CN112552805B - Nano modified water-based polyester resin and preparation method thereof - Google Patents
Nano modified water-based polyester resin and preparation method thereof Download PDFInfo
- Publication number
- CN112552805B CN112552805B CN202011505190.4A CN202011505190A CN112552805B CN 112552805 B CN112552805 B CN 112552805B CN 202011505190 A CN202011505190 A CN 202011505190A CN 112552805 B CN112552805 B CN 112552805B
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- acid
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- water
- polyester resin
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 229920001225 polyester resin Polymers 0.000 title claims abstract description 35
- 239000004645 polyester resin Substances 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 38
- 239000006185 dispersion Substances 0.000 claims abstract description 35
- 239000008367 deionised water Substances 0.000 claims abstract description 23
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 23
- 229920000642 polymer Polymers 0.000 claims abstract description 23
- 230000007062 hydrolysis Effects 0.000 claims abstract description 9
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 9
- 239000002245 particle Substances 0.000 claims abstract description 9
- 239000002086 nanomaterial Substances 0.000 claims abstract description 6
- 238000006243 chemical reaction Methods 0.000 claims description 27
- 239000002253 acid Substances 0.000 claims description 26
- 238000003756 stirring Methods 0.000 claims description 23
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 18
- 238000010438 heat treatment Methods 0.000 claims description 15
- 150000007524 organic acids Chemical class 0.000 claims description 14
- 239000007787 solid Substances 0.000 claims description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 12
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 claims description 10
- 239000002243 precursor Substances 0.000 claims description 10
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 9
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 9
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 9
- 238000000926 separation method Methods 0.000 claims description 9
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims description 8
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical group Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 claims description 8
- LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical compound [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 claims description 8
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 claims description 7
- 238000000967 suction filtration Methods 0.000 claims description 7
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 claims description 6
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 claims description 6
- SCPWMSBAGXEGPW-UHFFFAOYSA-N dodecyl(trimethoxy)silane Chemical compound CCCCCCCCCCCC[Si](OC)(OC)OC SCPWMSBAGXEGPW-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims description 6
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 claims description 6
- 229910001631 strontium chloride Inorganic materials 0.000 claims description 6
- AHBGXTDRMVNFER-UHFFFAOYSA-L strontium dichloride Chemical compound [Cl-].[Cl-].[Sr+2] AHBGXTDRMVNFER-UHFFFAOYSA-L 0.000 claims description 6
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 claims description 5
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 claims description 5
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 5
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 claims description 5
- 229910000403 monosodium phosphate Inorganic materials 0.000 claims description 5
- 235000019799 monosodium phosphate Nutrition 0.000 claims description 5
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 claims description 5
- 239000005711 Benzoic acid Substances 0.000 claims description 4
- 239000003513 alkali Substances 0.000 claims description 4
- 235000010233 benzoic acid Nutrition 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- 230000003472 neutralizing effect Effects 0.000 claims description 4
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 4
- 239000003784 tall oil Substances 0.000 claims description 4
- 229910000404 tripotassium phosphate Inorganic materials 0.000 claims description 4
- 235000019798 tripotassium phosphate Nutrition 0.000 claims description 4
- LDMOEFOXLIZJOW-UHFFFAOYSA-N 1-dodecanesulfonic acid Chemical compound CCCCCCCCCCCCS(O)(=O)=O LDMOEFOXLIZJOW-UHFFFAOYSA-N 0.000 claims description 3
- BTXXTMOWISPQSJ-UHFFFAOYSA-N 4,4,4-trifluorobutan-2-one Chemical compound CC(=O)CC(F)(F)F BTXXTMOWISPQSJ-UHFFFAOYSA-N 0.000 claims description 3
- 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 claims description 3
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims description 3
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 3
- 235000011037 adipic acid Nutrition 0.000 claims description 3
- 239000001361 adipic acid Substances 0.000 claims description 3
- 239000000539 dimer Substances 0.000 claims description 3
- YGUFXEJWPRRAEK-UHFFFAOYSA-N dodecyl(triethoxy)silane Chemical compound CCCCCCCCCCCC[Si](OCC)(OCC)OCC YGUFXEJWPRRAEK-UHFFFAOYSA-N 0.000 claims description 3
- 230000001804 emulsifying effect Effects 0.000 claims description 3
- 238000007720 emulsion polymerization reaction Methods 0.000 claims description 3
- KEMQGTRYUADPNZ-UHFFFAOYSA-N heptadecanoic acid Chemical compound CCCCCCCCCCCCCCCCC(O)=O KEMQGTRYUADPNZ-UHFFFAOYSA-N 0.000 claims description 3
- CZWLNMOIEMTDJY-UHFFFAOYSA-N hexyl(trimethoxy)silane Chemical compound CCCCCC[Si](OC)(OC)OC CZWLNMOIEMTDJY-UHFFFAOYSA-N 0.000 claims description 3
- -1 linoleic acid, dehydrated ricinoleic acid Chemical class 0.000 claims description 3
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 3
- MSRJTTSHWYDFIU-UHFFFAOYSA-N octyltriethoxysilane Chemical compound CCCCCCCC[Si](OCC)(OCC)OCC MSRJTTSHWYDFIU-UHFFFAOYSA-N 0.000 claims description 3
- 235000010333 potassium nitrate Nutrition 0.000 claims description 3
- 239000004323 potassium nitrate Substances 0.000 claims description 3
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 claims description 3
- 229910052939 potassium sulfate Inorganic materials 0.000 claims description 3
- 235000011151 potassium sulphates Nutrition 0.000 claims description 3
- WBHHMMIMDMUBKC-XLNAKTSKSA-N ricinelaidic acid Chemical compound CCCCCC[C@@H](O)C\C=C\CCCCCCCC(O)=O WBHHMMIMDMUBKC-XLNAKTSKSA-N 0.000 claims description 3
- 229960003656 ricinoleic acid Drugs 0.000 claims description 3
- FEUQNCSVHBHROZ-UHFFFAOYSA-N ricinoleic acid Natural products CCCCCCC(O[Si](C)(C)C)CC=CCCCCCCCC(=O)OC FEUQNCSVHBHROZ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 3
- 235000011152 sodium sulphate Nutrition 0.000 claims description 3
- BNCXNUWGWUZTCN-UHFFFAOYSA-N trichloro(dodecyl)silane Chemical compound CCCCCCCCCCCC[Si](Cl)(Cl)Cl BNCXNUWGWUZTCN-UHFFFAOYSA-N 0.000 claims description 3
- LFXJGGDONSCPOF-UHFFFAOYSA-N trichloro(hexyl)silane Chemical compound CCCCCC[Si](Cl)(Cl)Cl LFXJGGDONSCPOF-UHFFFAOYSA-N 0.000 claims description 3
- RCHUVCPBWWSUMC-UHFFFAOYSA-N trichloro(octyl)silane Chemical compound CCCCCCCC[Si](Cl)(Cl)Cl RCHUVCPBWWSUMC-UHFFFAOYSA-N 0.000 claims description 3
- SZHOJFHSIKHZHA-UHFFFAOYSA-N tridecanoic acid Chemical compound CCCCCCCCCCCCC(O)=O SZHOJFHSIKHZHA-UHFFFAOYSA-N 0.000 claims description 3
- WUMSTCDLAYQDNO-UHFFFAOYSA-N triethoxy(hexyl)silane Chemical compound CCCCCC[Si](OCC)(OCC)OCC WUMSTCDLAYQDNO-UHFFFAOYSA-N 0.000 claims description 3
- SRPWOOOHEPICQU-UHFFFAOYSA-N trimellitic anhydride Chemical compound OC(=O)C1=CC=C2C(=O)OC(=O)C2=C1 SRPWOOOHEPICQU-UHFFFAOYSA-N 0.000 claims description 3
- NMEPHPOFYLLFTK-UHFFFAOYSA-N trimethoxy(octyl)silane Chemical compound CCCCCCCC[Si](OC)(OC)OC NMEPHPOFYLLFTK-UHFFFAOYSA-N 0.000 claims description 3
- 239000003240 coconut oil Substances 0.000 claims description 2
- 235000019864 coconut oil Nutrition 0.000 claims description 2
- DPUOLQHDNGRHBS-UHFFFAOYSA-N Brassidinsaeure Natural products CCCCCCCCC=CCCCCCCCCCCCC(O)=O DPUOLQHDNGRHBS-UHFFFAOYSA-N 0.000 claims 1
- URXZXNYJPAJJOQ-UHFFFAOYSA-N Erucic acid Natural products CCCCCCC=CCCCCCCCCCCCC(O)=O URXZXNYJPAJJOQ-UHFFFAOYSA-N 0.000 claims 1
- DPUOLQHDNGRHBS-KTKRTIGZSA-N erucic acid Chemical compound CCCCCCCC\C=C/CCCCCCCCCCCC(O)=O DPUOLQHDNGRHBS-KTKRTIGZSA-N 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 4
- 230000000052 comparative effect Effects 0.000 description 5
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 4
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- LWBPNIJBHRISSS-UHFFFAOYSA-L beryllium dichloride Chemical compound Cl[Be]Cl LWBPNIJBHRISSS-UHFFFAOYSA-L 0.000 description 4
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 3
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 3
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 3
- 239000005642 Oleic acid Substances 0.000 description 3
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 3
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 2
- 229910021586 Nickel(II) chloride Inorganic materials 0.000 description 2
- 229910021550 Vanadium Chloride Inorganic materials 0.000 description 2
- OEYOHULQRFXULB-UHFFFAOYSA-N arsenic trichloride Chemical compound Cl[As](Cl)Cl OEYOHULQRFXULB-UHFFFAOYSA-N 0.000 description 2
- WDIHJSXYQDMJHN-UHFFFAOYSA-L barium chloride Chemical compound [Cl-].[Cl-].[Ba+2] WDIHJSXYQDMJHN-UHFFFAOYSA-L 0.000 description 2
- 229910001626 barium chloride Inorganic materials 0.000 description 2
- 229910001627 beryllium chloride Inorganic materials 0.000 description 2
- 239000001110 calcium chloride Substances 0.000 description 2
- 229910001628 calcium chloride Inorganic materials 0.000 description 2
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 description 2
- 229960002089 ferrous chloride Drugs 0.000 description 2
- UPWPDUACHOATKO-UHFFFAOYSA-K gallium trichloride Chemical compound Cl[Ga](Cl)Cl UPWPDUACHOATKO-UHFFFAOYSA-K 0.000 description 2
- NMCUIPGRVMDVDB-UHFFFAOYSA-L iron dichloride Chemical compound Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 description 2
- HWSZZLVAJGOAAY-UHFFFAOYSA-L lead(II) chloride Chemical compound Cl[Pb]Cl HWSZZLVAJGOAAY-UHFFFAOYSA-L 0.000 description 2
- 229910001629 magnesium chloride Inorganic materials 0.000 description 2
- QMMRZOWCJAIUJA-UHFFFAOYSA-L nickel dichloride Chemical compound Cl[Ni]Cl QMMRZOWCJAIUJA-UHFFFAOYSA-L 0.000 description 2
- RPESBQCJGHJMTK-UHFFFAOYSA-I pentachlorovanadium Chemical compound [Cl-].[Cl-].[Cl-].[Cl-].[Cl-].[V+5] RPESBQCJGHJMTK-UHFFFAOYSA-I 0.000 description 2
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- IEXRMSFAVATTJX-UHFFFAOYSA-N tetrachlorogermane Chemical compound Cl[Ge](Cl)(Cl)Cl IEXRMSFAVATTJX-UHFFFAOYSA-N 0.000 description 2
- HPGGPRDJHPYFRM-UHFFFAOYSA-J tin(iv) chloride Chemical compound Cl[Sn](Cl)(Cl)Cl HPGGPRDJHPYFRM-UHFFFAOYSA-J 0.000 description 2
- FAQYAMRNWDIXMY-UHFFFAOYSA-N trichloroborane Chemical compound ClB(Cl)Cl FAQYAMRNWDIXMY-UHFFFAOYSA-N 0.000 description 2
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 235000013162 Cocos nucifera Nutrition 0.000 description 1
- 244000060011 Cocos nucifera Species 0.000 description 1
- 235000010469 Glycine max Nutrition 0.000 description 1
- 244000068988 Glycine max Species 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
- UEEJHVSXFDXPFK-UHFFFAOYSA-N N-dimethylaminoethanol Chemical compound CN(C)CCO UEEJHVSXFDXPFK-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 229920000180 alkyd Polymers 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 239000010985 leather Substances 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
- 235000020778 linoleic acid Nutrition 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000010499 rapseed oil Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000011973 solid acid Substances 0.000 description 1
- 235000012424 soybean oil Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
- C09D167/08—Polyesters modified with higher fatty oils or their acids, or with natural resins or resin acids
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
-
- 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
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- 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
- C08K2201/011—Nanostructured additives
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Inorganic Chemistry (AREA)
- Polyesters Or Polycarbonates (AREA)
Abstract
The invention discloses a nano modified water-based polyester resin and a preparation method thereof, wherein the water-based polyester resin comprises the following components in percentage by mass: 50-70% of polymer solution; 2-8% of nano dispersion liquid; 30-40% of deionized water. The invention adopts the method of modifying nano materials to prepare the water-based polyester resin which is uniformly distributed on the interface of water-polymer colloidal particles and can prevent the water-based polyester resin from contacting with water so as to hinder the hydrolysis of ester bonds, thereby having excellent stability and hydrolysis resistance.
Description
Technical Field
The invention belongs to the field of water-based paint, and particularly relates to nano modified water-based polyester resin and a preparation method thereof.
Background
The water-based polyester resin has excellent mechanical properties and flexibility, and is widely used in the fields of metal baking varnish, leather, woodware, decoration and the like. In general, the synthesis of the water-based polyester resin needs to introduce carboxyl, sulfonic group and other groups, and then amine substances are used for neutralization to form salts. Because ester bonds are easy to hydrolyze under alkaline conditions, the storage time of the existing waterborne polyester resin is less than 3 months, and the stability is poor.
Disclosure of Invention
The invention aims to solve the problems and provide a nano modified water-based polyester resin and a preparation method thereof.
The purpose of the invention is realized by the following steps:
the nano modified water-based polyester resin comprises the following components in percentage by mass:
50-70% of polymer solution;
2-8% of nano dispersion liquid;
30-40% of deionized water;
the sum of the mass percentages of the components is 100 percent;
the polymer solution is prepared from the following components in percentage by mass:
adding 45-65% of organic acid or organic acid anhydride and 10-30% of organic alcohol into a reaction kettle, heating to 130-class temperature of 150 ℃, after the materials are completely dissolved, starting stirring, introducing nitrogen into the reaction kettle, heating to 210-class temperature of 230 ℃ at the speed of 10 ℃/h, continuously removing generated water through a water separator until the acid value reaches 12 +/-0.5 mgKOH/g, then cooling to 120 +/-10 ℃, adding 20-50% of ethylene glycol monobutyl ether, and stirring and dissolving uniformly, wherein the sum of the mass percentage of the components is 100%;
the nano dispersion liquid comprises the following components in parts by weight:
the main element precursor is selected from at least one of sodium chloride, calcium chloride, magnesium chloride, titanium tetrachloride, aluminum trichloride, ferrous chloride, copper chloride, beryllium chloride, strontium chloride, barium chloride, boron chloride, germanium chloride, tin chloride, lead chloride, arsenic chloride, strontium chloride, nickel chloride, vanadium chloride and gallium chloride;
the doping element precursor is selected from at least one of sodium dihydrogen phosphate, tripotassium phosphate, potassium nitrate, sodium sulfate and potassium sulfate;
the lipophilic donor is at least one selected from n-hexyltrichlorosilane, n-hexyltrimethoxysilane, n-hexyltriethoxysilane, n-octyltrichlorosilane, n-octyltrimethoxysilane, n-octyltriethoxysilane, dodecyltrichlorosilane, dodecyltrimethoxysilane, dodecyltriethoxysilane, dodecylcarboxylic acid, hexadecylcarboxylic acid and dodecylsulfonic acid.
The organic acid or organic acid anhydride in the nano modified water-based polyester resin is at least one selected from the group consisting of phthalic anhydride, isophthalic acid, maleic anhydride, adipic acid, sebacic acid, trimellitic anhydride, benzoic acid, abietic acid, soya oleic acid, linoleic acid, dehydrated ricinoleic acid, rape oleic acid, tall oil acid, coconut oleic acid, ricinoleic acid and dimer acid.
The organic alcohol in the nano modified water-based polyester resin is at least one selected from ethylene glycol, propylene glycol, glycerol, trimethylolpropane, pentaerythritol, 1, 4-butanediol and diethylene glycol.
The pH value of the nano dispersion liquid in the nano modified water-based polyester resin is 2-5, and/or the solid content is 15% -25%, and/or the viscosity value is controlled to be 10-25s when the nano modified water-based polyester resin is coated in a 4-cup mode at the temperature of 25 ℃.
The particle size of the nano material in the nano dispersion liquid in the nano modified water-based polyester resin is 15nm-200 nm.
The preparation method of the nano dispersion liquid in the nano modified water-based polyester resin comprises the following steps:
(1) hydrolysis:
sequentially adding 20-30 parts of deionized water, an alkali neutralizing agent and 4-7 parts of lower alcohol into a reaction kettle, and starting stirring; adding the rest deionized water and the rest lower alcohol into a head tank, stirring at the speed of 300-; dropwise adding the solution in the elevated tank into the reaction kettle at a constant speed for 2-5h, continuously reacting for 1-5h after dropwise adding is completed, heating to 80-120 ℃, reacting for 2-8h, and cooling to room temperature;
(2) centrifugal separation:
introducing the liquid in the reactor into a centrifuge for centrifugal separation at the speed of 3000-5000r/min for 30-60 min;
(3) and (3) suction filtration:
and (3) carrying out suction filtration on the liquid after centrifugal separation under the vacuum pressure of-0.4 Mpa to-0.9 Mpa, and filtering out solid matters to obtain clear liquid, namely the nano dispersion liquid for emulsion polymerization.
The invention also provides a preparation method of the nano modified waterborne polyester resin, which comprises the following steps:
(1) adding the polymer solution into an emulsifying kettle, and starting stirring;
(2) and (3) dropwise adding the nano dispersion liquid into the polymer solution, and then dropwise adding deionized water until a continuous water phase is formed, so as to obtain the nano modified waterborne polyester resin.
The invention adopts the method of modifying the nano material to prepare the water-based polyester resin which is uniformly distributed on the interface of the water-polymer colloidal particles, can prevent the water-based polyester resin from contacting with water so as to prevent the hydrolysis of ester bonds, and has excellent stability and hydrolysis resistance.
Detailed Description
The present invention will be further described with reference to the following examples.
The nano modified water-based polyester resin comprises the following components in percentage by mass:
50-70% of polymer solution;
2-8% of nano dispersion liquid;
30-40% of deionized water;
the sum of the mass percentages of the components is 100 percent;
wherein,
the polymer solution comprises the following components in percentage by mass: 20-30% of ethylene glycol monobutyl ether, 35-65% of organic acid or organic acid anhydride and 10-30% of organic alcohol, wherein the sum of the mass percentages of the components is 100%;
the organic acid or organic acid anhydride is at least one selected from phthalic anhydride, isophthalic acid, maleic anhydride, adipic acid, sebacic acid, trimellitic anhydride, benzoic acid, abietic acid, soya oil acid, linoleic acid, dehydrated ricinoleic acid, rape oil acid, tall oil acid, coconut oil acid, ricinoleic acid and dimer acid;
the organic alcohol is at least one selected from ethylene glycol, propylene glycol, glycerol, trimethylolpropane, pentaerythritol, 1, 4-butanediol and diethylene glycol;
the polymer solution was prepared by the following process:
adding 45-65% of organic acid or organic acid anhydride and 10-30% of organic alcohol into a reaction kettle, heating to 130-class temperature of 150 ℃, after the materials are completely dissolved, starting stirring, introducing nitrogen into the reaction kettle, heating to 210-class temperature of 230 ℃ at the speed of 10 ℃/h, continuously removing generated water through a water separator until the acid value reaches 12 +/-0.5 mgKOH/g, then cooling to 120 +/-10 ℃, adding 20-50% of ethylene glycol monobutyl ether, and stirring and dissolving uniformly, wherein the sum of the mass percentage of the components is 100%.
The nano dispersion liquid comprises the following components in parts by weight:
the main element precursor is selected from at least one of sodium chloride, calcium chloride, magnesium chloride, titanium tetrachloride, aluminum trichloride, ferrous chloride, copper chloride, beryllium chloride, strontium chloride, barium chloride, boron chloride, germanium chloride, tin chloride, lead chloride, arsenic chloride, strontium chloride, nickel chloride, vanadium chloride and gallium chloride;
the doping element precursor is selected from at least one of sodium dihydrogen phosphate, tripotassium phosphate, potassium nitrate, sodium sulfate and potassium sulfate;
the lipophilic donor is at least one selected from n-hexyltrichlorosilane, n-hexyltrimethoxysilane, n-hexyltriethoxysilane, n-octyltrichlorosilane, n-octyltrimethoxysilane, n-octyltriethoxysilane, dodecyltrichlorosilane, dodecyltrimethoxysilane, dodecyltriethoxysilane, dodecylcarboxylic acid, hexadecylcarboxylic acid, and dodecylsulfonic acid.
The pH value of the nano dispersion liquid is 2-5, and/or the solid content is 15% -25%, and/or the viscosity value is controlled to be 10-25s when the nano dispersion liquid is coated in a 4-cup mode under the condition of 25 ℃, and the particle size of the nano material in the nano dispersion liquid is 15nm-200 nm.
The preparation method of the nano dispersion liquid in the nano modified waterborne polyester resin comprises the following steps:
(1) hydrolysis:
sequentially adding 20-30 parts of deionized water, an alkali neutralizing agent and 4-7 parts of lower alcohol into a reaction kettle, and starting stirring; adding the rest deionized water and the rest lower alcohol into a head tank, stirring at the speed of 300-; dropwise adding the solution in the elevated tank into the reaction kettle at a constant speed for 2-5h, continuously reacting for 1-5h after dropwise adding is completed, heating to 80-120 ℃, reacting for 2-8h, and cooling to room temperature;
(2) centrifugal separation:
introducing the liquid in the reactor into a centrifuge for centrifugal separation at the speed of 3000-5000r/min for 30-60 min;
(3) and (3) suction filtration:
and (3) carrying out suction filtration on the liquid after centrifugal separation under the vacuum pressure of-0.4 Mpa to-0.9 Mpa, and filtering out solid matters to obtain clear liquid, namely the nano dispersion liquid for emulsion polymerization.
The preparation method of the nano modified waterborne polyester resin comprises the following steps:
(1) adding the polymer solution into an emulsifying kettle, and starting stirring;
(2) and (3) dropwise adding the nano dispersion liquid into the polymer solution, and then dropwise adding deionized water until a continuous water phase is formed.
Example 1:
the polymer solution comprises the following components in percentage by mass:
the polymerization process comprises the following steps: adding phthalic anhydride, linoleic acid and pentaerythritol into a reaction kettle, and heating to 140 ℃ until the materials are completely dissolved. Introducing nitrogen into the reaction kettle, heating to 220 ℃ at the speed of 10 ℃/h, and continuously removing water through a water separator. The acid value was sampled and measured until the acid value was less than 12 mgKOH/g. Then cooling to 120 ℃, adding ethylene glycol butyl ether and stirring to dissolve the mixture evenly.
The nano dispersion liquid comprises the following components in parts by weight:
adding 26 parts of deionized water and 2 parts of ethanol into a head tank, then slowly adding 28 parts of titanium tetrachloride, 1.2 parts of sodium dihydrogen phosphate and 4.8 parts of dodecyl trimethoxy silane in sequence, and uniformly stirring for later use. 30 parts of deionized water, 5 parts of ethanol and 3 parts of ammonia water are added into a reaction kettle and stirred at the speed of 500 r/min. And dropwise adding the solution in the head tank, finishing dropwise adding for 3 hours, and reacting for 2 hours after dropwise adding. Then the temperature is increased to 90 ℃, the reaction is carried out for 3 hours, and then the temperature is reduced to the room temperature.
Centrifuging the reaction solution for 45min at 4000r/min by using a centrifuge, then performing suction filtration under the vacuum pressure of-0.4 Mpa to-0.9 Mpa, and filtering out solids to obtain clear liquid, namely the nano dispersion liquid of the embodiment 1. The dispersion had a solids content of 20%, a pH of 3.2, an average particle size of 35nm and a viscosity of 12s at 25 ℃ over-4 cups.
And transferring 55 parts of the polymer solution into a dispersion kettle, slowly dripping 6 parts of the nano dispersion liquid, and then dripping 39 parts of deionized water until a water continuous phase is formed to obtain the nano modified waterborne polyester resin of the embodiment.
Example 2:
preparation of polymer solution:
the polymerization process comprises the following steps: adding isophthalic acid, trimethylolpropane and tall oil acid into a reaction kettle, and heating to 140 ℃ until the materials are completely dissolved. Introducing nitrogen into the reaction kettle, heating to 220 ℃ at the speed of 10 ℃/h, and continuously removing water through a water separator. The acid value was sampled and measured until the acid value was less than 12 mgKOH/g. Then cooling to 120 ℃, adding ethylene glycol butyl ether and stirring to dissolve the mixture evenly.
The nano dispersion liquid comprises the following components in parts by weight:
adding 25 parts of deionized water and 3 parts of isopropanol into a head tank, then slowly adding 22 parts of titanium tetrachloride, 10 parts of aluminum chloride, 2.5 parts of sodium dihydrogen phosphate and 7 parts of dodecyl trimethoxy silane in sequence, and uniformly stirring for later use. 20 parts of deionized water, 6 parts of isopropanol and 4.5 parts of N, N-dimethylethanolamine are added into a reaction kettle, and stirring is started. And dropwise adding the solution in the head tank, finishing dropwise adding for 2.5 hours, and reacting for 3 hours after dropwise adding. Then the temperature is increased to 80 ℃, the reaction is carried out for 4 hours, and then the temperature is reduced to the room temperature. The reaction solution was centrifuged by a centrifuge, and then filtered to remove the solid, to obtain a clear solution, i.e., the nanodispersion of example 2, having a solid content of 23%, a pH of 3, an average particle diameter of 60nm, and a viscosity of 13s in 4 cups at 25 ℃.
And transferring 52 parts of the polymer solution into a dispersion kettle, slowly dropwise adding 5.5 parts of the nano dispersion liquid, and then dropwise adding 42.5 parts of deionized water until a water continuous phase is formed, thereby obtaining the nano modified waterborne polyester resin of the embodiment.
Example 3:
preparation of polymer solution:
the polymerization process comprises the following steps: adding trimethylolpropane, diethylene glycol, isophthalic acid, phthalic anhydride and benzoic acid into a reaction kettle, and heating to 140 ℃ until the materials are completely dissolved. Introducing nitrogen into the reaction kettle, heating to 220 ℃ at the speed of 10 ℃/h, and continuously removing water through a water separator. The acid value was sampled and measured until the acid value was less than 12 mgKOH/g. Then cooling to 120 ℃, adding ethylene glycol butyl ether and stirring to dissolve the mixture evenly.
The nano dispersion liquid comprises the following components in parts by weight:
adding 24.3 parts of deionized water and 4 parts of propanol into a head tank, then slowly adding 20 parts of titanium tetrachloride, 11 parts of strontium chloride, 2.2 parts of tripotassium phosphate and 6 parts of dodecyl trimethoxy silane in sequence, and uniformly stirring for later use. 25 parts of deionized water, 4 parts of propanol and 3.5 parts of monoethanolamine are added to the reaction kettle and stirred at a speed of 800 r/min. And dropwise adding the solution in the head tank, finishing dropwise adding for 3.5 hours, and reacting for 4 hours after dropwise adding. Then the temperature is increased to 95 ℃, the reaction is carried out for 5 hours, and then the temperature is reduced to the room temperature.
The reaction solution was centrifuged at 4500r/min for 45min, and then vacuum filtered at-0.4 MPa to-0.9 MPa, and the solid was filtered off to obtain the clear solution, i.e., the nanodispersion of example 3. The nano dispersion has a solid content of 21.7%, a pH of 2.9, an average particle diameter of 49nm, and a viscosity of 17s at 25 ℃ after coating in 4 cups.
And (3) transferring 57 parts of the polymer solution into a dispersion kettle, slowly dropwise adding 3.2 parts of the nano dispersion liquid, and then dropwise adding 39.8 parts of deionized water until a water continuous phase is formed, thereby obtaining the nano modified waterborne polyester resin of the embodiment.
Examples 1-3 and comparative examples the results of the storage test are shown in table 1:
table 1 examples 1-3 and comparative examples storability test results
Example 1 | Example 2 | Example 3 | Comparative example | |
Acid value of solid, before storage | 10mgKOH/g | 8mgKOH/g | 7mgKOH/g | 45mgKOH/g |
Solid acid value, 70 ℃/14d | 12mgKOH/g | 11mgKOH/g | 11mgKOH/g | 91mgKOH/g |
Comparative example CM-0075 waterborne alkyd resin
It can be seen that although the acid values of the examples of the present invention are different from those of the comparative examples, the acid values of the examples are hardly changed after the same storage conditions, while the acid values of the examples are increased by more than 1-fold, indicating that most of the ester bonds are hydrolyzed to form acids and alcohols.
The invention adopts the method of modifying the nano material to prepare the water-based polyester resin which is uniformly distributed on the interface of the water-polymer colloidal particles, can prevent the water-based polyester resin from contacting with water so as to prevent the hydrolysis of ester bonds, and has excellent stability and hydrolysis resistance.
The above embodiments are provided only for illustrating the present invention and not for limiting the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and therefore all equivalent technical solutions should also fall within the scope of the present invention, and should be defined by the claims.
Claims (3)
1. The nano modified waterborne polyester resin is characterized by comprising the following components in percentage by mass:
50-70% of polymer solution;
2-8% of nano dispersion liquid;
30-40% of deionized water;
the sum of the mass percentages of the components is 100 percent;
the polymer solution is prepared from the following components in percentage by mass:
adding 45-65% of organic acid or organic acid anhydride and 10-30% of organic alcohol into a reaction kettle, heating to 130-plus-150 ℃, after the materials are completely dissolved, starting stirring, introducing nitrogen into the reaction kettle, heating to 210-plus-230 ℃ at the speed of 10 ℃/h, continuously removing generated water through a water separator until the acid value reaches 12 +/-0.5 mgKOH/g, then cooling to 120 +/-10 ℃, adding 20-50% of ethylene glycol monobutyl ether, stirring and dissolving uniformly, wherein the sum of the mass percentages of the components is 100%;
the organic acid or the organic acid anhydride is selected from at least one of phthalic anhydride, isophthalic acid, maleic anhydride, adipic acid, sebacic acid, trimellitic anhydride, benzoic acid, abietic acid, soyaoleic acid, linoleic acid, dehydrated ricinoleic acid, erucic acid, tall oil acid, coconut oil acid, ricinoleic acid and dimer acid;
the organic alcohol is at least one selected from ethylene glycol, propylene glycol, glycerol, trimethylolpropane, pentaerythritol, 1, 4-butanediol and diethylene glycol;
the nano dispersion liquid comprises the following components in parts by weight:
25-35 parts of a main element precursor;
1-4 parts of a doping element precursor;
3-8 parts of a lipophilic donor;
1-5 parts of an alkali neutralizing agent;
5-10 parts of lower alcohol;
50-85 parts of deionized water;
the main element precursor is selected from titanium tetrachloride, titanium tetrachloride and aluminum trichloride, or titanium tetrachloride and strontium chloride;
the doping element precursor is selected from at least one of sodium dihydrogen phosphate, tripotassium phosphate, potassium nitrate, sodium sulfate and potassium sulfate;
the oleophylic donor is selected from at least one of n-hexyltrichlorosilane, n-hexyltrimethoxysilane, n-hexyltriethoxysilane, n-octyltrichlorosilane, n-octyltrimethoxysilane, n-octyltriethoxysilane, dodecyltrichlorosilane, dodecyltrimethoxysilane, dodecyltriethoxysilane, dodecylcarboxylic acid, hexadecylcarboxylic acid and dodecylsulfonic acid;
the preparation method of the nano dispersion liquid comprises the following steps:
(1) hydrolysis:
sequentially putting 20-30 parts of the deionized water, the alkali neutralizing agent and 4-7 parts of the lower alcohol into a reaction kettle, and starting stirring; adding the rest deionized water and the rest lower alcohol into a head tank, stirring at the speed of 300-800r/min, sequentially and slowly adding the main element precursor, the doped element precursor and the lipophilic donor, and stirring to form a uniform solution; dropwise adding the solution in the elevated tank into the reaction kettle at a constant speed for 2-5h, continuously reacting for 1-5h after dropwise adding, heating to 80-120 ℃, reacting for 2-8h, and cooling to room temperature;
(2) centrifugal separation:
introducing the liquid in the reactor into a centrifuge for centrifugal separation at the speed of 3000-5000r/min for 30-60 min;
(3) and (3) suction filtration:
carrying out suction filtration on the liquid after centrifugal separation under the vacuum pressure of-0.4 Mpa to-0.9 Mpa, and filtering out solid matters to obtain clear liquid, namely the nano dispersion liquid for emulsion polymerization;
the preparation method of the nano modified water-based polyester resin comprises the following steps:
(1) adding the polymer solution into an emulsifying kettle, and starting stirring;
(2) and (3) dropwise adding the nano dispersion liquid into the polymer solution, and then dropwise adding deionized water until a continuous water phase is formed, so as to obtain the nano modified waterborne polyester resin.
2. The nano-modified waterborne polyester resin of claim 1, wherein the nano-dispersion has a pH of 2 to 5, and/or a solid content of 15% to 25%, and/or a viscosity value controlled at 25 ℃ for 10 to 25s in-4 cups.
3. The nano-modified waterborne polyester resin of claim 1, wherein the nano-material in the nano-dispersion has a particle size of 15nm to 200 nm.
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Denomination of invention: A nano modified waterborne polyester resin and its preparation method Granted publication date: 20220909 Pledgee: Shanghai Rural Commercial Bank Co.,Ltd. Jinshan sub branch Pledgor: SHANGHAI MORFANT NEW MATERIAL TECHNOLOGY Co.,Ltd. Registration number: Y2024310000172 |