WO2012121135A1 - ポリクロロプレンラテックスの化学的安定性の評価方法 - Google Patents
ポリクロロプレンラテックスの化学的安定性の評価方法 Download PDFInfo
- Publication number
- WO2012121135A1 WO2012121135A1 PCT/JP2012/055340 JP2012055340W WO2012121135A1 WO 2012121135 A1 WO2012121135 A1 WO 2012121135A1 JP 2012055340 W JP2012055340 W JP 2012055340W WO 2012121135 A1 WO2012121135 A1 WO 2012121135A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- polychloroprene latex
- mass
- latex
- chemical stability
- polychloroprene
- Prior art date
Links
- 229920000126 latex Polymers 0.000 title claims abstract description 135
- 239000004816 latex Substances 0.000 title claims abstract description 134
- 229920001084 poly(chloroprene) Polymers 0.000 title claims abstract description 96
- 239000000126 substance Substances 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000001556 precipitation Methods 0.000 claims abstract description 33
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000007787 solid Substances 0.000 claims abstract description 21
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims abstract description 17
- 239000002244 precipitate Substances 0.000 claims abstract description 17
- 239000007864 aqueous solution Substances 0.000 claims description 34
- 238000011156 evaluation Methods 0.000 claims description 28
- YACLQRRMGMJLJV-UHFFFAOYSA-N chloroprene Chemical compound ClC(=C)C=C YACLQRRMGMJLJV-UHFFFAOYSA-N 0.000 claims description 26
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 24
- -1 alkali metal salt Chemical class 0.000 claims description 24
- 229920000642 polymer Polymers 0.000 claims description 20
- RSWGJHLUYNHPMX-ONCXSQPRSA-N abietic acid Chemical compound C([C@@H]12)CC(C(C)C)=CC1=CC[C@@H]1[C@]2(C)CCC[C@@]1(C)C(O)=O RSWGJHLUYNHPMX-ONCXSQPRSA-N 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 239000000920 calcium hydroxide Substances 0.000 claims description 13
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 13
- 229920001577 copolymer Polymers 0.000 claims description 11
- 229910052783 alkali metal Inorganic materials 0.000 claims description 8
- LIFLRQVHKGGNSG-UHFFFAOYSA-N 2,3-dichlorobuta-1,3-diene Chemical compound ClC(=C)C(Cl)=C LIFLRQVHKGGNSG-UHFFFAOYSA-N 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 4
- 239000000701 coagulant Substances 0.000 description 22
- 239000000047 product Substances 0.000 description 16
- 238000003756 stirring Methods 0.000 description 13
- 238000006116 polymerization reaction Methods 0.000 description 12
- 239000000203 mixture Substances 0.000 description 11
- 239000007788 liquid Substances 0.000 description 10
- 239000002245 particle Substances 0.000 description 10
- 230000015271 coagulation Effects 0.000 description 8
- 238000005345 coagulation Methods 0.000 description 8
- 239000003995 emulsifying agent Substances 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000007720 emulsion polymerization reaction Methods 0.000 description 7
- 239000000178 monomer Substances 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- RSWGJHLUYNHPMX-UHFFFAOYSA-N 1,4a-dimethyl-7-propan-2-yl-2,3,4,4b,5,6,10,10a-octahydrophenanthrene-1-carboxylic acid Chemical compound C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 239000001110 calcium chloride Substances 0.000 description 6
- 229910001628 calcium chloride Inorganic materials 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 description 6
- 238000007654 immersion Methods 0.000 description 6
- 239000002562 thickening agent Substances 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 5
- 230000001112 coagulating effect Effects 0.000 description 5
- 238000001035 drying Methods 0.000 description 5
- 229920001971 elastomer Polymers 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 239000005060 rubber Substances 0.000 description 5
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 4
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- 230000003712 anti-aging effect Effects 0.000 description 4
- 239000003963 antioxidant agent Substances 0.000 description 4
- 230000003078 antioxidant effect Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 230000008021 deposition Effects 0.000 description 4
- 239000010408 film Substances 0.000 description 4
- 239000011593 sulfur Substances 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 4
- 238000004073 vulcanization Methods 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 229910001424 calcium ion Inorganic materials 0.000 description 3
- 235000014113 dietary fatty acids Nutrition 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000001804 emulsifying effect Effects 0.000 description 3
- 239000000839 emulsion Substances 0.000 description 3
- 239000000194 fatty acid Substances 0.000 description 3
- 229930195729 fatty acid Natural products 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 3
- 150000004706 metal oxides Chemical class 0.000 description 3
- AZHYTXUTACODCW-UHFFFAOYSA-L n,n-dimethylcarbamodithioate;iron(2+) Chemical compound [Fe+2].CN(C)C([S-])=S.CN(C)C([S-])=S AZHYTXUTACODCW-UHFFFAOYSA-L 0.000 description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 3
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 3
- MHVJRKBZMUDEEV-UHFFFAOYSA-N (-)-ent-pimara-8(14),15-dien-19-oic acid Natural products C1CCC(C(O)=O)(C)C2C1(C)C1CCC(C=C)(C)C=C1CC2 MHVJRKBZMUDEEV-UHFFFAOYSA-N 0.000 description 2
- JAEZSIYNWDWMMN-UHFFFAOYSA-N 1,1,3-trimethylthiourea Chemical compound CNC(=S)N(C)C JAEZSIYNWDWMMN-UHFFFAOYSA-N 0.000 description 2
- WJFKNYWRSNBZNX-UHFFFAOYSA-N 10H-phenothiazine Chemical compound C1=CC=C2NC3=CC=CC=C3SC2=C1 WJFKNYWRSNBZNX-UHFFFAOYSA-N 0.000 description 2
- ZNRLMGFXSPUZNR-UHFFFAOYSA-N 2,2,4-trimethyl-1h-quinoline Chemical compound C1=CC=C2C(C)=CC(C)(C)NC2=C1 ZNRLMGFXSPUZNR-UHFFFAOYSA-N 0.000 description 2
- XOUQAVYLRNOXDO-UHFFFAOYSA-N 2-tert-butyl-5-methylphenol Chemical compound CC1=CC=C(C(C)(C)C)C(O)=C1 XOUQAVYLRNOXDO-UHFFFAOYSA-N 0.000 description 2
- 229930185605 Bisphenol Natural products 0.000 description 2
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-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
- 229920001479 Hydroxyethyl methyl cellulose Polymers 0.000 description 2
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- 150000004982 aromatic amines Chemical class 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
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000012986 chain transfer agent Substances 0.000 description 2
- MZGNSEAPZQGJRB-UHFFFAOYSA-N dimethyldithiocarbamic acid Chemical compound CN(C)C(S)=S MZGNSEAPZQGJRB-UHFFFAOYSA-N 0.000 description 2
- 239000012990 dithiocarbamate Substances 0.000 description 2
- WNAHIZMDSQCWRP-UHFFFAOYSA-N dodecane-1-thiol Chemical compound CCCCCCCCCCCCS WNAHIZMDSQCWRP-UHFFFAOYSA-N 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- ZOOODBUHSVUZEM-UHFFFAOYSA-N ethoxymethanedithioic acid Chemical compound CCOC(S)=S ZOOODBUHSVUZEM-UHFFFAOYSA-N 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 description 2
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 description 2
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 description 2
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 description 2
- 239000003999 initiator Substances 0.000 description 2
- OKJPEAGHQZHRQV-UHFFFAOYSA-N iodoform Chemical compound IC(I)I OKJPEAGHQZHRQV-UHFFFAOYSA-N 0.000 description 2
- MXYATHGRPJZBNA-KRFUXDQASA-N isopimaric acid Chemical compound [C@H]1([C@](CCC2)(C)C(O)=O)[C@@]2(C)[C@H]2CC[C@@](C=C)(C)CC2=CC1 MXYATHGRPJZBNA-KRFUXDQASA-N 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 229920000609 methyl cellulose Polymers 0.000 description 2
- 239000001923 methylcellulose Substances 0.000 description 2
- 235000010981 methylcellulose Nutrition 0.000 description 2
- 239000002736 nonionic surfactant Substances 0.000 description 2
- IWDCLRJOBJJRNH-UHFFFAOYSA-N p-cresol Chemical compound CC1=CC=C(O)C=C1 IWDCLRJOBJJRNH-UHFFFAOYSA-N 0.000 description 2
- 229950000688 phenothiazine Drugs 0.000 description 2
- 229920000259 polyoxyethylene lauryl ether Polymers 0.000 description 2
- 150000008442 polyphenolic compounds Chemical class 0.000 description 2
- 235000013824 polyphenols Nutrition 0.000 description 2
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000012991 xanthate Substances 0.000 description 2
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- 235000014692 zinc oxide Nutrition 0.000 description 2
- MHVJRKBZMUDEEV-APQLOABGSA-N (+)-Pimaric acid Chemical compound [C@H]1([C@](CCC2)(C)C(O)=O)[C@@]2(C)[C@H]2CC[C@](C=C)(C)C=C2CC1 MHVJRKBZMUDEEV-APQLOABGSA-N 0.000 description 1
- UXBFAGQTUAMQSX-PKUWUEBNSA-N (1R)-1,3-dimethyl-2-[2-(3-propan-2-ylphenyl)ethyl]cyclohexane-1-carboxylic acid Chemical compound CC(C)c1cccc(CCC2C(C)CCC[C@@]2(C)C(O)=O)c1 UXBFAGQTUAMQSX-PKUWUEBNSA-N 0.000 description 1
- PCPYTNCQOSFKGG-ONEGZZNKSA-N (1e)-1-chlorobuta-1,3-diene Chemical compound Cl\C=C\C=C PCPYTNCQOSFKGG-ONEGZZNKSA-N 0.000 description 1
- NQJDHQUUJULIEJ-MWDBYQCVSA-N (1s,4ar,4bs,7s)-7-ethyl-1,4a,7-trimethyl-3,4,4b,5,6,8,10,10a-octahydro-2h-phenanthrene-1-carboxylic acid Chemical compound C1([C@@](CCC2)(C)C(O)=O)[C@@]2(C)[C@H]2CC[C@@](CC)(C)CC2=CC1 NQJDHQUUJULIEJ-MWDBYQCVSA-N 0.000 description 1
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- NWFVONWTBGQHGT-UHFFFAOYSA-N 1,3-didodecylthiourea Chemical compound CCCCCCCCCCCCNC(=S)NCCCCCCCCCCCC NWFVONWTBGQHGT-UHFFFAOYSA-N 0.000 description 1
- VETPHHXZEJAYOB-UHFFFAOYSA-N 1-n,4-n-dinaphthalen-2-ylbenzene-1,4-diamine Chemical compound C1=CC=CC2=CC(NC=3C=CC(NC=4C=C5C=CC=CC5=CC=4)=CC=3)=CC=C21 VETPHHXZEJAYOB-UHFFFAOYSA-N 0.000 description 1
- HECLRDQVFMWTQS-RGOKHQFPSA-N 1755-01-7 Chemical compound C1[C@H]2[C@@H]3CC=C[C@@H]3[C@@H]1C=C2 HECLRDQVFMWTQS-RGOKHQFPSA-N 0.000 description 1
- KGRVJHAUYBGFFP-UHFFFAOYSA-N 2,2'-Methylenebis(4-methyl-6-tert-butylphenol) Chemical compound CC(C)(C)C1=CC(C)=CC(CC=2C(=C(C=C(C)C=2)C(C)(C)C)O)=C1O KGRVJHAUYBGFFP-UHFFFAOYSA-N 0.000 description 1
- YAJYJWXEWKRTPO-UHFFFAOYSA-N 2,3,3,4,4,5-hexamethylhexane-2-thiol Chemical compound CC(C)C(C)(C)C(C)(C)C(C)(C)S YAJYJWXEWKRTPO-UHFFFAOYSA-N 0.000 description 1
- CZNRFEXEPBITDS-UHFFFAOYSA-N 2,5-bis(2-methylbutan-2-yl)benzene-1,4-diol Chemical compound CCC(C)(C)C1=CC(O)=C(C(C)(C)CC)C=C1O CZNRFEXEPBITDS-UHFFFAOYSA-N 0.000 description 1
- JZODKRWQWUWGCD-UHFFFAOYSA-N 2,5-di-tert-butylbenzene-1,4-diol Chemical compound CC(C)(C)C1=CC(O)=C(C(C)(C)C)C=C1O JZODKRWQWUWGCD-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- HXIQYSLFEXIOAV-UHFFFAOYSA-N 2-tert-butyl-4-(5-tert-butyl-4-hydroxy-2-methylphenyl)sulfanyl-5-methylphenol Chemical compound CC1=CC(O)=C(C(C)(C)C)C=C1SC1=CC(C(C)(C)C)=C(O)C=C1C HXIQYSLFEXIOAV-UHFFFAOYSA-N 0.000 description 1
- GPNYZBKIGXGYNU-UHFFFAOYSA-N 2-tert-butyl-6-[(3-tert-butyl-5-ethyl-2-hydroxyphenyl)methyl]-4-ethylphenol Chemical compound CC(C)(C)C1=CC(CC)=CC(CC=2C(=C(C=C(CC)C=2)C(C)(C)C)O)=C1O GPNYZBKIGXGYNU-UHFFFAOYSA-N 0.000 description 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
- UZZYXZWSOWQPIS-UHFFFAOYSA-N 3-fluoro-5-(trifluoromethyl)benzaldehyde Chemical compound FC1=CC(C=O)=CC(C(F)(F)F)=C1 UZZYXZWSOWQPIS-UHFFFAOYSA-N 0.000 description 1
- BTXXTMOWISPQSJ-UHFFFAOYSA-N 4,4,4-trifluorobutan-2-one Chemical compound CC(=O)CC(F)(F)F BTXXTMOWISPQSJ-UHFFFAOYSA-N 0.000 description 1
- UJAWGGOCYUPCPS-UHFFFAOYSA-N 4-(2-phenylpropan-2-yl)-n-[4-(2-phenylpropan-2-yl)phenyl]aniline Chemical compound C=1C=C(NC=2C=CC(=CC=2)C(C)(C)C=2C=CC=CC=2)C=CC=1C(C)(C)C1=CC=CC=C1 UJAWGGOCYUPCPS-UHFFFAOYSA-N 0.000 description 1
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- MXYATHGRPJZBNA-UHFFFAOYSA-N 4-epi-isopimaric acid Natural products C1CCC(C(O)=O)(C)C2C1(C)C1CCC(C=C)(C)CC1=CC2 MXYATHGRPJZBNA-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- BQACOLQNOUYJCE-FYZZASKESA-N Abietic acid Natural products CC(C)C1=CC2=CC[C@]3(C)[C@](C)(CCC[C@@]3(C)C(=O)O)[C@H]2CC1 BQACOLQNOUYJCE-FYZZASKESA-N 0.000 description 1
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- UDIPTWFVPPPURJ-UHFFFAOYSA-M Cyclamate Chemical compound [Na+].[O-]S(=O)(=O)NC1CCCCC1 UDIPTWFVPPPURJ-UHFFFAOYSA-M 0.000 description 1
- QUUCYKKMFLJLFS-UHFFFAOYSA-N Dehydroabietan Natural products CC1(C)CCCC2(C)C3=CC=C(C(C)C)C=C3CCC21 QUUCYKKMFLJLFS-UHFFFAOYSA-N 0.000 description 1
- NFWKVWVWBFBAOV-UHFFFAOYSA-N Dehydroabietic acid Natural products OC(=O)C1(C)CCCC2(C)C3=CC=C(C(C)C)C=C3CCC21 NFWKVWVWBFBAOV-UHFFFAOYSA-N 0.000 description 1
- FVIGODVHAVLZOO-UHFFFAOYSA-N Dixanthogen Chemical compound CCOC(=S)SSC(=S)OCC FVIGODVHAVLZOO-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- PDQAZBWRQCGBEV-UHFFFAOYSA-N Ethylenethiourea Chemical compound S=C1NCCN1 PDQAZBWRQCGBEV-UHFFFAOYSA-N 0.000 description 1
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- AVXURJPOCDRRFD-UHFFFAOYSA-N Hydroxylamine Chemical compound ON AVXURJPOCDRRFD-UHFFFAOYSA-N 0.000 description 1
- OYHQOLUKZRVURQ-HZJYTTRNSA-N Linoleic acid Chemical compound CCCCC\C=C/C\C=C/CCCCCCCC(O)=O OYHQOLUKZRVURQ-HZJYTTRNSA-N 0.000 description 1
- 239000004594 Masterbatch (MB) Substances 0.000 description 1
- KGMSWPSAVZAMKR-UHFFFAOYSA-N Me ester-3, 22-Dihydroxy-29-hopanoic acid Natural products C1CCC(C(O)=O)(C)C2C1(C)C1CCC(=C(C)C)C=C1CC2 KGMSWPSAVZAMKR-UHFFFAOYSA-N 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- KFFQABQEJATQAT-UHFFFAOYSA-N N,N'-dibutylthiourea Chemical compound CCCCNC(=S)NCCCC KFFQABQEJATQAT-UHFFFAOYSA-N 0.000 description 1
- FLVIGYVXZHLUHP-UHFFFAOYSA-N N,N'-diethylthiourea Chemical compound CCNC(=S)NCC FLVIGYVXZHLUHP-UHFFFAOYSA-N 0.000 description 1
- UTGQNNCQYDRXCH-UHFFFAOYSA-N N,N'-diphenyl-1,4-phenylenediamine Chemical compound C=1C=C(NC=2C=CC=CC=2)C=CC=1NC1=CC=CC=C1 UTGQNNCQYDRXCH-UHFFFAOYSA-N 0.000 description 1
- FCSHMCFRCYZTRQ-UHFFFAOYSA-N N,N'-diphenylthiourea Chemical compound C=1C=CC=CC=1NC(=S)NC1=CC=CC=C1 FCSHMCFRCYZTRQ-UHFFFAOYSA-N 0.000 description 1
- XQVWYOYUZDUNRW-UHFFFAOYSA-N N-Phenyl-1-naphthylamine Chemical compound C=1C=CC2=CC=CC=C2C=1NC1=CC=CC=C1 XQVWYOYUZDUNRW-UHFFFAOYSA-N 0.000 description 1
- OUBMGJOQLXMSNT-UHFFFAOYSA-N N-isopropyl-N'-phenyl-p-phenylenediamine Chemical compound C1=CC(NC(C)C)=CC=C1NC1=CC=CC=C1 OUBMGJOQLXMSNT-UHFFFAOYSA-N 0.000 description 1
- KGMSWPSAVZAMKR-ONCXSQPRSA-N Neoabietic acid Chemical compound [C@H]1([C@](CCC2)(C)C(O)=O)[C@@]2(C)[C@H]2CCC(=C(C)C)C=C2CC1 KGMSWPSAVZAMKR-ONCXSQPRSA-N 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- VBIIFPGSPJYLRR-UHFFFAOYSA-M Stearyltrimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCC[N+](C)(C)C VBIIFPGSPJYLRR-UHFFFAOYSA-M 0.000 description 1
- JYSSGQITKNFRQE-UHFFFAOYSA-N [3-(4-anilinoanilino)-2-hydroxypropyl] 2-methylprop-2-enoate Chemical compound C1=CC(NCC(O)COC(=O)C(=C)C)=CC=C1NC1=CC=CC=C1 JYSSGQITKNFRQE-UHFFFAOYSA-N 0.000 description 1
- ZOIORXHNWRGPMV-UHFFFAOYSA-N acetic acid;zinc Chemical compound [Zn].CC(O)=O.CC(O)=O ZOIORXHNWRGPMV-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 125000002877 alkyl aryl group Chemical group 0.000 description 1
- 150000008052 alkyl sulfonates Chemical class 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 239000012874 anionic emulsifier Substances 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 1
- 229910002113 barium titanate Inorganic materials 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 1
- 235000010354 butylated hydroxytoluene Nutrition 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 235000011148 calcium chloride Nutrition 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- DKVNPHBNOWQYFE-UHFFFAOYSA-N carbamodithioic acid Chemical compound NC(S)=S DKVNPHBNOWQYFE-UHFFFAOYSA-N 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- ZOUQIAGHKFLHIA-UHFFFAOYSA-L copper;n,n-dimethylcarbamodithioate Chemical compound [Cu+2].CN(C)C([S-])=S.CN(C)C([S-])=S ZOUQIAGHKFLHIA-UHFFFAOYSA-L 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- NFWKVWVWBFBAOV-MISYRCLQSA-N dehydroabietic acid Chemical compound OC(=O)[C@]1(C)CCC[C@]2(C)C3=CC=C(C(C)C)C=C3CC[C@H]21 NFWKVWVWBFBAOV-MISYRCLQSA-N 0.000 description 1
- 229940118781 dehydroabietic acid Drugs 0.000 description 1
- 238000007033 dehydrochlorination reaction Methods 0.000 description 1
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 1
- WLCFKPHMRNPAFZ-UHFFFAOYSA-M didodecyl(dimethyl)azanium;chloride Chemical compound [Cl-].CCCCCCCCCCCC[N+](C)(C)CCCCCCCCCCCC WLCFKPHMRNPAFZ-UHFFFAOYSA-M 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical class OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000007323 disproportionation reaction Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 150000002019 disulfides Chemical class 0.000 description 1
- 150000004659 dithiocarbamates Chemical class 0.000 description 1
- 229960002377 dixanthogen Drugs 0.000 description 1
- DDXLVDQZPFLQMZ-UHFFFAOYSA-M dodecyl(trimethyl)azanium;chloride Chemical compound [Cl-].CCCCCCCCCCCC[N+](C)(C)C DDXLVDQZPFLQMZ-UHFFFAOYSA-M 0.000 description 1
- DECIPOUIJURFOJ-UHFFFAOYSA-N ethoxyquin Chemical compound N1C(C)(C)C=C(C)C2=CC(OCC)=CC=C21 DECIPOUIJURFOJ-UHFFFAOYSA-N 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- HAFJKKYURCIBBG-UHFFFAOYSA-N formaldehyde;naphthalene-1-sulfonic acid;sodium Chemical compound [Na].O=C.C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 HAFJKKYURCIBBG-UHFFFAOYSA-N 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- KWLMIXQRALPRBC-UHFFFAOYSA-L hectorite Chemical compound [Li+].[OH-].[OH-].[Na+].[Mg+2].O1[Si]2([O-])O[Si]1([O-])O[Si]([O-])(O1)O[Si]1([O-])O2 KWLMIXQRALPRBC-UHFFFAOYSA-L 0.000 description 1
- 229910000271 hectorite Inorganic materials 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 125000001165 hydrophobic group Chemical group 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- 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 1
- 235000020778 linoleic acid Nutrition 0.000 description 1
- OYHQOLUKZRVURQ-IXWMQOLASA-N linoleic acid Natural products CCCCC\C=C/C\C=C\CCCCCCCC(O)=O OYHQOLUKZRVURQ-IXWMQOLASA-N 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 229910052901 montmorillonite Inorganic materials 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 239000012875 nonionic emulsifier Substances 0.000 description 1
- ZWWQICJTBOCQLA-UHFFFAOYSA-N o-propan-2-yl (propan-2-yloxycarbothioyldisulfanyl)methanethioate Chemical compound CC(C)OC(=S)SSC(=S)OC(C)C ZWWQICJTBOCQLA-UHFFFAOYSA-N 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 150000001451 organic peroxides Chemical class 0.000 description 1
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 1
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 239000003505 polymerization initiator Substances 0.000 description 1
- 229920001289 polyvinyl ether Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- HIEHAIZHJZLEPQ-UHFFFAOYSA-M sodium;naphthalene-1-sulfonate Chemical compound [Na+].C1=CC=C2C(S(=O)(=O)[O-])=CC=CC2=C1 HIEHAIZHJZLEPQ-UHFFFAOYSA-M 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 229910052714 tellurium Inorganic materials 0.000 description 1
- PORWMNRCUJJQNO-UHFFFAOYSA-N tellurium atom Chemical compound [Te] PORWMNRCUJJQNO-UHFFFAOYSA-N 0.000 description 1
- CIHOLLKRGTVIJN-UHFFFAOYSA-N tert‐butyl hydroperoxide Chemical compound CC(C)(C)OO CIHOLLKRGTVIJN-UHFFFAOYSA-N 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- LMYRWZFENFIFIT-UHFFFAOYSA-N toluene-4-sulfonamide Chemical compound CC1=CC=C(S(N)(=O)=O)C=C1 LMYRWZFENFIFIT-UHFFFAOYSA-N 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- 239000004246 zinc acetate Substances 0.000 description 1
- 235000013904 zinc acetate Nutrition 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
- 235000005074 zinc chloride Nutrition 0.000 description 1
- RKQOSDAEEGPRER-UHFFFAOYSA-L zinc diethyldithiocarbamate Chemical compound [Zn+2].CCN(CC)C([S-])=S.CCN(CC)C([S-])=S RKQOSDAEEGPRER-UHFFFAOYSA-L 0.000 description 1
- NEYNBSGIXOOZGZ-UHFFFAOYSA-L zinc;butoxymethanedithioate Chemical compound [Zn+2].CCCCOC([S-])=S.CCCCOC([S-])=S NEYNBSGIXOOZGZ-UHFFFAOYSA-L 0.000 description 1
- AUMBZPPBWALQRO-UHFFFAOYSA-L zinc;n,n-dibenzylcarbamodithioate Chemical compound [Zn+2].C=1C=CC=CC=1CN(C(=S)[S-])CC1=CC=CC=C1.C=1C=CC=CC=1CN(C(=S)[S-])CC1=CC=CC=C1 AUMBZPPBWALQRO-UHFFFAOYSA-L 0.000 description 1
- LVPSBELIABHESA-UHFFFAOYSA-L zinc;n,n-dibutylcarbamothioate Chemical compound [Zn+2].CCCCN(C([O-])=S)CCCC.CCCCN(C([O-])=S)CCCC LVPSBELIABHESA-UHFFFAOYSA-L 0.000 description 1
- BUOWQAOYRYWTTQ-UHFFFAOYSA-L zinc;n,n-dimethylcarbamate Chemical compound [Zn+2].CN(C)C([O-])=O.CN(C)C([O-])=O BUOWQAOYRYWTTQ-UHFFFAOYSA-L 0.000 description 1
- SZNCKQHFYDCMLZ-UHFFFAOYSA-L zinc;propan-2-yloxymethanedithioate Chemical compound [Zn+2].CC(C)OC([S-])=S.CC(C)OC([S-])=S SZNCKQHFYDCMLZ-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/02—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using precipitation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
- C08C1/00—Treatment of rubber latex
- C08C1/14—Coagulation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
- C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
- C08J3/05—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media from solid polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/10—Metal compounds
- C08K3/105—Compounds containing metals of Groups 1 to 3 or of Groups 11 to 13 of the Periodic Table
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L11/00—Compositions of homopolymers or copolymers of chloroprene
- C08L11/02—Latex
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2311/00—Characterised by the use of homopolymers or copolymers of chloroprene
- C08J2311/02—Latex
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/28—Nitrogen-containing compounds
- C08K2003/287—Calcium, strontium or barium nitrates
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T436/00—Chemistry: analytical and immunological testing
- Y10T436/19—Halogen containing
- Y10T436/193333—In aqueous solution
Definitions
- the present invention relates to a method for evaluating the chemical stability of polychloroprene latex. More specifically, the present invention relates to a method for evaluating the chemical stability of polychloroprene latex used in immersion molded products such as gloves, boots and balloons.
- Polychloroprene latex is used as a material for immersion molded products such as medical gloves, laboratory gloves, catheters, rubber boots, rubber threads and balloons. These dip-molded products are mainly manufactured by a method called a coagulating liquid method using a ceramic or metal three-dimensional mold. Specifically, by immersing a mold coated with a coagulating liquid having an action of coagulating polychloroprene latex in a polychloroprene latex composition containing sulfur, a vulcanization accelerator, etc., and then lifting and drying by heating, A film is formed on the surface of the mold. Then, by removing this film from the mold, a product having a predetermined shape is obtained.
- the occurrence of coagulum when adjusting the polychloroprene latex composition, and the occurrence of cracks and pinholes in the final product may be a problem.
- it is effective to manage the stability (chemical stability) of polychloroprene latex to chemicals. For example, if the chemical stability of the polychloroprene latex is too low, coagulum may be generated when a polychloroprene latex composition is formulated by adding sulfur or a vulcanization accelerator, and the chemical stability is low. If it is too high, a uniform film is not formed on the surface of the mold, and cracks and pinholes are likely to occur.
- the chemical stability of rubber latex is evaluated based on the concentration and dry mass of a coagulum formed by mixing latex and an aqueous inorganic salt solution (see Patent Documents 1 to 4).
- a coagulum formed by mixing latex and an aqueous inorganic salt solution see Patent Documents 1 to 4.
- a polymer latex obtained by emulsion polymerization of styrene, ethyl acrylate, butyl acrylate or methyl methacrylate. 5 ml was added, and the resulting aggregate was dried and weighed. And the mass% with respect to the polymer of an aggregate is calculated
- Patent Document 2 5 g of 0.1N-calcium chloride aqueous solution is added dropwise with stirring to 100 g of copolymer latex having a solid content concentration of 48% by mass, and the chemical stability is determined from the amount of coagulum formed. A method for evaluating sex is described. Further, in Patent Document 3, 10% of a 7% by weight aqueous potassium hydroxide solution is dropped into 100 g of a copolymer latex (solid content: 45% by weight) that has been filtered in advance while stirring, and the chemical amount is determined from the amount of aggregates produced. A method for assessing stability is described.
- Patent Documents 1 to 4 are methods for evaluating latex of styrene butadiene rubber (SBR) or acrylonitrol-butadiene rubber (NBR), and cannot be applied to polychloroprene latex. There is a problem.
- SBR styrene butadiene rubber
- NBR acrylonitrol-butadiene rubber
- the polychloroprene latex for dip-molded products is stable against alkalinity because it is produced by emulsion polymerization using alkali-soluble rosin acid as an emulsifier.
- Polychloroprene latex contains sodium hydroxide and water in order to prevent the pH from gradually changing due to the dehydrochlorination reaction of the chloroprene polymer when stored for a long time in an environment exposed to sunlight or high temperature. Many alkaline substances such as calcium oxide are blended. Therefore, the polychloroprene latex has good stability with respect to the aqueous potassium hydroxide solution used in Patent Document 3, and a coagulated product is hardly generated even when added.
- the main object of the present invention is to provide a method for evaluating the chemical stability of polychloroprene latex, which can evaluate the stability of polychloroprene to chemicals with high accuracy.
- the method for evaluating the chemical stability of the polychloroprene latex according to the present invention includes a polychloroprene latex having a solid content of 45 to 65% by mass, a calcium hydroxide aqueous solution or a calcium nitrate aqueous solution having a concentration of 0.05 to 0.40% by mass.
- 50 to 150 g-wet of an aqueous calcium hydroxide solution or an aqueous calcium nitrate solution can be added to 100 g-wet of polychloroprene latex.
- “-wet” indicates “wet mass”.
- the polychloroprene latex may contain rosin acid and / or an alkali metal salt of rosin acid.
- the chloroprene polymer in the polychloroprene latex is, for example, a copolymer of chloroprene and 2,3-dichloro-1,3-butadiene, and its toluene insoluble content can be, for example, 70 to 99%.
- the evaluation method evaluates the stability (chemical stability) of polychloroprene latex to chemicals, and adds a specific coagulant aqueous solution to polychloroprene latex to produce precipitates From this amount, the precipitation rate is calculated. Specifically, the following steps S1 to S3 are performed.
- Step S1 Coagulant addition process
- a calcium hydroxide aqueous solution or a calcium nitrate aqueous solution having a concentration of 0.05 to 0.40 mass% is added as a coagulant aqueous solution to a polychloroprene latex having a solid content concentration of 45 to 65 mass%.
- the precipitation rate is too high, and the precipitation rate may vary.
- the distance between the latex particles increases, and the destabilized particles are less likely to aggregate with each other, so that a precipitate is hardly generated.
- the distance between the latex particles is short, so that the added calcium ions are consumed for aggregation of latex particles in the vicinity of the addition position and do not diffuse throughout. In such a state, the amount of precipitates increases or conversely decreases, so the reproducibility of measured values decreases.
- the solid content concentration of the polychloroprene latex to be evaluated is less than 45% by mass, the value of the precipitation rate is too low, and the difference in the precipitation rate between different samples (polychloroprene latex) is reduced. It becomes difficult to compare chemical stability.
- the solid content concentration of the polychloroprene latex exceeds 65% by mass, it becomes difficult to mix the latex and the coagulant aqueous solution instantaneously and uniformly, so that the measurement accuracy of the precipitation rate decreases.
- the addition amount of the calcium hydroxide aqueous solution and the calcium nitrate aqueous solution as the coagulant aqueous solution is not particularly limited, but is 50 to 150 g-wet with respect to 100 g-wet (wet mass) of the polychloroprene latex to be evaluated. It is preferable to do. Thereby, the precision of the measured value of a precipitation rate can be improved.
- the method of adding the aqueous calcium hydroxide solution or the aqueous calcium nitrate solution is not particularly limited, but it is desirable to drop these aqueous solutions dropwise from the burette while stirring the polychloroprene latex.
- the stirring speed is too high, specifically, if the stirring speed exceeds 800 rpm, the polychloroprene latex may be scattered.
- the stirring speed is too slow, specifically, if the stirring speed is less than 200 rpm, uniform mixing cannot be performed, which causes variation in the precipitation rate. Therefore, the stirring speed of the polychloroprene latex is preferably 200 to 800 rpm.
- the temperature of the polychloroprene latex and the aqueous calcium hydroxide solution or the aqueous calcium nitrate solution is preferably controlled to be constant, but when these coagulant aqueous solutions are used, the temperature ranges from 5 ° C to 35 ° C. Has little effect on the measured deposition rate. Therefore, when the measurement room temperature is 5 to 35 ° C., it is not necessary to cool or heat the polychloroprene latex and the calcium hydroxide aqueous solution or the calcium nitrate aqueous solution.
- Step S2 Filtration drying process
- the produced precipitate is collected by filtration, and its dry mass is measured.
- the method for collecting and collecting the precipitate is not particularly limited, and for example, a filter paper, a wire mesh having a mesh size of 300 ⁇ m (50 mesh) to 75 ⁇ m (200 mesh), or a cloth filter can be used.
- the deposit adhering to the stirring blade or the wall of the container may be collected with tweezers or the like.
- the precipitate collected by these methods is washed with water, dried at a temperature higher than 100 ° C., which is the evaporation temperature of water, and the dry mass is measured.
- Step S3 Precipitation rate calculation step
- the precipitation rate (%) is calculated by the following formula 2, and the chemical stability of the polychloroprene latex is evaluated from the calculated value. That is, the lower the precipitation rate, the more difficult it is for the latex particles to aggregate, so the evaluation is "high chemical stability", and the higher the precipitation rate, the easier the latex particles to aggregate, Evaluated as “low chemical stability”.
- A is the dry mass (g) of the precipitate
- B is the mass (g) of the polychloroprene latex
- C is the solid content concentration (% by mass) of the polychloroprene latex.
- the “polychloroprene latex” to be evaluated in the evaluation method of the present embodiment is a latex (emulsion) obtained by emulsifying a chloroprene polymer in water via an emulsifier.
- the chloroprene polymer refers to a homopolymer of 2-chloro-1,3-butadiene (hereinafter referred to as chloroprene) or a copolymer of chloroprene and other monomers.
- Examples of the monomer copolymerizable with chloroprene include 2,3-dichloro-1,3-butadiene, 1-chloro-1,3-butadiene, sulfur, methacrylic acid and esters thereof, acrylic acid and The ester is mentioned, These may be used independently and may use 2 or more types together.
- the chloroprene polymer contained in the polychloroprene latex is preferably a copolymer of chloroprene and 2,3-dichloro-1,3-butadiene. Sex can be imparted.
- the chloroprene polymer is a copolymer of chloroprene and 2,3-dichloro-1,3-butadiene, out of a total of 100 parts by mass of monomers, 2,3-dichloro-1,3 -The amount of butadiene charged is preferably 2 to 20 parts by mass.
- Polychloroprene latex in which 2,3-dichloro-1,3-butadiene is used within this range has small variations in the amount of precipitation in chemical stability evaluation, and data with good reproducibility can be obtained.
- the chloroprene polymer contained in the polychloroprene latex is obtained by radical emulsion polymerization of chloroprene alone or chloroprene and other monomers in water using an emulsifier.
- the polymerization temperature at that time is not particularly limited, but is preferably 5 to 50 ° C. in order to carry out the polymerization reaction smoothly.
- the emulsifier used for emulsion polymerization is not particularly limited, and can be appropriately selected and used.
- Specific examples of the anionic emulsifier include carboxylic acid type and sulfuric acid ester type.
- nonionic emulsifier examples include polyvinyl alcohol or a copolymer thereof (for example, a copolymer with acrylamide), polyvinyl ether or a copolymer thereof (for example, a copolymer with maleic acid), polyoxy Examples include ethylene alkyl ether, polyoxyethylene alkylphenol, sorbitan fatty acid ester, and polyoxyethylene acyl ester.
- cationic emulsifier examples include aliphatic amine salts and aliphatic quaternary ammonium salts such as octadecyltrimethylammonium chloride, dodecyltrimethylammonium chloride and dilauryldimethylammonium chloride.
- the chloroprene latex targeted by the evaluation method of this embodiment preferably contains rosin acid and / or an alkali metal salt of rosin acid.
- the precipitates are difficult to adhere to a test instrument such as a stirrer, so that the deposits are less lost and the chemical stability can be evaluated with high accuracy.
- ⁇ rosin acid '' is a mixture of resin acid and fatty acid, etc., and its composition is different in rosin collection methods classified as gum rosin, wood rosin, tall rosin, etc., pine production area and tree species, distillation purification, It varies depending on the leveling (disproportionation) reaction.
- Resin acids contained in rosin acid include abietic acid, neoabietic acid, parastrinic acid, pimaric acid, isopimaric acid, dehydroabietic acid, dihydropimaric acid, dihydroisopimaric acid, secodehydroabietic acid, and dihydroabietic acid. Can be mentioned.
- Examples of fatty acids contained in rosin acid include oleic acid and linoleic acid.
- the component composition of rosin acid contained in the polychloroprene latex to be evaluated is not particularly limited.
- the blending amount of rosin acid and / or its alkali metal salt at the time of emulsion polymerization is preferably 0.5 to 20 parts by mass with respect to 100 parts by mass of the initial charged monomers.
- Polychloroprene latex containing less than 0.5 parts by mass of rosin acid and / or alkali metal salt thereof is likely to generate precipitates only by mechanical shearing before adding a coagulant, and evaluation of chemical stability Can be difficult.
- polychloroprene latex in which the blending amount of rosin acid and / or alkali metal salt thereof exceeds 20 parts by mass is likely to foam during stirring, there is a possibility that variations in the measured value of the precipitation amount will increase.
- the initiator used for the emulsion polymerization is not particularly limited, and for example, a persulfate such as potassium persulfate or an organic peroxide such as tertiary butyl hydroperoxide can be used.
- the type of chain transfer agent is not particularly limited, and those usually used for emulsion polymerization of chloroprene can be used.
- long chain alkyl mercaptans such as n-dodecyl mercaptan and tert-dodecyl mercaptan
- dialkylxanthogen disulfides such as diisopropylxanthogen disulfide and diethylxanthogen disulfide
- chain transfer agents such as iodoform
- the polymerization terminator is not particularly limited, and for example, 2,6-tertiarybutyl-4-methylphenol, phenothiazine, hydroxyamine and the like can be used.
- the final polymerization rate is not particularly limited, but can be arbitrarily adjusted to 70 to 100%.
- the removal of the unreacted monomer (demonomer) may be performed by a known method such as heating under reduced pressure.
- the polymer structure of the chloroprene polymer is not particularly limited, but the chloroprene polymer obtained by arbitrarily selecting the polymerization temperature, polymerization initiator, chain transfer agent, polymerization terminator, polymerization rate, etc. It is possible to control the molecular weight, molecular weight distribution, gel content, molecular terminal structure, crystallization speed, and the like.
- the chloroprene polymer contained in the polychloroprene latex to be evaluated preferably has a toluene insoluble content (gel content) of 70 to 99% by mass. Accurate evaluation is possible.
- the latex sample with few toluene insolubles has high adhesiveness, when evaluating chemical stability, a deposit tends to adhere to a stirring blade, and the dispersion
- the polychloroprene latex that is the target of the chemical stability evaluation method of the present embodiment produces immersion molded products such as medical gloves, laboratory gloves, catheters, rubber boots, rubber threads, balloons, etc., by the coagulation solution method. Used when. In the coagulation liquid method, a latex composition in which sulfur, a metal oxide, a thickener, a vulcanization accelerator, an antiaging agent, a filler and the like are blended with polychloroprene latex is used.
- metal oxide blended in the polychloroprene latex examples include zinc oxide (zinc white) and magnesium oxide.
- the metal oxide may be blended in the powder state when the viscosity of the chloroprene latex is high, but it is preferable to blend after emulsifying and dispersing in water using an emulsifier.
- the thickener examples include polyvinyl alcohol (PVA), methyl cellulose (MC), hydroxyethyl methyl cellulose (HEMC), hydroxypropyl methyl cellulose (HPMC), carboxymethyl cellulose (CMC), polyacrylic acid type, polyacrylamide type, HEUR.
- PVA polyvinyl alcohol
- MC methyl cellulose
- HEMC hydroxyethyl methyl cellulose
- HPMC hydroxypropyl methyl cellulose
- CMC carboxymethyl cellulose
- polyacrylic acid type examples of the thickener
- organic thickeners such as a system (a polymer in which both ends of polyethylene oxide are end-capped with hydrophobic groups), and inorganic thickeners such as silicate compounds such as hectorite and montmorillonite.
- a HUR thickener is suitable because a large thickening effect can be obtained with a small addition amount and the viscosity stability after blending is excellent.
- vulcanization accelerator examples include thiourea, dithiocarbamate and xanthate.
- Specific examples of the thiourea compound include ethylenethiourea, dibutylthiourea, dilaurylthiourea, N, N′-diphenylthiourea, trimethylthiourea (TMU), N, N′-diethylthiourea (EUR), and the like.
- dithiocarbamates include: zinc dimethylcarbamate, zinc diethyldithiocarbamate, zinc dibutylthiocarbamate, zinc N-pentamethylenedithiocarbamate, zinc dibenzyldithiocarbamate, copper (II) dimethyldithiocarbamate, iron dimethyldithiocarbamate (III), tellurium dimethyldithiocarbamate (IV) and the like.
- xanthates include zinc butyl xanthate, zinc isopropyl xanthate, gallium (III) ethyl xanthate, and the like.
- Anti-aging agents include amine-ketone type, aromatic amine type, monophenol type, bisphenol type, polyphenol type and the like.
- Specific examples of the amine ketone antioxidant include 2,2,4-trimethyl-1,2-dihydroquinoline polymer, 6-ethoxy-1,2-dihydro-2,2,4-trimethylquinoline, diphenylamine, and the like.
- a reaction product of acetone is exemplified.
- aromatic amine type antioxidant examples include N-phenyl-1-naphthylamine, octylated diphenylamine, 4,4′-bis ( ⁇ , ⁇ -dimethylbenzyl) diphenylamine, p- (p-toluenesulfonylamide) ) Diphenylamine, N, N'-di-2-naphthyl-p-phenylenediamine, N, N'-diphenyl-p-phenylenediamine, N-phenyl-N'-isopropyl-p-phenylenediamine, N-phenyl-N Examples include '-(1,3-dimethylbutyl) -p-phenylenediamine, N-phenyl-N'-(3-methacryloyloxy-2-hydroxypropyl) -p-phenylenediamine, and the like.
- the monophenol antioxidant examples include 2,6-di-tert-butyl-4-methylphenol, mono (or di- or tri)-( ⁇ -methylbenzyl) phenol, and the like.
- Specific examples of the bisphenol anti-aging agent include, for example, 2,2-methylenebis (4-ethyl-6-tert-butylphenol), 2,2′-methylenebis (4-methyl-6-tert-butylphenol), 4,4 Examples include '-butylidenebis (3-methyl-6-tert-butylphenol), 4,4'-thiobis (3-methyl-6-tert-butylphenol), butylated products of p-cresol and dicyclopentadiene. .
- polyphenol-based antioxidant examples include 2,5-di-tert-butylhydroquinone and 2,5-di-tert-amylhydroquinone.
- filler for example, aluminum hydroxide, talc, mica, sericite, kaolin, bentonite, silica, shirasu balloon, calcium carbonate, barium sulfate, barium titanate and the like can be blended.
- a coagulating liquid for example, inorganic compounds such as calcium nitrate, aluminum chloride, zinc chloride, calcium chloride and zinc acetate, or organic acids such as formic acid and acetic acid.
- inorganic compounds such as calcium nitrate, aluminum chloride, zinc chloride, calcium chloride and zinc acetate, or organic acids such as formic acid and acetic acid.
- a solution in which is dissolved in water and / or alcohol is used.
- these coagulation liquids are applied to the mold surface and then dried to form a coagulant layer. At that time, if the coagulant concentration is low, the coagulant uniformly adheres to the entire mold surface. Can not be allowed to dry or the drying time becomes longer.
- the concentration of the coagulant in the coagulation liquid is increased to 5 to 50% by mass.
- a high-concentration coagulating liquid has too strong ability to precipitate the polymer component in the polychloroprene latex, so that it is not possible to sensitively discriminate fluctuations in chemical stability. That is, the coagulation liquid used in the manufacturing process of the dip-molded product cannot be used as it is for the evaluation of chemical stability.
- calcium hydroxide used as a coagulant in the evaluation method of the present embodiment is not used in the manufacturing process of the immersion molded product because of its low solubility in water.
- a calcium hydroxide aqueous solution or a calcium nitrate aqueous solution having a concentration of 0.05 to 0.40% by mass is added to a polychloroprene latex having a solid content concentration of 45 to 65% by mass. Therefore, there is little variation in measured values and workability is excellent. As a result, the chemical stability of polychloroprene latex can be easily and accurately evaluated.
- Nonionic surfactant polyoxyethylene lauryl ether (Emulgen 150, manufactured by Kao Corporation): 0.9 parts by mass was added to the polymerization solution, and unreacted monomers were removed under reduced pressure. Thereafter, water was further evaporated under reduced pressure to perform concentration to obtain polychloroprene latex (latex A) having a solid content concentration of 40.0% by mass, 55.0% by mass, and 70.0% by mass. About each polychloroprene latex, when gel content (toluene insoluble content) was measured, all were 94 mass% irrespective of the density
- Solid content concentration The solid content concentration (% by mass) was determined by the following mathematical formula 3.
- a is the mass (g) of an aluminum dish
- b is the mass (g) when 2 ml of polychloroprene latex is put in this dish
- c is 125 ° C. of the dish containing polychloroprene latex. The mass (g) after drying for 1 hour.
- the gel content was determined by the following mathematical formula 4.
- d is a value (g) obtained by lyophilizing and weighing polychloroprene latex.
- E is a polychloroprene latex dissolved in toluene at 23 ° C. for 20 hours and adjusted to 0.6% by mass, separated by a centrifuge, and further separated by a 200 mesh wire mesh. It is the value (g) measured after drying in an atmosphere at 110 ° C. for 1 hour after air drying.
- Latex B should have a lower chemical stability and a higher precipitation rate than latex A because it contains less nonionic surfactant, but as shown in Table 2, the coagulant contains calcium chloride.
- the evaluation methods of Comparative Examples 1 to 4 using No. 1 there was no difference in the precipitation rate of Latex A and Latex B.
- the evaluation methods of Examples 1 to 8 shown in Table 1 there was a difference in the precipitation rate of latex A and latex B, and chemical stability could be evaluated.
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Pathology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Dispersion Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
Description
また、ポリクロロプレンラテックスは、ロジン酸及び/又はロジン酸のアルカリ金属塩を含有していてもよい。
更に、ポリクロロプレンラテックス中のクロロプレン重合体は、例えばクロロプレン及び2,3-ジクロロ-1,3-ブタジエンの共重合体であり、そのトルエン不溶分は例えば70~99%とすることができる。
本発明の実施形態に係る評価方法は、ポリクロロプレンラテックスの化学薬品に対する安定性(化学的安定性)を評価するものであり、ポリクロロプレンラテックスに特定の凝固剤水溶液を添加し、生成する析出物の量から析出率を算出する。具体的には、以下に示すステップS1~S3を行う。
本実施形態の評価方法では、先ず、固形分濃度45~65質量%のポリクロロプレンラテックスに、凝固剤水溶液として濃度0.05~0.40質量%の水酸化カルシウム水溶液又は硝酸カルシウム水溶液を添加する。その際、水酸化カルシウム及び硝酸カルシウム以外の凝固剤を使用すると、析出速度が速すぎて、析出率にばらつきが生じる虞がある。なお、析出速度及びポリクロロプレンラテックスへの分散性の観点から、凝固剤には水酸化カルシウムを使用することが好ましく、これにより算出される析出率のばらつきを少なくすることができる。
次に、生成した析出物を濾過回収し、その乾燥質量を測定する。析出物の濾過回収方法は、特に限定されるものではないが、例えば、濾紙や、目開き300μm(50メッシュ)~75μm(200メッシュ)の金網又は布フィルターなどを使用することができる。また、撹拌翼や容器の壁に付着した析出物は、ピンセットなどで採取すればよい。これらの方法で回収した析出物は、水で洗浄した後、水の蒸発温度である100℃よりも高い温度で乾燥させて、乾燥質量を測定する。
そして、下記数式2によって析出率(%)を算出し、その値から、ポリクロロプレンラテックスの化学的安定性を評価する。即ち、析出率が低いほど、ラテックス粒子が凝集しにくいことを意味するため、「化学的安定性が高い」と評価し、析出率が高いほど、ラテックス粒子が凝集しやすいことを意味するため、「化学的安定性が低い」と評価する。なお、下記数式2におけるAは析出物の乾燥質量(g)、Bはポリクロロプレンラテックスの質量(g)、Cはポリクロロプレンラテックスの固形分濃度(質量%)である。
本実施形態の評価方法において評価対象とする「ポリクロロプレンラテックス」は、クロロプレン重合体を、乳化剤を介して水中に乳化させたラテックス(エマルジョン)である。ここで、クロロプレン重合体とは、2-クロロ-1,3-ブタジエン(以下、クロロプレンと記す。)の単独重合体又はクロロプレンと他の単量体との共重合体をいう。また、クロロプレンと共重合可能な単量体としては、例えば、2,3-ジクロロ-1,3-ブタジエン、1-クロロ-1,3-ブタジエン、硫黄、メタクリル酸及びそのエステル類、アクリル酸及びそのエステル類が挙げられ、これらは単独で使用してもよく、2種類以上を併用してもよい。
本実施形態の化学的安定性の評価方法の対象となるポリクロロプレンラテックスは、凝固液法により、医療用手袋、実験用手袋、カテーテル、ゴム長靴、ゴム糸、風船などの浸漬成形製品を製造する際に使用される。なお、凝固液法では、ポリクロロプレンラテックスに硫黄、金属酸化物、増粘剤、加硫促進剤、老化防止剤及び充填剤などを配合したラテックス組成物が使用される。そして、予め表面に凝固液を塗布した陶器製又は金属製の立体形状の型を、前述したラテックス組成物に浸漬した後、引き上げて加熱乾燥し、皮膜を型から剥がして、所定形状の製品を得る。
本実施形態の評価方法により求めた析出率を利用すると、欠陥製品の発生を防止することができる。例えば、手袋などの浸漬成形製品の亀裂やピンホールの発生率と、原料であるポリクロロプレンラテックスの化学的安定性(本実施形態の評価方法で求めた析出率)との関係を調べておき、原料のポリクロロプレンラテックスの析出率を測定し、管理することで、製品に亀裂やピンホールが発生することを防止できる。
先ず、内容積3リットルの反応器に、窒素気流下で、水:100質量部、不均化ロジン酸:4質量部、水酸化ナトリウム:1.3質量部、ホルムアルデヒドナフタレンスルホン酸縮合物のナトリウム塩:0.8部を仕込み、溶解させた。その後、撹拌しながら、クロロプレン:90質量部、2,3-ジクロロ-1,3-ブタジエン10質量部、及びn-ドデシルメルカプタン:0.03質量部を加えた。そして、開始剤に過硫酸カリウムを使用し、窒素雰囲気下、35℃で重合を行い、重合率が85%に達したところでフェノチアジンの乳濁液を加えて重合を停止した。
固形分濃度(質量%)は、下記数式3により求めた。なお、下記数式3において、aはアルミニウム製の皿の質量(g)、bはこの皿にポリクロロプレンラテックスを2ml入れたときの質量(g)、cはポリクロロプレンラテックスを入れた皿を125℃で1時間乾燥させた後の質量(g)である。
ゲル含有量(トルエン不溶分)は、下記数式4により求めた。なお、下記数式4において、dはポリクロロプレンラテックスを凍結乾燥して秤量した値(g)である。また、eはポリクロロプレンラテックスをトルエンで23℃で20時間溶解して0.6質量%に調整したものを、遠心分離機で分離した後、更に200メッシュの金網を用いて分離したゲル分を、風乾後110℃雰囲気下で1時間乾燥し、秤量した値(g)である。
ポリオキシエチレンラウリルエーテル(花王株式会社製 エマルゲン150)の添加量を0.6質量部に減らした以外は、前述したラテックスAと同様の方法及び条件で、固形分濃度が40.0質量%、55.0質量%、70.0質量%のポリクロロプレンラテックス(ラテックスB)を得た。各ポリクロロプレンラテックスについて、ゲル含有量(トルエン不溶分)を測定したところ、濃縮後の濃度に関係なく、91%であった。
23℃に維持された室内で、容量225mlのガラス瓶に、ラテックスA又はラテックスBを50g入れ、400rpmで撹拌しながら、ビュレットを用いて、表1及び表2に示す凝固剤水溶液50gを、2分間かけて滴下した。凝固剤水溶液の全量を滴下した後、撹拌翼に付着した析出物を全てガラス瓶内に落とし、ガラス瓶を密閉して16時間静置した。析出物を、80メッシュ金網で濾過して、鋏で細かく刻み、水洗し、110℃で3時間乾燥させた。析出物の乾燥質量を測定し、上記数式2に基づいて析出率を計算した。以上の作業を10回繰り返し、析出率の平均値、標準偏差、変動係数を計算した。その結果を表1及び表2に示す。
Claims (5)
- 前記ポリクロロプレンラテックス100g-wetに対して、前記水酸化カルシウム水溶液又は硝酸カルシウム水溶液を50~150g-wet添加することを特徴とする請求項1に記載のポリクロロプレンラテックスの化学的安定性の評価方法。
- ポリクロロプレンラテックスは、ロジン酸及び/又はロジン酸のアルカリ金属塩を含有することを特徴とする請求項1又は2に記載のポリクロロプレンラテックスの化学的安定性の評価方法。
- ポリクロロプレンラテックス中のクロロプレン重合体が、クロロプレン及び2,3-ジクロロ-1,3-ブタジエンの共重合体であることを特徴とする請求項1~3のいずれか1項に記載のポリクロロプレンラテックスの化学的安定性の評価方法。
- ポリクロロプレンラテックス中のクロロプレン重合体は、トルエン不溶分が70~99質量%であることを特徴とする請求項1~4のいずれか1項に記載のポリクロロプレンラテックスの化学的安定性の評価方法。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112012001176T DE112012001176T5 (de) | 2011-03-10 | 2012-03-02 | Verfahren zur Bewertung der chemischen Stabilität von Polychloropren-Latex |
CN201280012597.0A CN103443142B (zh) | 2011-03-10 | 2012-03-02 | 聚氯丁二烯胶乳的化学稳定性的评价方法 |
JP2013503494A JP5867748B2 (ja) | 2011-03-10 | 2012-03-02 | ポリクロロプレンラテックスの化学的安定性の評価方法 |
US14/002,623 US8883511B2 (en) | 2011-03-10 | 2012-03-02 | Method for evaluating chemical stability of polychloroprene latex |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011053412 | 2011-03-10 | ||
JP2011-053412 | 2011-03-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012121135A1 true WO2012121135A1 (ja) | 2012-09-13 |
Family
ID=46798099
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2012/055340 WO2012121135A1 (ja) | 2011-03-10 | 2012-03-02 | ポリクロロプレンラテックスの化学的安定性の評価方法 |
Country Status (6)
Country | Link |
---|---|
US (1) | US8883511B2 (ja) |
JP (1) | JP5867748B2 (ja) |
CN (1) | CN103443142B (ja) |
DE (1) | DE112012001176T5 (ja) |
MY (1) | MY162967A (ja) |
WO (1) | WO2012121135A1 (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
MX2014010525A (es) * | 2012-03-02 | 2014-11-25 | Denki Kagaku Kogyo Kk | Latex de policloropreno, composicion de latex de policloropreno y articulo moldeado. |
US10154699B2 (en) | 2015-09-10 | 2018-12-18 | Ansell Limited | Highly chemical resistant glove |
CN107141374B (zh) * | 2017-05-19 | 2018-11-09 | 广东石油化工学院 | 一种低腐蚀橡胶凝聚组合物及其使用方法 |
MY192063A (en) * | 2017-07-04 | 2022-07-25 | Denka Company Ltd | Mercaptane-modified polychloroprene latex and production method therefor |
JP7342888B2 (ja) * | 2019-01-10 | 2023-09-12 | 株式会社レゾナック | イソプレン系重合体ラテックス組成物 |
EP4238735A4 (en) * | 2021-03-23 | 2024-05-29 | Denka Company Limited | CHLOROPRENE POLYMER LATEX AND METHOD FOR MANUFACTURING SAME, AND DIPPED MOLDED BODY |
JPWO2022202254A1 (ja) * | 2021-03-23 | 2022-09-29 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5433584A (en) * | 1977-08-19 | 1979-03-12 | Japan Synthetic Rubber Co Ltd | Preparation of polymer latex |
JPH01174512A (ja) * | 1987-12-28 | 1989-07-11 | Sanyo Chem Ind Ltd | 改質剤および改質方法 |
JPH06100607A (ja) * | 1992-09-18 | 1994-04-12 | Kao Corp | ポリマーラテックスの製造法 |
JPH08319314A (ja) * | 1995-02-24 | 1996-12-03 | Enichem Elastomeres Fr Sa | 水性エマルション中でのポリクロロプレンの製造方法 |
JP2002241412A (ja) * | 2000-12-12 | 2002-08-28 | Takeda Chem Ind Ltd | ディップ成形用ラテックス及びディップ成形物 |
JP2006225527A (ja) * | 2005-02-18 | 2006-08-31 | Asahi Kasei Chemicals Corp | 共重合体ラテックスおよび紙塗工用組成物 |
JP2007126613A (ja) * | 2005-11-07 | 2007-05-24 | Nippon A & L Kk | ディップ成形用共重合体ラテックス、ディップ成形用組成物およびディップ成形物 |
JP2007269863A (ja) * | 2006-03-30 | 2007-10-18 | Nippon Zeon Co Ltd | ウェットマスターバッチ用ラテックス組成物 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6870019B2 (en) | 2000-12-12 | 2005-03-22 | Nippon A & L Inc. | Latex for dip molding and a dip molded product |
GB0211027D0 (en) * | 2002-05-14 | 2002-06-26 | Ssl Internat | Double-donnable glove |
CN100523027C (zh) * | 2002-12-19 | 2009-08-05 | 电气化学工业株式会社 | 聚氯丁二烯胶乳、制造方法及含水粘合剂组合物 |
CN100497459C (zh) * | 2003-05-14 | 2009-06-10 | 电气化学工业株式会社 | 聚氯丁二烯胶乳组合物及其制造方法 |
JP2009159655A (ja) * | 2007-12-25 | 2009-07-16 | Panasonic Electric Works Co Ltd | 直流配電システム |
CN101838360A (zh) * | 2009-03-19 | 2010-09-22 | 上海生大医保股份有限公司 | 一种聚异戊二烯水性乳液及用来制备手套和相关产品的方法 |
WO2011004805A1 (ja) * | 2009-07-06 | 2011-01-13 | 電気化学工業株式会社 | ポリクロロプレンラテックス組成物及びその製造方法並びに成形体 |
-
2012
- 2012-03-02 JP JP2013503494A patent/JP5867748B2/ja active Active
- 2012-03-02 US US14/002,623 patent/US8883511B2/en not_active Expired - Fee Related
- 2012-03-02 CN CN201280012597.0A patent/CN103443142B/zh active Active
- 2012-03-02 WO PCT/JP2012/055340 patent/WO2012121135A1/ja active Application Filing
- 2012-03-02 MY MYPI2013003293A patent/MY162967A/en unknown
- 2012-03-02 DE DE112012001176T patent/DE112012001176T5/de not_active Withdrawn
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5433584A (en) * | 1977-08-19 | 1979-03-12 | Japan Synthetic Rubber Co Ltd | Preparation of polymer latex |
JPH01174512A (ja) * | 1987-12-28 | 1989-07-11 | Sanyo Chem Ind Ltd | 改質剤および改質方法 |
JPH06100607A (ja) * | 1992-09-18 | 1994-04-12 | Kao Corp | ポリマーラテックスの製造法 |
JPH08319314A (ja) * | 1995-02-24 | 1996-12-03 | Enichem Elastomeres Fr Sa | 水性エマルション中でのポリクロロプレンの製造方法 |
JP2002241412A (ja) * | 2000-12-12 | 2002-08-28 | Takeda Chem Ind Ltd | ディップ成形用ラテックス及びディップ成形物 |
JP2006225527A (ja) * | 2005-02-18 | 2006-08-31 | Asahi Kasei Chemicals Corp | 共重合体ラテックスおよび紙塗工用組成物 |
JP2007126613A (ja) * | 2005-11-07 | 2007-05-24 | Nippon A & L Kk | ディップ成形用共重合体ラテックス、ディップ成形用組成物およびディップ成形物 |
JP2007269863A (ja) * | 2006-03-30 | 2007-10-18 | Nippon Zeon Co Ltd | ウェットマスターバッチ用ラテックス組成物 |
Also Published As
Publication number | Publication date |
---|---|
DE112012001176T5 (de) | 2013-12-05 |
US20130337573A1 (en) | 2013-12-19 |
JPWO2012121135A1 (ja) | 2014-07-17 |
US8883511B2 (en) | 2014-11-11 |
CN103443142B (zh) | 2015-09-09 |
JP5867748B2 (ja) | 2016-02-24 |
CN103443142A (zh) | 2013-12-11 |
MY162967A (en) | 2017-07-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5867748B2 (ja) | ポリクロロプレンラテックスの化学的安定性の評価方法 | |
JP6130352B2 (ja) | ポリクロロプレンラテックス、ポリクロロプレンラテックス組成物及び成形品 | |
EP1361247B1 (en) | Dip moldings, composition for dip molding and method for producing dip moldings | |
EP3409719B1 (en) | Latex composition | |
WO2019194056A1 (ja) | ディップ成形用組成物、手袋の製造方法及び手袋 | |
JP5369135B2 (ja) | ポリクロロプレンラテックス及びその製造方法 | |
WO2014181714A1 (ja) | 医療用品成形用ポリイソプレンラテックス、ディップ成形用組成物、医療用品およびその成形方法 | |
JP6614159B2 (ja) | ディップ成形用合成ポリイソプレンラテックス、ディップ成形用組成物およびディップ成形体 | |
WO2014078513A1 (en) | Latex products containing fillers from wastes | |
EP2808347A1 (en) | Method for producing epoxidized natural rubber, rubber composition for tires, and pneumatic tire | |
WO2015145867A1 (ja) | ポリクロロプレンラテックス、ポリクロロプレンラテックス組成物及び浸漬成形体 | |
JP6729549B2 (ja) | ディップ成形用合成イソプレン重合体ラテックスの製造方法、ディップ成形用組成物の製造方法およびディップ成形体の製造方法 | |
JP6572902B2 (ja) | ディップ成形体の製造方法 | |
CN114430749A (zh) | 具有优异应力保持性能及柔软度的弹性体膜制备用聚合物胶乳 | |
JP2016160366A (ja) | ディップ成形用合成イソプレン重合体ラテックス | |
JP2016160365A (ja) | 合成イソプレン重合体ラテックスの製造方法、合成イソプレン重合体ラテックス、ディップ成形用組成物、およびディップ成形体 | |
JP2016150946A (ja) | ディップ成形用合成イソプレン重合体ラテックス、ディップ成形用組成物およびディップ成形体 | |
EP4190857A1 (en) | Film molded body | |
JP2004189917A (ja) | シリカ複合化ラテックス組成物、シリカ複合化ポリクロロプレン系組成物及び製造方法 | |
CN106232645A (zh) | 橡胶胶乳、橡胶胶乳组合物及成形品 | |
TWI757538B (zh) | 乳膠組成物及其成形體以及該成形體之製造方法 | |
JP7476542B2 (ja) | ディップ成形用ラテックス組成物およびディップ成形体 | |
TW202110907A (zh) | 用於製備具有自行復原性質之彈性膜的聚合物乳膠組成物 | |
JP2016132761A (ja) | ディップ成形体の製造方法およびディップ成形体 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 12755406 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2013503494 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 14002623 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1301005041 Country of ref document: TH Ref document number: 112012001176 Country of ref document: DE Ref document number: 1120120011767 Country of ref document: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 12755406 Country of ref document: EP Kind code of ref document: A1 |