CN116724081A - 乙烯-乙烯醇共聚物组合物及其制备方法 - Google Patents
乙烯-乙烯醇共聚物组合物及其制备方法 Download PDFInfo
- Publication number
- CN116724081A CN116724081A CN202180069369.6A CN202180069369A CN116724081A CN 116724081 A CN116724081 A CN 116724081A CN 202180069369 A CN202180069369 A CN 202180069369A CN 116724081 A CN116724081 A CN 116724081A
- Authority
- CN
- China
- Prior art keywords
- acid
- ethylene
- carbon
- vinyl alcohol
- alcohol copolymer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 title claims abstract description 76
- 239000000203 mixture Substances 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000011203 carbon fibre reinforced carbon Substances 0.000 claims abstract description 28
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims abstract description 12
- 239000000126 substance Substances 0.000 claims abstract description 9
- 229910052783 alkali metal Inorganic materials 0.000 claims abstract description 5
- 150000001340 alkali metals Chemical class 0.000 claims abstract description 3
- 150000001735 carboxylic acids Chemical class 0.000 claims abstract 13
- 150000002763 monocarboxylic acids Chemical class 0.000 claims abstract 3
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 22
- 239000011591 potassium Substances 0.000 claims description 22
- 229910052700 potassium Inorganic materials 0.000 claims description 22
- 239000002253 acid Substances 0.000 claims description 21
- 238000005406 washing Methods 0.000 claims description 21
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 20
- 229910052796 boron Inorganic materials 0.000 claims description 20
- 229910052698 phosphorus Inorganic materials 0.000 claims description 19
- 239000011574 phosphorus Substances 0.000 claims description 19
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 18
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 16
- 238000006136 alcoholysis reaction Methods 0.000 claims description 16
- 150000001875 compounds Chemical class 0.000 claims description 15
- 239000011734 sodium Substances 0.000 claims description 15
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 13
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- 238000006116 polymerization reaction Methods 0.000 claims description 12
- 229910052708 sodium Inorganic materials 0.000 claims description 12
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 11
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 claims description 11
- 229920006395 saturated elastomer Polymers 0.000 claims description 11
- 239000004327 boric acid Substances 0.000 claims description 9
- 150000008044 alkali metal hydroxides Chemical class 0.000 claims description 5
- BEFDCLMNVWHSGT-UHFFFAOYSA-N ethenylcyclopentane Chemical compound C=CC1CCCC1 BEFDCLMNVWHSGT-UHFFFAOYSA-N 0.000 claims description 5
- 239000004334 sorbic acid Substances 0.000 claims description 5
- 235000010199 sorbic acid Nutrition 0.000 claims description 5
- 229940075582 sorbic acid Drugs 0.000 claims description 5
- NIONDZDPPYHYKY-SNAWJCMRSA-N (2E)-hexenoic acid Chemical compound CCC\C=C\C(O)=O NIONDZDPPYHYKY-SNAWJCMRSA-N 0.000 claims description 4
- 239000001602 (E)-hex-3-enoic acid Substances 0.000 claims description 4
- WBYWAXJHAXSJNI-VOTSOKGWSA-M .beta-Phenylacrylic acid Natural products [O-]C(=O)\C=C\C1=CC=CC=C1 WBYWAXJHAXSJNI-VOTSOKGWSA-M 0.000 claims description 4
- VBWPSWWDYVWZKA-UHFFFAOYSA-N 2-hydroxybut-3-enoic acid Chemical compound C=CC(O)C(O)=O VBWPSWWDYVWZKA-UHFFFAOYSA-N 0.000 claims description 4
- GQWNPIKWYPQUPI-UHFFFAOYSA-N 2-methylbut-3-enoic acid Chemical compound C=CC(C)C(O)=O GQWNPIKWYPQUPI-UHFFFAOYSA-N 0.000 claims description 4
- XXHDAWYDNSXJQM-UHFFFAOYSA-N Chloride-3-Hexenoic acid Natural products CCC=CCC(O)=O XXHDAWYDNSXJQM-UHFFFAOYSA-N 0.000 claims description 4
- WBYWAXJHAXSJNI-SREVYHEPSA-N Cinnamic acid Chemical compound OC(=O)\C=C/C1=CC=CC=C1 WBYWAXJHAXSJNI-SREVYHEPSA-N 0.000 claims description 4
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 claims description 4
- NIONDZDPPYHYKY-UHFFFAOYSA-N Z-hexenoic acid Natural products CCCC=CC(O)=O NIONDZDPPYHYKY-UHFFFAOYSA-N 0.000 claims description 4
- PVEOYINWKBTPIZ-UHFFFAOYSA-N but-3-enoic acid Chemical compound OC(=O)CC=C PVEOYINWKBTPIZ-UHFFFAOYSA-N 0.000 claims description 4
- 229930016911 cinnamic acid Natural products 0.000 claims description 4
- 235000013985 cinnamic acid Nutrition 0.000 claims description 4
- WBYWAXJHAXSJNI-UHFFFAOYSA-N methyl p-hydroxycinnamate Natural products OC(=O)C=CC1=CC=CC=C1 WBYWAXJHAXSJNI-UHFFFAOYSA-N 0.000 claims description 4
- XXHDAWYDNSXJQM-ONEGZZNKSA-N trans-hex-3-enoic acid Chemical compound CC\C=C\CC(O)=O XXHDAWYDNSXJQM-ONEGZZNKSA-N 0.000 claims description 4
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 8
- 229920001577 copolymer Polymers 0.000 claims 1
- UFRKOOWSQGXVKV-UHFFFAOYSA-N ethene;ethenol Chemical compound C=C.OC=C UFRKOOWSQGXVKV-UHFFFAOYSA-N 0.000 abstract description 33
- 239000004715 ethylene vinyl alcohol Substances 0.000 abstract description 33
- 239000011342 resin composition Substances 0.000 abstract description 20
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 abstract description 18
- 238000004383 yellowing Methods 0.000 abstract description 11
- 238000010438 heat treatment Methods 0.000 abstract description 5
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 26
- 239000000243 solution Substances 0.000 description 14
- 239000003999 initiator Substances 0.000 description 13
- LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical compound [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 description 10
- 239000007864 aqueous solution Substances 0.000 description 8
- 235000010338 boric acid Nutrition 0.000 description 8
- 229960002645 boric acid Drugs 0.000 description 8
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical group [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 8
- 239000002904 solvent Substances 0.000 description 8
- -1 antibacterial Substances 0.000 description 7
- 150000002762 monocarboxylic acid derivatives Chemical class 0.000 description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical class OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 6
- 238000000354 decomposition reaction Methods 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 5
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical group CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 5
- 235000011054 acetic acid Nutrition 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 4
- 239000005977 Ethylene Substances 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 4
- 239000008367 deionised water Substances 0.000 description 4
- 229910021641 deionized water Inorganic materials 0.000 description 4
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 4
- ZPWVASYFFYYZEW-UHFFFAOYSA-L dipotassium hydrogen phosphate Chemical compound [K+].[K+].OP([O-])([O-])=O ZPWVASYFFYYZEW-UHFFFAOYSA-L 0.000 description 4
- 229910000402 monopotassium phosphate Inorganic materials 0.000 description 4
- 235000019796 monopotassium phosphate Nutrition 0.000 description 4
- 239000008188 pellet Substances 0.000 description 4
- 229910000027 potassium carbonate Inorganic materials 0.000 description 4
- 235000011181 potassium carbonates Nutrition 0.000 description 4
- 159000000001 potassium salts Chemical class 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 238000010992 reflux Methods 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 229910019142 PO4 Inorganic materials 0.000 description 3
- 150000001298 alcohols Chemical class 0.000 description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 3
- 229910021538 borax Inorganic materials 0.000 description 3
- 125000004432 carbon atom Chemical group C* 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 235000019797 dipotassium phosphate Nutrition 0.000 description 3
- 229910000396 dipotassium phosphate Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004255 ion exchange chromatography Methods 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 150000002978 peroxides Chemical class 0.000 description 3
- 235000021317 phosphate Nutrition 0.000 description 3
- 239000011736 potassium bicarbonate Substances 0.000 description 3
- 229910000028 potassium bicarbonate Inorganic materials 0.000 description 3
- 235000015497 potassium bicarbonate Nutrition 0.000 description 3
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 description 3
- 229910000160 potassium phosphate Inorganic materials 0.000 description 3
- 235000011009 potassium phosphates Nutrition 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 159000000000 sodium salts Chemical class 0.000 description 3
- 235000010339 sodium tetraborate Nutrition 0.000 description 3
- GRONZTPUWOOUFQ-UHFFFAOYSA-M sodium;methanol;hydroxide Chemical compound [OH-].[Na+].OC GRONZTPUWOOUFQ-UHFFFAOYSA-M 0.000 description 3
- 238000010186 staining Methods 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- YQTCQNIPQMJNTI-UHFFFAOYSA-N 2,2-dimethylpropan-1-one Chemical group CC(C)(C)[C]=O YQTCQNIPQMJNTI-UHFFFAOYSA-N 0.000 description 2
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Chemical compound CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 description 2
- ZHNUHDYFZUAESO-UHFFFAOYSA-N Formamide Chemical compound NC=O ZHNUHDYFZUAESO-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 2
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 description 2
- 238000007865 diluting Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 238000010528 free radical solution polymerization reaction Methods 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010128 melt processing Methods 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- PJNZPQUBCPKICU-UHFFFAOYSA-N phosphoric acid;potassium Chemical compound [K].OP(O)(O)=O PJNZPQUBCPKICU-UHFFFAOYSA-N 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- SCVFZCLFOSHCOH-UHFFFAOYSA-M potassium acetate Chemical compound [K+].CC([O-])=O SCVFZCLFOSHCOH-UHFFFAOYSA-M 0.000 description 2
- GNSKLFRGEWLPPA-UHFFFAOYSA-M potassium dihydrogen phosphate Chemical compound [K+].OP(O)([O-])=O GNSKLFRGEWLPPA-UHFFFAOYSA-M 0.000 description 2
- 229910001414 potassium ion Inorganic materials 0.000 description 2
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 235000019260 propionic acid Nutrition 0.000 description 2
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 2
- 239000001632 sodium acetate Substances 0.000 description 2
- 235000017281 sodium acetate Nutrition 0.000 description 2
- 229910001415 sodium ion Inorganic materials 0.000 description 2
- 239000001488 sodium phosphate Substances 0.000 description 2
- 239000004328 sodium tetraborate Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 description 2
- NOBYOEQUFMGXBP-UHFFFAOYSA-N (4-tert-butylcyclohexyl) (4-tert-butylcyclohexyl)oxycarbonyloxy carbonate Chemical compound C1CC(C(C)(C)C)CCC1OC(=O)OOC(=O)OC1CCC(C(C)(C)C)CC1 NOBYOEQUFMGXBP-UHFFFAOYSA-N 0.000 description 1
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- MTLWTRLYHAQCAM-UHFFFAOYSA-N 2-[(1-cyano-2-methylpropyl)diazenyl]-3-methylbutanenitrile Chemical compound CC(C)C(C#N)N=NC(C#N)C(C)C MTLWTRLYHAQCAM-UHFFFAOYSA-N 0.000 description 1
- WFUGQJXVXHBTEM-UHFFFAOYSA-N 2-hydroperoxy-2-(2-hydroperoxybutan-2-ylperoxy)butane Chemical compound CCC(C)(OO)OOC(C)(CC)OO WFUGQJXVXHBTEM-UHFFFAOYSA-N 0.000 description 1
- RPBWMJBZQXCSFW-UHFFFAOYSA-N 2-methylpropanoyl 2-methylpropaneperoxoate Chemical compound CC(C)C(=O)OOC(=O)C(C)C RPBWMJBZQXCSFW-UHFFFAOYSA-N 0.000 description 1
- XDVOLDOITVSJGL-UHFFFAOYSA-N 3,7-dihydroxy-2,4,6,8,9-pentaoxa-1,3,5,7-tetraborabicyclo[3.3.1]nonane Chemical compound O1B(O)OB2OB(O)OB1O2 XDVOLDOITVSJGL-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
- 239000004254 Ammonium phosphate Substances 0.000 description 1
- 239000004342 Benzoyl peroxide Substances 0.000 description 1
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000005696 Diammonium phosphate Substances 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- NPYPAHLBTDXSSS-UHFFFAOYSA-N Potassium ion Chemical compound [K+] NPYPAHLBTDXSSS-UHFFFAOYSA-N 0.000 description 1
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000003905 agrochemical Substances 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 description 1
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 description 1
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium peroxydisulfate Substances [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 1
- VAZSKTXWXKYQJF-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)OOS([O-])=O VAZSKTXWXKYQJF-UHFFFAOYSA-N 0.000 description 1
- 229910001870 ammonium persulfate Inorganic materials 0.000 description 1
- 229910000148 ammonium phosphate Inorganic materials 0.000 description 1
- 235000019289 ammonium phosphates Nutrition 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 238000004380 ashing Methods 0.000 description 1
- 238000001479 atomic absorption spectroscopy Methods 0.000 description 1
- 235000019400 benzoyl peroxide Nutrition 0.000 description 1
- 150000001639 boron compounds Chemical class 0.000 description 1
- 150000001642 boronic acid derivatives Chemical class 0.000 description 1
- ZGPBOPXFOJBLIV-UHFFFAOYSA-N butoxycarbonyloxy butyl carbonate Chemical compound CCCCOC(=O)OOC(=O)OCCCC ZGPBOPXFOJBLIV-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 229910000388 diammonium phosphate Inorganic materials 0.000 description 1
- 235000019838 diammonium phosphate Nutrition 0.000 description 1
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 description 1
- 229910000397 disodium phosphate Inorganic materials 0.000 description 1
- 235000019800 disodium phosphate Nutrition 0.000 description 1
- UQGFMSUEHSUPRD-UHFFFAOYSA-N disodium;3,7-dioxido-2,4,6,8,9-pentaoxa-1,3,5,7-tetraborabicyclo[3.3.1]nonane Chemical compound [Na+].[Na+].O1B([O-])OB2OB([O-])OB1O2 UQGFMSUEHSUPRD-UHFFFAOYSA-N 0.000 description 1
- 238000007720 emulsion polymerization reaction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000002354 inductively-coupled plasma atomic emission spectroscopy Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000004434 industrial solvent Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- ZQMHJBXHRFJKOT-UHFFFAOYSA-N methyl 2-[(1-methoxy-2-methyl-1-oxopropan-2-yl)diazenyl]-2-methylpropanoate Chemical compound COC(=O)C(C)(C)N=NC(C)(C)C(=O)OC ZQMHJBXHRFJKOT-UHFFFAOYSA-N 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 239000006012 monoammonium phosphate Substances 0.000 description 1
- 235000019837 monoammonium phosphate Nutrition 0.000 description 1
- 229910000403 monosodium phosphate Inorganic materials 0.000 description 1
- 235000019799 monosodium phosphate Nutrition 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 150000001451 organic peroxides Chemical class 0.000 description 1
- VGTPKLINSHNZRD-UHFFFAOYSA-N oxoborinic acid Chemical compound OB=O VGTPKLINSHNZRD-UHFFFAOYSA-N 0.000 description 1
- 229920006280 packaging film Polymers 0.000 description 1
- 239000012785 packaging film Substances 0.000 description 1
- VPOLVWCUBVJURT-UHFFFAOYSA-N pentadecasodium;pentaborate Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[O-]B([O-])[O-].[O-]B([O-])[O-].[O-]B([O-])[O-].[O-]B([O-])[O-].[O-]B([O-])[O-] VPOLVWCUBVJURT-UHFFFAOYSA-N 0.000 description 1
- 125000000864 peroxy group Chemical group O(O*)* 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 235000011056 potassium acetate Nutrition 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- WFIZEGIEIOHZCP-UHFFFAOYSA-M potassium formate Chemical compound [K+].[O-]C=O WFIZEGIEIOHZCP-UHFFFAOYSA-M 0.000 description 1
- 239000004323 potassium nitrate Substances 0.000 description 1
- 235000010333 potassium nitrate Nutrition 0.000 description 1
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 1
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 1
- 229910052939 potassium sulfate Inorganic materials 0.000 description 1
- 235000011151 potassium sulphates Nutrition 0.000 description 1
- JVUYWILPYBCNNG-UHFFFAOYSA-N potassium;oxido(oxo)borane Chemical compound [K+].[O-]B=O JVUYWILPYBCNNG-UHFFFAOYSA-N 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 description 1
- 229910000162 sodium phosphate Inorganic materials 0.000 description 1
- 235000011008 sodium phosphates Nutrition 0.000 description 1
- 238000010557 suspension polymerization reaction Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- GJBRNHKUVLOCEB-UHFFFAOYSA-N tert-butyl benzenecarboperoxoate Chemical compound CC(C)(C)OOC(=O)C1=CC=CC=C1 GJBRNHKUVLOCEB-UHFFFAOYSA-N 0.000 description 1
- SWAXTRYEYUTSAP-UHFFFAOYSA-N tert-butyl ethaneperoxoate Chemical compound CC(=O)OOC(C)(C)C SWAXTRYEYUTSAP-UHFFFAOYSA-N 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- AJSTXXYNEIHPMD-UHFFFAOYSA-N triethyl borate Chemical compound CCOB(OCC)OCC AJSTXXYNEIHPMD-UHFFFAOYSA-N 0.000 description 1
- RIUWBIIVUYSTCN-UHFFFAOYSA-N trilithium borate Chemical compound [Li+].[Li+].[Li+].[O-]B([O-])[O-] RIUWBIIVUYSTCN-UHFFFAOYSA-N 0.000 description 1
- WRECIMRULFAWHA-UHFFFAOYSA-N trimethyl borate Chemical compound COB(OC)OC WRECIMRULFAWHA-UHFFFAOYSA-N 0.000 description 1
- BSVBQGMMJUBVOD-UHFFFAOYSA-N trisodium borate Chemical compound [Na+].[Na+].[Na+].[O-]B([O-])[O-] BSVBQGMMJUBVOD-UHFFFAOYSA-N 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- 229940005605 valeric acid Drugs 0.000 description 1
Classifications
-
- 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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F216/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical
- C08F216/02—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical by an alcohol radical
- C08F216/04—Acyclic compounds
- C08F216/06—Polyvinyl alcohol ; Vinyl alcohol
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing atoms other than carbon or hydrogen
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F210/02—Ethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F8/00—Chemical modification by after-treatment
-
- 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
- C08J3/12—Powdering or granulating
-
- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
-
- 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
- C08K3/32—Phosphorus-containing compounds
-
- 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
- C08K3/38—Boron-containing compounds
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F218/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid or of a haloformic acid
- C08F218/02—Esters of monocarboxylic acids
- C08F218/04—Vinyl esters
- C08F218/08—Vinyl acetate
-
- 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
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/08—Copolymers of ethene
-
- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/262—Alkali metal carbonates
-
- 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
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/324—Alkali metal phosphate
-
- 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
- C08K3/32—Phosphorus-containing compounds
- C08K2003/329—Phosphorus containing acids
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing atoms other than carbon or hydrogen
- C08L23/0853—Ethene vinyl acetate copolymers
- C08L23/0861—Saponified copolymers, e.g. ethene vinyl alcohol copolymers
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Laminated Bodies (AREA)
Abstract
本发明提供一种乙烯‑乙烯醇共聚物组合物及其制备方法,该组合物含有乙烯‑乙烯醇共聚物、碱金属元素和含羧基的物质,其特征在于,所述含羧基的物质含有一元饱和羧酸和含碳碳双键的羧酸。本发明通过使EVOH树脂组合物中同时含有醋酸和含碳碳双键的羧酸,能够提高EVOH树脂组合物的耐黄变性能。经210℃热处理0.5小时后黄变指数YI不超过20,提高不超过15。
Description
相关申请的交叉引用
本申请要求2020年10月15日提交的中国专利申请CN202011103188.4的权益,上述申请的内容通过引用被合并于本文。
本发明涉及一种乙烯-乙烯醇共聚物组合物及其制备方法。
EVOH树脂具有极好的气味阻隔性、透明性和光泽性,且耐油脂、耐化学药品、耐紫外线及其他射线,而且机械性能、强度和拉伸模量好,用作肉类、油脂、工业溶剂、农药等复合包装膜,发泡处理、中空容器和阻隔层。此外,EVOH树脂还可以与其他材料复合,构成耐火、抗菌、抗氧化材料等。
然而,EVOH树脂在熔融加工过程中,易发生黄变,影响产品质量。
CN109651557A通过分两次加入碱催化剂进行醇解反应且控制两次碱解催化剂用量和反应时间来提高醇解度来,从而降低EVOH的着色度,制得的乙烯-乙烯醇共聚物醇解度为99.3-99.7%,着色度低。
发明内容
本发明的目的是为了克服现有技术的EVOH树脂组合物存在高温黄变的缺陷,从而提供一种具有较高耐黄变性的EVOH树脂组合物及其制备方法。
本发明第一方面提供一种乙烯-乙烯醇共聚物组合物,该组合物含有乙烯-乙烯醇共聚物、碱金属元素和含羧基的物质,其特征在于,所述含羧基的物质含有一元饱和羧酸和含碳碳双键的羧酸。
本发明第二方面提供一种乙烯-乙烯醇共聚物组合物的制备方法,该方法包括将聚合反应得到的乙烯-醋酸乙烯酯共聚物用碱金属氢氧化物醇解后成型造粒,然后进行水洗和酸洗,其特征在于,所述酸洗采用的酸包括一元饱和羧酸和含碳碳双键的羧酸。
本发明通过使EVOH树脂组合物中同时含有一元饱和羧酸如醋酸和含碳碳双键的羧酸,能够提高EVOH树脂组合物的耐黄变性能。经210℃热处理0.5小时后黄变指数YI不超过20,提高不超过15。
本发明提供的EVOH树脂组合物方法简单,易于操作,有利于实现工业化生产。
乙烯-乙烯醇共聚物组合物中,乙烯-乙烯醇共聚物为主要成分,通过乙烯-醋酸乙烯共聚合后醇解得到,钠元素是在乙烯-醋酸乙烯共聚物醇解过程中产生的副产物带来的,通常通过后续水洗和酸洗来降低钠元素的含量。目前酸洗用的酸一般为醋酸。
本发明的发明人意外的发现,通过在酸洗过程中同时使用一元饱和羧酸和含碳碳双键的羧酸(也称为不饱和羧酸),能够提高组合物的耐黄变性,使熔融加工后的产品YI相较于加工前不会明显升高,从而较现有的EVOH熔融加工产品YI更低。
根据本发明的一种优选实施方式,所述一元饱和羧酸和含碳碳双键的羧酸的重量比为1:0.1-1优选1:0.4-0.7。
本发明中,通过离子色谱来检测一元饱和羧酸、磷酸根和含碳碳双键的羧酸的含量。具体测试方法为:将EVOH样品粉碎过100目筛,称10g样品与50ml去离子水,在95℃水浴中搅拌回流提取10小时。将提取液用去离子水稀释5倍(体积),采用离子色谱进行测试,色谱柱为Metrosep A Supp/250,4,流动相为Na
2CO
3和NaHCO
3混合溶液,校正液为乙酸钠水溶液。
优选地,所述一元饱和羧酸的含量为相对于乙烯-乙烯醇共聚物质量的50-2000ppm优选为100-1500ppm更优选为200-800ppm,所述含碳碳双键的羧酸的含量为相对于乙烯-乙烯醇共聚物质量的20-2000ppm优选为50-1000ppm更优选为150-250ppm。
本发明中,所述含碳碳双键的羧酸可以含有一个或多个羧基,可以含有一个或多个碳碳双键,还可以含有一个或多个羟基。所述含碳碳双键的羧酸的碳原子数可以为3-10,优选为山梨酸、2-己烯酸、3-己烯酸、丁烯二酸、乙烯基乙酸、乙烯基丙酸、乙烯基乙醇酸和肉桂酸中的一种或多种。
所述一元饱和羧酸可以为各种含一个羧基-COOH且不饱和碳碳双键的物质,优选碳原子数为1-8更优选碳原子数为1-5的一元饱和羧酸,如甲酸、乙酸、丙酸、丁酸、戊酸中的一种或多种。
本发明的发明人还意外的发现,通过在酸接触后加入钾元素,并控制钠元素与钾元素的质量比在0.1:1-1:1优选0.2:1-0.8:1更优选0.2:1-0.5:1特定范围内,能够使所得EVOH树脂组合物的耐热性能大幅提高。实验证明,通过控制钾元素的含量在上述范围内,EVOH树脂组合物的起始分解温度可提高至380-390℃,最大分解温度可提高至420℃以上,使乙烯-乙烯醇共聚物能够适应更高加工温度的工艺需要。
控制钠元素的含量在一定范围内,能够获得更好的效果。优选地,相对于乙烯-乙烯醇共聚物的质量,钾元素和钠元素的总量为100-3000ppm优选为200-2000ppm更优选800-1200ppm。
本发明中,钾元素和钠元素的含量通过电感耦合等离子体原子发射光谱仪(ICP-0ES)来测得。具体测试方法为:将EVOH样品粉碎过500目筛,称10g样品与50ml离子交换水,在95℃水浴中搅拌回流提取10小时。将提取液用离子交换水稀释5倍,采用ICP-0ES测试。
优选地,所述钾元素以离子形式存在,更优选以钾盐形式存在,进一步优选所述钾盐为碳酸钾和/或碳酸氢钾。相对于硝酸钾、磷酸钾、磷酸钾、磷酸二氢钾、磷酸氢二钾、硫酸钾、氯化钾等无机钾盐以及醋酸钾、甲酸钾等有机钾盐,碳酸钾和碳酸氢钾能够取得更好耐高温黄变的效果。
根据本发明的一种优选实施方式,所述EVOH树脂组合物含有乙烯-乙烯醇共聚物、含羧基的物质、钾盐和钠盐,所述含羧基的物质包括醋酸和含碳碳双键的羧酸,其中含碳碳双键的羧酸包括山梨酸、2-己烯酸、3-己烯酸、丁烯二酸、乙烯基乙酸、乙烯基丙酸、乙烯基乙醇酸和肉桂酸中的一种或多种,所述醋酸的含量为相对于乙烯-乙烯醇共聚物质量的50-2000ppm;所述含碳碳双键的羧酸的含量为相对于乙烯-乙烯醇共聚物质量的20-2000ppm,钾盐和钠盐的总量为钾盐和钠盐中含有的钾离子和钠离子的总量相对于乙烯-乙烯醇共聚物质量的200-3000ppm,且钠盐中含有的钠离子与钾盐中含有的钾离子的质量比为0.1:1-1:1。
为了防止EVOH树脂组合物熔融成型着色,根据本发明的一种优选实施方 式,所述EVOH树脂组合物还可以含有硼元素和/或磷元素。硼元素可以为各种硼类化合物,如硼酸、硼酸酯、硼酸盐等,优选原硼酸(即通常说的硼酸)、偏硼酸、四硼酸、片硼酸钠、偏硼酸钾、四硼酸钠、五硼酸钠、硼酸锂、硼砂、硼酸三甲指、硼酸三乙酯等中的一种或多种,最优选硼酸。
优选地,相对于乙烯-乙烯醇共聚物的质量,以硼酸H
3BO
3计,硼元素的含量为50-1000ppm优选为300-500ppm。在该范围内,既能获得耐热性、耐黄变性的大幅提升,还能有效避免对熔融加工过程造成的不利影响。
进一步优选地,所述EVOH树脂组合物还含有以H
3PO
4计200-1000ppm优选500-800ppm的磷化合物。所述磷化合物可以为各种磷酸盐如磷酸的碱金属盐、磷酸的碱土金属盐,具体的,可以为磷酸钾、磷酸钠、磷酸铵、磷酸氢二铵、磷酸二氢铵、磷酸氢二钾、磷酸氢二钠、磷酸二氢钾、磷酸二氢钠等中的一种或多种。需要说明的是,当所述磷化合物为磷酸的各种钾盐时,其中的钾的量计入组合物中钾元素含量内。
本发明中,所述乙烯-醋酸乙烯酯共聚物可以是各种规格、方法得到的EVOH共聚物,优选地,所述乙烯-醋酸乙烯酯共聚物的熔融指数(190℃、2160g)为0.5-10g/10分钟。
可以为各种通过现有方法制备得到的乙烯-醋酸乙烯酯共聚物,例如可以通过聚合反应制得,聚合反应采用的溶剂优选为醇类溶剂,聚合反应所采用的引发剂优选为偶氮类引发剂或过氧化物类引发剂。
本发明第二方面提供了乙烯-乙烯醇共聚物组合物的制备方法,该方法包括将聚合反应得到的乙烯-醋酸乙烯酯共聚物用碱金属氢氧化物醇解后成型造粒,然后依次进行水洗和酸洗,其特征在于,所述酸洗采用的酸包括一元饱和羧酸和含碳碳双键的羧酸。
所述水洗和酸洗使得钠元素的含量降低至50-2000ppm。
一般的,通过将酸配成一定浓度的水溶液,然后与乙烯-醋酸乙烯酯共聚物粒料接触进行酸洗。一般酸洗溶液的重量为乙烯-醋酸乙烯酯共聚物粒料重量的2-5倍。
优选地,相对于1重量份的乙烯-乙烯醇共聚物,所述一元饱和羧酸的用量为0.001-0.05重量份优选0.005-0.03重量份,所述含碳碳双键的羧酸的含量为0.001-0.015重量份优选0.001-0.01重量份。
当用于醇解的碱金属氢氧化物为氢氧化钠时,通过在清洗之后进一步加入钾源,可以使所得EVOH树脂组合物中含有钾元素,从而提高树脂产品的耐温分解性。优选地,所述钾源为钾盐,进一步优选所述钾盐为碳酸钾、碳酸氢钾、磷酸钾、磷酸氢钾、磷酸二氢钾、磷酸氢二钾中的一种或多种。
优选地,所述钾源的用量为乙烯-乙烯醇共聚物质量的0.001-0.003倍。
根据本发明的一种优选实施方式,该方法还包括向酸洗后的乙烯-醋酸乙烯酯共聚物中加入含磷化合物和/或含硼化合物。
优选地,含硼化合物的加入量使得相对于乙烯-乙烯醇共聚物的质量,以硼酸H
3BO
3计,硼元素的含量为50-1000ppm优选为300-500ppm。
优选地,含磷化合物的加入量使得相对于乙烯-乙烯醇共聚物的质量,以H
3PO
4计磷元素的含量为200-1000ppm优选500-800ppm。
可以将硼源和/或磷源与钾源一起加入,也可以先后加入,从而获得同时含有钾、硼、磷元素的组合物。加入钾盐、含硼化合物和含磷化合物的方式没有特别限制,优先采用将上述化合物用水溶解后,将溶液加入到乙烯-乙烯醇共聚物中并混合均匀。溶液的浓度没有特别限定,可以是各种浓度,只要能将钾盐、含硼化合物、含磷化合物负载到乙烯-乙烯醇共聚物中即可。由于乙烯-乙烯醇共聚物具有一定的孔结构,因此可以采用饱和浸渍的方法将钾盐、含硼化合物、含磷化合物负载到乙烯-乙烯醇共聚物中,然后干燥除去溶剂,即得乙烯-乙烯醇共聚物组合物。
硼源、磷源、钾源的种类如上文所述。
聚合反应制备乙烯-醋酸乙烯酯共聚物的方式可以采用现有的各种方式,可以采用溶液聚合、乳液聚合或悬浮聚合等方法。优选溶液聚合法,聚合反应采用的溶剂优选为醇类溶剂。所述醇类溶剂可以包括碳原子数1-4的醇类,如甲醇、乙醇、丙醇、乙二醇、正丁醇和叔丁醇等,也可以是上述两种醇类的混合溶剂,或者以上述醇类作为主要成份而含有其他少量成份。
聚合反应所采用的引发剂可以为偶氮类引发剂或过氧化物类引发剂。
进一步,偶氮类引发剂包括油溶性引发剂如偶氮二异丁腈、偶氮二异戊腈、偶氮异丁氰基甲酰胺、偶氮二环已基甲腈、偶氮二异丁酸二甲酯等。
进一步,过氧化物类引发剂包括有机过氧化物(如过氧化苯甲酰、过氧化苯甲酰叔丁酯、过氧化甲乙酮、过氧化二异丁酰、过氧化新癸酸特戊酯、过氧化二 碳酸双(4-特丁基环己酯)、过氧化特戊酸特戊酯、过氧化醋酸特丁酯、过氧化二碳酸双丁酯等)或无机过氧化物(如过氧化氢、过硫酸铵、过硫酸钾等)
进一步,所述引发剂包括有机过氧类引发剂。
进一步,以质量份计,配比关系为:溶剂10-40份,醋酸乙烯酯单体60-200份、引发剂0.01-0.3份和乙烯单体5-60份。
进一步,以质量份计,配比关系为:溶剂10-35份,醋酸乙烯酯单体80-150份、引发剂0.03-0.2份和乙烯单体20-40份。
所述醇解和成型造粒的方法已为本领域技术人员所公知,在此不再赘述。
下面将通过实施例对本发明进行进一步的说明。
钠和钾离子含量的检测方法为:将EVOH样品粉碎过筛,称10g样品与50ml离子交换水,在95℃水浴中搅拌回流提取10小时。将提取液用离子交换水稀释5倍,采用ICP-0ES测试。
一元羧酸、含碳碳双键的羧酸、磷酸根含量的检测方法为:将EVOH样品粉碎过100目筛,称10g样品与50ml去离子水,在95℃水浴中搅拌回流提取10小时。将提取液用去离子水稀释5倍(体积),采用离子色谱进行测试,色谱柱为Metrosep A Supp/250,4,流动相为Na
2CO
3和NaHCO
3混合溶液,校正液为乙酸钠水溶液。
硼元素的测试方法为称取样品100克,通过马弗炉灰化后将灰分溶解于0.01当量的硝酸水溶液200ml中通过原子吸收光谱分析硼元素含量,据此可以换算为硼酸的重量。
初始分解温度和最高分解温度的检测方法为:采用热失重分析仪,氮气氛围下,升温速率10℃/min,温度从室温升至800℃,当样品分解5%(w)时的温度即为初始分解温度T
0(℃),当样品分解50%(w)时的温度即为最高分解温度T
1(℃)。
黄度指数YI的检测方法为:称取10-15g样品,用色度仪测试样品初始黄度指数YI和210℃热处理0.5小时后的黄度指数YI。YI值越小代表着色度越低。
以下实施例中,除非另有说明,其中的份均为质量份。
实施例1
A.聚合:在带有搅拌器的聚合釜中加入甲醇16份、醋酸乙烯酯80份、偶氮 二异丁腈0.01份,通入乙烯使聚合釜内压力保持在3.7MPa,温度65℃,反应5h,得到乙烯-醋酸乙烯共聚物溶液,经减压和精馏除去乙烯和醋酸乙烯单体,得到乙烯-醋酸乙烯共聚物溶液;
B.醇解:将步骤A得到的乙烯-醋酸乙烯共聚物溶液调整质量分数为40%,然后加入浓度为40g/L的氢氧化钠-甲醇溶液(氢氧化钠为溶质)进行醇解,氢氧化钠-甲醇溶液的用量为氢氧化钠-甲醇溶液中的氢氧化钠与乙烯-醋酸乙烯酯共聚物中含有的醋酸乙烯酯基团的摩尔比为0.05:1,反应4h直至醇解完全;
C.造粒:将乙烯-醋酸乙烯酯共聚物醇解后,将醇解得到的乙烯-乙烯醇共聚物溶液通过带有孔板的挤出设备挤出到5℃的水溶液中,析出成条状后,采用通用的切断方式切割成颗粒;
D.水洗:随后通过带有搅拌装置的釜式容器加入颗粒5倍质量的水清洗乙烯-乙烯醇共聚物颗粒,每次洗涤2小时,反复洗涤2次;
E.酸洗:在带有搅拌装置的釜式容器加入颗粒5倍质量的水清洗乙烯-乙烯醇共聚物颗粒,在水洗液中加入加入相对于EVOH(以质量为1份计)质量0.015份的丙酸和0.007份的山梨酸,进行酸洗2小时,酸洗完成后离心脱水;
F.调质:在离心脱水后的EVOH颗粒加入相对于EVOH(以质量为1份计)质量0.0015份的碳酸钾和0.001份硼酸和0.001份磷酸二氢钾的水溶液,充分混合均匀进行饱和浸渍,接着在115℃下烘干处理24小时,即得EVOH树脂组合物。
实施例2-实施例10
按照实施例1的方法制备EVOH树脂组合物,不同的是步骤E和F中一元羧酸、含不饱和双键的羧酸、磷源、硼源和钾源的种类和用量如表1所示,所得EVOH树脂组合物的性能如表2所示。
对比例1-对比例3
按照实施例1的方法制备EVOH树脂组合物,不同的是步骤E和F中一元羧酸、含不饱和碳碳双键的羧酸和钾源的种类和用量如表1所示,所得EVOH树脂组合物的性能如表2所示。 表1
表2
从上表2的数据可以看出,通过加入含碳碳双键的羧酸,能够提高EVOH树脂组合物的耐热黄变性,通过同时控制钾盐和钠盐在一定范围内,能够提高EVOH树脂组合物的耐热性和耐热黄变性。
此外,应当理解,虽然本说明书按照实施方式加以描述,但并非每个实施方式仅包含一个独立的技术方案,说明书的这种叙述方式仅仅是为清楚起见,本领域技术人员应当将说明书作为一个整体,各实施例中的技术方案也可以经适当组合,形成本领域技术人员可以理解的其他实施方式。
Claims (16)
- 乙烯-乙烯醇共聚物组合物,该组合物含有乙烯-乙烯醇共聚物、碱金属元素和含羧基的物质,其特征在于,所述含羧基的物质含有一元饱和羧酸和含碳碳双键的羧酸。
- 根据权利要求1所述的组合物,其中,所述一元饱和羧酸和含碳碳双键的羧酸的重量比为1:0.1-1优选1:0.4-0.7。
- 根据权利要求1或2所述的组合物,其中,所述一元饱和羧酸的含量为相对于乙烯-乙烯醇共聚物质量的50-2000ppm优选为200-800ppm,所述含碳碳双键的羧酸的含量为相对于乙烯-乙烯醇共聚物质量的20-2000ppm优选为150-250ppm。
- 根据权利要求1或2或3所述的组合物,其中,所述含碳碳双键的羧酸含有一个或两个羧基。
- 根据权利要求1-4中任意一项所述的组合物,其中,含碳碳双键的羧酸为山梨酸、2-己烯酸、3-己烯酸、丁烯二酸、乙烯基乙酸、乙烯基丙酸、乙烯基乙醇酸和肉桂酸中的一种或多种。
- 根据权利要求1-5中任意一项所述的组合物,其中,所述碱金属元素为钾元素和钠元素,相对于乙烯-乙烯醇共聚物的质量,钾元素和钠元素的总量为100-3000ppm优选为800-1200ppm。
- 根据权利要求6所述的组合物,其中,钠元素与钾元素的质量比为0.1:1-1:1优选为0.2:1-0.5:1。
- 根据权利要求1-7中任意一项所述的组合物,其中,该组合物还含有硼元素和/或磷元素,相对于乙烯-乙烯醇共聚物的质量,以硼酸H 3BO 3计,硼元素的含量为50-1000ppm优选为300-500ppm,以H 3PO 4计磷元素的含量为200-1000ppm优选500-800ppm。
- 乙烯-乙烯醇共聚物组合物的制备方法,该方法包括将聚合反应得到的乙烯-醋酸乙烯酯共聚物用碱金属氢氧化物醇解后成型造粒,然后依次进行水洗和酸洗,其特征在于,所述酸洗采用的酸包括一元饱和羧酸和含碳碳双键的羧酸。
- 根据权利要求9所述的制备方法,其中,所述一元饱和羧酸和含碳碳双键的羧酸的重量比为1:0.1-1优选1:0.2-0.8。
- 根据权利要求9或10所述的制备方法,其中,相对于1重量份的乙烯- 乙烯醇共聚物,所述一元饱和羧酸的用量为0.001-0.05重量份,所述含碳碳双键的羧酸的用量为0.001-0.01重量份。
- 根据权利要求9-11中任意一项所述的制备方法,其中,所述含碳碳双键的羧酸含有一个或两个羧基。
- 根据权利要求9-12中任意一项所述的制备方法,其中,含碳碳双键的羧酸为山梨酸、2-己烯酸、3-己烯酸、丁烯二酸、乙烯基乙酸、乙烯基丙酸、乙烯基乙醇酸和肉桂酸中的一种或多种。
- 根据权利要求9-13中任意一项所述的制备方法,其中,用于醇解的碱金属氢氧化物为氢氧化钠,该方法还包括向酸洗后的乙烯-醋酸乙烯酯共聚物中加入钾盐,钾盐的加入量使得相对于乙烯-乙烯醇共聚物的质量,钾元素和钠元素的总量为100-3000ppm优选为800-1200ppm。
- 根据权利要求14所述的制备方法,其中,钾盐的加入量使得钠元素与钾元素的质量比为0.1:1-1:1优选为0.2:1-0.5:1。
- 根据权利要求14或15所述的制备方法,其中,该方法还包括向酸洗后的乙烯-醋酸乙烯酯共聚物中加入含磷化合物和/或含硼化合物;优选地,含磷化合物和含硼化合物的加入量使得相对于乙烯-乙烯醇共聚物的质量,以硼酸H 3BO 3计,硼元素的含量为50-1000ppm优选为300-500ppm,以H 3PO 4计磷元素的含量为200-1000ppm优选500-800ppm。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011103188.4A CN114426753B (zh) | 2020-10-15 | 2020-10-15 | 乙烯-乙烯醇共聚物组合物及其制备方法 |
CN2020111031884 | 2020-10-15 | ||
PCT/CN2021/123864 WO2022078458A1 (zh) | 2020-10-15 | 2021-10-14 | 乙烯-乙烯醇共聚物组合物及其制备方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN116724081A true CN116724081A (zh) | 2023-09-08 |
Family
ID=81207697
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202011103188.4A Active CN114426753B (zh) | 2020-10-15 | 2020-10-15 | 乙烯-乙烯醇共聚物组合物及其制备方法 |
CN202180069369.6A Pending CN116724081A (zh) | 2020-10-15 | 2021-10-14 | 乙烯-乙烯醇共聚物组合物及其制备方法 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202011103188.4A Active CN114426753B (zh) | 2020-10-15 | 2020-10-15 | 乙烯-乙烯醇共聚物组合物及其制备方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20240026135A1 (zh) |
EP (1) | EP4212586A4 (zh) |
CN (2) | CN114426753B (zh) |
WO (1) | WO2022078458A1 (zh) |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5641204A (en) * | 1979-09-13 | 1981-04-17 | Kuraray Co Ltd | Preparation of saponified ethylene-vinyl acetate copolymer |
JPWO2002053639A1 (ja) * | 2000-12-28 | 2004-05-13 | 株式会社クラレ | エチレン−ビニルアルコール共重合体樹脂組成物 |
CN101027356B (zh) * | 2004-09-28 | 2010-04-28 | 日本合成化学工业株式会社 | 乙烯-乙烯醇共聚物组合物及使用其的多层结构体 |
US9951199B2 (en) * | 2011-07-07 | 2018-04-24 | Kuraray Co., Ltd. | Ethylene-vinyl alcohol copolymer resin composition and method for producing same |
JP6073860B2 (ja) * | 2012-03-28 | 2017-02-01 | 株式会社クラレ | エチレン−ビニルアルコール共重合体含有樹脂組成物 |
CN105308117B (zh) * | 2013-05-29 | 2018-03-16 | 株式会社可乐丽 | 含有乙烯‑乙烯醇共聚物的树脂组合物、膜、层叠体、包装材料、真空隔热体、膜的制造方法和层叠体的制造方法 |
TWI648297B (zh) * | 2013-10-02 | 2019-01-21 | Kuraray Co., Ltd. | 樹脂組成物、樹脂成型體及多層結構體 |
CN111704690A (zh) * | 2014-11-06 | 2020-09-25 | 中国石油化工股份有限公司 | 一种含乙烯及乙烯醇结构单元共聚物组合物及其制备方法 |
CN106146718A (zh) * | 2015-04-17 | 2016-11-23 | 中国石油化工集团公司 | 一种外观良好和耐热性优异的evoh颗粒的制备方法 |
US10738184B2 (en) * | 2015-11-13 | 2020-08-11 | Mitsubishi Chemical Corporation | Saponified ethylene-vinyl ester copolymer pellet and method for producing same |
EP3564294B1 (en) * | 2016-12-28 | 2022-04-13 | Mitsubishi Chemical Corporation | Ethylene-vinyl alcohol copolymer composition pellets, and production method for ethylene-vinyl alcohol copolymer composition pellets |
CN109651557B (zh) | 2017-10-11 | 2021-07-02 | 中国石油化工集团公司 | 乙烯-乙烯醇共聚物的制备方法 |
-
2020
- 2020-10-15 CN CN202011103188.4A patent/CN114426753B/zh active Active
-
2021
- 2021-10-14 CN CN202180069369.6A patent/CN116724081A/zh active Pending
- 2021-10-14 EP EP21879500.3A patent/EP4212586A4/en active Pending
- 2021-10-14 US US18/248,802 patent/US20240026135A1/en active Pending
- 2021-10-14 WO PCT/CN2021/123864 patent/WO2022078458A1/zh active Application Filing
Also Published As
Publication number | Publication date |
---|---|
WO2022078458A1 (zh) | 2022-04-21 |
US20240026135A1 (en) | 2024-01-25 |
CN114426753B (zh) | 2023-02-28 |
EP4212586A4 (en) | 2024-03-27 |
EP4212586A1 (en) | 2023-07-19 |
CN114426753A (zh) | 2022-05-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7671111B2 (en) | Monitoring column breakthrough in a process for removing fluorosurfactant from aqueous fluoropolymer dispersions | |
EP2041184B1 (de) | Verfahren zur herstellung wässriger vinylester-dispersionen | |
CN105801732A (zh) | 一种聚氯乙烯的悬浮聚合制备方法及加料装置 | |
CN116601223A (zh) | 乙烯-乙烯醇共聚物组合物及其制备方法 | |
CN116724081A (zh) | 乙烯-乙烯醇共聚物组合物及其制备方法 | |
RU2686205C1 (ru) | Способ удаления перфторированных алкановых кислот | |
CN101460550B (zh) | 在氟表面活性剂已减少的氟聚合物分散体内分步加入非-氟化阴离子表面活性剂 | |
JP2549294B2 (ja) | 高嵩密度pvc樹脂の懸濁重合 | |
CN114426721B (zh) | 耐高温乙烯-乙烯醇共聚物组合物及其制备方法 | |
EP3205691A1 (en) | Vinyl-based thermoplastic resin composition, preparation method therefor, and vinyl-based thermoplastic resin prepared therefrom | |
AU2021359535B2 (en) | Ethylene-vinyl alcohol copolymer composition, and preparation method therefor | |
JP4744494B2 (ja) | 熱安定性アニオン交換体 | |
RU2288233C2 (ru) | Введение органических инициаторов в процессе падения давления в реакциях полимеризации мономера винилхлорида | |
CN114426742B (zh) | Evoh树脂组合物及其制备方法 | |
CN103951783B (zh) | 一种聚合物乳液的制备方法 | |
CN106574005B (zh) | 具有可释放气体的聚合物 | |
KR102019042B1 (ko) | 알킬 3-알콕시프로피오네이트의 제조방법 | |
CN109153744B (zh) | 乙烯醇系聚合物的制备方法 | |
CN107304236B (zh) | 氯化聚氯乙烯及其制备方法 | |
JP2018197294A (ja) | 陰イオン交換樹脂およびその製造方法 | |
CN114920864B (zh) | 一种乙烯-醋酸乙烯酯共聚物及其制备方法和应用 | |
CN108623435A (zh) | 一种降低甲醇中乙醛、三聚乙醛和丁烯醛含量的方法 | |
Barozzi et al. | Investigation on dynamic VOC production from industrial, high solids content emulsion polymerizations | |
CN118146420A (zh) | 一种乙烯-乙烯醇共聚物树脂组合物的制备方法 | |
CN115215955A (zh) | 一种乙烯-醋酸乙烯酯共聚物及其制备方法和应用 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
REG | Reference to a national code |
Ref country code: HK Ref legal event code: DE Ref document number: 40091643 Country of ref document: HK |