WO2022131340A1 - 熱可塑性ポリエステルエラストマー樹脂組成物、及び成形体 - Google Patents
熱可塑性ポリエステルエラストマー樹脂組成物、及び成形体 Download PDFInfo
- Publication number
- WO2022131340A1 WO2022131340A1 PCT/JP2021/046573 JP2021046573W WO2022131340A1 WO 2022131340 A1 WO2022131340 A1 WO 2022131340A1 JP 2021046573 W JP2021046573 W JP 2021046573W WO 2022131340 A1 WO2022131340 A1 WO 2022131340A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- polyester elastomer
- thermoplastic polyester
- silicone
- resin composition
- aliphatic
- Prior art date
Links
- 229920006346 thermoplastic polyester elastomer Polymers 0.000 title claims abstract description 79
- 239000011342 resin composition Substances 0.000 title claims abstract description 37
- 229920006243 acrylic copolymer Polymers 0.000 claims abstract description 50
- 125000001931 aliphatic group Chemical group 0.000 claims abstract description 36
- 239000006185 dispersion Substances 0.000 claims abstract description 21
- 229920000515 polycarbonate Polymers 0.000 claims abstract description 17
- 239000004417 polycarbonate Substances 0.000 claims abstract description 17
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000011159 matrix material Substances 0.000 claims abstract description 13
- 229920000728 polyester Polymers 0.000 claims abstract description 11
- 125000003118 aryl group Chemical group 0.000 claims abstract description 10
- 229920000570 polyether Polymers 0.000 claims abstract description 10
- 229920003232 aliphatic polyester Polymers 0.000 claims abstract description 9
- 229920000058 polyacrylate Polymers 0.000 claims description 19
- 229920001296 polysiloxane Polymers 0.000 claims description 15
- 230000004580 weight loss Effects 0.000 claims description 15
- 238000002411 thermogravimetry Methods 0.000 claims description 13
- 238000001746 injection moulding Methods 0.000 claims description 12
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 8
- 229920000578 graft copolymer Polymers 0.000 claims description 6
- 229920001971 elastomer Polymers 0.000 claims 2
- 239000000806 elastomer Substances 0.000 claims 2
- 229920001169 thermoplastic Polymers 0.000 claims 1
- 239000004416 thermosoftening plastic Substances 0.000 claims 1
- -1 alicyclic diol Chemical class 0.000 abstract description 29
- 229920005573 silicon-containing polymer Polymers 0.000 abstract description 7
- 239000000470 constituent Substances 0.000 abstract description 4
- 239000004615 ingredient Substances 0.000 abstract 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 38
- 239000002245 particle Substances 0.000 description 26
- 239000000047 product Substances 0.000 description 26
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 18
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 16
- 239000000314 lubricant Substances 0.000 description 13
- 239000000203 mixture Substances 0.000 description 13
- VSPBJCAGAJBGKS-UHFFFAOYSA-N Charine Chemical compound OC1=NC(N)=NC(N)=C1OC1C(O)C(O)C(O)CO1 VSPBJCAGAJBGKS-UHFFFAOYSA-N 0.000 description 12
- WEXXMKKKIYDELC-UHFFFAOYSA-N charine Natural products Nc1nc(N)c(OC2OC(CO)C(O)C2O)c(O)n1 WEXXMKKKIYDELC-UHFFFAOYSA-N 0.000 description 12
- 238000000034 method Methods 0.000 description 12
- 229920005989 resin Polymers 0.000 description 11
- 239000011347 resin Substances 0.000 description 11
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 10
- 229920001577 copolymer Polymers 0.000 description 9
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 8
- 150000002009 diols Chemical class 0.000 description 8
- 238000000465 moulding Methods 0.000 description 8
- 239000002253 acid Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 5
- 238000002844 melting Methods 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- YPFDHNVEDLHUCE-UHFFFAOYSA-N propane-1,3-diol Chemical compound OCCCO YPFDHNVEDLHUCE-UHFFFAOYSA-N 0.000 description 5
- BJZYYSAMLOBSDY-QMMMGPOBSA-N (2s)-2-butoxybutan-1-ol Chemical compound CCCCO[C@@H](CC)CO BJZYYSAMLOBSDY-QMMMGPOBSA-N 0.000 description 4
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 4
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- 239000011362 coarse particle Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 230000009477 glass transition Effects 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 3
- 239000003963 antioxidant agent Substances 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 3
- 125000004432 carbon atom Chemical group C* 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000002845 discoloration Methods 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000004898 kneading Methods 0.000 description 3
- RXOHFPCZGPKIRD-UHFFFAOYSA-N naphthalene-2,6-dicarboxylic acid Chemical compound C1=C(C(O)=O)C=CC2=CC(C(=O)O)=CC=C21 RXOHFPCZGPKIRD-UHFFFAOYSA-N 0.000 description 3
- 229920001451 polypropylene glycol Polymers 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 230000002087 whitening effect Effects 0.000 description 3
- QPFMBZIOSGYJDE-UHFFFAOYSA-N 1,1,2,2-tetrachloroethane Chemical compound ClC(Cl)C(Cl)Cl QPFMBZIOSGYJDE-UHFFFAOYSA-N 0.000 description 2
- ALVZNPYWJMLXKV-UHFFFAOYSA-N 1,9-Nonanediol Chemical compound OCCCCCCCCCO ALVZNPYWJMLXKV-UHFFFAOYSA-N 0.000 description 2
- SXFJDZNJHVPHPH-UHFFFAOYSA-N 3-methylpentane-1,5-diol Chemical compound OCCC(C)CCO SXFJDZNJHVPHPH-UHFFFAOYSA-N 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- YIMQCDZDWXUDCA-UHFFFAOYSA-N [4-(hydroxymethyl)cyclohexyl]methanol Chemical compound OCC1CCC(CO)CC1 YIMQCDZDWXUDCA-UHFFFAOYSA-N 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 239000011258 core-shell material Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 229940008099 dimethicone Drugs 0.000 description 2
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 2
- 239000004205 dimethyl polysiloxane Substances 0.000 description 2
- HJUFTIJOISQSKQ-UHFFFAOYSA-N fenoxycarb Chemical compound C1=CC(OCCNC(=O)OCC)=CC=C1OC1=CC=CC=C1 HJUFTIJOISQSKQ-UHFFFAOYSA-N 0.000 description 2
- 239000003063 flame retardant Substances 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
- 239000004611 light stabiliser Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- KYTZHLUVELPASH-UHFFFAOYSA-N naphthalene-1,2-dicarboxylic acid Chemical compound C1=CC=CC2=C(C(O)=O)C(C(=O)O)=CC=C21 KYTZHLUVELPASH-UHFFFAOYSA-N 0.000 description 2
- BDJRBEYXGGNYIS-UHFFFAOYSA-N nonanedioic acid Chemical compound OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 description 2
- OEIJHBUUFURJLI-UHFFFAOYSA-N octane-1,8-diol Chemical compound OCCCCCCCCO OEIJHBUUFURJLI-UHFFFAOYSA-N 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 2
- 229920001610 polycaprolactone Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000002994 raw material Substances 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
- 239000000126 substance Substances 0.000 description 2
- 238000005979 thermal decomposition reaction Methods 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- KMOUUZVZFBCRAM-OLQVQODUSA-N (3as,7ar)-3a,4,7,7a-tetrahydro-2-benzofuran-1,3-dione Chemical compound C1C=CC[C@@H]2C(=O)OC(=O)[C@@H]21 KMOUUZVZFBCRAM-OLQVQODUSA-N 0.000 description 1
- RTBFRGCFXZNCOE-UHFFFAOYSA-N 1-methylsulfonylpiperidin-4-one Chemical compound CS(=O)(=O)N1CCC(=O)CC1 RTBFRGCFXZNCOE-UHFFFAOYSA-N 0.000 description 1
- QFGCFKJIPBRJGM-UHFFFAOYSA-N 12-[(2-methylpropan-2-yl)oxy]-12-oxododecanoic acid Chemical class CC(C)(C)OC(=O)CCCCCCCCCCC(O)=O QFGCFKJIPBRJGM-UHFFFAOYSA-N 0.000 description 1
- QPBYBLZYMNWGMO-UHFFFAOYSA-N 2,2,3-trimethyloxirane Chemical compound CC1OC1(C)C QPBYBLZYMNWGMO-UHFFFAOYSA-N 0.000 description 1
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- OJRJDENLRJHEJO-UHFFFAOYSA-N 2,4-diethylpentane-1,5-diol Chemical compound CCC(CO)CC(CC)CO OJRJDENLRJHEJO-UHFFFAOYSA-N 0.000 description 1
- GOXQRTZXKQZDDN-UHFFFAOYSA-N 2-Ethylhexyl acrylate Chemical compound CCCCC(CC)COC(=O)C=C GOXQRTZXKQZDDN-UHFFFAOYSA-N 0.000 description 1
- SDQROPCSKIYYAV-UHFFFAOYSA-N 2-methyloctane-1,8-diol Chemical compound OCC(C)CCCCCCO SDQROPCSKIYYAV-UHFFFAOYSA-N 0.000 description 1
- WSQZNZLOZXSBHA-UHFFFAOYSA-N 3,8-dioxabicyclo[8.2.2]tetradeca-1(12),10,13-triene-2,9-dione Chemical group O=C1OCCCCOC(=O)C2=CC=C1C=C2 WSQZNZLOZXSBHA-UHFFFAOYSA-N 0.000 description 1
- RWHRFHQRVDUPIK-UHFFFAOYSA-N 50867-57-7 Chemical compound CC(=C)C(O)=O.CC(=C)C(O)=O RWHRFHQRVDUPIK-UHFFFAOYSA-N 0.000 description 1
- JTHZUSWLNCPZLX-UHFFFAOYSA-N 6-fluoro-3-methyl-2h-indazole Chemical compound FC1=CC=C2C(C)=NNC2=C1 JTHZUSWLNCPZLX-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 102100027988 GTP-binding protein Rhes Human genes 0.000 description 1
- 101000578396 Homo sapiens GTP-binding protein Rhes Proteins 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- ALQSHHUCVQOPAS-UHFFFAOYSA-N Pentane-1,5-diol Chemical compound OCCCCCO ALQSHHUCVQOPAS-UHFFFAOYSA-N 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000003917 TEM image Methods 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- BAPJBEWLBFYGME-UHFFFAOYSA-N acrylic acid methyl ester Natural products COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- JFCQEDHGNNZCLN-UHFFFAOYSA-N anhydrous glutaric acid Natural products OC(=O)CCCC(O)=O JFCQEDHGNNZCLN-UHFFFAOYSA-N 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 1
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 description 1
- 239000012965 benzophenone Substances 0.000 description 1
- 229920001400 block copolymer Polymers 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- QYQADNCHXSEGJT-UHFFFAOYSA-N cyclohexane-1,1-dicarboxylate;hydron Chemical compound OC(=O)C1(C(O)=O)CCCCC1 QYQADNCHXSEGJT-UHFFFAOYSA-N 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000539 dimer Substances 0.000 description 1
- KHAYCTOSKLIHEP-UHFFFAOYSA-N docosyl prop-2-enoate Chemical compound CCCCCCCCCCCCCCCCCCCCCCOC(=O)C=C KHAYCTOSKLIHEP-UHFFFAOYSA-N 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000006081 fluorescent whitening agent Substances 0.000 description 1
- 238000010097 foam moulding Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical compound CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
- 238000010191 image analysis Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000001023 inorganic pigment Substances 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002596 lactones Chemical class 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000006078 metal deactivator Substances 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000002667 nucleating agent Substances 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 239000012860 organic pigment Substances 0.000 description 1
- 239000012285 osmium tetroxide Substances 0.000 description 1
- 229910000489 osmium tetroxide Inorganic materials 0.000 description 1
- UHHKSVZZTYJVEG-UHFFFAOYSA-N oxepane Chemical compound C1CCCOCC1 UHHKSVZZTYJVEG-UHFFFAOYSA-N 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 239000002530 phenolic antioxidant Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920000166 polytrimethylene carbonate Polymers 0.000 description 1
- 229910001927 ruthenium tetroxide Inorganic materials 0.000 description 1
- JZWFDVDETGFGFC-UHFFFAOYSA-N salacetamide Chemical group CC(=O)NC(=O)C1=CC=CC=C1O JZWFDVDETGFGFC-UHFFFAOYSA-N 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 238000005809 transesterification reaction Methods 0.000 description 1
- 150000003852 triazoles Chemical class 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
- C08L67/03—Polyesters derived from dicarboxylic acids and dihydroxy compounds the dicarboxylic acids and dihydroxy compounds having the carboxyl- and the hydroxy groups directly linked to aromatic rings
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
- C08L67/025—Polyesters derived from dicarboxylic acids and dihydroxy compounds containing polyether sequences
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/10—Block- or graft-copolymers containing polysiloxane sequences
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/42—Block-or graft-polymers containing polysiloxane sequences
- C08G77/442—Block-or graft-polymers containing polysiloxane sequences containing vinyl polymer sequences
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/56—Non-aqueous solutions or dispersions
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/30—Applications used for thermoforming
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/04—Thermoplastic elastomer
Definitions
- the present invention relates to a thermoplastic polyester elastomer resin composition capable of obtaining a molded product having a good appearance and extremely excellent wear resistance.
- a method of adding a long-chain organic acid compound such as an organic acid ester, an organic acid salt, or an organic acid amide or a silicone oil is known as a lubricant.
- a lubricant in order to improve the wear resistance of the resin composition, a method of adding a long-chain organic acid compound such as an organic acid ester, an organic acid salt, or an organic acid amide or a silicone oil.
- a soft composition having a durometer type D hardness of 60 or less it is necessary to add a large amount of lubricant in order to exhibit sufficient wear resistance.
- the dispersibility of the lubricant is not good and the compatibility with the resin is not perfect. Therefore, the lubricant separates and gathers near the surface over time, and problems such as bleeding and bloom are likely to occur. ..
- long-chain organic acid compounds are liable to change in quality at high temperatures, and have a problem that discoloration or foreign matter called discoloration or kogation is liable to occur during melt molding
- Patent Document 1 discloses an invention relating to a thermoplastic elastomer composition containing an epoxy-based thickener containing a silicone-modified (meth) acrylic polymer and styrene with respect to the thermoplastic polyester elastomer.
- Patent Document 1 proposes to blend a silicone-modified acrylic polymer in order to solve the above problems, but the appearance of a molded product made of a thermoplastic polyester elastomer composition is not sufficiently satisfactory. Do you get it.
- An object of the present invention is to provide a thermoplastic polyester elastomer resin composition capable of obtaining a molded product having a further good appearance and extremely excellent wear resistance, and a molded product made of the thermoplastic polyester elastomer resin composition.
- the present inventor has found that by blending a specific silicone-acrylic copolymer with a thermoplastic polyester elastomer in order to achieve the above object, both appearance and wear resistance can be achieved, and the present invention is completed. It came to.
- the present invention has the following configurations (1) to (4).
- a hard segment composed of an aromatic dicarboxylic acid and a polyester containing an aliphatic and / or an alicyclic diol as a constituent, and at least one soft segment selected from an aliphatic polyether, an aliphatic polyester and an aliphatic polycarbonate.
- a thermoplastic polyester elastomer resin composition containing the thermoplastic polyester elastomer (A) and the silicone-acrylic copolymer (B) to which the thermoplastic polyester elastomer resin is bonded, and obtained by injection molding the thermoplastic polyester elastomer resin composition.
- thermoplastic polyester elastomer characterized in that the average dispersion area of the silicone-acrylic copolymer (B) dispersed in the thermoplastic polyester elastomer (A) forming the matrix is 0.3 ⁇ m 2 or less in the molded product. Resin composition.
- the silicone-acrylic copolymer (B) is characterized in that the main skeleton is silicone and the main skeleton is a graft copolymer having an acrylic polymer bonded in a side chain shape (1). ).
- the thermoplastic polyester elastomer resin composition (3)
- the silicone-acrylic copolymer (B) is characterized in that the weight loss rate at 250 ° C. measured by thermogravimetric analysis (TGA) is 3.3% or more (1) or (2).
- thermoplastic polyester elastomer resin composition according to. (4) A hard segment composed of an aromatic dicarboxylic acid and a polyester containing an aliphatic and / or alicyclic diol as a constituent, and at least one soft segment selected from an aliphatic polyether, an aliphatic polyester and an aliphatic polycarbonate. It is a molded body obtained from a thermoplastic polyester elastomer resin composition containing a thermoplastic polyester elastomer (A) and a silicone-acrylic copolymer (B) to which the above-mentioned substances are bonded, and forms a matrix in the molded body. A molded product having an average dispersion area of 0.3 ⁇ m 2 or less of the silicone-acrylic copolymer (B) dispersed in the thermoplastic polyester elastomer (A).
- thermoplastic polyester elastomer resin composition of the present invention has good moldability, and the molded product obtained from the thermoplastic polyester elastomer resin composition has a good appearance and is extremely excellent in wear resistance. It can also be suitably used for members that are repeatedly worn, such as automobile interior parts.
- thermoplastic polyester elastomer resin composition of the present invention is a thermoplastic polyester elastomer resin composition containing a thermoplastic polyester elastomer (A) and a silicone-acrylic copolymer (B), and the thermoplastic polyester elastomer resin composition.
- the average dispersion area of the silicone-acrylic copolymer (B) dispersed in the thermoplastic polyester elastomer (A) forming the matrix is 0.3 ⁇ m 2 or less in the molded product obtained by injection molding.
- the thermoplastic polyester elastomer (A) is selected from a hard segment composed of an aromatic dicarboxylic acid and a polyester containing an aliphatic and / or an aliphatic diol, and an aliphatic polyether, an aliphatic polyester and an aliphatic polycarbonate. At least one soft segment is combined.
- the thermoplastic polyester elastomer (A) is a group consisting of a hard segment composed of a crystalline polyester composed of an aromatic dicarboxylic acid and an aliphatic or alicyclic diol, and an aliphatic polyether, an aliphatic polyester and an aliphatic polycarbonate.
- At least one soft segment selected from the above is the main constituent component, and the content of the soft segment component is preferably 95 to 5% by mass.
- the content of the soft segment component is more preferably 90 to 10% by mass, further preferably 85 to 15% by mass, and particularly preferably 75 to 25% by mass.
- the thermoplastic polyester elastomer (A) may be adjusted so as to have the above-mentioned soft segment content by using two or more kinds of thermoplastic polyester elastomers (A) having different contents of soft segment components in combination.
- thermoplastic polyester elastomer (A) an ordinary aromatic dicarboxylic acid is widely used as the aromatic dicarboxylic acid constituting the polyester of the hard segment, and the main aromatic dicarboxylic acid is terephthalic acid or naphthalenedicarboxylic acid. Is desirable.
- the naphthalene dicarboxylic acid is preferably 2,6-naphthalenedicarboxylic acid.
- Other acid components include aromatic dicarboxylic acids such as diphenyldicarboxylic acid, isophthalic acid and 5-sodium sulfoisophthalic acid, alicyclic dicarboxylic acids such as cyclohexanedicarboxylic acid and tetrahydrophthalic anhydride, succinic acid, glutaric acid and adipine.
- aromatic dicarboxylic acids such as diphenyldicarboxylic acid, isophthalic acid and 5-sodium sulfoisophthalic acid
- alicyclic dicarboxylic acids such as cyclohexanedicarboxylic acid and tetrahydrophthalic anhydride
- succinic acid glutaric acid and adipine
- Examples thereof include aliphatic dicarboxylic acids such as acid, azelaic acid, sebacic acid, dodecanedioic acid, dimer acid and hydrogenated dimer acid. These are used within a range that does
- the aliphatic or alicyclic diol constituting the polyester of the hard segment is widely used as a general aliphatic or alicyclic diol, and is not particularly limited, but mainly has 2 to 8 carbon atoms. It is desirable that they are alkylene glycols. Specific examples thereof include ethylene glycol, 1,3-propylene glycol, 1,4-butanediol, 1,6-hexanediol, and 1,4-cyclohexanedimethanol. Most preferred are 1,4-butanediol and 1,4-cyclohexanedimethanol.
- the components constituting the above-mentioned hard segment polyester include butylene terephthalate unit (unit consisting of terephthalic acid and 1,4-butanediol) or butylene naphthalate unit (2,6-naphthalenedicarboxylic acid and 1,4-butanediol).
- a unit consisting of (a unit consisting of) is preferable in terms of physical properties, formability, and cost performance.
- the soft segment of the thermoplastic polyester elastomer (A) used in the present invention is at least one selected from aliphatic polyethers, aliphatic polyesters, and aliphatic polycarbonates.
- Examples of the aliphatic polyether include poly (ethylene oxide) glycol, poly (propylene oxide) glycol, poly (tetramethylene oxide) glycol, poly (hexamethylene oxide) glycol, poly (trimethylethylene oxide) glycol, and both ethylene oxide and propylene oxide.
- Examples include polymers, ethylene oxide adducts of poly (propylene oxide) glycols, and copolymers of ethylene oxide and tetrahydrofuran. Among these, ethylene oxide adducts of poly (tetramethylene oxide) glycol and poly (propylene oxide) glycol are preferable from the viewpoint of elastic properties.
- Examples of the aliphatic polyester include poly ( ⁇ -caprolactone), polyenant lactone, polycaprilolactone, and polybutylene adipate.
- poly ( ⁇ -caprolactone) and polybutylene adipate are preferable from the viewpoint of elastic properties.
- the aliphatic polycarbonate is preferably composed mainly of aliphatic diol residues having 2 to 12 carbon atoms.
- these aliphatic diols include ethylene glycol, 1,3-propylene glycol, 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol, 1,8-octanediol, and 2, 2-Diol-1,3-propanediol, 3-methyl-1,5-pentanediol, 2,4-diethyl-1,5-pentanediol, 1,9-nonanediol, 2-methyl-1,8- Examples include octanediol.
- thermoplastic polyester elastomer an aliphatic diol having 5 to 12 carbon atoms is preferable from the viewpoint of the flexibility and low temperature characteristics of the obtained thermoplastic polyester elastomer.
- these components may be used alone or in combination of two or more, if necessary, based on the cases described below.
- an aliphatic polycarbonate diol having good low temperature characteristics which constitutes the soft segment of the thermoplastic polyester elastomer (A) used in the present invention
- one having a low melting point for example, 70 ° C. or lower
- a low glass transition temperature is used.
- an aliphatic polycarbonate diol composed of 1,6-hexanediol used for forming a soft segment of a thermoplastic polyester elastomer has a low glass transition temperature of about -60 ° C and a melting point of about 50 ° C. Good low temperature characteristics.
- the aliphatic polycarbonate diol obtained by copolymerizing the above aliphatic polycarbonate diol with, for example, an appropriate amount of 3-methyl-1,5-pentanediol has a glass transition point with respect to the original aliphatic polycarbonate diol.
- the melting point is lowered or becomes amorphous, it corresponds to an aliphatic polycarbonate diol having good low temperature characteristics.
- the aliphatic polycarbonate diol composed of 1,9-nonane diol and 2-methyl-1,8-octane diol has a melting point of about 30 ° C. and a glass transition temperature of about ⁇ 70 ° C., which are sufficiently low.
- thermoplastic polyester elastomer (A) used in the present invention an aliphatic polyether is preferable from the viewpoint of solving the problem of the present invention.
- thermoplastic polyester elastomer (A) used in the present invention is preferably a copolymer containing terephthalic acid, 1,4-butanediol, and poly (tetramethylene oxide) glycol as main components.
- terephthalic acid is preferably 40 mol% or more, more preferably 70 mol% or more, still more preferably 80 mol% or more. It is particularly preferably 90 mol% or more.
- the total of 1,4-butanediol and poly (tetramethylene oxide) glycol is preferably 40 mol% or more, more preferably 70 mol% or more. It is more preferably 80 mol% or more, and particularly preferably 90 mol% or more.
- the number average molecular weight of the poly (tetramethylene oxide) glycol is preferably 500 to 4000. If the number average molecular weight is less than 500, it may be difficult to develop elastomeric properties. On the other hand, when the number average molecular weight exceeds 4000, the compatibility with the hard segment component is lowered, and it may be difficult to copolymerize in a block shape.
- the number average molecular weight of the poly (tetramethylene oxide) glycol is more preferably 800 or more and 3000 or less, and further preferably 1000 or more and 2500 or less.
- the reducing viscosity of the thermoplastic polyester elastomer (A) is preferably 0.5 to 3.5 dl / g, more preferably 1.0 to 3.0 dl / g, from the viewpoint of maximizing the effect of the present invention.
- the thermoplastic polyester elastomer (A) can be produced by a conventionally known method. For example, a method of transesterifying a lower alcohol diester of a dicarboxylic acid, an excess amount of low molecular weight glycol, and a soft segment component in the presence of a catalyst to transesterify the resulting reaction product, a dicarboxylic acid and an excess amount of glycol and soft. A method can be adopted in which the segment components are subjected to a transesterification reaction in the presence of a catalyst and the obtained reaction product is polycondensed.
- the silicone-acrylic copolymer (B) has a structure containing at least one silicone (polysiloxane) moiety and at least one (meth) acrylic acid polymer moiety.
- the copolymer having such a structure include a copolymer (trade name: KP578) manufactured by Shinetsu Silicone Co., Ltd. (Acrylate / ethylhexyl acrylate / methacrylic acid methacrylate) and a wax type (Acrylate / stearyl acrylate / methacrylic acid).
- Dimethicone) copolymer (trade name: KP561P), (Acrylate / behenyl acrylate / dimethicone methacrylate) copolymer (KP562P), Charine of Nissin Chemical Industry Co., Ltd., etc. are known to have various structures and properties.
- the silicone-acrylic copolymer (B) is a graft copolymer having a main skeleton of silicone (polysiloxane) and a side chain of acrylic polymer bonded to the main skeleton.
- the acrylic polymer portion having excellent compatibility with the resin on the matrix side becomes a branched chain, and it is difficult to bleed out because the entanglement with the resin is improved, and the dispersibility during kneading is improved. Excellent.
- Acrylic polymers are (co) polymers of (meth) acrylic acid esters and / or (meth) acrylic acid hydroxyalkyl esters.
- the number of starting points of the graft of the acrylic polymer can be adjusted by appropriately blending a silane monomer having an unsaturated group.
- both the polysiloxane portion and the acrylic polymer portion may be linear or branched.
- the (meth) acrylic acid ester and the (meth) acrylic acid hydroxyalkyl ester may be used in combination, or only one of them may be used.
- the silicone-acrylic copolymer (B) may be partially modified or may have a core-shell form.
- the higher the ratio of the silicone (polysiloxane) portion the better the slidability of the composition, while the higher the ratio of the acrylic polymer, the better the composition. It tends to be more dispersible to.
- the polymerization ratio (silicone / acrylic polymer) of the silicone to the acrylic polymer is preferably 5/95 to 85/15, more preferably 30/70 to 80/20 in terms of mass ratio. More preferably, 60/40 to 75/25.
- the silicone-acrylic copolymer (B) When the silicone-acrylic copolymer (B) is solid at room temperature (23 ° C.), it is preferably granular.
- the area-based average particle size of the particles is preferably 0.5 to 120 ⁇ m, more preferably 1 to 100 ⁇ m, still more preferably 5 to 80 ⁇ m, still more preferably 20 to 50 ⁇ m.
- the shape of the particles can be directly observed by observing with an electron microscope. By selecting at least 30 arbitrary particles, measuring the major and minor diameters, standardizing them into ellipses, and calculating the cross-sectional area, the average of the area reference The particle size can be calculated.
- the silicone-acrylic copolymer (B) When the silicone-acrylic copolymer (B) has such a particle shape, it can be easily handled as a pellet or a powder raw material, but when kneaded into the composition of the present invention, it has dispersibility. Since it is good, it quickly disperses in the composition and brings good slidability to the composition.
- the average dispersion area of the silicone-acrylic copolymer (B) dispersed in the thermoplastic polyester elastomer (A) forming the matrix is The means for satisfying that it is 0.3 ⁇ m 2 or less will be described.
- Injection molding is a molding method in which a large orientation occurs in the shear alignment layer.
- the domain (particle) is stretched at the time of injection, and the domain size of the molded product tends to gradually decrease toward the surface layer.
- the surface energy difference between the matrix (resin) and the domain (particle) is large, the domain (particle) is stretched at the time of injection, but the solidification rate is slow (the temperature lowering crystallization temperature / Tc2 is low).
- the domains are likely to reaggregate. Therefore, in the case of a domain having a long molecular chain and a large surface energy (large energy difference from the resin), it is easy to return to the original size, and appearance defects are likely to occur without fine dispersion. Therefore, in order to improve the compatibility with the resin (reduce the energy difference) and to loosen and finely disperse the core-shell structure of the particles during injection molding, it is desirable that the particles have a low molecular weight.
- the molecular weight of the silicone-acrylic copolymer (B) is preferably small from the viewpoint of the effect of facilitating fine dispersion and improving wear resistance. If the molecular weight of the silicone-acrylic copolymer (B) is too large, the dispersibility of the silicone-acrylic copolymer (B) becomes non-uniform, and particles having coarse particle size tend to remain, and the silicone present on the surface of the molded product. -The particle ratio of the acrylic copolymer (B) is lowered, and the effect of improving the wear resistance itself tends to be difficult to be exhibited. Further, an increase in the number of particles having a coarse particle size and an increase in the average dispersion area cause an appearance defect such as whitening in the molded product.
- the main skeleton is silicone (polysiloxane), and the graft copolymers having a structure in which an acrylic polymer is bonded to the main skeleton in a side chain form include Charine R-175S, Charine R-170S, and Charine manufactured by Nisshin Kagaku Kogyo. There are R-170HS and so on. Even for graft copolymers having the same composition, the measure of molecular weight is very important as explained above. As a measure of this molecular weight, the rate of weight loss at 250 ° C. as measured by thermogravimetric analysis (TGA) is used.
- TGA thermogravimetric analysis
- the softening point is shown near 100 ° C. and the thermal decomposition temperature is shown near 250 ° C., so the difference in molecular weight can be easily grasped from the weight loss rate at these temperatures. It is possible to do.
- Table 1 shows the weight loss rate (%) at each temperature as a result of thermogravimetric analysis (TGA) for Charine R-175S, Charine R-170S, and Charine R-170HS.
- TGA thermogravimetric analysis
- the weight loss rate at 100 ° C. was 0.9% for R-175S, 0.6% for R-170S, and 0.5% for R-170HS.
- the molecular weight of R-175S was the lowest, and the order of molecular weight was as follows. Can be said to be R-175S ⁇ R-170S ⁇ R-170HS.
- the weight loss rate at 250 ° C. was 3.5% for R-175S, 3.2% for R-170S, and 3.2% for R-170HS, and the molecular weight of R-175S was the lowest and the molecular weight was the lowest. It can be said that the order is R-175S ⁇ R-170S ⁇ R-170HS.
- the silicone-acrylic copolymer (B) used in the present invention preferably has a weight loss rate of 3.3% or more at 250 ° C. as measured by thermogravimetric analysis (TGA).
- the weight loss rate is more preferably 3.4% or more, and further preferably 3.5% or more.
- the upper limit of the weight loss rate at 250 ° C. is about 4.0%.
- the content of the silicone-acrylic copolymer (B) is preferably 1 to 20 parts by mass, more preferably 1.5 to 15 parts by mass, and 2 to 2 to 100 parts by mass with respect to 100 parts by mass of the thermoplastic polyester elastomer (A). 12 parts by mass is more preferable.
- lubricants may be used in combination with the silicone-acrylic copolymer (B). Since the silicone-acrylic copolymer (B) is familiar not only with the resin component but also with any lubricant such as an organic silicone-based lubricant, problems such as bleeding and discoloration due to other lubricants can be suppressed. However, if the amount of other lubricants is too large, the effect of the silicone-acrylic copolymer (B) becomes small. Therefore, the amount used when the other lubricants are used in combination is 100 parts by mass of the silicone-acrylic copolymer (B). On the other hand, 90 parts by mass or less is preferable, and 5 to 70 parts by mass is more preferable. It is also a preferred embodiment that it does not contain other lubricants.
- additives can be added to the thermoplastic polyester elastomer resin composition of the present invention according to the purpose as long as the effects of the present invention are not impaired.
- additives known hindered phenol-based, sulfur-based, phosphorus-based, amine-based antioxidants, hindered amine-based, triazole-based, benzophenone-based, benzoate-based, nickel-based, salicyl-based, and other light stabilizers, antistatic agents.
- lubricants such as peroxides, compounds having reactive groups such as epoxy compounds, isocyanate compounds, and carbodiimide compounds (compounding agents)
- molecular modifiers such as peroxides, compounds having reactive groups such as epoxy compounds, isocyanate compounds, and carbodiimide compounds (compounding agents)
- Metal deactivators organic and inorganic nucleating agents, neutralizing agents, antioxidants, antibacterial agents, fluorescent whitening agents, fillers, flame retardants, flame retardant aids, organic and inorganic pigments, etc.
- the total amount of these additives can be added in the range of 10 parts by mass or less with respect to 100 parts by mass of the thermoplastic polyester elastomer (A).
- the silicone-acrylic copolymer (B) in the thermoplastic polyester elastomer (A) forming the matrix it is preferable to include a compatibilizer.
- the compatibilizer is preferably 0.5 to 3 parts by mass with respect to 100 parts by mass of the thermoplastic polyester elastomer (A).
- thermoplastic polyester elastomer resin composition of the present invention each component such as the thermoplastic polyester elastomer (A) and the silicone-acrylic copolymer (B) is mixed in a predetermined blending ratio and then melt-kneaded. Just do it.
- a Henschel mixer, a ribbon blender, a V-type blender or the like can be used for mixing, and a Banbury mixer, a kneader type heater, a single-screw or twin-screw melt kneading extruder or the like can be used for melt kneading.
- the MFR (g / 10 min) of the thermoplastic polyester elastomer resin composition of the present invention is not particularly limited in order to be applicable to a wide range of molding methods.
- the average dispersion area of the silicone-acrylic copolymer (B) dispersed in the thermoplastic polyester elastomer (A) forming the matrix is Satisfy that it is 0.3 ⁇ m 2 or less.
- the method for measuring the average dispersion area of the silicone-acrylic copolymer (B) is as described in Examples described later.
- the average dispersion area of the silicone-acrylic copolymer (B) is preferably 0.25 ⁇ m 2 or less, and more preferably 0.2 ⁇ m 2 or less.
- the lower limit of the average dispersion area of the silicone-acrylic copolymer (B) is about 0.005 ⁇ m 2 , but it is preferably 0.05 ⁇ m 2 or more in consideration of various production conditions.
- thermoplastic polyester elastomer resin composition of the present invention is not specified, and can be suitably used in injection molding, blow molding, extrusion molding, foam molding, profile molding, calendar molding, and various other molding methods. Of these, injection molding is preferable.
- thermoplastic polyester elastomer (A) An average of silicone-acrylic copolymers (B) dispersed in the thermoplastic polyester elastomer (A) forming a matrix in the molded product obtained from the thermoplastic polyester elastomer resin composition described above.
- a molded product having a dispersion area of 0.3 ⁇ m 2 or less is also one of the present inventions.
- the molded product made of the thermoplastic polyester elastomer resin composition of the present invention is produced as described above, the molded product has a good appearance and good wear resistance. Therefore, the molded product of the present invention can be suitably used for a member that is repeatedly worn, such as an automobile interior portion. Further, when the molded body has a grain, more suitable wear resistance is exhibited.
- the photographed image was image-analyzed using Nikon NIS-Elements BR, and the average area (average dispersion area) of the observed dispersed particles of the silicone-acrylic copolymer (B) was calculated. At this time, the coarse particles as described below were excluded from the area calculation. Furthermore, using the Nikon industrial microscope ECLIPSE LV150N, an image was taken at the same location under the condition of 20 times the objective lens, and the image was enlarged to 131 mm in length and 185 mm in width, and the area of the dispersed particles was visually 100 ⁇ m. The number of coarse and large diameter particles corresponding to 2 or more was measured. The image analysis area was 0.29 mm 2 , and it was represented by the number included in this area.
- the molded product used for the measurement was an injection molding machine (IS-80G-2AIS manufactured by Toshiba Machinery Co., Ltd.), and the cylinder temperature was set to 250 ° C for Example 4 and 220 ° C for the others, at an injection speed of 30%. Molding was performed. If the particles are finely dispersed and the average dispersion area cannot be calculated by the above detection method, the average dispersion area is determined by a transmission electron microscope (TEM), which is a more accurate analysis method described below. Make a calculation.
- TEM transmission electron microscope
- a frozen section was prepared using a cryomicroscope from near the center of the molded product so that a plane perpendicular to the flow direction could be observed, and electron-stained.
- Staining with an agent ruthenium tetroxide, osmium tetroxide, or phosphotung acid
- the shooting magnification of the photograph shall be 2,000 to 5,000 times.
- the photographed TEM image was binarized using ImageJ (free software developed by the National Institutes of Health), and the observed average area (average dispersion area) of the dispersed particles of the silicone-acrylic copolymer (B) was observed. ). At this time, the above-mentioned coarse particles are excluded from the area calculation.
- Abrasion resistance Thrust wear test Under the same conditions as 1) above, a SUS cylinder was placed on a 10 mm ⁇ 10 mm molded product with a thickness of 2 mm and a load load of 0.37 MPa, a sliding speed of 65 rpm. A wear test was carried out with a test time of 10 min. The mass before and after the test was compared, and the reduced mass was taken as the amount of wear. When the amount of wear was less than 0.3 g, it was evaluated as ⁇ , when it was 0.3 g or more and less than 0.35 g, it was evaluated as ⁇ , and when it was 0.35 g or more, it was evaluated as ⁇ .
- the raw materials used in the examples and comparative examples are as follows.
- A-1 Terephthalic acid / 1,4-butanediol / polyoxytetramethylene glycol (PTMG: number average molecular weight 2000) is 100 / 78.8 / 21 according to the method described in JP-A-9-59491.
- the content of soft segment (PTMG) was 68% by mass, and the reduced viscosity was 1.9 dl / g.
- A-2 According to the method described in JP-A-9-59491, 2,6-naphthalenedicarboxylic acid / 1,4-butanediol / polyoxytetramethylene glycol (PTMG: number average molecular weight 1000) is 100 / A thermoplastic polyester elastomer (A-2) having a molar ratio of 87.8 / 12.2 was produced. The content of the soft segment (PTMG) was 32% by mass, and the reduction viscosity was 1.3 dl / g.
- PTMG number average molecular weight 1000
- the reduced viscosity was measured at 30 ° C. with a Uberose viscometer by dissolving 0.02 g of a thermoplastic polyester elastomer in 10 ml of a mixed solvent of phenol / tetrachloroethane (mass ratio 6/4).
- Thermogravimetric analysis Thermogravimetric analysis (TGA) The weight loss rate at 250 ° C. was measured using a thermogravimetric analyzer (SII EXSTAR6000, TG6200 / DTA) under the condition of a temperature rise rate of 10 ° C./min from 23 to 550 ° C. with a sample weight of 5 mg. The device was installed in a test room at 23 ° C. and 50% Rhes.
- UV absorber CHISORB 234 (manufactured by BASF)
- HALS Hydedamine-based light stabilizer
- CHIMASORB 944 manufactured by BASF
- Hindered phenolic antioxidant SONGNOX 245 (manufactured by SONGWON)
- Phosphorus-based antioxidant HOSTANOX P-EPQ (manufactured by Clariant)
- Compatibility agent BF-7M, ethylene / glycidyl methacrylate / methyl acrylate copolymer (manufactured by Sumitomo Chemical Co., Ltd.)
- thermoplastic polyester elastomer (A) and the silicone-acrylic copolymer (B) are dry-blended with the formulations shown in Table 2 and used at 200 to 220 ° C. using a 35 mm ⁇ twin-screw extruder (manufactured by Toshiba Machinery Co., Ltd.).
- Example 4 the mixture was melt-kneaded at a temperature setting of 240 to 250 ° C., extruded into strands, cooled with water, and pelletized with a pelletizer. The obtained pellets were dried under reduced pressure at 100 ° C. for 5 hours to obtain a thermoplastic polyester elastomer resin composition.
- the evaluation results are shown in Table 2.
- thermoplastic polyester elastomer resin compositions of Examples 1 to 5 have excellent appearance and good wear resistance.
- Comparative Examples 1 to 4 since the dispersed state of the silicone-acrylic copolymer (B) is not appropriate, the result is inferior to that of Examples in any of the properties.
- thermoplastic polyester elastomer resin composition of the present invention is extremely excellent in appearance and wear resistance, it can be suitably used as an automobile interior member to which repeated wear is applied.
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Abstract
Description
(1) 芳香族ジカルボン酸と脂肪族及び/又は脂環族ジオールを構成成分とするポリエステルからなるハードセグメントと、脂肪族ポリエーテル、脂肪族ポリエステル及び脂肪族ポリカーボネートから選ばれる少なくとも1種のソフトセグメントが結合されてなる熱可塑性ポリエステルエラストマー(A)、及びシリコーン-アクリル共重合体(B)を含む熱可塑性ポリエステルエラストマー樹脂組成物であって、該熱可塑性ポリエステルエラストマー樹脂組成物を射出成形して得られる成形品中で、マトリクスを形成する熱可塑性ポリエステルエラストマー(A)に分散するシリコーン-アクリル共重合体(B)の平均分散面積が0.3μm2以下であることを特徴とする熱可塑性ポリエステルエラストマー樹脂組成物。
(2) シリコーン-アクリル共重合体(B)が、主骨格がシリコーンであり、主骨格に側鎖状にアクリル系ポリマーが結合した構成のグラフト共重合体であることを特徴とする、(1)に記載の熱可塑性ポリエステルエラストマー樹脂組成物。
(3) シリコーン-アクリル共重合体(B)が、熱重量分析(TGA)で測定した250℃での重量減少率が3.3%以上であることを特徴とする(1)または(2)に記載の熱可塑性ポリエステルエラストマー樹脂組成物。
(4) 芳香族ジカルボン酸と脂肪族及び/又は脂環族ジオールを構成成分とするポリエステルからなるハードセグメントと、脂肪族ポリエーテル、脂肪族ポリエステル及び脂肪族ポリカーボネートから選ばれる少なくとも1種のソフトセグメントが結合されてなる熱可塑性ポリエステルエラストマー(A)、及びシリコーン-アクリル共重合体(B)を含む熱可塑性ポリエステルエラストマー樹脂組成物から得られる成形体であって、成形体中で、マトリクスを形成する熱可塑性ポリエステルエラストマー(A)に分散するシリコーン-アクリル共重合体(B)の平均分散面積が0.3μm2以下であることを特徴とする成形体。
本発明の熱可塑性ポリエステルエラストマー樹脂組成物は、熱可塑性ポリエステルエラストマー(A)、シリコーン-アクリル共重合体(B)を含む熱可塑性ポリエステルエラストマー樹脂組成物であって、該熱可塑性ポリエステルエラストマー樹脂組成物を射出成形して得られる成形品中で、マトリクスを形成する熱可塑性ポリエステルエラストマー(A)に分散するシリコーン-アクリル共重合体(B)の平均分散面積が0.3μm2以下である。
熱可塑性ポリエステルエラストマー(A)は、芳香族ジカルボン酸と脂肪族又は脂環族ジオールとから構成される結晶性ポリエステルからなるハードセグメントと、脂肪族ポリエーテル、脂肪族ポリエステル及び脂肪族ポリカーボネートからなる群から選択される少なくとも1種のソフトセグメントとを主たる構成成分とすることが好ましく、前記ソフトセグメント成分の含有量が95~5質量%であることが好ましい。ソフトセグメント成分の含有量はより好ましくは90~10質量%であり、さらに好ましくは85~15質量%であり、特に好ましくは75~25質量%である。また、熱可塑性ポリエステルエラストマー(A)は、ソフトセグメント成分の含有量が異なる2種類以上のものを併用して、上述のソフトセグメント含有量となるように調整してもよい。
アクリル系ポリマーは、(メタ)アクリル酸エステル及び/又は(メタ)アクリル酸ヒドロキシアルキルエステルの(共)重合物である。ポリシロキサン部分を製造する際に、不飽和基を有するシランモノマーを適宜配合することによって、アクリル系ポリマーのグラフトの起点数を調節することができる。シリコーン-アクリル共重合体(B)中で、ポリシロキサン部分もアクリル系ポリマー部分も、直鎖状であっても分枝状であってもよい。(メタ)アクリル酸エステルと(メタ)アクリル酸ヒドロキシアルキルエステルは併用しても、どちらか一方のみを用いてもよい。
また、シリコーン-アクリル共重合体(B)は、一部が変性されていても良く、コア-シェル形態をとっていても良い。
しかし、マトリクス(樹脂)とドメイン(粒子)との表面エネルギー差が大きい場合、射出時にドメイン(粒子)は引き延ばされるものの、固化速度が遅い(降温結晶化温度・Tc2が低い)熱可塑性ポリエステルエラストマーがマトリクスであると、ドメインが再凝集しやすい。そのため、分子鎖が長く、表面エネルギーが大きい(樹脂とのエネルギー差が大きい)ドメインの場合、元のサイズに戻りやすくなり、微分散せずに外観不良が発生しやすい。よって、樹脂との相溶性を向上(エネルギー差を低減)させ、射出成形時に粒子のコア-シェル構造を解きほぐして微分散化するには、粒子の分子量は低いものが望ましい。
同じ構成を有するグラフト共重合体であっても、上記で説明したように分子量の尺度が非常に重要となる。この分子量の尺度として、熱重量分析(TGA)で測定した250℃での重量減少率を使用する。
シャリーヌR-175S、シャリーヌR-170S、シャリーヌR-170HSについて、熱重量分析(TGA)を行った結果の、各温度での重量減少率(%)を表1に示す。TGAの測定条件は、後記する実施例に記載の通りである。
また、250℃における重量減少率は、R-175Sで3.5%、R-170Sで3.2%、R-170HSで3.2%であり、R-175Sの分子量が最も低く、分子量の序列としては、R-175S<R-170S≒R-170HSと言える。
この重量減少率と分子量の関係は、メーカー情報(分子量の関係:R-175S<<R-170S<R-170HS)や特開2019-64281号公報の記載(シャリーヌR-175S 平均分子量200,000[0090段落]、シャリーヌR-170 平均分子量400,000[0095段落])とも整合する。
各評価方法は下記の通りである。
射出成形にて成形した厚み2mmの10mm×10mmの成形品より、クライオミクロトームを用いて成形品の中央付近から、流れ方向に対して垂直な面が観察できるように試料の断面を作製した後、Nikon 工業用顕微鏡 ECLIPSE LV150Nを用いて、対物レンズ100倍の条件で画像撮影した。画像撮影の箇所は粒子の分散径の安定した成形品断面の中央部とした。撮影した画像をNikon NIS-Elements BRを用いて画像解析を行い、観察されたシリコーン-アクリル共重合体(B)の分散粒子の平均面積(平均分散面積)を算出した。この際、以下に記載する様な粗大粒子は面積算出から除外した。
更に、Nikon 工業用顕微鏡 ECLIPSE LV150Nを用いて、対物レンズ20倍の条件で、同様の箇所にて画像撮影し、画像を縦131mm、横185mmに拡大表示させ、目視で、分散粒子の面積が100μm2以上に相当する粗大径粒子の個数を測定した。画像解析面積は0.29mm2であり、この面積に含まれる個数で表した。
測定に用いた成形品は、射出成形機(東芝機械製 IS-80G-2AIS)にて、シリンダー温度を実施例4は、250℃、それ以外は220℃に設定し、射出速度30%にて成形を行った。
なお、粒子が微分散化され、上記の検出法では平均分散面積を算出出来ない場合には、以下に説明する、より高精度な分析方法である透過電子顕微鏡(TEM)にて平均分散面積の算出を行う。
射出成形にて成形した厚み2mmの10mm×10mmの成形品より、クライオミクロトームを用いて成形品の中央付近から、流れ方向に対して垂直な面が観察できるように凍結切片を作製し、電子染色剤(四酸化ルテニウム、四酸化オスミウム、リンタングステン酸のいずれか)で染色したものを、日本電子製JEM2100透過電子顕微鏡を用いて、加速電圧200kVの条件で観察、写真撮影を行う。写真の撮影倍率は2,000~5,000倍とする。撮影したTEM像をImageJ(アメリカ国立衛生研究所が開発したフリーソフト)を用いて二値化処理を施し、観察されたシリコーン-アクリル共重合体(B)の分散粒子の平均面積(平均分散面積)を求める。この際、上記の粗大粒子は面積算出から除外する。
上記1)と同条件で、射出成形により成形した厚み2mmの10mm×10mmの成形品上にSUS製円筒を乗せ、負荷荷重0.37MPa、摺動速度65rpm、試験時間10minで摩耗試験を実施した。試験前後の質量を比較し、減少した質量を摩耗量とした。摩耗量が0.3g未満であれば〇、0.3g以上0.35g未満であれば△、0.35g以上であれば×で評価した。
上記1)と同条件で、射出成形により成形した厚み2mmの10mm×10mmの成形品を目視により、白化が見られる面積の比率が25%未満であれば〇、25%以上50%未満であれば△、50%以上であれば×で評価した。
〔熱可塑性ポリエステルエラストマー(A)〕
A-1: 特開平9-59491号公報に記載の方法に準じて、テレフタル酸/1,4-ブタンジオール/ポリオキシテトラメチレングリコール(PTMG:数平均分子量2000)が100/78.8/21.2(モル比)の熱可塑性ポリエステルエラストマー(A-1)を製造した。ソフトセグメント(PTMG)の含有率は68質量%であり、還元粘度は1.9dl/gであった。
B-1: シャリーヌ R-175S、シリコーン/アクリル系ポリマー=70/30(質量比)、面積基準平均粒子径30μm、250℃での重量減少率が3.5%
B-2: シャリーヌ R-170S、シリコーン/アクリル系ポリマー=70/30(質量比)、面積基準平均粒子径30μm、250℃での重量減少率が3.2%
B-3: シャリーヌ R-170HS、シリコーン/アクリル系ポリマー=70/30(質量比)、面積基準平均粒子径30μm、250℃での重量減少率が3.2%
B-4: 特開2016-79228号公報に記載のシリコーン変性(メタ)アクリルポリマーA(側鎖にポリアルキルシロキサンを有するアクリルポリマー)を製造した。シリコーン/アクリル系ポリマー=70/30(質量比)、面積基準平均粒子径50μm。
250℃での重量減少率は、熱重量分析装置(SII EXSTAR6000,TG6200/DTA)を用い、サンプル重量5mgとして23~550℃まで昇温速度10℃/minの条件で測定した。装置は、23℃、50%RHの試験室に設置した。
紫外線吸収剤:CHISORB 234(BASF社製)
HALS(ヒンダードアミン系光安定剤):CHIMASORB 944(BASF社製)
ヒンダードフェノール系酸化防止剤:SONGNOX 245(SONGWON社製)
リン系酸化防止剤:HOSTANOX P-EPQ(Clariant社製)
相溶化剤:BF-7M、エチレン/グリシジルメタクリレート/メチルアクリレート共重合体(住友化学社製)
上記熱可塑性ポリエステルエラストマー(A)、シリコーン-アクリル共重合体(B)を表2に記載の配合でドライブレンドし、35mmφ二軸押出機(東芝機械社製)を用いて、200~220℃(実施例4は、240~250℃)の温度設定で溶融混練してストランド状に押出し、水冷してペレタイザーでペレット化した。得られたペレットを100℃にて5時間減圧乾燥し、熱可塑性ポリエステルエラストマー樹脂組成物を得た。評価結果を表2に示す。
Claims (4)
- 芳香族ジカルボン酸と脂肪族及び/又は脂環族ジオールを構成成分とするポリエステルからなるハードセグメントと、脂肪族ポリエーテル、脂肪族ポリエステル及び脂肪族ポリカーボネートから選ばれる少なくとも1種のソフトセグメントが結合されてなる熱可塑性ポリエステルエラストマー(A)、及びシリコーン-アクリル共重合体(B)を含む熱可塑性ポリエステルエラストマー樹脂組成物であって、該熱可塑性ポリエステルエラストマー樹脂組成物を射出成形して得られる成形品中で、マトリクスを形成する熱可塑性ポリエステルエラストマー(A)に分散するシリコーン-アクリル共重合体(B)の平均分散面積が0.3μm2以下であることを特徴とする熱可塑性ポリエステルエラストマー樹脂組成物。
- シリコーン-アクリル共重合体(B)が、主骨格がシリコーンであり、主骨格に側鎖状にアクリル系ポリマーが結合した構成のグラフト共重合体であることを特徴とする、請求項1に記載の熱可塑性ポリエステルエラストマー樹脂組成物。
- シリコーン-アクリル共重合体(B)が、熱重量分析(TGA)で測定した250℃での重量減少率が3.3%以上であることを特徴とする請求項1または2に記載の熱可塑性ポリエステルエラストマー樹脂組成物。
- 芳香族ジカルボン酸と脂肪族及び/又は脂環族ジオールを構成成分とするポリエステルからなるハードセグメントと、脂肪族ポリエーテル、脂肪族ポリエステル及び脂肪族ポリカーボネートから選ばれる少なくとも1種のソフトセグメントが結合されてなる熱可塑性ポリエステルエラストマー(A)、及びシリコーン-アクリル共重合体(B)を含む熱可塑性ポリエステルエラストマー樹脂組成物から得られる成形体であって、成形体中で、マトリクスを形成する熱可塑性ポリエステルエラストマー(A)に分散するシリコーン-アクリル共重合体(B)の平均分散面積が0.3μm2以下であることを特徴とする成形体。
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JPH0959491A (ja) | 1995-08-17 | 1997-03-04 | Toyobo Co Ltd | 熱可塑性ポリエステルエラストマー組成物 |
JP2003012989A (ja) * | 2001-06-28 | 2003-01-15 | Morimura Chemicals Ltd | 印刷インク及び印刷インク用添加剤 |
JP2010106597A (ja) * | 2008-10-31 | 2010-05-13 | Riken Technos Corp | 壁装用積層樹脂シートおよびこれを用いてなる壁紙 |
JP2016079228A (ja) | 2014-10-10 | 2016-05-16 | アロン化成株式会社 | 熱可塑性エラストマー組成物 |
JP2019064281A (ja) | 2017-09-28 | 2019-04-25 | 株式会社フコク | ワイパーブレードゴム |
WO2019168007A1 (ja) * | 2018-02-27 | 2019-09-06 | 三菱ケミカル株式会社 | ポリオルガノシロキサン含有グラフト共重合体粉体、およびそれを用いた樹脂組成物ならびにそれからなる成形体 |
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JPH0959491A (ja) | 1995-08-17 | 1997-03-04 | Toyobo Co Ltd | 熱可塑性ポリエステルエラストマー組成物 |
JP2003012989A (ja) * | 2001-06-28 | 2003-01-15 | Morimura Chemicals Ltd | 印刷インク及び印刷インク用添加剤 |
JP2010106597A (ja) * | 2008-10-31 | 2010-05-13 | Riken Technos Corp | 壁装用積層樹脂シートおよびこれを用いてなる壁紙 |
JP2016079228A (ja) | 2014-10-10 | 2016-05-16 | アロン化成株式会社 | 熱可塑性エラストマー組成物 |
JP2019064281A (ja) | 2017-09-28 | 2019-04-25 | 株式会社フコク | ワイパーブレードゴム |
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