〜60重量部
(d)オレフィン系ゴム状重合体100重量部以下
(e)共役ジエンとビニル芳香族炭化水素からなるブロック共重合体又はその水添物から選ばれる少なくとも1種のエラストマー重合体100重量部以下
からなる熱可塑性樹脂組成物を提供するものである。
The present inventors include a conjugated diene polymer comprising a conjugated diene or a hydrogenated product thereof, a random copolymer comprising a conjugated diene and a vinyl aromatic hydrocarbon or a hydrogenated product thereof, and a conjugated diene and a vinyl aromatic hydrocarbon. The layered clay mineral is delaminated by using a modified elastomer in which at least one functional group-containing atomic group is bonded to a terminal portion of a polymer selected from a block copolymer or a hydrogenated product thereof and a layered viscosity mineral The inventors have found that the dispersion is finely dispersed, and that the thermoplastic resin composition has excellent properties in various properties, and has completed the present invention.
That is, the present invention is as follows.
(A) 100 parts by weight of thermoplastic resin (b) Conjugated diene polymer comprising conjugated diene or hydrogenated product thereof, random copolymer comprising conjugated diene and vinyl aromatic hydrocarbon or hydrogenated product thereof, conjugated diene 1 to 100 parts by weight of a modified elastomer in which at least one functional group-containing atomic group is bonded to a terminal part of a polymer selected from a block copolymer made of vinyl aromatic hydrocarbon or a hydrogenated product thereof (c) layered The clay mineral is (b) 1 to 60 parts by weight per 100 parts by weight (d) 100 parts by weight or less of an olefin-based rubbery polymer (e) a block copolymer consisting of a conjugated diene and a vinyl aromatic hydrocarbon or its water The present invention provides a thermoplastic resin composition comprising 100 parts by weight or less of at least one elastomer polymer selected from the additives.
本発明の熱可塑性樹脂組成物は、優れた機械物性、耐熱性、耐衝撃性等を有しており広範囲の材料として使用することができる。 The thermoplastic resin composition of the present invention has excellent mechanical properties, heat resistance, impact resistance and the like, and can be used as a wide range of materials.
以下、本発明について詳細に説明する。
本発明を構成する成分(a)熱可塑性樹脂は、スチレン系樹脂、オレフィン系樹脂、ポリカーボネート、ポリエチレンテレフタレート、ポリブチレンテレフタレート等のポリエステル、ポリフェニレンエーテル(PPE)、ポリフェニレンスルフィド(PPS)等の芳香族系樹脂、6.6ナイロン、6ナイロン等のポリアミド、メタクリル樹脂、アクリル樹脂、エチレン酢酸ビニル共重合体(EVA)等を挙げることができる。
スチレン系樹脂としては、ポリスチレン、ゴム強化ポリスチレン(ハイインパクトポリエステル)、共役ジエン化合物とビニル芳香族化合物とのブロック共重合樹脂及びその水素添加物、アクリロニトリル・スチレン共重合体(AS樹脂)、スチレン・メタクリル酸メチル共重合体(MS樹脂)等のスチレン・メタクリル酸エステル共重合体、アクリロニトリル・ブタジエン・スチレン三元共重合体(ABS樹脂)、ゴム強化MS樹脂、無水マレイン酸・スチレン共重合体、無水マレイン酸・アクリロニトリル・スチレン三元共重合体、アクリロニトリル・α−メチルスチレン共重合体、メタクリロニトリル・スチレン共重合体、メタクリル酸メチル・アクリロニトリル・スチレン三元共重合体等が挙げられる。
Hereinafter, the present invention will be described in detail.
Component (a) thermoplastic resin constituting the present invention is an aromatic resin such as styrene resin, olefin resin, polyester such as polycarbonate, polyethylene terephthalate, polybutylene terephthalate, polyphenylene ether (PPE), polyphenylene sulfide (PPS), etc. Examples thereof include resin, polyamide such as 6.6 nylon and 6 nylon, methacrylic resin, acrylic resin, and ethylene vinyl acetate copolymer (EVA).
Styrene resins include polystyrene, rubber reinforced polystyrene (high impact polyester), block copolymer resins of conjugated diene compounds and vinyl aromatic compounds and their hydrogenated products, acrylonitrile / styrene copolymers (AS resins), styrene / Styrene / methacrylic acid ester copolymer such as methyl methacrylate copolymer (MS resin), acrylonitrile / butadiene / styrene terpolymer (ABS resin), rubber reinforced MS resin, maleic anhydride / styrene copolymer, Examples thereof include maleic anhydride / acrylonitrile / styrene terpolymer, acrylonitrile / α-methylstyrene copolymer, methacrylonitrile / styrene copolymer, methyl methacrylate / acrylonitrile / styrene terpolymer.
オレフィン系樹脂としては、ポリエチレン(PE)、ポリプロピレン(PP)等のホモポリマー、及びブテン、ヘキセン、オクテン等とのブロック、ランダム共重合体、ポリメチルペンテン、ポリブテン−1、プロピレン・ブテン−1共重合体、塩素化ポリオレフィン、エチレン・メタクリル酸およびそのエステル共重合体、スチレン・アクリル酸およびそのエステル共重合体、エチレン・プロピレン共重合体(EPR)等を挙げることができる。メタクリル樹脂としては、ポリメチルメタクリレート(PMMA)、メタクリル酸メチル・メタクリル酸共重合体等を例示することができる。上記のうち、スチレン系樹脂、オレフィン系樹脂が好ましく、ポリオレフィン系樹脂が特に好ましい。 Examples of olefin resins include homopolymers such as polyethylene (PE) and polypropylene (PP), blocks with butene, hexene, octene, etc., random copolymers, polymethylpentene, polybutene-1, and propylene / butene-1. Examples thereof include polymers, chlorinated polyolefins, ethylene / methacrylic acid and ester copolymers thereof, styrene / acrylic acid and ester copolymers thereof, and ethylene / propylene copolymers (EPR). Examples of the methacrylic resin include polymethyl methacrylate (PMMA), methyl methacrylate / methacrylic acid copolymer, and the like. Of the above, styrene resins and olefin resins are preferable, and polyolefin resins are particularly preferable.
ポリオレフィン系樹脂としては例えばポリプロピレン系樹脂が挙げられる。ポリプロピレン系樹脂とはプロピレンを主体とし、必要に応じエチレン、炭素数4〜12のα−オレフィン、例えば、1−ブテン、1−オクテン、イソブチレン、4−メチル−1−ペンテン等から1種以上選ばれる単量体と重合して得られる樹脂であり、なかでも、プロピレンの単独重合体、プロピレンブロック共重合体、プロピレンランダム共重合体、またはこれらの混合物があげられ、分子量、組成の異なる物を混ぜたものでもよい。また、本発明に用いられるポリプロピレン系樹脂のメルトフローレート(JIS K7210 L条件)は、0.1〜200g/10分の範囲にあることが好ましい。 Examples of the polyolefin resin include polypropylene resin. The polypropylene-based resin is mainly composed of propylene, and if necessary, at least one selected from ethylene, an α-olefin having 4 to 12 carbon atoms, such as 1-butene, 1-octene, isobutylene, 4-methyl-1-pentene and the like. Resin obtained by polymerizing with a monomer, including propylene homopolymer, propylene block copolymer, propylene random copolymer, or a mixture thereof, and those having different molecular weights and compositions. It may be a mixture. Moreover, it is preferable that the melt flow rate (JIS K7210 L condition) of the polypropylene resin used for this invention exists in the range of 0.1-200 g / 10min.
本発明の熱可塑性樹脂組成物を構成する成分(b)は、特定の構造を有する重合体の末端部に、官能基含有原子団が少なくとも1個結合している変性エラストマーである。本発明で用いる「重合体の末端部」とは、直鎖状エラストマーの場合には、片末端又は両末端、分岐状エラストマーの場合には、分岐の各末端の全末端、又は少なくとも1つの末端部である。
本発明での第1のタイプの変性エラストマーとしては、共役ジエンからなる共役ジエン系重合体又はその水添物の重合体の末端部に、官能基含有原子団が少なくとも1個結合している変性エラストマーである。共役ジエン系重合体中のビニル結合含有量は特に限定されず、ビニル結合は重合体鎖中に均一に分布していても、テーパー状に分布していても、或いはビニル結合の異なる重合体ブロックが2個以上存在しても良い。本発明での「ビニル結合含有量」とは,重合体中に1,2−結合,3,4−結合及び1,4−結合の結合様式で組み込まれている共役ジエン化合物のうち,1,2−結合及び3,4−結合で組み込まれているものの割合である。
Component (b) constituting the thermoplastic resin composition of the present invention is a modified elastomer in which at least one functional group-containing atomic group is bonded to a terminal portion of a polymer having a specific structure. In the case of a linear elastomer, the “end portion of the polymer” used in the present invention is one end or both ends, and in the case of a branched elastomer, all ends of each end of the branch, or at least one end. Part.
As the first type of modified elastomer in the present invention, a modification in which at least one functional group-containing atomic group is bonded to a terminal portion of a conjugated diene polymer composed of a conjugated diene or a hydrogenated polymer thereof. It is an elastomer. The vinyl bond content in the conjugated diene polymer is not particularly limited, and the vinyl bonds may be uniformly distributed in the polymer chain, distributed in a tapered shape, or polymer blocks having different vinyl bonds. There may be two or more. In the present invention, the “vinyl bond content” is a conjugated diene compound that is incorporated in a polymer in a 1,2-bond, 3,4-bond, or 1,4-bond bond mode. It is the ratio of those incorporated by 2-bond and 3,4-bond.
本発明での第2のタイプの変性エラストマーとしては、共役ジエンとビニル芳香族炭化水素からなるランダム共重合体又はその水添物の重合体の末端部に官能基含有原子団が少なくとも1個結合している変性エラストマーである。該変性エラストマーにおいては、ビニル芳香族炭化水素含有量が5〜95wt%の範囲のものが好ましく、更に好ましくは10〜90wt%の範囲のものが好ましい。又、該変性エラストマー中のビニル結合量は特に限定されないが、一般に5〜90wt%、好ましくは10〜80wt%である。5wt%未満の場合には、水添物とした場合に、変性エラストマー内に結晶が発生し、エラストマーとしての性能が低下する傾向にあるし、90wt%を超える場合には、得られる熱可塑性樹脂組成物の熱安定性が低下する傾向にある。 As the second type of modified elastomer in the present invention, at least one functional group-containing atomic group is bonded to the end of a random copolymer composed of a conjugated diene and a vinyl aromatic hydrocarbon or a hydrogenated polymer thereof. Modified elastomer. The modified elastomer preferably has a vinyl aromatic hydrocarbon content of 5 to 95 wt%, more preferably 10 to 90 wt%. The amount of vinyl bonds in the modified elastomer is not particularly limited, but is generally 5 to 90 wt%, preferably 10 to 80 wt%. When it is less than 5 wt%, when it is used as a hydrogenated product, crystals are generated in the modified elastomer, and the performance as the elastomer tends to decrease. When it exceeds 90 wt%, the resulting thermoplastic resin The thermal stability of the composition tends to decrease.
本発明での第3のタイプの変性エラストマーとしては、共役ジエンとビニル芳香族炭化水素からなるブロック共重合体又はその水添物の末端部に官能基含有原子団が少なくと1個結合している変性ブロック共重合体である。該変性ブロック共重合体中のビニル芳香族炭化水素含有量は、好ましくは5〜90wt%、更に好ましくは7〜80wt%、最も好ましくは10〜75wt%である。変性ブロック共重合体中のビニル結合は特に限定されないが、一般に5〜90wt%、好ましくは7〜80wt%である。5%未満では水添物とした場合に、変性ブロック共重合体内に結晶が発生し、エラストマーとしての性能が低下する傾向にあるし、90wt%を超える場合には、組成物の熱安定性が低下する傾向にある。ブロック共重合体の製造方法としては、例えば特公昭36−19286号公報、特公昭43−17979号公報、特公昭46−32415号公報、特公昭49−36957号公報、特公昭48−2423号公報、特公昭48−4106号公報、特公昭56−28925号公報、特公昭51−49567号公報、特開昭59−166518号公報、特開昭60−186577号公報などに記載された方法が挙げられる。本発明で用いる変性ブロック共重合体は、例えば下記一般式で表されるような構造を有する。 As the third type of modified elastomer in the present invention, at least one functional group-containing atomic group is bonded to the terminal portion of the block copolymer composed of conjugated diene and vinyl aromatic hydrocarbon or hydrogenated product thereof. It is a modified block copolymer. The vinyl aromatic hydrocarbon content in the modified block copolymer is preferably 5 to 90 wt%, more preferably 7 to 80 wt%, and most preferably 10 to 75 wt%. The vinyl bond in the modified block copolymer is not particularly limited, but is generally 5 to 90 wt%, preferably 7 to 80 wt%. If it is less than 5%, when it is used as a hydrogenated product, crystals are generated in the modified block copolymer, and the performance as an elastomer tends to be reduced. If it exceeds 90 wt%, the thermal stability of the composition is low. It tends to decrease. Examples of the method for producing the block copolymer include Japanese Patent Publication No. 36-19286, Japanese Patent Publication No. 43-17879, Japanese Patent Publication No. 46-32415, Japanese Patent Publication No. 49-36957, Japanese Patent Publication No. 48-2423. And the methods described in JP-B-48-4106, JP-B-56-28925, JP-B-51-49567, JP-A-59-166518, JP-A-60-186777, and the like. It is done. The modified block copolymer used in the present invention has a structure represented by, for example, the following general formula.
(A−B)n−X、 A−(B−A)n−X、
B−(A−B)n−X、 X−(A−B)n、
X−(A−B)n−X、 X−A−(B−A)n−X、
X−B−(A−B)n−X、 [(B−A)n]m−X、
[(A−B)n]m−X、 [(B−A)n−B]m−X、
[(A−B)n−A]m−X
(AB) n -X, A- (BA) n -X,
B- (A-B) n -X, X- (A-B) n ,
X- (AB) n -X, XA- (BA) n -X,
X-B- (AB) n -X, [(BA) n ] m -X,
[(AB) n ] m- X, [(BA) n- B] m- X,
[(AB) n -A] m -X
(上式において、Aはビニル芳香族炭化水素を主体とする重合体ブロックであり、Bは共役ジエンを主体とする重合体である。AブロックとBブロックとの境界は必ずしも明瞭に区別される必要はない。又、nは1以上の整数、好ましくは1〜5の整数である。mは2以上の整数、好ましくは2〜11の整数である。Xは、後述する官能基を有する官能基原子団を示す。Xに結合しているポリマー鎖の構造は同一でも、異なっていても良い。)
尚、上記において、ビニル芳香族炭化水素を主体とする重合体ブロックAはビニル芳香族炭化水素を好ましくは50wt%以上、より好ましくは70wt%以上含有するビニル芳香族炭化水素と共役ジエンとの共重合体ブロック及び/又はビニル芳香族炭化水素単独重合体ブロックを示し、共役ジエンを主体とする重合体ブロックBは共役ジエンを好ましくは50wt%を超える量で、より好ましくは60wt%以上含有する共役ジエンとビニル芳香族炭化水素との共重合体ブロック及び/又は共役ジエン単独重合体ブロックを示す。共重合体ブロック中のビニル芳香族炭化水素は均一に分布していても、又テーパー状に分布していてもよい。又、該変性ブロック共重合体部分には、ビニル芳香族炭化水素が均一に分布している部分及び/又はテーパー状に分布している部分がそれぞれ複数個共存していてもよい。本発明で使用する変性ブロック共重合体は、上記一般式で表されるブロック共重合体の任意の混合物でもよい。
(In the above formula, A is a polymer block mainly composed of vinyl aromatic hydrocarbons, and B is a polymer mainly composed of conjugated dienes. The boundary between the A block and the B block is always clearly distinguished. N is an integer of 1 or more, preferably an integer of 1 to 5. m is an integer of 2 or more, preferably an integer of 2 to 11. X is a functional group having a functional group described later. (Indicates a basic atomic group. The structure of the polymer chain bonded to X may be the same or different.)
In the above, the polymer block A mainly composed of vinyl aromatic hydrocarbons preferably contains 50% by weight or more, more preferably 70% by weight or more of vinyl aromatic hydrocarbons and conjugated dienes. A polymer block and / or a vinyl aromatic hydrocarbon homopolymer block, the polymer block B mainly comprising a conjugated diene is preferably a conjugated diene containing more than 50 wt%, more preferably 60 wt% or more. A copolymer block of a diene and a vinyl aromatic hydrocarbon and / or a conjugated diene homopolymer block are shown. The vinyl aromatic hydrocarbons in the copolymer block may be uniformly distributed or tapered. In addition, the modified block copolymer portion may coexist with a plurality of portions where vinyl aromatic hydrocarbons are uniformly distributed and / or portions where tapes are distributed. The modified block copolymer used in the present invention may be an arbitrary mixture of block copolymers represented by the above general formula.
特に、本発明で用いる変性ブロック共重合体としては、スチレンブロック−共役ブタジエンブロック−スチレンブロックからなるSBSタイプ、又は該SBSタイプの共役ジエンブロック部を部分水添したSBBS、又は完全水添したSEBSタイプの変性ブロック共重合体が、各種物性バランスの面で好ましい。
特に、スチレンを主体としたブロック部の末端部に官能基含有原子団が結合した変性ブロック共重合体は、層状粘土鉱物との相互作用が高いスチレンを主体とするブロック部を有しており、且つそのブロック部の末端部に官能基含有原子団が結合している為、層状粘土鉱物の層間に変性ブロック共重合体の末端部位が挿入しやすくなっており、層状粘土鉱物の層剥離が促進される。このような変性ブロック共重合体と層状粘土鉱物とのエラストマー組成物は、スチレンを主体とする相と、共役ジエン又はその水添物からなる相がミクロ相分離しており、且つ剥離した層状粘土鉱物がミクロ相程度の厚み程度まで層剥離をし、スチレンを主体とする相とナノ層状粘土鉱物が相互作用しているハイブリットなエラストマー組成物であり、熱可塑性樹脂との組成物において極めて優れる機械的強度と耐衝撃性のバランスを発現する。
In particular, the modified block copolymer used in the present invention includes an SBS type composed of styrene block-conjugated butadiene block-styrene block, SBBS obtained by partially hydrogenating the conjugated diene block portion of the SBS type, or fully hydrogenated SEBS. The type of modified block copolymer is preferable in terms of balance of various physical properties.
In particular, a modified block copolymer in which a functional group-containing atomic group is bonded to a terminal portion of a block portion mainly composed of styrene has a block portion mainly composed of styrene having a high interaction with the layered clay mineral, And since the functional group-containing atomic group is bonded to the end of the block part, the end part of the modified block copolymer is easily inserted between the layers of the layered clay mineral, facilitating delamination of the layered clay mineral. Is done. Such an elastomer composition of a modified block copolymer and a layered clay mineral has a layered clay in which a phase mainly composed of styrene and a phase composed of a conjugated diene or a hydrogenated product thereof are microphase-separated and exfoliated. It is a hybrid elastomer composition in which the mineral is peeled to a thickness of about the microphase and the styrene-based phase interacts with the nano-layered clay mineral, and is an extremely excellent machine for compositions with thermoplastic resins. Balance of mechanical strength and impact resistance.
本発明においての共役ジエンとは、一対の共役二重結合を有するジオレフィンであり、例えば1,3−ブタジエン、2−メチル−1,3−ブタジエン(イソプレン)、2,3−ジメチル−1,3−ブタジエン、1,3−ペンタジエン、1,3−ヘキサジエンなどであるが、特に一般的なものとしては1,3−ブタジエン、イソプレンが挙げられる。これらは重合体の製造において一種のみならず二種以上を使用してもよい。 又、ビニル芳香族炭化水素としては、スチレン、o−メチルスチレン、p−メチルスチレン、p−tert−ブチルスチレン、1,3−ジメチルスチレン、α−メチルスチレン、ビニルナフタレン、ビニルアントラセン、などがあるが、特に一般的なものとしてはスチレンが挙げられる。これらは重合体の製造において一種のみならず二種以上を使用してもよい。 The conjugated diene in the present invention is a diolefin having a pair of conjugated double bonds, such as 1,3-butadiene, 2-methyl-1,3-butadiene (isoprene), 2,3-dimethyl-1, Examples of 3-butadiene, 1,3-pentadiene, and 1,3-hexadiene are 1,3-butadiene and isoprene. These may be used alone or in combination of two or more in the production of the polymer. Examples of vinyl aromatic hydrocarbons include styrene, o-methylstyrene, p-methylstyrene, p-tert-butylstyrene, 1,3-dimethylstyrene, α-methylstyrene, vinylnaphthalene, and vinylanthracene. However, styrene is a particularly common one. These may be used alone or in combination of two or more in the production of the polymer.
本発明で用いる変性エラストマーは、重合体の末端部に官能基含有原子団が少なくとも1個結合した変性エラストマーである。具体的には、重合体の末端部に水酸基、カルボキシル基、カルボニル基、チオカルボニル基、酸ハロゲン化物基、酸無水物基、カルボン酸基、チオカルボン酸基、アルデヒド基、チオアルデヒド基、カルボン酸エステル基、アミド基、スルホン酸基、スルホン酸エステル基、リン酸基、リン酸エステル基、アミノ基、イミノ基、ニトリル基、ピリジル基、キノリン基、エポキシ基、チオエポキシ基、スルフィド基、イソシアネート基、イソチオシアネート基、シラノール基、アルコキシシラン基、ハロゲン化ケイ素基、ハロゲン化スズ基、アルコキシスズ基、フェニルスズ基等から選ばれる官能基を少なくとも1個有する官能基原子団が結合している変性エラストマーであり、特に、アミノ基、イミノ基、水酸基、カルボキシル基、酸無水物基、エポキシ基、シラノール基、アルコキシシラン基が、層状粘土鉱物との親和性の面で好ましい。 The modified elastomer used in the present invention is a modified elastomer in which at least one functional group-containing atomic group is bonded to the terminal portion of the polymer. Specifically, a hydroxyl group, a carboxyl group, a carbonyl group, a thiocarbonyl group, an acid halide group, an acid anhydride group, a carboxylic acid group, a thiocarboxylic acid group, an aldehyde group, a thioaldehyde group, a carboxylic acid at the end of the polymer Ester group, amide group, sulfonic acid group, sulfonic acid ester group, phosphoric acid group, phosphoric ester group, amino group, imino group, nitrile group, pyridyl group, quinoline group, epoxy group, thioepoxy group, sulfide group, isocyanate group Modified elastomer having bonded thereto a functional group having at least one functional group selected from an isothiocyanate group, a silanol group, an alkoxysilane group, a halogenated silicon group, a halogenated tin group, an alkoxytin group, a phenyltin group, etc. In particular, amino groups, imino groups, hydroxyl groups, carboxyl groups, acid anhydrides , Epoxy group, silanol group, alkoxysilane group, preferred from the viewpoint of affinity with the layered clay mineral.
次に本発明での成分(b)である変性エラストマーの製法について述べる。
本発明での、変性エラストマーの重合に用いられる溶媒としては、ブタン、ペンタン、ヘキサン、イソペンタン、ヘプタン、オクタン、イソオクタン等の脂肪族炭化水素、シクロペンタン、メチルシクロペンタン、シクロヘキサン、メチルシクロヘキサン、エチルシクロヘキサン等の脂環式炭化水素、或いはベンゼン、トルエン、エチルベンゼン、キシレン等の芳香族炭化水素などの炭化水素系溶媒が使用できる。これらは一種のみならず二種以上を混合して使用してもよい。
Next, a method for producing the modified elastomer which is the component (b) in the present invention will be described.
Solvents used for the polymerization of the modified elastomer in the present invention include aliphatic hydrocarbons such as butane, pentane, hexane, isopentane, heptane, octane, isooctane, cyclopentane, methylcyclopentane, cyclohexane, methylcyclohexane, and ethylcyclohexane. Hydrocarbon solvents such as alicyclic hydrocarbons such as aromatic hydrocarbons such as benzene, toluene, ethylbenzene, and xylene can be used. These may be used alone or in combination of two or more.
変性エラストマーの重合に用いられる触媒としては、有機リチウム化合物が好ましい。有機リチウム化合物は、本発明での共役ジエン、ビニル芳香族炭化水素をモノマーとした場合、重合体の末端部がリビング性を有しており、本発明の特徴である末端部への官能基含有原子団の結合が容易に生成される。該有機リチウム化合物とは、分子中に1個以上のリチウム原子を結合した化合物であり、例えばエチルリチウム、n−プロピルリチウム、イソプロピルリチウム、n−ブチルリチウム、sec−ブチルリチウム、tert−ブチルリチウム、ヘキサメチレンジリチウム、ブタジエニルジリチウム、イソプレニルジリチウム、アミドリチウムなどが挙げられる。これらは一種のみならず二種以上を混合して使用してもよい。又、有機リチウム化合物は、変性エラストマーの重合において重合途中で1回以上分割添加してもよい。 As a catalyst used for polymerization of the modified elastomer, an organolithium compound is preferable. When the organolithium compound is a conjugated diene or vinyl aromatic hydrocarbon in the present invention as a monomer, the terminal portion of the polymer has a living property, and the functional group is contained in the terminal portion, which is a feature of the present invention. Bonds of atomic groups are easily generated. The organolithium compound is a compound in which one or more lithium atoms are bonded in the molecule, such as ethyl lithium, n-propyl lithium, isopropyl lithium, n-butyl lithium, sec-butyl lithium, tert-butyl lithium, Hexamethylene dilithium, butadienyl dilithium, isoprenyl dilithium, amido lithium and the like can be mentioned. These may be used alone or in combination of two or more. The organolithium compound may be added in one or more divided portions during the polymerization of the modified elastomer.
本発明で用いる変性エラストマーの重合時において、重合体の製造時の重合速度の調整、重合した共役ジエン部分のミクロ構造の変更、共役ジエンとビニル芳香族炭化水素との反応性比の調整などの目的で極性化合物やランダム化剤を使用することができる。極性化合物やランダム化剤としては、エーテル類、アミン類、チオエーテル類、ホスホルアミド、アルキルベンゼンスルホン酸のカリウム塩又はナトリウム塩、カリウムまたはナトリウムのアルコキシドなどが挙げられる。
適当なエーテル類の例はジメチルエーテル、ジエチルエーテル、ジフェニルエーテル、テトラヒドロフラン、ジエチレングリコールジメチルエーテル、ジエチレングリコールジブチルエーテルである。アミン類としては第三級アミン、トリメチルアミン、トリエチルアミン、テトラメチルエチレンジアミン、その他環状第三級アミンなども使用できる。ホスフィン及びホスホルアミドとしては、トリフェニルホスフィン、ヘキサメチルホスホルアミドなどがあり、特に、テトラヒドロフラン、テトラメチルエチレンジアミンが、製造プロセスでの精製工程上好ましい。
During polymerization of the modified elastomer used in the present invention, adjustment of the polymerization rate during production of the polymer, change of the microstructure of the polymerized conjugated diene moiety, adjustment of the reactivity ratio of the conjugated diene and the vinyl aromatic hydrocarbon, etc. Polar compounds and randomizing agents can be used for the purpose. Examples of polar compounds and randomizing agents include ethers, amines, thioethers, phosphoramides, potassium or sodium salts of alkylbenzene sulfonic acids, potassium or sodium alkoxides, and the like.
Examples of suitable ethers are dimethyl ether, diethyl ether, diphenyl ether, tetrahydrofuran, diethylene glycol dimethyl ether, diethylene glycol dibutyl ether. As amines, tertiary amine, trimethylamine, triethylamine, tetramethylethylenediamine, and other cyclic tertiary amines can be used. Examples of the phosphine and phosphoramide include triphenylphosphine and hexamethylphosphoramide, and tetrahydrofuran and tetramethylethylenediamine are particularly preferred in the purification process in the production process.
本発明において、変性エラストマーを製造する際の重合温度は、好ましくは−10〜150℃、より好ましくは30〜120℃である。重合に要する時間は条件によって異なるが、好ましくは48時間以内であり、特に好適には0.5〜10時間である。又、重合系の雰囲気は窒素ガスなどの不活性ガス雰囲気にすることが好ましい。重合圧力は、上記重合温度範囲でモノマー及び溶媒を液相に維持するに充分な圧力の範囲で行えばよく、特に限定されるものではない。更に、重合系内は触媒及びリビングポリマーを不活性化させるような不純物、例えば水、酸素、炭酸ガスなどが混入しないようにすることが好ましい。 In the present invention, the polymerization temperature for producing the modified elastomer is preferably −10 to 150 ° C., more preferably 30 to 120 ° C. The time required for the polymerization varies depending on the conditions, but is preferably within 48 hours, particularly preferably 0.5 to 10 hours. The polymerization atmosphere is preferably an inert gas atmosphere such as nitrogen gas. The polymerization pressure is not particularly limited as long as the polymerization pressure is in a range sufficient to maintain the monomer and solvent in a liquid phase within the above polymerization temperature range. Furthermore, it is preferable that impurities such as water, oxygen, carbon dioxide gas, etc. that inactivate the catalyst and living polymer are not mixed in the polymerization system.
本発明で用いる変性エラストマーは、例えば、有機リチウム化合物を重合触媒として得た重合体のリビング末端に、水酸基、カルボキシル基、カルボニル基、チオカルボニル基、酸ハロゲン化物基、酸無水物基、カルボン酸基、チオカルボン酸基、アルデヒド基、チオアルデヒド基、カルボン酸エステル基、アミド基、スルホン酸基、スルホン酸エステル基、リン酸基、リン酸エステル基、アミノ基、ニトリル基、ピリジル基、キノリン基、エポキシ基、チオエポキシ基、スルフィド基、イソシアネート基、イソチオシアネート基、シラノール基、アルコキシシラン基、ハロゲン化ケイ素基、ハロゲン化スズ基、アルコキシスズ基、フェニルスズ基等から選ばれる官能基、及び/又はそれらの誘導体を少なくとも1個有する原子団が結合している官能基含有変性剤を付加させて得られる。該方法により得られた変性エラストマーを、本発明では1次変性エラストマーとする。 The modified elastomer used in the present invention includes, for example, a hydroxyl group, a carboxyl group, a carbonyl group, a thiocarbonyl group, an acid halide group, an acid anhydride group, a carboxylic acid at the living terminal of a polymer obtained using an organolithium compound as a polymerization catalyst. Group, thiocarboxylic acid group, aldehyde group, thioaldehyde group, carboxylic acid ester group, amide group, sulfonic acid group, sulfonic acid ester group, phosphoric acid group, phosphoric acid ester group, amino group, nitrile group, pyridyl group, quinoline group A functional group selected from an epoxy group, a thioepoxy group, a sulfide group, an isocyanate group, an isothiocyanate group, a silanol group, an alkoxysilane group, a halogenated silicon group, a halogenated tin group, an alkoxytin group, a phenyltin group, and / or the like. An atomic group having at least one of these derivatives That by adding a functional group-containing modifier obtained. In the present invention, the modified elastomer obtained by this method is defined as a primary modified elastomer.
尚、本発明において用いる変性エラストマー中には、重合体のリビング末端に上記官能基変性剤を反応させる際に、一部変性されていない未変性エラストマー重合体が混在しても良く、未変性のエラストマーの割合は、好ましくは60wt%以下、より好ましくは50t%以下であることが推奨される。本発明においての1次変性エラストマー製法において用いる官能基含有変性剤としては、アミノ基、イミノ基、水酸基、カルボキシル基、酸無水物基、エポキシ基、シラノール基、アルコキシシラン基、及び/又はそれらの誘導体である変性剤を用いることが特に好ましい。
本発明で用いる1次変性エラストマーを得るために使用される変性剤としては、下記のものが挙げられる。 例えば、テトラグリシジルメタキシレンジアミン、テトラグリシジル−1,3−ビスアミノメチルシクロヘキサン、テトラグリシジル−p−フェニレンジアミン、テトラグリシジルジアミノジフェニルメタン、ジグリシジルアニリン、ジグリシジルオルソトルイジン、4,4’−ジグリシジルージフェニルメチルアミン、4,4’−ジグリシジルージベンジルメチルアミン、ジグリシジルアミノメチルシクロヘキサン等のポリエポキシ化合物である。
In the modified elastomer used in the present invention, when the functional group modifier is reacted with the living terminal of the polymer, an unmodified elastomer polymer that is not partially modified may be mixed. It is recommended that the proportion of elastomer is preferably 60 wt% or less, more preferably 50 t% or less. Examples of the functional group-containing modifier used in the method for producing a primary modified elastomer in the present invention include amino group, imino group, hydroxyl group, carboxyl group, acid anhydride group, epoxy group, silanol group, alkoxysilane group, and / or their It is particularly preferable to use a modifying agent that is a derivative.
The following are mentioned as a modifier used in order to obtain the primary modified elastomer used by this invention. For example, tetraglycidyl metaxylenediamine, tetraglycidyl-1,3-bisaminomethylcyclohexane, tetraglycidyl-p-phenylenediamine, tetraglycidyldiaminodiphenylmethane, diglycidylaniline, diglycidylorthotoluidine, 4,4'-diglycidyl Polyepoxy compounds such as diphenylmethylamine, 4,4′-diglycidyldibenzylmethylamine, and diglycidylaminomethylcyclohexane.
また、γ−グリシドキシエチルトリメトキシシラン、γ−グリシドキシプロピルトリメトキシシラン、γ−グリシドキシブチルトリメトキシシラン、γ−グリシドキシプロピルトリエトキシシラン、γ−グリシドキシプロピルトリプロポキシシラン、γ−グリシドキシプロピルトリブトキシシラン、γ−グリシドキシプロピルトリフェノキシシラン、γ−グリシドキシプロピルメチルジメトキシシラン、γ−グリシドキシプロピルエチルジメトキシシラン、γ−グリシドキシプロピルエチルジエトキシシラン、γ−グリシドキシプロピルメチルジエトキシシラン、γ−グリシドキシプロピルメチルジプロポキシシラン、γ−グリシドキシプロピルメチルジブトキシシラン、γ−グリシドキシプロピルメチルジフェノキシシラン、γ−グリシドキシプロピルジメチルメトキシシラン、γ−グリシドキシプロピルジエチルエトキシシラン、γ−グリシドキシプロピルジメチルエトキシシラン、γ−グリシドキシプロピルジメチルフェノキシシラン、γ−グリシドキシプロピルジエチルメトキシシラン、γ−グリシドキシプロピルメチルジイソプロペンオキシシラン、ビス(γ−グリシドキシプロピル)ジメトキシシラン、ビス(γ−グリシドキシプロピル)ジエトキシシランである。 Also, γ-glycidoxyethyltrimethoxysilane, γ-glycidoxypropyltrimethoxysilane, γ-glycidoxybutyltrimethoxysilane, γ-glycidoxypropyltriethoxysilane, γ-glycidoxypropyltripropoxy Silane, γ-glycidoxypropyl tributoxysilane, γ-glycidoxypropyltriphenoxysilane, γ-glycidoxypropylmethyldimethoxysilane, γ-glycidoxypropylethyldimethoxysilane, γ-glycidoxypropylethyldi Ethoxysilane, γ-glycidoxypropylmethyldiethoxysilane, γ-glycidoxypropylmethyldipropoxysilane, γ-glycidoxypropylmethyldibutoxysilane, γ-glycidoxypropylmethyldiphenoxysilane, γ-glycine Sidoxypropi Dimethylmethoxysilane, γ-glycidoxypropyldiethylethoxysilane, γ-glycidoxypropyldimethylethoxysilane, γ-glycidoxypropyldimethylphenoxysilane, γ-glycidoxypropyldiethylmethoxysilane, γ-glycidoxypropyl Methyldiisopropeneoxysilane, bis (γ-glycidoxypropyl) dimethoxysilane, and bis (γ-glycidoxypropyl) diethoxysilane.
さらにまた、ビス(γ−グリシドキシプロピル)ジプロポキシシラン、ビス(γ−グリシドキシプロピル)ジブトキシシラン、ビス(γ−グリシドキシプロピル)ジフェノキシシラン、ビス(γ−グリシドキシプロピル)メチルメトキシシラン、ビス(γ−グリシドキシプロピル)メチルエトキシシラン、ビス(γ−グリシドキシプロピル)メチルプロポキシシラン、ビス(γ−グリシドキシプロピル)メチルブトキシシラン、ビス(γ−グリシドキシプロピル)メチルフェノキシシラン、トリス(γ−グリシドキシプロピル)メトキシシラン、γ−メタクリロキシプロピルトリメトキシシラン、γ−メタクリロキシプロピルトリエトキシシラン、γ−メタクリロキシメチルトリメトキシシラン、γ−メタクリロキシエチルトリエトキシシラン、ビス(γ−メタクリロキシプロピル)ジメトキシシラン、トリス(γ−メタクリロキシプロピル)メトキシシランである。 Furthermore, bis (γ-glycidoxypropyl) dipropoxysilane, bis (γ-glycidoxypropyl) dibutoxysilane, bis (γ-glycidoxypropyl) diphenoxysilane, bis (γ-glycidoxypropyl) ) Methylmethoxysilane, bis (γ-glycidoxypropyl) methylethoxysilane, bis (γ-glycidoxypropyl) methylpropoxysilane, bis (γ-glycidoxypropyl) methylbutoxysilane, bis (γ-glycid) Xylpropyl) methylphenoxysilane, tris (γ-glycidoxypropyl) methoxysilane, γ-methacryloxypropyltrimethoxysilane, γ-methacryloxypropyltriethoxysilane, γ-methacryloxymethyltrimethoxysilane, γ-methacryloxy Ethyltriethoxysilane, bis .gamma.-methacryloxypropyl) dimethoxysilane, tris (.gamma.-methacryloxypropyl) methoxy silane.
さらに、β−(3,4−エポキシシクロヘキシル)エチル−トリメトキシシラン、β−(3,4−エポキシシクロヘキシル)エチル−トリエトキシシラン、β−(3,4−エポキシシクロヘキシル)エチル−トリプロポキシシラン、β−(3,4−エポキシシクロヘキシル)エチル−トリブトキシシラン、β−(3,4−エポキシシクロヘキシル)エチル−トリフェノキシシランである。 Furthermore, β- (3,4-epoxycyclohexyl) ethyl-trimethoxysilane, β- (3,4-epoxycyclohexyl) ethyl-triethoxysilane, β- (3,4-epoxycyclohexyl) ethyl-tripropoxysilane, β- (3,4-epoxycyclohexyl) ethyl-tributoxysilane, β- (3,4-epoxycyclohexyl) ethyl-triphenoxysilane.
さらに、β−(3,4−エポキシシクロヘキシル)プロピル−トリメトキシシラン、β−(3,4−エポキシシクロヘキシル)エチル−メチルジメトキシシラン、β−(3,4−エポキシシクロヘキシル)エチル−エチルジメトキシシラン、β−(3,4−エポキシシクロヘキシル)エチル−エチルジエトキシシラン、β−(3,4−エポキシシクロヘキシル)エチル−メチルジエトキシシラン、β−(3,4−エポキシシクロヘキシル)エチル−メチルジプロポキシシラン、β−(3,4−エポキシシクロヘキシル)エチル−メチルジブトキシシラン、β−(3,4−エポキシシクロヘキシル)エチル−メチルジフェノキシシラン、β−(3,4−エポキシシクロヘキシル)エチル−ジメチルメトキシシラン、β−(3,4−エポキシシクロヘキシル)エチル−ジエチルエトキシシラン、β−(3,4−エポキシシクロヘキシル)エチル−ジメチルエトキシシラン、β−(3,4−エポキシシクロヘキシル)エチル−ジメチルプロポキシシラン、β−(3,4−エポキシシクロヘキシル)エチル−ジメチルブトキシシラン、β−(3,4−エポキシシクロヘキシル)エチル−ジメチルフェノキシシランである。 Furthermore, β- (3,4-epoxycyclohexyl) propyl-trimethoxysilane, β- (3,4-epoxycyclohexyl) ethyl-methyldimethoxysilane, β- (3,4-epoxycyclohexyl) ethyl-ethyldimethoxysilane, β- (3,4-epoxycyclohexyl) ethyl-ethyldiethoxysilane, β- (3,4-epoxycyclohexyl) ethyl-methyldiethoxysilane, β- (3,4-epoxycyclohexyl) ethyl-methyldipropoxysilane , Β- (3,4-epoxycyclohexyl) ethyl-methyldibutoxysilane, β- (3,4-epoxycyclohexyl) ethyl-methyldiphenoxysilane, β- (3,4-epoxycyclohexyl) ethyl-dimethylmethoxysilane , Β- (3,4-epoxycyclohex E) Ethyl-diethylethoxysilane, β- (3,4-epoxycyclohexyl) ethyl-dimethylethoxysilane, β- (3,4-epoxycyclohexyl) ethyl-dimethylpropoxysilane, β- (3,4-epoxycyclohexyl) Ethyl-dimethylbutoxysilane, β- (3,4-epoxycyclohexyl) ethyl-dimethylphenoxysilane.
さらに、β−(3,4−エポキシシクロヘキシル)エチル−ジエチルメトキシシラン、β−(3,4−エポキシシクロヘキシル)エチル−メチルジイソプロペンオキシシラン、N−(1、3−ジメチルブチリデン)−3−(トリエトキシシリル)−1−プロパンアミンである。さらに、1,3−ジメチル−2−イミダゾリジノン、1,3−ジエチル−2−イミダゾリジノン、N,N’−ジメチルプロピレンウレア、1,3−ジエチル−2−イミダゾリジノン、1,3−ジプロピル−2−イミダゾリジノン、1−メチル−3−エチル−2−イミダゾリジノン、1−メチル−3−プロピル−2−イミダゾリジノン、1−メチル−3−ブチル−2−イミダゾリジノン、1−メチル−3−(2−メトキシエチル)−2−イミダゾリジノン、1−メチル−3−(2−エトキシエチル)−2−イミダゾリジノン、1,3−ジ−(2−エトキシエチル)−2−イミダゾリジノン、1,3−ジメチルエチレンチオウレア、N,N’−ジエチルプロピレンウレア、N−メチル−N’−エチルプロピレンウレア等が挙げられる。また、1−メチル−2−ピロリドン、1−シクロヘキシル−2−ピロリドン、1−エチル−2−ピロリドン、1−プロピル−2−ピロリドン、1−ブチル−2−ピロリドン、1−イソプロピル−2−ピロリドン、1,5−ジメチル−2−ピロリドン、1−メトキシメチル−2−ピロリドン、1−メチル−2−ピペリドン、1,4−ジメチル−2−ピペリドン、1−エチル−2−ピペリドン、1−イソプロピル−2−ピペリドン、1−イソプロピル−5,5−ジメチル−2−ピペリドン等が挙げられる。 Further, β- (3,4-epoxycyclohexyl) ethyl-diethylmethoxysilane, β- (3,4-epoxycyclohexyl) ethyl-methyldiisopropeneoxysilane, N- (1,3-dimethylbutylidene) -3 -(Triethoxysilyl) -1-propanamine. Furthermore, 1,3-dimethyl-2-imidazolidinone, 1,3-diethyl-2-imidazolidinone, N, N′-dimethylpropyleneurea, 1,3-diethyl-2-imidazolidinone, 1,3 -Dipropyl-2-imidazolidinone, 1-methyl-3-ethyl-2-imidazolidinone, 1-methyl-3-propyl-2-imidazolidinone, 1-methyl-3-butyl-2-imidazolidinone 1-methyl-3- (2-methoxyethyl) -2-imidazolidinone, 1-methyl-3- (2-ethoxyethyl) -2-imidazolidinone, 1,3-di- (2-ethoxyethyl) ) -2-imidazolidinone, 1,3-dimethylethylenethiourea, N, N′-diethylpropyleneurea, N-methyl-N′-ethylpropyleneurea and the like. 1-methyl-2-pyrrolidone, 1-cyclohexyl-2-pyrrolidone, 1-ethyl-2-pyrrolidone, 1-propyl-2-pyrrolidone, 1-butyl-2-pyrrolidone, 1-isopropyl-2-pyrrolidone, 1,5-dimethyl-2-pyrrolidone, 1-methoxymethyl-2-pyrrolidone, 1-methyl-2-piperidone, 1,4-dimethyl-2-piperidone, 1-ethyl-2-piperidone, 1-isopropyl-2 -Piperidone, 1-isopropyl-5,5-dimethyl-2-piperidone and the like.
本発明において、1次変性エラストマーの水添物は、上記で得られた1次変性エラストマーを水素添加することにより得られる。水添触媒としては、特に制限されず、従来から公知である(1)Ni、Pt、Pd、Ru等の金属をカーボン、シリカ、アルミナ、ケイソウ土等に担持させた担持型不均一系水添触媒、(2)Ni、Co、Fe、Cr等の有機酸塩又はアセチルアセトン塩などの遷移金属塩と有機アルミニウム等の還元剤とを用いる、いわゆるチーグラー型水添触媒、(3)Ti、Ru、Rh、Zr等の有機金属化合物等のいわゆる有機金属錯体等の均一系水添触媒が用いられる。
具体的な水添触媒としては、特公昭42−8704号公報、特公昭43−6636号公報、特公昭63−4841号公報、特公平1−37970号公報、特公平1−53851号公報、特公平2−9041号公報に記載された水添触媒を使用することができる。好ましい水添触媒としてはチタノセン化合物および/または還元性有機金属化合物との混合物があげられる。
In the present invention, the hydrogenated product of the primary modified elastomer can be obtained by hydrogenating the primary modified elastomer obtained above. The hydrogenation catalyst is not particularly limited and is conventionally known (1) A supported heterogeneous hydrogenation in which a metal such as Ni, Pt, Pd, or Ru is supported on carbon, silica, alumina, diatomaceous earth, or the like. A catalyst, (2) a so-called Ziegler-type hydrogenation catalyst using an organic acid salt such as Ni, Co, Fe, Cr or a transition metal salt such as acetylacetone salt and a reducing agent such as organic aluminum, (3) Ti, Ru, A homogeneous hydrogenation catalyst such as a so-called organometallic complex such as an organometallic compound such as Rh or Zr is used.
Specific examples of the hydrogenation catalyst include Japanese Patent Publication No. 42-8704, Japanese Patent Publication No. 43-6636, Japanese Patent Publication No. 63-4841, Japanese Patent Publication No. 1-337970, Japanese Patent Publication No. 1-53851, The hydrogenation catalyst described in Japanese Utility Model Publication No. 2-9041 can be used. A preferred hydrogenation catalyst is a mixture with a titanocene compound and / or a reducing organometallic compound.
チタノセン化合物としては、特開平8−109219号公報に記載された化合物が使用できるが、具体例としては、ビスシクロペンタジエニルチタンジクロライド、モノペンタメチルシクロペンタジエニルチタントリクロライド等の(置換)シクロペンタジエニル骨格、インデニル骨格あるいはフルオレニル骨格を有する配位子を少なくとも1つ以上もつ化合物があげられる。また、還元性有機金属化合物としては、有機リチウム等の有機アルカリ金属化合物、有機マグネシウム化合物、有機アルミニウム化合物、有機ホウ素化合物あるいは有機亜鉛化合物等があげられる。
水添反応は好ましくは0〜200℃、より好ましくは30〜150℃の温度範囲で実施される。水添反応に使用される水素の圧力は、好ましくは0.1〜15MPa、より好ましくは0.2〜10MPa、更に好ましくは0.3〜5MPaが推奨される。また、水添反応時間は好ましくは3分〜10時間、より好ましくは10分〜5時間である。水添反応は、バッチプロセス、連続プロセス、或いはそれらの組み合わせのいずれでも用いることができる。
As the titanocene compound, compounds described in JP-A-8-109219 can be used. Specific examples thereof include (substitution) such as biscyclopentadienyl titanium dichloride and monopentamethylcyclopentadienyl titanium trichloride. Examples thereof include compounds having at least one ligand having a cyclopentadienyl skeleton, an indenyl skeleton, or a fluorenyl skeleton. Examples of the reducing organometallic compound include organic alkali metal compounds such as organolithium, organomagnesium compounds, organoaluminum compounds, organoboron compounds, and organozinc compounds.
The hydrogenation reaction is preferably carried out in a temperature range of 0 to 200 ° C, more preferably 30 to 150 ° C. The pressure of hydrogen used for the hydrogenation reaction is preferably 0.1 to 15 MPa, more preferably 0.2 to 10 MPa, and still more preferably 0.3 to 5 MPa. The hydrogenation reaction time is preferably 3 minutes to 10 hours, more preferably 10 minutes to 5 hours. The hydrogenation reaction can be any of a batch process, a continuous process, or a combination thereof.
本発明で使用される変性エラストマーの水添物においては、共役ジエン化合物に基づく不飽和二重結合のトータル水素添加率は目的に合わせて任意に選択でき、特に限定されなく、共役ジエン化合物に基づく不飽和二重結合の70%以上、好ましくは80%以上、更に好ましくは90%以上が水添されていても良いし、一部のみが水添されていても良い。又、共役ジエン化合物の一部のみを水素添加する場合には、水添率が10%以上90%未満、或いは15%以上85%未満、所望によっては20%以上80%未満にすることが好ましい。更に、本発明で使用される変性エラストマーの水添物においては、水素添加前の共役ジエンにもとづくビニル結合の水素添加率が、好ましくは85%以上、より好ましくは90%以上、更に好ましくは95%以上であることが、熱安定性に優れた組成物を得る上で推奨される。ここで、「ビニル結合の水素添加率」とは、重合体中に組み込まれている水素添加前の共役ジエンにもとづくビニル結合のうち、水素添加されたビニル結合の割合をいう。尚、変性ランダム共重合体や変性ブロック共重合体中のビニル芳香族炭化水素に基づく芳香族二重結合の水添率については特に制限はないが、好ましくは50%以下、より好ましくは30%以下、更に好ましくは20%以下が推奨される。該水添率は、核磁気共鳴装置(NMR)により知ることができる。 In the hydrogenated product of the modified elastomer used in the present invention, the total hydrogenation rate of the unsaturated double bond based on the conjugated diene compound can be arbitrarily selected according to the purpose and is not particularly limited, and is based on the conjugated diene compound. 70% or more, preferably 80% or more, more preferably 90% or more of the unsaturated double bonds may be hydrogenated, or only a part may be hydrogenated. When only a part of the conjugated diene compound is hydrogenated, the hydrogenation rate is preferably 10% or more and less than 90%, or 15% or more and less than 85%, and preferably 20% or more and less than 80%. . Furthermore, in the hydrogenated product of the modified elastomer used in the present invention, the hydrogenation rate of vinyl bonds based on the conjugated diene before hydrogenation is preferably 85% or more, more preferably 90% or more, and still more preferably 95. % Or more is recommended for obtaining a composition having excellent thermal stability. Here, the “hydrogenation rate of vinyl bonds” refers to the proportion of vinyl bonds that are hydrogenated out of vinyl bonds based on conjugated dienes that are incorporated in the polymer before hydrogenation. The hydrogenation rate of the aromatic double bond based on the vinyl aromatic hydrocarbon in the modified random copolymer or modified block copolymer is not particularly limited, but is preferably 50% or less, more preferably 30%. Hereinafter, more preferably 20% or less is recommended. The hydrogenation rate can be known by a nuclear magnetic resonance apparatus (NMR).
又、本発明での変性エラストマーは、1次変性エラストマーに、更に変性剤を更に付加させてもよい。該方法で得られた変性エラストマーを2次変性エラストマーという。ここでの変性剤は、一次変性エラストマーの末端部に結合した官能基と反応しうる変性剤である。例えば、1次変性エラストマーの末端部にアミノ基を有する場合に、更に溶液状態、又は溶融状態で、酸無水物、エポキシ基を含有する変性剤と反応させ、末端部の官能基を転化させたり、2つ以上の酸無水物、エポキシ基を有する変性剤を使用し、末端部へ多量の官能基を導入した変性エラストマーを製造することが出来る。ここでの変性剤に使用量は、1次変性エラストマーに結合されている官能基1当量あたり、0.3〜10モル、好ましくは0.4〜5モル、更に好ましくは0.5〜4モルであることが推奨される。 Further, the modified elastomer in the present invention may be further added with a modifying agent to the primary modified elastomer. The modified elastomer obtained by this method is called secondary modified elastomer. The modifying agent here is a modifying agent capable of reacting with a functional group bonded to the terminal portion of the primary modified elastomer. For example, when the terminal group of the primary modified elastomer has an amino group, it is further reacted with a modifier containing an acid anhydride or an epoxy group in a solution or in a molten state to convert the functional group at the terminal. Using a modifier having two or more acid anhydrides and epoxy groups, a modified elastomer having a large amount of functional groups introduced into the terminal portion can be produced. The amount used for the modifier here is 0.3 to 10 mol, preferably 0.4 to 5 mol, more preferably 0.5 to 4 mol, per equivalent of the functional group bonded to the primary modified elastomer. It is recommended that
2次変性エラストマーを得る方法は、特に制限されるものではなく、公知の方法が利用できる。例えば、後述する溶融混練方法や各成分を溶媒等に溶解又は分散混合して反応させる方法などが挙げられる。各成分を溶媒等に溶解又は分散混合して反応させる方法において、溶媒としては各成分を溶解又は分散するものであれば特に制限はなく、脂肪族炭化水素、脂環式炭化水素、芳香族炭化水素などの炭化水素系溶媒の他、含ハロゲン系溶媒、エステル系溶媒、エーテル系溶媒などが使用できる。かかる方法において各成分を反応させる温度は、一般に−10〜150℃、好ましくは30〜120℃である。反応に要する時間は条件によって異なるが、一般に3時間以内であり、好ましくは数秒〜1時間である。特に好ましい方法は、1次変性エラストマーを製造した溶液中に、変性剤を添加して反応させて2次変性エラストマーを得る方法が推奨される。 The method for obtaining the secondary modified elastomer is not particularly limited, and a known method can be used. Examples thereof include a melt kneading method described later and a method of reacting each component by dissolving or dispersing in a solvent or the like. In the method of reacting each component dissolved or dispersed in a solvent or the like, the solvent is not particularly limited as long as it dissolves or disperses each component, and aliphatic hydrocarbon, alicyclic hydrocarbon, aromatic carbonization. In addition to hydrocarbon solvents such as hydrogen, halogen-containing solvents, ester solvents, ether solvents and the like can be used. In such a method, the temperature at which each component is reacted is generally −10 to 150 ° C., preferably 30 to 120 ° C. The time required for the reaction varies depending on conditions, but is generally within 3 hours, preferably several seconds to 1 hour. A particularly preferable method is a method in which a secondary modified elastomer is obtained by adding a modifier to the solution in which the primary modified elastomer is produced and reacting it.
2次変性エラストマーの製造において用いられる変性剤としては、カルボキシル基を有する変性剤としては、マレイン酸、シュウ酸、コハク酸、アジピン酸、アゼライン酸、セバシン酸、ドデカンジカルボン酸、カルバリル酸、シクロヘキサンジカルボン酸、シクロペンタンジカルボン酸等の脂肪族カルボン酸、テレフタル酸、イソフタル酸、オルトフタル酸、ナフタレンジカルボン酸、ビフェニルジカルボン酸、トリメシン酸、トリメリット酸、ピロメリット酸等の芳香族カルボン酸等が挙げられる。
酸無水物基を有する変性剤としては、無水マレイン酸、無水イタコン酸、無水ピロメリット酸、シス−4−シクロヘキサン−1,2−ジカルボン酸無水物、1,2,4,5−ベンゼンテトラカルボン酸二無水物、5−(2,5−ジオキソテトラヒドロ−3−フラニル)−3−メチル−3−シクロヘキセン−1,2−ジカルボン酸無水物等が挙げられる。
イソシアネート基を有する変性剤としてはトリレンジイソシアナート、ジフェニルメタンジイソシアナート、多官能芳香族イソシアナート等が挙げられる。
Examples of the modifier used in the production of the secondary modified elastomer include a carboxyl group-containing modifier such as maleic acid, oxalic acid, succinic acid, adipic acid, azelaic acid, sebacic acid, dodecanedicarboxylic acid, carbaryl acid, and cyclohexanedicarboxylic acid. Acid, aliphatic carboxylic acid such as cyclopentanedicarboxylic acid, aromatic carboxylic acid such as terephthalic acid, isophthalic acid, orthophthalic acid, naphthalenedicarboxylic acid, biphenyldicarboxylic acid, trimesic acid, trimellitic acid, pyromellitic acid, etc. .
Examples of the modifier having an acid anhydride group include maleic anhydride, itaconic anhydride, pyromellitic anhydride, cis-4-cyclohexane-1,2-dicarboxylic anhydride, 1,2,4,5-benzenetetracarboxylic acid. And acid dianhydride, 5- (2,5-dioxotetrahydro-3-furanyl) -3-methyl-3-cyclohexene-1,2-dicarboxylic acid anhydride, and the like.
Examples of the modifier having an isocyanate group include tolylene diisocyanate, diphenylmethane diisocyanate, polyfunctional aromatic isocyanate and the like.
エポキシ基を有する変性剤としてはテトラグリジジル−1,3−ビスアミノメチルシクロヘキサン、テトラグリシジル−m−キシレンジアミン、ジグリシジルアニリン、エチレングリコールジグリシジル、プロピレングリコールジグリシジル、テレフタル酸ジグリシジルエステルアクリレート等の他、1次変性エラストマー又はその水添物を得るために使用される変性剤として記載されているエポキシ化合物などが挙げられる。
シラノール基を有する変性剤としては、1次変性エラストマーで使用される変性剤として記載されているアルコキシシラン化合物の加水分解物等が挙げられる。アルコキシシラン基を有する架橋剤としてはビス−(3−トリエトキシシリルプロピル)−テトラスルファン、ビス−(3−トリエトキシシリルプロピル)−ジスルファン、エトキシシロキサンオリゴマー等の他、1次変性エラストマーで使用される変性剤として記載されているシラン化合物などが挙げられる。
Examples of the modifier having an epoxy group include tetraglycidyl-1,3-bisaminomethylcyclohexane, tetraglycidyl-m-xylenediamine, diglycidylaniline, ethylene glycol diglycidyl, propylene glycol diglycidyl, terephthalic acid diglycidyl ester acrylate, etc. In addition, the epoxy compound described as a modifier used in order to obtain a primary modified elastomer or a hydrogenated product thereof may be used.
Examples of the modifying agent having a silanol group include hydrolysates of alkoxysilane compounds described as modifying agents used in primary modified elastomers. As a crosslinking agent having an alkoxysilane group, bis- (3-triethoxysilylpropyl) -tetrasulfane, bis- (3-triethoxysilylpropyl) -disulfane, ethoxysiloxane oligomer, etc. are used in primary modified elastomers. And silane compounds described as the modifying agents.
本発明で使用する変性エラストマーの重量平均分子量は、特に限定されないが、エラストマー組成物の機械物性及び成形性のバランスから3万〜100万以下、より好ましくは4万〜50万、更に好ましくは5〜40万程度である。
本発明においての変性エラストマー中の共役ジエン化合物に基づくビニル結合量は、核磁気共鳴装置(NMR)を用いて知ることができる。また水添率も、同装置を用いて知ることができる。変性重合体の重量平均分子量は、ゲルパーミュエーションクロマトグラフィー(GPC)による測定を行い、クロマトグラムのピークの分子量を、市販の標準ポリスチレンの測定から求めた検量線(標準ポリスチレンのピーク分子量を使用して作成)を使用して求めることができる。
The weight average molecular weight of the modified elastomer used in the present invention is not particularly limited, but is preferably 30,000 to 1,000,000, more preferably 40,000 to 500,000, and still more preferably 5 from the balance of mechanical properties and moldability of the elastomer composition. It is about ~ 400,000.
The vinyl bond amount based on the conjugated diene compound in the modified elastomer in the present invention can be known using a nuclear magnetic resonance apparatus (NMR). The hydrogenation rate can also be known using the same apparatus. The weight average molecular weight of the modified polymer was measured by gel permeation chromatography (GPC), and the molecular weight of the peak of the chromatogram was obtained from a standard polystyrene measurement curve (using the standard polystyrene peak molecular weight). Can be determined using).
本発明の成分(b)の配合量は、成分(a)の熱可塑性樹脂100重量部あたり、1〜100重量部、好ましくは、1〜70重量部、さらに好ましくは、2〜50重量部である。
本発明を構成するもう一つの成分(c)は層状粘土鉱物である。層状粘土鉱物としては、例えば、モンモリナイト、サポタイト、ハイデライト、ノントライト、ヘクトライト、ステイブンサイト等のスメクタイト系や、バーミキュサイト、ハロイサイト、膨潤性マイカ等が挙げられ、天然又は合成の当該層状粘土鉱物のいずれも使用することができる。特に、本発明においては、有機化した層状粘土鉱物が、層状粘土鉱物の層剥離性、微分散性の面で好ましい。又、層状粘土鉱物の陽イオン交換容量は、50〜200ミリ当量/100gであることが好ましく、陽イオン交換容量が50ミリ当量/100g未満の場合には、有機オニウムイオンのイオン交換による有機化が不十分となり、結果的に層状粘土鉱物の層剥離は不十分となり、陽イオン交換容量が200ミリ当量/100gを越える場合には、層状粘土鉱物の層間の結合が強固であるために、有機オニウムイオンのイオン交換による層間への介入が困難となり、結果的に層状粘土鉱物の層剥離が不十分となる傾向にある。
The amount of component (b) of the present invention is 1 to 100 parts by weight, preferably 1 to 70 parts by weight, more preferably 2 to 50 parts by weight per 100 parts by weight of the thermoplastic resin of component (a). is there.
Another component (c) constituting the present invention is a layered clay mineral. Examples of layered clay minerals include smectites such as montmorillonite, sapotite, hydelite, nontrite, hectorite, and stevensite, and vermiculite, halloysite, and swellable mica. Any of the minerals can be used. In particular, in the present invention, the organically layered clay mineral is preferable in terms of the layer peelability and fine dispersibility of the layered clay mineral. Further, the cation exchange capacity of the layered clay mineral is preferably 50 to 200 meq / 100 g. When the cation exchange capacity is less than 50 meq / 100 g, the organication by the organic onium ion exchange is performed. As a result, delamination of the layered clay mineral becomes insufficient, and when the cation exchange capacity exceeds 200 meq / 100 g, the bonding between the layers of the layered clay mineral is strong, Intervention between layers by ion exchange of onium ions becomes difficult, and as a result, delamination of layered clay minerals tends to be insufficient.
層状粘土鉱物の有機化に用いる有機オニウムイオンの例としては、ステアリルアンモニウムイオン、ヘキシルアンモニウムイオン、オクチルアンモニウムイオン、2−エチルヘキシルアンモニウムイオン、ドデシルアンモニウムイオン、オクタデシルアンモニウムイオン、ジオクチルジメチルアンモニウムイオン、トリオクチルアンモニウムイオン、ジステアリルアンモニウムイオン、1−ヘキセニルアンモニウムイオン、1−ドデセニルアンモニウムイオン、9−オクタデセルアンモニウムイオン、9,12−オクタデセルアンモニウムイオン、12−アミノドデカン酸と塩酸からなるアンモニウム塩、アルキルプロピレンジアミンと塩酸からなるアンモニウム塩等のアンモニウムイオン、テトラエチルホスフォニウムイオン、トリエチルベンジルフォスホニウムイオン、テトラ−n−-ブチルホスフォニウムイオン、トリ−n−ブチルヘキサデシルホスフォニウムイオン等のホスフォニウムイオンが挙げられる。本発明においては、層状粘土鉱物の1種あるいは2種以上を使用してもよい。 Examples of organic onium ions used for organizing layered clay minerals include stearyl ammonium ion, hexyl ammonium ion, octyl ammonium ion, 2-ethylhexyl ammonium ion, dodecyl ammonium ion, octadecyl ammonium ion, dioctyl dimethyl ammonium ion, trioctyl ammonium ion. Ions, distearyl ammonium ions, 1-hexenyl ammonium ions, 1-dodecenyl ammonium ions, 9-octadecel ammonium ions, 9,12-octadecel ammonium ions, ammonium salts consisting of 12-aminododecanoic acid and hydrochloric acid, Ammonium ion such as ammonium salt consisting of alkylpropylenediamine and hydrochloric acid, tetraethylphosphonium ion, triethyl Emissions Jill Foss phosphonium ion, tetra -n-- butyl phosphonium ion, and phosphonium ions such as tri -n- butyl hexadecyl phosphonium ion. In the present invention, one or more layered clay minerals may be used.
本発明の組成物において添加される層状粘土鉱物は、一部又は全部が層剥離した状態で微分散して存在している。具体的には、組成物中において層状粘土鉱物の単位層の1枚1枚が、あるいは材料の物性低下を来たさない範囲において数枚又数十枚以下の積層状態のものが、互いに十分な層間距離をもって分散しており、好ましくは、層状粘土鉱物の20%以上が50nm以下の厚みで存在している。本発明において、層状粘土鉱物の層剥離が不十分な場合には、十分な物性改質効果は得られない。50nm以下で存在している層状粘土鉱物の割合は、エラストマー組成物の成形品の流動方向に垂直に切断し、層状粘土鉱物を透過型電子顕微鏡で観察し、層状粘土鉱物の厚み、及び幅を測定し、50nm厚み以下の成分の断面積の合計値を、全層状粘土鉱物成分の断面積の合計値で割った値を%で表したものである。 The layered clay mineral added in the composition of the present invention is finely dispersed and present in a state where part or all of the layered clay mineral is separated. Specifically, in the composition, each unit layer of layered clay minerals, or several or dozens of layers in a layered state within a range where the physical properties of the material do not deteriorate are sufficiently sufficient for each other. The interlaminar distance is preferably dispersed, and preferably 20% or more of the layered clay mineral is present in a thickness of 50 nm or less. In the present invention, when layer peeling of the layered clay mineral is insufficient, a sufficient physical property modification effect cannot be obtained. The ratio of the layered clay mineral present at 50 nm or less is determined by cutting the layered clay mineral perpendicularly to the flow direction of the molded article of the elastomer composition, observing the layered clay mineral with a transmission electron microscope, and determining the thickness and width of the layered clay mineral. A value obtained by dividing the total value of the cross-sectional areas of the components having a thickness of 50 nm or less by the total value of the cross-sectional areas of all layered clay mineral components is expressed in%.
本発明の熱可塑性樹脂組成物は、各種物性バランス、成形性の面から成分(b)変性エラストマー100重量部に対して、成分(c)の層状粘土鉱物が1〜60重量部、好ましくは2〜55重量部、更に好ましくは3〜50重量部である。1重量部未満の場合には、層状粘土鉱物の改質効果が少なく、60重量部を越える場合には、得られる熱可塑性樹脂組成物は、成形性に劣るものとなる。
本発明を構成する成分(d)であるオレフィン系ゴム状重合体としては、エチレン−α−オレフィン共重合ゴムが挙げられる。エチレン−α−オレフィン共重合体としては、エチレンと炭素数3〜12のα−オレフィン、例えばプロピレン、1−ブテン、イソブチレン、オクテンなどを共重合したものであればいずれでもよいが、脆化温度、剛性の観点からはエチレン−オクテン共重合体が好ましく中でも特にオクテン含量が15wt%以上のものが好ましい。これらエチレン−α−オレフィン共重合体は、特に重合方法は問わないが、比重が小さいこと等から、活性点が均一のメタロセン触媒で重合したものが好ましい。重合系としては、溶液均一系、スラリー系いずれでもかまわない。
In the thermoplastic resin composition of the present invention, the layered clay mineral of the component (c) is 1 to 60 parts by weight, preferably 2 parts per 100 parts by weight of the component (b) modified elastomer from the viewpoint of balance of physical properties and moldability. It is -55 weight part, More preferably, it is 3-50 weight part. When the amount is less than 1 part by weight, the effect of modifying the layered clay mineral is small, and when it exceeds 60 parts by weight, the resulting thermoplastic resin composition is inferior in moldability.
Examples of the olefinic rubbery polymer that is the component (d) constituting the present invention include ethylene-α-olefin copolymer rubber. The ethylene-α-olefin copolymer may be any copolymerized ethylene and α-olefin having 3 to 12 carbon atoms, such as propylene, 1-butene, isobutylene, octene, etc. From the viewpoint of rigidity, ethylene-octene copolymers are preferable, and those having an octene content of 15 wt% or more are particularly preferable. These ethylene-α-olefin copolymers are not particularly limited in polymerization method, but are preferably those polymerized with a metallocene catalyst having a uniform active site because of low specific gravity and the like. As the polymerization system, either a solution uniform system or a slurry system may be used.
本発明の成分(d)の配合量は、成分(a)の熱可塑性樹脂100重量部あたり、100重量部以下、好ましくは1〜70重量部、さらに好ましくは2〜50重量部である。
又、本発明は場合により成分(e)を配合する。成分(e)は、共役ジエンとビニル芳香族炭化水素からなるブロック共重合体又はその水添物から選ばれる少なくとも1種のエラストマー重合体である。該エラストマー重合体の製造方法としては、例えば特公昭36−19286号公報、特公昭43−17979号公報、特公昭46−32415号公報、特公昭49−36957号公報、特公昭48−2423号公報、特公昭48−4106号公報、特公昭56−28925号公報、特公昭51−49567号公報、特開昭59−166518号公報、特開昭60−186577号公報などに記載された方法が挙げられる。また、本発明で用いられるブロック共重合体は、直鎖状、放射状その他特に限定されるものではなく、例えば下記一般式で表わされるものである。
The amount of component (d) of the present invention is 100 parts by weight or less, preferably 1 to 70 parts by weight, more preferably 2 to 50 parts by weight per 100 parts by weight of the thermoplastic resin of component (a).
Moreover, this invention mix | blends a component (e) depending on the case. Component (e) is at least one elastomeric polymer selected from block copolymers consisting of conjugated dienes and vinyl aromatic hydrocarbons, or hydrogenated products thereof. Examples of the method for producing the elastomer polymer include Japanese Patent Publication No. 36-19286, Japanese Patent Publication No. 43-17799, Japanese Patent Publication No. 46-32415, Japanese Patent Publication No. 49-36957, Japanese Patent Publication No. 48-2423. And the methods described in JP-B-48-4106, JP-B-56-28925, JP-B-51-49567, JP-A-59-166518, JP-A-60-186777, and the like. It is done. In addition, the block copolymer used in the present invention is not particularly limited to a linear shape, a radial shape or the like, and is represented by, for example, the following general formula.
(A−B)n−X、 A−(B−A)n−X、
B−(A−B)n−X、 X−(A−B)n、
X−(A−B)n−X、 X−A−(B−A)n−X、
X−B−(A−B)n−X、 [(B−A)n]m−X、
[(A−B)n]m−X、 [(B−A)n−B]m−X、
[(A−B)n−A]m−X
(AB) n -X, A- (BA) n -X,
B- (A-B) n -X, X- (A-B) n ,
X- (AB) n -X, XA- (BA) n -X,
X-B- (AB) n -X, [(BA) n ] m -X,
[(AB) n ] m- X, [(BA) n- B] m- X,
[(AB) n -A] m -X
(上式において、Aはビニル芳香族炭化水素を主体とする重合体ブロックであり、Bは共役ジエンを主体とする重合体である。AブロックとBブロックとの境界は必ずしも明瞭に区別される必要はない。又、nは1以上の整数、好ましくは1〜5の整数である。mは2以上の整数、好ましくは2〜11の整数である。Xは、後述する官能基を有する官能基原子団を示す。Xに結合しているポリマー鎖の構造は同一でも、異なっていても良い。)
尚、上記において、ビニル芳香族炭化水素を主体とする重合体ブロックAはビニル芳香族炭化水素を好ましくは50wt%以上、より好ましくは70wt%以上含有するビニル芳香族炭化水素と共役ジエンとの共重合体ブロック及び/又はビニル芳香族炭化水素単独重合体ブロックを示し、共役ジエンを主体とする重合体ブロックBは共役ジエンを好ましくは50wt%を超える量で、より好ましくは60wt%以上含有する共役ジエンとビニル芳香族炭化水素との共重合体ブロック及び/又は共役ジエン単独重合体ブロックを示す。共重合体ブロック中のビニル芳香族炭化水素は均一に分布していても、又テーパー状に分布していてもよい。
(In the above formula, A is a polymer block mainly composed of vinyl aromatic hydrocarbons, and B is a polymer mainly composed of conjugated dienes. The boundary between the A block and the B block is always clearly distinguished. N is an integer of 1 or more, preferably an integer of 1 to 5. m is an integer of 2 or more, preferably an integer of 2 to 11. X is a functional group having a functional group described later. (Indicates a basic atomic group. The structure of the polymer chain bonded to X may be the same or different.)
In the above, the polymer block A mainly composed of vinyl aromatic hydrocarbons preferably contains 50% by weight or more, more preferably 70% by weight or more of vinyl aromatic hydrocarbons and conjugated dienes. A polymer block and / or a vinyl aromatic hydrocarbon homopolymer block, the polymer block B mainly comprising a conjugated diene is preferably a conjugated diene containing more than 50 wt%, more preferably 60 wt% or more. A copolymer block of a diene and a vinyl aromatic hydrocarbon and / or a conjugated diene homopolymer block are shown. The vinyl aromatic hydrocarbons in the copolymer block may be uniformly distributed or tapered.
又、該変性ブロック共重合体部分には、ビニル芳香族炭化水素が均一に分布している部分及び/又はテーパー状に分布している部分がそれぞれ複数個共存していてもよい。本発明で使用するブロック共重合体は、上記一般式で表されるブロック共重合体の任意の混合物でもよい。特に、本発明で用いる成分(e)のブロック共重合体としては、スチレンブロックとブタジエンブロックとからなるブロック共重合体、スチレンブロックとイソプレンブロックとからなるブロック共重合体、又は該ブロック共重合体の共役ジエンブロック部を部分水添して得られるブロック共重合体、又はさらに完全水添して得られるブロック共重合体が、各種物性バランスの面で好ましい。成分(e)の配合量は、成分(a)の熱可塑性樹脂100重量部あたり100重量部以下である。優れた耐衝撃性を要求される場合、1重量部以上配合されることが好ましい。 In addition, the modified block copolymer portion may coexist with a plurality of portions where vinyl aromatic hydrocarbons are uniformly distributed and / or portions where tapes are distributed. The block copolymer used in the present invention may be an arbitrary mixture of block copolymers represented by the above general formula. In particular, as the block copolymer of the component (e) used in the present invention, a block copolymer composed of a styrene block and a butadiene block, a block copolymer composed of a styrene block and an isoprene block, or the block copolymer A block copolymer obtained by partial hydrogenation of the conjugated diene block part or a block copolymer obtained by further complete hydrogenation is preferred in terms of balance of various physical properties. The amount of component (e) is 100 parts by weight or less per 100 parts by weight of the thermoplastic resin of component (a). When excellent impact resistance is required, 1 part by weight or more is preferably blended.
本発明においては、その他必要に応じて任意の添加剤を配合することができる。添加剤の種類は、熱可塑性樹脂やエラストマー・ゴムの配合に一般的に用いられるものであれば特に制限はない。例えば、金属水酸化物、シリカ系無機充填剤、金属酸化物等の無機充填材や有機充填材を添加することができる。これらの無機充填材や有機充填材は、本発明の熱可塑性樹脂組成物の物性を損なわない程度に添加することが推奨される。
金属水酸化物は水和系無機充填剤であり、例えば水酸化アルミニウム、水酸化マグネシウム、水酸化ジルコニウム、水和珪酸アルミニウム、水和珪酸マグネシウム、塩基性炭酸マグネシウム、ハイドロタルサイト、水酸化カルシウム、水酸化バリウム、酸化錫の水和物、硼砂等の無機金属化合物の水和物等を用いることができる。2種以上の金属水酸化物の混合物、金属水酸化物と金属水酸化物以外の無機充填剤の混合物も使用できる。
In the present invention, other optional additives can be blended as necessary. The type of additive is not particularly limited as long as it is generally used for blending thermoplastic resins, elastomers and rubbers. For example, inorganic fillers and organic fillers such as metal hydroxides, silica-based inorganic fillers, and metal oxides can be added. It is recommended that these inorganic fillers and organic fillers be added to such an extent that the physical properties of the thermoplastic resin composition of the present invention are not impaired.
Metal hydroxide is a hydrated inorganic filler, such as aluminum hydroxide, magnesium hydroxide, zirconium hydroxide, hydrated aluminum silicate, hydrated magnesium silicate, basic magnesium carbonate, hydrotalcite, calcium hydroxide, Barium hydroxide, tin oxide hydrate, inorganic metal compound hydrate such as borax, and the like can be used. A mixture of two or more kinds of metal hydroxides, and a mixture of a metal hydroxide and an inorganic filler other than the metal hydroxide can also be used.
シリカ系無機充填剤としては、化学式SiO2、又はSi3Alを構成単位の主成分とする固体粒子、例えばシリカ、タルク、カオリンクレイ、ウォラストナイト、ベントナイト、ゼオライト、珪藻土、合成シリカ、ガラスビーズ、ガラスバルーン、ガラスフレーク、ガラス繊維等の無機繊維状物質などを用いることができる。また表面を疎水化したシリカ系無機充填剤や、2種以上のシリカ系無機充填剤の混合物、シリカ系無機充填剤とシリカ系以外の無機充填剤の混合物も使用できる。シリカとしては乾式法ホワイトカーボン、湿式法ホワイトカーボン、合成ケイ酸塩系ホワイトカーボン、コロイダルシリカと呼ばれているもの等が使用できる。 Examples of the silica-based inorganic filler include solid particles having a chemical formula SiO 2 or Si 3 Al as a main component, such as silica, talc, kaolin clay, wollastonite, bentonite, zeolite, diatomaceous earth, synthetic silica, and glass beads. Inorganic fibrous materials such as glass balloons, glass flakes, and glass fibers can be used. Further, a silica-based inorganic filler having a hydrophobic surface, a mixture of two or more types of silica-based inorganic fillers, and a mixture of a silica-based inorganic filler and a non-silica inorganic filler can also be used. As silica, dry process white carbon, wet process white carbon, synthetic silicate-based white carbon, and what is called colloidal silica can be used.
金属酸化物としては、化学式MxOy(Mは金属原子、x、yは各々1〜6の整数)を構成単位の主成分とする固体粒子、例えばアルミナ、酸化チタン、酸化マグネシウム、酸化亜鉛、酸化鉄等を用いることができる。2種以上の金属酸化物の混合物、金属酸化物と金属酸化物以外の無機充填剤の混合物も使用できる。
これら無機充填材は、1種単独でまたは2種以上を組み合わせて用いることができる。またその他無機充填材として、炭酸カルシウム、炭酸マグネシウム、炭酸バリウム、珪酸カルシウム、硫酸カルシウム、亜硫酸カルシウム、酸化チタン、チタン酸カリウム、硫酸バリウム、チタン酸バリウム、酸化亜鉛、アスベスト、スラッグウールなどの無機充填剤を添加することができる。
Examples of the metal oxide include solid particles having a chemical formula M x O y (M is a metal atom, x and y are integers of 1 to 6) as a main component, such as alumina, titanium oxide, magnesium oxide, and zinc oxide. Iron oxide or the like can be used. A mixture of two or more kinds of metal oxides and a mixture of metal oxides and inorganic fillers other than metal oxides can also be used.
These inorganic fillers can be used alone or in combination of two or more. Other inorganic fillers include calcium carbonate, magnesium carbonate, barium carbonate, calcium silicate, calcium sulfate, calcium sulfite, titanium oxide, potassium titanate, barium sulfate, barium titanate, zinc oxide, asbestos, slug wool, etc. An agent can be added.
また、カーボンブラック、アセチレンブラック、ファーネスブラック等の有機充填材を添加することができる。カーボンブラックとしては、FT、SRF、FEF、HAF、ISAF、SAF等の各クラスのカーボンブラックが使用でき、窒素吸着比表面積が50mg/g以上のカーボンブラックが好ましい。
本発明においては、無機充填材の表面を、ステアリン酸、オレイン酸、パルチミン酸等の脂肪酸またはその金属塩;パラフィン、ワックス、ポリエチレンワックス、又はそれらの変性物;有機ボラン、有機チタネート等の有機金属化合物;シランカップリング剤等で表面処理したものであってもよい。
Moreover, organic fillers, such as carbon black, acetylene black, and furnace black, can be added. As carbon black, carbon black of each class such as FT, SRF, FEF, HAF, ISAF, and SAF can be used, and carbon black having a nitrogen adsorption specific surface area of 50 mg / g or more is preferable.
In the present invention, the surface of the inorganic filler is treated with a fatty acid such as stearic acid, oleic acid, or palmitic acid or a metal salt thereof; paraffin, wax, polyethylene wax, or a modified product thereof; an organic metal such as organic borane or organic titanate. Compound: A surface treated with a silane coupling agent or the like may be used.
シランカップリング剤としては、シリカ等の無機充填材に一般的に使用されているものが使用でき、例えば3−メルカプトプロピル−トリメトキシシラン、3−メルカプトプロピルメチルジメトキシシラン、ビニルトリメトキシシラン、ビニルトリエトキシシラン等が挙げられる。本発明おいて特に好ましいシランカップリング剤は、シラノール基又はアルコキシシラン基を有すると同時にメルカプト基又は/及び硫黄が2個以上連結したポリスルフィド結合を有するものであり、かかるシランカップリング剤としては例えば、3−メルカプトプロピル−トリメトキシシラン、3−アミノプロピルトリエトキシシラン、ビス−[3−(トリエトキシシリル)−プロピル]−テトラスルフィド、ビス−[3−(トリエトキシシリル)−プロピル]−ジスルフィド、ビス−[3−(トリエトキシシリル)−プロピル]−トリスルフィド、ビス−[2−(トリエトキシシリル)−エチル]−テトラスルフィド、3−トリエトキシシリルプロピルーN,Nージメチルチオカルバモイルテトラスルフィド、3−トリメトキシシリルプロピルーN,Nージメチルチオカルバモイルテトラスルフィド、3−トリエトキシシリルプロピルベンゾチアゾールテトラスルフィド、3−トリメトキシシリルプロピルベンゾチアゾールテトラスルフィド等が挙げられる。シランカップリング剤の配合量は、無機充填材等の充填剤による補強効果を十分に発揮するためには、充填材に対してその配合量の0.1〜20wt%、より好ましくは0.5〜18wt%、さらに好ましくは1〜15wt%が推奨される。なお、シランカップリング剤の使用に際して、硫黄や有機過酸化物を併用しても良い。 As the silane coupling agent, those generally used for inorganic fillers such as silica can be used. For example, 3-mercaptopropyl-trimethoxysilane, 3-mercaptopropylmethyldimethoxysilane, vinyltrimethoxysilane, vinyl Examples include triethoxysilane. Particularly preferred silane coupling agents in the present invention are those having a silanol group or an alkoxysilane group and simultaneously having a polysulfide bond in which two or more mercapto groups and / or sulfur are linked. Examples of such silane coupling agents include: 3-mercaptopropyl-trimethoxysilane, 3-aminopropyltriethoxysilane, bis- [3- (triethoxysilyl) -propyl] -tetrasulfide, bis- [3- (triethoxysilyl) -propyl] -disulfide Bis- [3- (triethoxysilyl) -propyl] -trisulfide, bis- [2- (triethoxysilyl) -ethyl] -tetrasulfide, 3-triethoxysilylpropyl-N, N-dimethylthiocarbamoyltetra Sulfide, 3-trimethoxysilyl group Piru N, N over-dimethylthiocarbamoyl tetrasulfide, 3-triethoxysilylpropyl benzothiazole tetrasulfide, 3-trimethoxysilylpropyl benzothiazole tetrasulfide and the like. The blending amount of the silane coupling agent is 0.1 to 20 wt% of the blending amount with respect to the filler, more preferably 0.5 in order to sufficiently exert the reinforcing effect by the filler such as the inorganic filler. -18 wt%, more preferably 1-15 wt% is recommended. In addition, when using a silane coupling agent, you may use together sulfur and an organic peroxide.
本発明においては、加工性を改良するためにゴム用軟化剤を配合することが出来る。ゴム用軟化剤としては鉱物油又は液状もしくは低分子量の合成軟化剤が適しており、一般にゴムの軟化、増容、加工性向上に用いられるプロセスオイル又はエクステンダーオイルと呼ばれる鉱物油系ゴム用軟化剤や、ポリブテン、低分子量ポリブタジエン、流動パラフィン、ミネラルオイル、有機ポリシロキサン、ヒマシ油、アマニ油等の軟化剤が使用できる。これらの軟化剤は重合体の製造時に予め重合体の中に含ませておいても良い。
本発明においては、その他の添加剤として、酸化防止剤、紫外線吸収剤や光安定剤、ステアリン酸、ベヘニン酸、ステアリン酸亜鉛、ステアリン酸カルシウム、ステアリン酸マグネシウム、エチレンビスステアロアミド等の滑剤、離型剤、パラフィン、可塑剤、難燃剤、帯電防止剤、有機繊維、炭素繊維、金属ウィスカ等の補強剤、顔料、着色剤等「ゴム・プラスチック配合薬品」(ラバーダイジェスト社編)などに記載されたものが挙げられる。
In the present invention, a rubber softener can be added to improve processability. Mineral oils or liquid or low molecular weight synthetic softeners are suitable as rubber softeners, and are generally used as process oil or extender oil for softening, increasing volume and improving processability of rubber. Alternatively, softening agents such as polybutene, low molecular weight polybutadiene, liquid paraffin, mineral oil, organic polysiloxane, castor oil, and linseed oil can be used. These softening agents may be included in the polymer in advance when the polymer is produced.
In the present invention, as other additives, antioxidants, ultraviolet absorbers and light stabilizers, lubricants such as stearic acid, behenic acid, zinc stearate, calcium stearate, magnesium stearate, ethylene bisstearamide, release agents It is described in “rubber / plastic compounding chemicals” (edited by Rubber Digest Co., Ltd.) such as molds, paraffin, plasticizers, flame retardants, antistatic agents, reinforcing agents such as organic fibers, carbon fibers and metal whiskers, pigments and coloring agents. Can be mentioned.
本発明の熱可塑性樹脂組成物の製造方法は、特に制限されるものではなく、公知の方法が利用できる。例えば、バンバリ−ミキサ−、単軸スクリュ−押出機、2軸スクリュ−押出機、コニ−ダ、多軸スクリュ−押出機等の一般的な混和機を用いた溶融混練方法、各成分を溶解又は分散混合後、溶剤を加熱除去する方法等が用いられ、特に押出機による溶融混練法が生産性、良混練性の点から好ましい。
その際、成分(b)の変性エラストマーと成分(c)の層状粘土鉱物とをあらかじめ混練後成分(a)である熱可塑性樹脂及び場合により成分(d)、(e)とを溶融混練する方法や、成分(a)と成分(b)と成分(c)及び場合により成分(d)、(e)を同時に溶融混練する方法等が用いられる。また、成分(b)と成分(c)及び場合により成分(d)、(e)とをあらかじめ混練後、成分(a)と溶融混練する方法でもよい。また、炭化水素系溶媒に変性エラストマーを溶解した状態で、水に分散された層状粘土鉱物を添加し、その後水蒸気をストリップし炭化水素系溶媒を除去したエラストマー組成物を押出機に通して、水を脱揮しながら溶融混合して得られたエラストマー組成物と熱可塑性樹脂を混合する方法等も用いることが出来る。また、溶融混練後、直接成形品とすることもできる。
The method for producing the thermoplastic resin composition of the present invention is not particularly limited, and a known method can be used. For example, a melt kneading method using a general mixer such as a Banbury mixer, a single screw extruder, a two screw extruder, a conider, a multi-screw extruder, etc. A method of removing the solvent by heating after dispersion and the like is used, and a melt kneading method using an extruder is particularly preferred from the viewpoint of productivity and good kneading properties.
At that time, a method of melt kneading the thermoplastic resin as component (a) and optionally components (d) and (e) after kneading the modified elastomer of component (b) and the layered clay mineral of component (c) in advance Alternatively, a method of melting and kneading the component (a), the component (b), the component (c), and optionally the components (d) and (e) at the same time is used. Alternatively, the component (b), the component (c) and optionally the components (d) and (e) may be previously kneaded and then melt kneaded with the component (a). In addition, a layered clay mineral dispersed in water is added in a state in which the modified elastomer is dissolved in a hydrocarbon solvent, and then the elastomer composition from which water vapor has been stripped and the hydrocarbon solvent has been removed is passed through an extruder and water is added. A method of mixing an elastomer composition obtained by melt mixing while devolatilizing a thermoplastic resin and the like can also be used. Moreover, it can also be directly molded after melt-kneading.
本発明の熱可塑性樹脂組成物は、各種用途に用いることが出来る。本発明の熱可塑性樹脂組成物は、そのままで或いは各種添加剤を配合した組成物として、従来公知の方法、例えば、押出成形、射出成形、二色射出成形、サンドイッチ成形、中空成形、圧縮成形、真空成形、回転成形、パウダースラッシュ成形、発泡成形、積層成形、カレンダー成形、ブロー成形等によって、実用上有用な成形品に加工することができる。また、必要に応じて、発泡、粉末、延伸、接着、印刷、塗装、メッキ等の加工をしてもよい。かかる成形方法により、シート、フィルム、各種形状の射出成形品、中空成形品、圧空成型品、真空成形品、押出成形品、発泡成形品、不織布や繊維状の成形品等多種多様の成形品として活用できる。これらの成形品は、食品包装材料、医療用器具材料、家電製品及びその部品、電子デバイス及びその部品、自動車部品,工業部品,家庭用品,玩具等の素材、履物用素材などに利用できる。 The thermoplastic resin composition of the present invention can be used for various applications. The thermoplastic resin composition of the present invention is a conventional method such as extrusion molding, injection molding, two-color injection molding, sandwich molding, hollow molding, compression molding, as it is or as a composition containing various additives. It can be processed into a practically useful molded product by vacuum molding, rotational molding, powder slush molding, foam molding, laminate molding, calendar molding, blow molding, and the like. Moreover, you may process foaming, powder, extending | stretching, adhesion | attachment, printing, painting, plating, etc. as needed. By this molding method, various types of molded products such as sheets, films, injection molded products of various shapes, hollow molded products, compressed air molded products, vacuum molded products, extrusion molded products, foam molded products, nonwoven fabrics and fibrous molded products, etc. Can be used. These molded articles can be used for food packaging materials, medical instrument materials, home appliances and parts thereof, electronic devices and parts thereof, automobile parts, industrial parts, household goods, materials such as toys, footwear materials, and the like.
以下、実施例及び比較例により本発明を具体的に説明するが、本発明はこれらの例によって何ら限定されるものではない。
1.成分(b)変性エラストマーの特性
(1)スチレン含有量
紫外線分光光度計(日立UV200)を用いて、262nmの吸収強度より算出した。
(2)ビニル量、水添率
核磁気共鳴装置(BRUKER社製、DPX−400)を用いて測定した。
(3)分子量
GPC(装置:島津製作所社製LC10、カラム:島津製作所社製Shimpac GPC805+GPC804+GPC804+GPC803)で測定した。溶媒にはテトラヒドロフランを用い、測定条件は、温度35℃で行った。分子量は、クロマトグラムのピークの分子量を、市販の標準ポリスチレンの測定から求めた検量線(標準ポリスチレンのピーク分子量を使用して作成)を使用して求めた数平均分子量である。
EXAMPLES Hereinafter, although an Example and a comparative example demonstrate this invention concretely, this invention is not limited at all by these examples.
1. Characteristics of Component (b) Modified Elastomer (1) Styrene Content Calculated from the absorption intensity at 262 nm using an ultraviolet spectrophotometer (Hitachi UV200).
(2) Vinyl content and hydrogenation rate Measured using a nuclear magnetic resonance apparatus (manufactured by BRUKER, DPX-400).
(3) Molecular weight Measured by GPC (apparatus: LC10 manufactured by Shimadzu Corporation, column: Shimpac GPC805 + GPC804 + GPC804 + GPC803 manufactured by Shimadzu Corporation). Tetrahydrofuran was used as the solvent, and the measurement was performed at a temperature of 35 ° C. The molecular weight is a number average molecular weight obtained by using a calibration curve (created using the peak molecular weight of standard polystyrene) obtained by measuring the molecular weight of the peak of the chromatogram from measurement of commercially available standard polystyrene.
2.水添触媒の調製
水添反応に用いた水添触媒は、下記の方法で調製した。
(1)水添触媒
窒素置換した反応容器に乾燥、精製したシクロヘキサン1リットルを仕込み、
ビス(η5−シクロペンタジエニル)チタニウムジクロリド100ミリモルを添加し、十分に攪拌しながらトリメチルアルミニウム200ミリモルを含むn−ヘキサン溶液を添加して、室温にて約3日間反応させた。
2. Preparation of hydrogenation catalyst The hydrogenation catalyst used in the hydrogenation reaction was prepared by the following method.
(1) Hydrogenation catalyst 1 liter of dried and purified cyclohexane was charged into a nitrogen-substituted reaction vessel,
Bis (η5-cyclopentadienyl) titanium dichloride (100 mmol) was added, and an n-hexane solution containing 200 mmol of trimethylaluminum was added with sufficient stirring, followed by reaction at room temperature for about 3 days.
3.成分(b)変性エラストマーの調製
攪拌機及びジャケット付きのオ−トクレ−ブを洗浄、乾燥、窒素置換し、予め精製したスチレン16質量部を含むシクロヘキサン溶液(濃度20wt%)を投入した。次いでn−ブチルリチウムとテトラメチルエチレンジアミンを添加し、70℃で1時間重合した後、予め精製したブタジエン68質量部を含むシクロヘキサン溶液(濃度20wt%)を加えて70℃で1時間重合し、さらにスチレン16質量部を含むシクロヘキサン溶液を加えて70℃で1時間重合してブロック共重合体のリビングポリマーを得た。得られたブロック共重合体のリビングポリマーの溶液中に、ポリマー末端リチウムに対して、1倍molの1,3−ジメチルー2−イミダゾリジン添加し、70℃で20分間反応させて1次変性エラストマーを得た。
3. Preparation of Component (b) Modified Elastomer An autoclave with a stirrer and a jacket was washed, dried and purged with nitrogen, and a cyclohexane solution (concentration 20 wt%) containing 16 parts by mass of styrene purified in advance was added. Next, after adding n-butyllithium and tetramethylethylenediamine and polymerizing at 70 ° C. for 1 hour, a cyclohexane solution (concentration 20 wt%) containing 68 parts by mass of butadiene purified in advance is added and polymerized at 70 ° C. for 1 hour, A cyclohexane solution containing 16 parts by mass of styrene was added and polymerized at 70 ° C. for 1 hour to obtain a living polymer of a block copolymer. 1-fold mol of 1,3-dimethyl-2-imidazolidine is added to the polymer-terminated lithium in the living polymer solution of the obtained block copolymer and reacted at 70 ° C. for 20 minutes to give a primary modified elastomer. Got.
1次変性エラストマーの水添物は、上記の1次変性ブロック共重合体の溶液に水添触媒を100ppm添加し、水素圧0.7MPa、温度65℃で水添反応を1時間反応させて調整した。該1次変性エラストマーの水添物溶液にメタノールを、重合に使用したn−ブチルリチウムに対して10倍モル添加し、その後炭酸水を添加してPHを8以下に調整した。乾燥処理をして1次変性エラストマーの水添物を得た。得られた1次変性エラストマーは、スチレン−1,3−ブタジエン−スチレンからなるSBSタイプのブロック共重合体タイプで、片末端部にアミノ基が結合しており、スチレン含有量32wt%、ビニル結合32wt%、数平均分子量51000であった。又1次変性エラストマーの水添物の水素添加率は、75%であり、ビニル結合が完全に水添されたSBBSタイプのブロック共重合体であった。得られた一次変性エラストマーの片末端部濃度を数平均分子量から計算し、片末端部に対し、無水マレイン酸を2倍モルを添加して、30mmφ二軸押出機で220℃、スクリュー回転数100rpmで溶融混練しアミノ基末端部に無水マレイン酸が付加した水添変性エラストマーを得た。 The hydrogenated primary modified elastomer was prepared by adding 100 ppm of a hydrogenation catalyst to the above solution of the primary modified block copolymer and reacting the hydrogenation reaction at a hydrogen pressure of 0.7 MPa and a temperature of 65 ° C. for 1 hour. did. Methanol was added to the hydrogenated solution of the primary modified elastomer at a 10-fold molar ratio to n-butyllithium used for polymerization, and then carbonated water was added to adjust the pH to 8 or less. Drying treatment was performed to obtain a hydrogenated product of a primary modified elastomer. The obtained primary modified elastomer is an SBS type block copolymer type composed of styrene-1,3-butadiene-styrene, with an amino group bonded to one end, a styrene content of 32 wt%, and a vinyl bond. They were 32 wt% and the number average molecular weight 51000. The hydrogenation rate of the hydrogenated primary modified elastomer was 75%, and it was a SBBS type block copolymer in which the vinyl bond was completely hydrogenated. The concentration of one end portion of the obtained primary modified elastomer was calculated from the number average molecular weight, and 2 times mole of maleic anhydride was added to the one end portion, 220 ° C. with a 30 mmφ twin screw extruder, screw rotation speed 100 rpm. To obtain a hydrogenated modified elastomer in which maleic anhydride was added to the terminal end of the amino group.
4.未変性エラストマーの調整
1,3−ジメチルー2−イミダゾリジンを無添加としたこと以外は、全て上記3と同様に操作した。得られた未変性エラストマーは、スチレン含有量32wt%、ビニル結合32wt%、数平均分子量51000のものであった。又その水添物である未変性エラストマーの水素添加率は、95%であり、不飽和結合部が完全に水添されたSEBSタイプの変性ブロック共重合体(以下、未変性エラストマー)であった。
4). Preparation of unmodified elastomer All operations were performed in the same manner as in 3 above, except that 1,3-dimethyl-2-imidazolidine was not added. The resulting unmodified elastomer had a styrene content of 32 wt%, a vinyl bond of 32 wt%, and a number average molecular weight of 51,000. The hydrogenation rate of the unmodified elastomer as the hydrogenated product was 95%, and it was a SEBS type modified block copolymer (hereinafter, unmodified elastomer) in which the unsaturated bond portion was completely hydrogenated. .
5.熱可塑性樹脂組成物の性能評価
(ア)曲げ弾性率
JIS K7203に準拠し、曲げ速度2mm/minで測定した。
5. Performance evaluation of thermoplastic resin composition
(A) Flexural modulus Measured according to JIS K7203 at a bending speed of 2 mm / min.
(イ)アイゾッド衝撃強度
JIS K7110に準拠し、23℃で測定した。
(I) Izod impact strength Measured at 23 ° C. in accordance with JIS K7110.
[実施例1]
成分a)としてポリプロピレン(PM600A:サンアロマー社製)75重量部、成分b)として変性エラストマーが12.5重量部、成分(c)としてジメチルジアルキル(C18)アンモニウム・合成マイカ(商標名;ソマシフMAE、コープケミカル(株)製)5重量部、成分(d)としてエチレン−オクテン共重合体(エンゲージ8150:ダウ社製)12.5重量部とを、30mmφ二軸押出機で220℃、スクリュー回転数100rpmで溶融混練した。得られた熱可塑性樹脂組成物を射出成型して試験片を得、物性を測定した。
[Example 1]
Component a) is 75 parts by weight of polypropylene (PM600A: manufactured by Sun Allomer), Component b) is 12.5 parts by weight of modified elastomer, and Component (c) is dimethyldialkyl (C18) ammonium / synthetic mica (trade name; Somasif MAE, 5 parts by weight (manufactured by Coop Chemical Co., Ltd.) and 12.5 parts by weight of an ethylene-octene copolymer (engage 8150: manufactured by Dow) as the component (d) are 220 ° C. and screw rotation speed by a 30 mmφ twin screw extruder. Melt kneading was performed at 100 rpm. The obtained thermoplastic resin composition was injection molded to obtain a test piece, and the physical properties were measured.
[実施例2]
成分a)としてポリプロピレン(PM600A:サンアロマー社製)75重量部、成分b)として変性エラストマーが6.25重量部、成分(c)としてジメチルジアルキル(C18)アンモニウム・合成マイカ(商標名;ソマシフMAE、コープケミカル(株)製)2重量部、成分(d)としてエチレン−オクテン共重合体(エンゲージ8150ダウ社製)12.5重量部、成分(e)として未変性エラストマー6.25重量部とを、30mmφ二軸押出機で220℃、スクリュー回転数100rpmで溶融混練した。得られた熱可塑性樹脂組成物を射出成型して試験片を得、物性を測定した。
[Example 2]
Component a) is 75 parts by weight of polypropylene (PM600A: manufactured by Sun Allomer), Component b) is 6.25 parts by weight of modified elastomer, and Component (c) is dimethyldialkyl (C18) ammonium / synthetic mica (trade name; Somasif MAE, 2 parts by weight of Coop Chemical Co., Ltd., 12.5 parts by weight of an ethylene-octene copolymer (engaged 8150 Dow) as component (d), and 6.25 parts by weight of unmodified elastomer as component (e) The mixture was melt kneaded at 220 ° C. and a screw rotation speed of 100 rpm with a 30 mmφ twin screw extruder. The obtained thermoplastic resin composition was injection molded to obtain a test piece, and the physical properties were measured.
[比較例1]
成分(c)を除いた以外は、実施例1と同様の手法で熱可塑性樹脂組成物を作成し、射出成型して試験片を得、物性を測定した。
[Comparative Example 1]
A thermoplastic resin composition was prepared in the same manner as in Example 1 except that the component (c) was omitted, and a test piece was obtained by injection molding, and the physical properties were measured.
[比較例2]
成分a)としてポリプロピレン(PM600A:サンアロマー社製)75重量部、成分(d)としてエンゲージ8150(ダウ社製)12.5重量部、成分(e)として未変性エラストマー12.5重量部とを、30mmφ二軸押出機で220℃、スクリュー回転数100rpmで溶融混練した。得られた熱可塑性樹脂組成物を射出成型して試験片を得、物性を測定した。
表1に示すとおり、成分(b)、成分(c)を含む樹脂組成物は、曲げ弾性率が大幅に向上し、且つ衝撃強度も向上し、すなわち剛性と耐衝撃性が極めて高度にバランスする熱可塑性樹脂組成物が得られることがわかる。
[Comparative Example 2]
As component a), 75 parts by weight of polypropylene (PM600A: manufactured by Sun Allomer), 12.5 parts by weight of Engagement 8150 (manufactured by Dow) as component (d), and 12.5 parts by weight of unmodified elastomer as component (e), The mixture was melt-kneaded with a 30 mmφ twin screw extruder at 220 ° C. and a screw rotation speed of 100 rpm. The obtained thermoplastic resin composition was injection molded to obtain a test piece, and the physical properties were measured.
As shown in Table 1, the resin composition containing the component (b) and the component (c) has a significantly improved bending elastic modulus and improved impact strength, that is, the stiffness and the impact resistance are extremely balanced. It turns out that a thermoplastic resin composition is obtained.
Claims (8)
(b)共役ジエンからなる共役ジエン系重合体又はその水添物、共役ジエンとビニル芳香族炭化水素からなるランダム共重合体又はその水添物、共役ジエンとビニル芳香族炭化水素からなるブロック共重合体又はその水添物から選ばれる重合体の末端部に、官能基含有原子団が少なくとも1個結合している変性エラストマー1〜100重量部
(c)層状粘土鉱物が、(b)100重量部あたり、1〜60重量部
(d)オレフィン系ゴム状重合体0〜100重量部
(e)共役ジエンとビニル芳香族炭化水素からなるブロック共重合体又はその水添物から選ばれる少なくとも1種のエラストマー重合体0〜100重量部
からなる熱可塑性樹脂組成物。 (A) 100 parts by weight of thermoplastic resin (b) Conjugated diene polymer comprising conjugated diene or hydrogenated product thereof, random copolymer comprising conjugated diene and vinyl aromatic hydrocarbon or hydrogenated product thereof, conjugated diene 1 to 100 parts by weight of a modified elastomer in which at least one functional group-containing atomic group is bonded to a terminal part of a polymer selected from a block copolymer made of vinyl aromatic hydrocarbon or a hydrogenated product thereof (c) layered The clay mineral is (b) 1 to 60 parts by weight per 100 parts by weight. (D) 0 to 100 parts by weight of an olefinic rubbery polymer (e) a block copolymer consisting of a conjugated diene and a vinyl aromatic hydrocarbon or its A thermoplastic resin composition comprising 0 to 100 parts by weight of at least one elastomer polymer selected from hydrogenated products.
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