JP4928157B2 - ポリ乳酸樹脂組成物および成形品 - Google Patents
ポリ乳酸樹脂組成物および成形品 Download PDFInfo
- Publication number
- JP4928157B2 JP4928157B2 JP2006146833A JP2006146833A JP4928157B2 JP 4928157 B2 JP4928157 B2 JP 4928157B2 JP 2006146833 A JP2006146833 A JP 2006146833A JP 2006146833 A JP2006146833 A JP 2006146833A JP 4928157 B2 JP4928157 B2 JP 4928157B2
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- JP
- Japan
- Prior art keywords
- polylactic acid
- film
- acid
- phthalate
- crystalline
- 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.)
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- 229920000747 poly(lactic acid) Polymers 0.000 title claims description 67
- 239000004626 polylactic acid Substances 0.000 title claims description 67
- 239000011342 resin composition Substances 0.000 title claims description 11
- 239000004014 plasticizer Substances 0.000 claims description 41
- 239000000203 mixture Substances 0.000 claims description 9
- 238000000465 moulding Methods 0.000 claims description 9
- 229920005989 resin Polymers 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 25
- -1 phosphate ester Chemical class 0.000 description 20
- 229920006381 polylactic acid film Polymers 0.000 description 15
- 229920001432 poly(L-lactide) Polymers 0.000 description 14
- JVTAAEKCZFNVCJ-REOHCLBHSA-N L-lactic acid Chemical compound C[C@H](O)C(O)=O JVTAAEKCZFNVCJ-REOHCLBHSA-N 0.000 description 13
- 229960000448 lactic acid Drugs 0.000 description 13
- 239000013078 crystal Substances 0.000 description 12
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 11
- 239000004310 lactic acid Substances 0.000 description 11
- 235000014655 lactic acid Nutrition 0.000 description 11
- 239000004593 Epoxy Substances 0.000 description 9
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 8
- 230000007423 decrease Effects 0.000 description 8
- 238000009826 distribution Methods 0.000 description 8
- 229920000642 polymer Polymers 0.000 description 8
- 230000000704 physical effect Effects 0.000 description 7
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 6
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 6
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 description 6
- 150000005846 sugar alcohols Polymers 0.000 description 6
- JVTAAEKCZFNVCJ-UWTATZPHSA-N D-lactic acid Chemical compound C[C@@H](O)C(O)=O JVTAAEKCZFNVCJ-UWTATZPHSA-N 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 5
- 229920001577 copolymer Polymers 0.000 description 5
- 238000002425 crystallisation Methods 0.000 description 5
- 230000008025 crystallization Effects 0.000 description 5
- 229940022769 d- lactic acid Drugs 0.000 description 5
- 150000002148 esters Chemical class 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 239000000178 monomer Substances 0.000 description 5
- 229920000728 polyester Polymers 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 125000001931 aliphatic group Chemical group 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 235000014113 dietary fatty acids Nutrition 0.000 description 4
- 239000000194 fatty acid Substances 0.000 description 4
- 229930195729 fatty acid Natural products 0.000 description 4
- 235000011187 glycerol Nutrition 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 239000008188 pellet Substances 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- WNLRTRBMVRJNCN-UHFFFAOYSA-L adipate(2-) Chemical compound [O-]C(=O)CCCCC([O-])=O WNLRTRBMVRJNCN-UHFFFAOYSA-L 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 150000004665 fatty acids Chemical class 0.000 description 3
- WNLRTRBMVRJNCN-UHFFFAOYSA-N hexanedioic acid Natural products OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- JQCXWCOOWVGKMT-UHFFFAOYSA-N phthalic acid diheptyl ester Natural products CCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCC JQCXWCOOWVGKMT-UHFFFAOYSA-N 0.000 description 3
- UQDJGEHQDNVPGU-UHFFFAOYSA-N serine phosphoethanolamine Chemical compound [NH3+]CCOP([O-])(=O)OCC([NH3+])C([O-])=O UQDJGEHQDNVPGU-UHFFFAOYSA-N 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- VBICKXHEKHSIBG-UHFFFAOYSA-N 1-monostearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(O)CO VBICKXHEKHSIBG-UHFFFAOYSA-N 0.000 description 2
- KMZHZAAOEWVPSE-UHFFFAOYSA-N 2,3-dihydroxypropyl acetate Chemical compound CC(=O)OCC(O)CO KMZHZAAOEWVPSE-UHFFFAOYSA-N 0.000 description 2
- LVAGMBHLXLZJKZ-UHFFFAOYSA-N 2-o-decyl 1-o-octyl benzene-1,2-dicarboxylate Chemical compound CCCCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC LVAGMBHLXLZJKZ-UHFFFAOYSA-N 0.000 description 2
- IRIAEXORFWYRCZ-UHFFFAOYSA-N Butylbenzyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCC1=CC=CC=C1 IRIAEXORFWYRCZ-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 229930182843 D-Lactic acid Natural products 0.000 description 2
- KCXZNSGUUQJJTR-UHFFFAOYSA-N Di-n-hexyl phthalate Chemical compound CCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCC KCXZNSGUUQJJTR-UHFFFAOYSA-N 0.000 description 2
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Chemical compound CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 2
- NIQCNGHVCWTJSM-UHFFFAOYSA-N Dimethyl phthalate Chemical compound COC(=O)C1=CC=CC=C1C(=O)OC NIQCNGHVCWTJSM-UHFFFAOYSA-N 0.000 description 2
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 239000002202 Polyethylene glycol Substances 0.000 description 2
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-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
- ZFOZVQLOBQUTQQ-UHFFFAOYSA-N Tributyl citrate Chemical compound CCCCOC(=O)CC(O)(C(=O)OCCCC)CC(=O)OCCCC ZFOZVQLOBQUTQQ-UHFFFAOYSA-N 0.000 description 2
- UYXTWWCETRIEDR-UHFFFAOYSA-N Tributyrin Chemical compound CCCC(=O)OCC(OC(=O)CCC)COC(=O)CCC UYXTWWCETRIEDR-UHFFFAOYSA-N 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 2
- 239000001361 adipic acid Substances 0.000 description 2
- 235000011037 adipic acid Nutrition 0.000 description 2
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 2
- 229920001400 block copolymer Polymers 0.000 description 2
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 2
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 2
- FLKPEMZONWLCSK-UHFFFAOYSA-N diethyl phthalate Chemical compound CCOC(=O)C1=CC=CC=C1C(=O)OCC FLKPEMZONWLCSK-UHFFFAOYSA-N 0.000 description 2
- GPLRAVKSCUXZTP-UHFFFAOYSA-N diglycerol Chemical compound OCC(O)COCC(O)CO GPLRAVKSCUXZTP-UHFFFAOYSA-N 0.000 description 2
- MGWAVDBGNNKXQV-UHFFFAOYSA-N diisobutyl phthalate Chemical compound CC(C)COC(=O)C1=CC=CC=C1C(=O)OCC(C)C MGWAVDBGNNKXQV-UHFFFAOYSA-N 0.000 description 2
- YSEKNCXYRGKTBJ-UHFFFAOYSA-N dimethyl 2-hydroxybutanedioate Chemical compound COC(=O)CC(O)C(=O)OC YSEKNCXYRGKTBJ-UHFFFAOYSA-N 0.000 description 2
- ALOUNLDAKADEEB-UHFFFAOYSA-N dimethyl sebacate Chemical compound COC(=O)CCCCCCCCC(=O)OC ALOUNLDAKADEEB-UHFFFAOYSA-N 0.000 description 2
- 150000002009 diols Chemical class 0.000 description 2
- IPKKHRVROFYTEK-UHFFFAOYSA-N dipentyl phthalate Chemical compound CCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCC IPKKHRVROFYTEK-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 125000001475 halogen functional group Chemical group 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
- 229940049920 malate Drugs 0.000 description 2
- WIBFFTLQMKKBLZ-SEYXRHQNSA-N n-butyl oleate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OCCCC WIBFFTLQMKKBLZ-SEYXRHQNSA-N 0.000 description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- 229920001223 polyethylene glycol Polymers 0.000 description 2
- 150000007519 polyprotic acids Polymers 0.000 description 2
- 229920005604 random copolymer Polymers 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- URAYPUMNDPQOKB-UHFFFAOYSA-N triacetin Chemical compound CC(=O)OCC(OC(C)=O)COC(C)=O URAYPUMNDPQOKB-UHFFFAOYSA-N 0.000 description 2
- 229940088594 vitamin Drugs 0.000 description 2
- 229930003231 vitamin Natural products 0.000 description 2
- DNIAPMSPPWPWGF-VKHMYHEASA-N (+)-propylene glycol Chemical compound C[C@H](O)CO DNIAPMSPPWPWGF-VKHMYHEASA-N 0.000 description 1
- LDVVTQMJQSCDMK-UHFFFAOYSA-N 1,3-dihydroxypropan-2-yl formate Chemical compound OCC(CO)OC=O LDVVTQMJQSCDMK-UHFFFAOYSA-N 0.000 description 1
- YPFDHNVEDLHUCE-UHFFFAOYSA-N 1,3-propanediol Substances OCCCO YPFDHNVEDLHUCE-UHFFFAOYSA-N 0.000 description 1
- IOVNHINTOHPELQ-UHFFFAOYSA-N 1-o-butyl 2-o-(8-methylnonyl) benzene-1,2-dicarboxylate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC(C)C IOVNHINTOHPELQ-UHFFFAOYSA-N 0.000 description 1
- BAZVBVCLLGYUFS-UHFFFAOYSA-N 1-o-butyl 2-o-dodecyl benzene-1,2-dicarboxylate Chemical compound CCCCCCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC BAZVBVCLLGYUFS-UHFFFAOYSA-N 0.000 description 1
- BVGCOMLNDPDLSO-UHFFFAOYSA-N 1-o-decyl 2-o-octan-3-yl benzene-1,2-dicarboxylate Chemical compound CCCCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OC(CC)CCCCC BVGCOMLNDPDLSO-UHFFFAOYSA-N 0.000 description 1
- RIXCYAQOGLLEIU-OTDRRXFESA-N 2,3-bis[[(e)-12-acetyloxyoctadec-9-enoyl]oxy]propyl (e)-12-acetyloxyoctadec-9-enoate Chemical compound CCCCCCC(OC(C)=O)C\C=C\CCCCCCCC(=O)OCC(OC(=O)CCCCCCC\C=C\CC(CCCCCC)OC(C)=O)COC(=O)CCCCCCC\C=C\CC(CCCCCC)OC(C)=O RIXCYAQOGLLEIU-OTDRRXFESA-N 0.000 description 1
- IFKLBBIPFXRVBR-UHFFFAOYSA-N 2,3-diacetyloxypropyl decanoate Chemical compound CCCCCCCCCC(=O)OCC(OC(C)=O)COC(C)=O IFKLBBIPFXRVBR-UHFFFAOYSA-N 0.000 description 1
- 239000000263 2,3-dihydroxypropyl (Z)-octadec-9-enoate Substances 0.000 description 1
- HDIFHQMREAYYJW-FMIVXFBMSA-N 2,3-dihydroxypropyl (e)-12-hydroxyoctadec-9-enoate Chemical compound CCCCCCC(O)C\C=C\CCCCCCCC(=O)OCC(O)CO HDIFHQMREAYYJW-FMIVXFBMSA-N 0.000 description 1
- RGUFZILIVUBHAE-UHFFFAOYSA-N 2-(2-decoxy-2-oxoethyl)-2-hydroxybutanedioic acid Chemical compound CCCCCCCCCCOC(=O)CC(O)(C(O)=O)CC(O)=O RGUFZILIVUBHAE-UHFFFAOYSA-N 0.000 description 1
- PHDVPEOLXYBNJY-KTKRTIGZSA-N 2-(2-hydroxyethoxy)ethyl (z)-octadec-9-enoate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OCCOCCO PHDVPEOLXYBNJY-KTKRTIGZSA-N 0.000 description 1
- WGIMXKDCVCTHGW-UHFFFAOYSA-N 2-(2-hydroxyethoxy)ethyl dodecanoate Chemical compound CCCCCCCCCCCC(=O)OCCOCCO WGIMXKDCVCTHGW-UHFFFAOYSA-N 0.000 description 1
- RWXMAAYKJDQVTF-UHFFFAOYSA-N 2-(2-hydroxyethoxy)ethyl prop-2-enoate Chemical compound OCCOCCOC(=O)C=C RWXMAAYKJDQVTF-UHFFFAOYSA-N 0.000 description 1
- RTGQGAXEHFZMBG-UHFFFAOYSA-N 2-(2-nonanoyloxyethoxy)ethyl nonanoate Chemical compound CCCCCCCCC(=O)OCCOCCOC(=O)CCCCCCCC RTGQGAXEHFZMBG-UHFFFAOYSA-N 0.000 description 1
- YEVQZPWSVWZAOB-UHFFFAOYSA-N 2-(bromomethyl)-1-iodo-4-(trifluoromethyl)benzene Chemical compound FC(F)(F)C1=CC=C(I)C(CBr)=C1 YEVQZPWSVWZAOB-UHFFFAOYSA-N 0.000 description 1
- ZGHZSTWONPNWHV-UHFFFAOYSA-N 2-(oxiran-2-yl)ethyl octadecanoate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCCC1CO1 ZGHZSTWONPNWHV-UHFFFAOYSA-N 0.000 description 1
- AHSGHEXYEABOKT-UHFFFAOYSA-N 2-[2-(2-benzoyloxyethoxy)ethoxy]ethyl benzoate Chemical compound C=1C=CC=CC=1C(=O)OCCOCCOCCOC(=O)C1=CC=CC=C1 AHSGHEXYEABOKT-UHFFFAOYSA-N 0.000 description 1
- UBQXQCCAPASFJR-UHFFFAOYSA-N 2-[2-(2-nonanoyloxyethoxy)ethoxy]ethyl nonanoate Chemical compound CCCCCCCCC(=O)OCCOCCOCCOC(=O)CCCCCCCC UBQXQCCAPASFJR-UHFFFAOYSA-N 0.000 description 1
- JEYLQCXBYFQJRO-UHFFFAOYSA-N 2-[2-[2-(2-ethylbutanoyloxy)ethoxy]ethoxy]ethyl 2-ethylbutanoate Chemical compound CCC(CC)C(=O)OCCOCCOCCOC(=O)C(CC)CC JEYLQCXBYFQJRO-UHFFFAOYSA-N 0.000 description 1
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 description 1
- UFARNTYYPHYLGN-KHPPLWFESA-N 2-methoxyethyl (z)-octadec-9-enoate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OCCOC UFARNTYYPHYLGN-KHPPLWFESA-N 0.000 description 1
- YCMLQMDWSXFTIF-UHFFFAOYSA-N 2-methylbenzenesulfonimidic acid Chemical compound CC1=CC=CC=C1S(N)(=O)=O YCMLQMDWSXFTIF-UHFFFAOYSA-N 0.000 description 1
- QTWJRLJHJPIABL-UHFFFAOYSA-N 2-methylphenol;3-methylphenol;4-methylphenol Chemical compound CC1=CC=C(O)C=C1.CC1=CC=CC(O)=C1.CC1=CC=CC=C1O QTWJRLJHJPIABL-UHFFFAOYSA-N 0.000 description 1
- PZBLUWVMZMXIKZ-UHFFFAOYSA-N 2-o-(2-ethoxy-2-oxoethyl) 1-o-ethyl benzene-1,2-dicarboxylate Chemical compound CCOC(=O)COC(=O)C1=CC=CC=C1C(=O)OCC PZBLUWVMZMXIKZ-UHFFFAOYSA-N 0.000 description 1
- YJERZJLSXBRUDQ-UHFFFAOYSA-N 2-o-(3,4-dihydroxybutyl) 1-o-methyl benzene-1,2-dicarboxylate Chemical compound COC(=O)C1=CC=CC=C1C(=O)OCCC(O)CO YJERZJLSXBRUDQ-UHFFFAOYSA-N 0.000 description 1
- ALKCLFLTXBBMMP-UHFFFAOYSA-N 3,7-dimethylocta-1,6-dien-3-yl hexanoate Chemical compound CCCCCC(=O)OC(C)(C=C)CCC=C(C)C ALKCLFLTXBBMMP-UHFFFAOYSA-N 0.000 description 1
- NUCFNMOPTGEHQA-UHFFFAOYSA-N 3-bromo-2h-pyrazolo[4,3-c]pyridine Chemical compound C1=NC=C2C(Br)=NNC2=C1 NUCFNMOPTGEHQA-UHFFFAOYSA-N 0.000 description 1
- RZRNAYUHWVFMIP-GDCKJWNLSA-N 3-oleoyl-sn-glycerol Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@H](O)CO RZRNAYUHWVFMIP-GDCKJWNLSA-N 0.000 description 1
- LEUWBMAQQQENOO-UHFFFAOYSA-N 4-(4-chlorophenyl)-6-methyl-2-oxo-3,4-dihydro-1h-pyridine-5-carboxylic acid Chemical compound C1C(=O)NC(C)=C(C(O)=O)C1C1=CC=C(Cl)C=C1 LEUWBMAQQQENOO-UHFFFAOYSA-N 0.000 description 1
- SIXWIUJQBBANGK-UHFFFAOYSA-N 4-(4-fluorophenyl)-1h-pyrazol-5-amine Chemical compound N1N=CC(C=2C=CC(F)=CC=2)=C1N SIXWIUJQBBANGK-UHFFFAOYSA-N 0.000 description 1
- DMIMWGHYIPFAIF-UHFFFAOYSA-N 5-nitro-2-piperidin-1-ylaniline Chemical compound NC1=CC([N+]([O-])=O)=CC=C1N1CCCCC1 DMIMWGHYIPFAIF-UHFFFAOYSA-N 0.000 description 1
- DECACTMEFWAFRE-UHFFFAOYSA-N 6-o-benzyl 1-o-octyl hexanedioate Chemical compound CCCCCCCCOC(=O)CCCCC(=O)OCC1=CC=CC=C1 DECACTMEFWAFRE-UHFFFAOYSA-N 0.000 description 1
- NWSGBTCJMJADLE-UHFFFAOYSA-N 6-o-decyl 1-o-octyl hexanedioate Chemical compound CCCCCCCCCCOC(=O)CCCCC(=O)OCCCCCCCC NWSGBTCJMJADLE-UHFFFAOYSA-N 0.000 description 1
- DLZHIYULEPBYBE-UHFFFAOYSA-N 6-oxo-6-(5-phenylpentoxy)hexanoic acid Chemical compound OC(=O)CCCCC(=O)OCCCCCC1=CC=CC=C1 DLZHIYULEPBYBE-UHFFFAOYSA-N 0.000 description 1
- QZCLKYGREBVARF-UHFFFAOYSA-N Acetyl tributyl citrate Chemical compound CCCCOC(=O)CC(C(=O)OCCCC)(OC(C)=O)CC(=O)OCCCC QZCLKYGREBVARF-UHFFFAOYSA-N 0.000 description 1
- 229930185605 Bisphenol Natural products 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- GOJCZVPJCKEBQV-UHFFFAOYSA-N Butyl phthalyl butylglycolate Chemical compound CCCCOC(=O)COC(=O)C1=CC=CC=C1C(=O)OCCCC GOJCZVPJCKEBQV-UHFFFAOYSA-N 0.000 description 1
- RXIMDEQGGDXGHI-WLPAHWJHSA-N C(C)(=O)O.C(C)(=O)O.C(C)(=O)O.C(CCCCCCC\C=C/C[C@H](O)CCCCCC)(=O)O.OCC(O)CO Chemical compound C(C)(=O)O.C(C)(=O)O.C(C)(=O)O.C(CCCCCCC\C=C/C[C@H](O)CCCCCC)(=O)O.OCC(O)CO RXIMDEQGGDXGHI-WLPAHWJHSA-N 0.000 description 1
- 244000060011 Cocos nucifera Species 0.000 description 1
- 235000013162 Cocos nucifera Nutrition 0.000 description 1
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 1
- FBPFZTCFMRRESA-KVTDHHQDSA-N D-Mannitol Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-KVTDHHQDSA-N 0.000 description 1
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 description 1
- 239000004641 Diallyl-phthalate Substances 0.000 description 1
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- XZZNDPSIHUTMOC-UHFFFAOYSA-N triphenyl phosphate Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=O)OC1=CC=CC=C1 XZZNDPSIHUTMOC-UHFFFAOYSA-N 0.000 description 1
- YZWRNSARCRTXDS-UHFFFAOYSA-N tripropionin Chemical compound CCC(=O)OCC(OC(=O)CC)COC(=O)CC YZWRNSARCRTXDS-UHFFFAOYSA-N 0.000 description 1
- WDRCVXGINNJWPH-UHFFFAOYSA-N tris(6-methylheptyl) benzene-1,2,4-tricarboxylate Chemical compound CC(C)CCCCCOC(=O)C1=CC=C(C(=O)OCCCCCC(C)C)C(C(=O)OCCCCCC(C)C)=C1 WDRCVXGINNJWPH-UHFFFAOYSA-N 0.000 description 1
- FJFYFBRNDHRTHL-UHFFFAOYSA-N tris(8-methylnonyl) benzene-1,2,4-tricarboxylate Chemical compound CC(C)CCCCCCCOC(=O)C1=CC=C(C(=O)OCCCCCCCC(C)C)C(C(=O)OCCCCCCCC(C)C)=C1 FJFYFBRNDHRTHL-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000000811 xylitol Substances 0.000 description 1
- 235000010447 xylitol Nutrition 0.000 description 1
- HEBKCHPVOIAQTA-SCDXWVJYSA-N xylitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)CO HEBKCHPVOIAQTA-SCDXWVJYSA-N 0.000 description 1
- 229960002675 xylitol Drugs 0.000 description 1
Images
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- Compositions Of Macromolecular Compounds (AREA)
- Biological Depolymerization Polymers (AREA)
Description
なお、本発明で使用する重量平均分子量(Mw)、数平均分子量(Mn)は、サイズ排除クロマトグラフにより測定された標準ポリスチレン換算値を使用している。以下同様である。
(1)結晶化度(%):23%以下、3%以上、好ましくは7%以上、
大気環境下60℃、1時間処理後の結晶化度:42%以下、22%以上、好ましくは40%以上
結晶化度(crystalinity)(%)とは、試料全体に対する結晶質の割合を意味し、X線回折装置により測定した回折パターンから非晶質に起因するブロードなハロー及び結晶質に起因するシャープなピーク面積を算出し、結晶質と非晶質のピーク面積の和に対する結晶質の割合を示したものである。
結晶子径(Å):110〜140
大気環境下60℃、1時間処理後の結晶化度:160〜190
結晶子(crystallite)とは、単結晶とみなせる最大の集まりを意味し、結晶子径(crystallite size)(Å)は、X線回折により得られた回折ピークから半価幅をScherrerの式(D=K・λ/βcosθ D:結晶子の大きさ λ:測定X線波長 β:半価幅 θ:回折線のブラッグ角 K:Scherrer定数)に代入することにより算出したものである。結晶子径は、本発明に於いて光透過性に影響し、その値が増加すると、透明性の低下を招く)。
最大球晶径:4〜10μm
球晶(spherulite)とは、単結晶の球状集合体で、最大球晶径(spherulite size)は、偏光顕微鏡観察により得られた画像をWinROOFで解析することにより測定し算出したものである。最大球晶径は、本発明に於いて透明性に大きく影響し、その値が大きくなる程、透明性は低下する。
直径1μm以下の球晶の個数割合が40%以上
球晶径分布は、偏光顕微鏡観察により得られた画像をWinroofで解析することにより測定し算出したものである。球晶径分布は、本発明に於いて透明性に大きく影響し、より小さい球晶の分布割合が多くなればなるほど、透明性は増す。
引張強度:90Mpa以上
切断時の伸張率:190%以上
HAZE値:0.45以下
大気環境下60℃、1時間処理後のHAZE値:0.45以下
柔軟で透明であり、かつ実用的強度、耐熱性を有し、しかもそれらの特性を長期間保持できる生分解性ポリ乳酸樹脂組成物および該組成物からなる成形品を提供した。
本実施例では、結晶性ポリ乳酸として、
ポリL乳酸(PLLA)、
重量平均分子量(Mw):150000、
数平均分子量(Mn):74000、
Mw/Mn=2.1、
融点(mp):164℃、
[α]D 25=−150°、
溶融粘度(MFR):7.7(190℃、2.16kg)のものを用いた。
ポリDL乳酸(PDLLA)、
重量平均分子量(Mw):220000、
数平均分子量(Mn):110000、
Mw/Mn=2.0、
融点(mp):なし
[α]D 25=−118°、
溶融粘度(MFR):2.5(190℃、2.16kg)を用いた。
得られたフィルムの結晶状態を、偏光顕微鏡(OLYMPUS BX51:OLYMPUS社製)を用いて観察した。
図5に、上記で得られたフィルムの偏光顕微鏡(OLYMPUS BX51:OLYMPUS社製)を示した。例えば、L:DL(100:0)の写真中、白点がポリ乳酸の球晶である。
PDLLAの割合が多くなるほど、ポリ乳酸の球晶の大きさが小さくなっているのがわかる。
下記表1に、結晶化度(%)、結晶子径(Å)、最大球晶径をまとめた。表2にフィルムを大気環境下60℃で1時間処理した後の結晶化度(%)、結晶子径(Å)をまとめた。表3に、球晶径分布を示した。
X線回折測定は5゜<2θ<35゜の範囲で行い16.7゜、19゜の位置に現れるピークを結晶質由来のピークとして測定を行った。
フィルムの引張強度、切断時の伸長率を、引張試験機(KYOWA)を用いて室温(20±2℃)にて行った。サンプルは、横幅30mm、縦7mmの中12mmを4mm幅とした厚さ50μmのダンベル状(図1参照)にカットしたものを使用した。結果を図2に示す。
図2から、本発明のポリ乳酸フィルムは、適度な引張強度を保持したままで伸張率が増加していることがわかる。
結晶性ポリ乳酸を添加していないフィルムにおいては、熱処理により完全に結晶化が進行し、非常に硬くて脆いフィルムに変化した。非結晶性ポリ乳酸を添加したフィルムにおいては、60℃で1時間処理したにもかかわらず、高い切断伸張率を保持した。
PLLA、PDLLA、可塑剤(8,10AMG)をそれぞれクロロホルムに1g/dlの濃度で溶解させた。その溶液を使用し、PLLAとPDLLAの合計量に対してPDLLAが質量含有率で5、15、25%含まれるポリ乳酸フィルムを作製した。可塑剤はフィルム全量(固形分)の質量15%含有させた。
フィルム作製
PLLAとPDLLAの合計量に対して、PDLLAが5%、25%、30%含まれるようにPLLA、PDLLA、可塑剤(8,10AMG)、アンチブロッキング剤(エルカ酸アミド)をストレンドダイを備えた2軸押出機にて200℃で混練しコールドカットしてペレットを作製した。作製したペレットは80℃で5時間乾燥した。作製したペレットを用い、Tダイを備えた単軸押出機にて、加工温度200℃にて30μm厚のフィルムを成型した。得られたフィルムは幅2cm、縦10cmにカットした後、60℃、1時間熱処理を行った。また、比較サンプルとしてPLLA、可塑剤、アンチブロッキング剤よりなるフィルムおよび、PDLLA、可塑剤、アンチブロッキング剤よりなるフィルムを作製した。
フィルム作成1日後および4ヶ月後のフィルムの引張強度、引張弾性率、切断時の伸張率を引張り試験機にて室温にて測定した。また透明性(単位当たり)を測定した。結果を表5に示した。
切断時の伸張率:成型直後(1日後)の切断時の伸張率を4ヶ月後においても90%以上維持(室温)。
本発明のフィルムは成型直後の物性を4ヶ月後においても維持していた。
Claims (2)
- 結晶性ポリ乳酸、非結晶性ポリ乳酸および可塑剤から本質的になり、非結晶性ポリ乳酸が、結晶性ポリ乳酸と非結晶性ポリ乳酸との合計量の5〜33質量%、可塑剤が組成物全量の30質量%以下の割合で含まれる、ポリ乳酸樹脂組成物であって、該組成物をフィルムにしたときに、球晶径分布において直径1μm以下の球晶の個数割合が40%以上、最大球晶サイズが15μm以下であり、かつ該フィルムを60℃で1時間処理後の単位厚さ当たりのHAZE値が、0.45以下の値を有することを特徴とする、ポリ乳酸樹脂組成物。
- 請求項1に記載のポリ乳酸樹脂組成物を成形してなる成形品。
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