CN109111563A - Pigment dispersing resin and preparation method thereof for bottom surface unification cathode electrophoresis dope - Google Patents
Pigment dispersing resin and preparation method thereof for bottom surface unification cathode electrophoresis dope Download PDFInfo
- Publication number
- CN109111563A CN109111563A CN201810797749.1A CN201810797749A CN109111563A CN 109111563 A CN109111563 A CN 109111563A CN 201810797749 A CN201810797749 A CN 201810797749A CN 109111563 A CN109111563 A CN 109111563A
- Authority
- CN
- China
- Prior art keywords
- acid
- pigment dispersing
- cathode electrophoresis
- electrophoresis dope
- dispersing resin
- 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.)
- Granted
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- 238000001962 electrophoresis Methods 0.000 title claims abstract description 46
- 229920005989 resin Polymers 0.000 title claims abstract description 40
- 239000011347 resin Substances 0.000 title claims abstract description 40
- 239000000049 pigment Substances 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title claims description 19
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 13
- 239000004593 Epoxy Substances 0.000 claims abstract description 12
- 125000001453 quaternary ammonium group Chemical group 0.000 claims abstract description 12
- 238000006243 chemical reaction Methods 0.000 claims description 34
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 34
- 239000002253 acid Substances 0.000 claims description 18
- 239000012948 isocyanate Substances 0.000 claims description 18
- 239000003822 epoxy resin Substances 0.000 claims description 17
- 229920000647 polyepoxide Polymers 0.000 claims description 17
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 14
- 150000002513 isocyanates Chemical class 0.000 claims description 14
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 12
- 150000001875 compounds Chemical class 0.000 claims description 12
- 235000019441 ethanol Nutrition 0.000 claims description 12
- 229910052739 hydrogen Inorganic materials 0.000 claims description 10
- 239000001257 hydrogen Substances 0.000 claims description 10
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims description 9
- 239000004970 Chain extender Substances 0.000 claims description 8
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 8
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 claims description 8
- 239000005056 polyisocyanate Substances 0.000 claims description 8
- 229920001228 polyisocyanate Polymers 0.000 claims description 8
- -1 isooctyl Chemical group 0.000 claims description 7
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 claims description 6
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 6
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 6
- 150000002148 esters Chemical class 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 6
- 238000010992 reflux Methods 0.000 claims description 6
- 238000010792 warming Methods 0.000 claims description 6
- 229930185605 Bisphenol Natural products 0.000 claims description 5
- 239000003054 catalyst Substances 0.000 claims description 5
- 125000003700 epoxy group Chemical group 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- ALRHLSYJTWAHJZ-UHFFFAOYSA-N 3-hydroxypropionic acid Chemical compound OCCC(O)=O ALRHLSYJTWAHJZ-UHFFFAOYSA-N 0.000 claims description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 4
- OPKOKAMJFNKNAS-UHFFFAOYSA-N N-methylethanolamine Chemical compound CNCCO OPKOKAMJFNKNAS-UHFFFAOYSA-N 0.000 claims description 4
- 125000003118 aryl group Chemical group 0.000 claims description 4
- WGQKYBSKWIADBV-UHFFFAOYSA-N benzylamine Chemical compound NCC1=CC=CC=C1 WGQKYBSKWIADBV-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 125000004432 carbon atom Chemical group C* 0.000 claims description 4
- 239000004310 lactic acid Substances 0.000 claims description 4
- 235000014655 lactic acid Nutrition 0.000 claims description 4
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 4
- 150000002924 oxiranes Chemical class 0.000 claims description 4
- 150000003335 secondary amines Chemical class 0.000 claims description 4
- OAOABCKPVCUNKO-UHFFFAOYSA-N 8-methyl Nonanoic acid Chemical compound CC(C)CCCCCCC(O)=O OAOABCKPVCUNKO-UHFFFAOYSA-N 0.000 claims description 3
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 3
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 claims description 3
- 238000012986 modification Methods 0.000 claims description 3
- 230000004048 modification Effects 0.000 claims description 3
- OZCWUNHGNVXCCO-UHFFFAOYSA-N oxiran-2-ylmethyl hydrogen carbonate Chemical group OC(=O)OCC1CO1 OZCWUNHGNVXCCO-UHFFFAOYSA-N 0.000 claims description 3
- 229920000570 polyether Polymers 0.000 claims description 3
- 229920005862 polyol Polymers 0.000 claims description 3
- 150000003077 polyols Chemical class 0.000 claims description 3
- MTZUIIAIAKMWLI-UHFFFAOYSA-N 1,2-diisocyanatobenzene Chemical class O=C=NC1=CC=CC=C1N=C=O MTZUIIAIAKMWLI-UHFFFAOYSA-N 0.000 claims description 2
- VZXPHDGHQXLXJC-UHFFFAOYSA-N 1,6-diisocyanato-5,6-dimethylheptane Chemical compound O=C=NC(C)(C)C(C)CCCCN=C=O VZXPHDGHQXLXJC-UHFFFAOYSA-N 0.000 claims description 2
- BPIUIOXAFBGMNB-UHFFFAOYSA-N 1-hexoxyhexane Chemical compound CCCCCCOCCCCCC BPIUIOXAFBGMNB-UHFFFAOYSA-N 0.000 claims description 2
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 claims description 2
- LXBGSDVWAMZHDD-UHFFFAOYSA-N 2-methyl-1h-imidazole Chemical compound CC1=NC=CN1 LXBGSDVWAMZHDD-UHFFFAOYSA-N 0.000 claims description 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 2
- ULKLGIFJWFIQFF-UHFFFAOYSA-N 5K8XI641G3 Chemical compound CCC1=NC=C(C)N1 ULKLGIFJWFIQFF-UHFFFAOYSA-N 0.000 claims description 2
- UGAKJPMSFVMKEF-UHFFFAOYSA-N C=1C=CC=CC=1[P](C=1C=CC=CC=1)(Br)C1=CC=CC=C1 Chemical compound C=1C=CC=CC=1[P](C=1C=CC=CC=1)(Br)C1=CC=CC=C1 UGAKJPMSFVMKEF-UHFFFAOYSA-N 0.000 claims description 2
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 claims description 2
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 claims description 2
- 239000005058 Isophorone diisocyanate Substances 0.000 claims description 2
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical group OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 2
- 235000011054 acetic acid Nutrition 0.000 claims description 2
- 150000001334 alicyclic compounds Chemical class 0.000 claims description 2
- KPTLPIAOSCGETM-UHFFFAOYSA-N benzene 1,2-diisocyanatoethane Chemical compound O=C=NCCN=C=O.c1ccccc1 KPTLPIAOSCGETM-UHFFFAOYSA-N 0.000 claims description 2
- ZWWZGWFNRITNNP-UHFFFAOYSA-N carbonic acid;ethene Chemical group C=C.OC(O)=O ZWWZGWFNRITNNP-UHFFFAOYSA-N 0.000 claims description 2
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 2
- 150000001991 dicarboxylic acids Chemical class 0.000 claims description 2
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims description 2
- 229940043237 diethanolamine Drugs 0.000 claims description 2
- HPNMFZURTQLUMO-UHFFFAOYSA-N diethylamine Chemical compound CCNCC HPNMFZURTQLUMO-UHFFFAOYSA-N 0.000 claims description 2
- 229940028356 diethylene glycol monobutyl ether Drugs 0.000 claims description 2
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 235000019253 formic acid Nutrition 0.000 claims description 2
- 150000002431 hydrogen Chemical class 0.000 claims description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 2
- 150000002460 imidazoles Chemical class 0.000 claims description 2
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 claims description 2
- XLSZMDLNRCVEIJ-UHFFFAOYSA-N methylimidazole Natural products CC1=CNC=N1 XLSZMDLNRCVEIJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000000178 monomer Substances 0.000 claims description 2
- JCGNDDUYTRNOFT-UHFFFAOYSA-N oxolane-2,4-dione Chemical compound O=C1COC(=O)C1 JCGNDDUYTRNOFT-UHFFFAOYSA-N 0.000 claims description 2
- 229920005906 polyester polyol Polymers 0.000 claims description 2
- PXQLVRUNWNTZOS-UHFFFAOYSA-N sulfanyl Chemical class [SH] PXQLVRUNWNTZOS-UHFFFAOYSA-N 0.000 claims description 2
- RIOQSEWOXXDEQQ-UHFFFAOYSA-N triphenylphosphine Chemical compound C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 RIOQSEWOXXDEQQ-UHFFFAOYSA-N 0.000 claims description 2
- 150000007524 organic acids Chemical class 0.000 claims 2
- 241001614291 Anoplistes Species 0.000 claims 1
- 238000004321 preservation Methods 0.000 claims 1
- 238000005260 corrosion Methods 0.000 abstract description 12
- 230000007797 corrosion Effects 0.000 abstract description 11
- 239000003973 paint Substances 0.000 abstract description 11
- 239000000945 filler Substances 0.000 abstract description 2
- 239000011248 coating agent Substances 0.000 description 17
- 238000000576 coating method Methods 0.000 description 17
- 239000002585 base Substances 0.000 description 16
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 10
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 description 10
- 229940043265 methyl isobutyl ketone Drugs 0.000 description 10
- 239000007787 solid Substances 0.000 description 10
- 239000006210 lotion Substances 0.000 description 7
- 239000002002 slurry Substances 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 6
- 238000002156 mixing Methods 0.000 description 5
- 230000001376 precipitating effect Effects 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 239000006185 dispersion Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 3
- 229940049676 bismuth hydroxide Drugs 0.000 description 3
- TZSXPYWRDWEXHG-UHFFFAOYSA-K bismuth;trihydroxide Chemical compound [OH-].[OH-].[OH-].[Bi+3] TZSXPYWRDWEXHG-UHFFFAOYSA-K 0.000 description 3
- 150000001768 cations Chemical class 0.000 description 3
- 239000008367 deionised water Substances 0.000 description 3
- 229910021641 deionized water Inorganic materials 0.000 description 3
- LQRUPWUPINJLMU-UHFFFAOYSA-N dioctyl(oxo)tin Chemical compound CCCCCCCC[Sn](=O)CCCCCCCC LQRUPWUPINJLMU-UHFFFAOYSA-N 0.000 description 3
- 238000004070 electrodeposition Methods 0.000 description 3
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 3
- BWDBEAQIHAEVLV-UHFFFAOYSA-N 6-methylheptan-1-ol Chemical compound CC(C)CCCCCO BWDBEAQIHAEVLV-UHFFFAOYSA-N 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 2
- 235000012211 aluminium silicate Nutrition 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- PXKLMJQFEQBVLD-UHFFFAOYSA-N bisphenol F Chemical compound C1=CC(O)=CC=C1CC1=CC=C(O)C=C1 PXKLMJQFEQBVLD-UHFFFAOYSA-N 0.000 description 2
- 229940106691 bisphenol a Drugs 0.000 description 2
- 150000001721 carbon Chemical group 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 230000001869 rapid Effects 0.000 description 2
- LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 description 2
- 229910000165 zinc phosphate Inorganic materials 0.000 description 2
- ZYUVGYBAPZYKSA-UHFFFAOYSA-N 5-(3-hydroxybutan-2-yl)-4-methylbenzene-1,3-diol Chemical compound CC(O)C(C)C1=CC(O)=CC(O)=C1C ZYUVGYBAPZYKSA-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- 239000011260 aqueous acid Substances 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- NHADDZMCASKINP-HTRCEHHLSA-N decarboxydihydrocitrinin Natural products C1=C(O)C(C)=C2[C@H](C)[C@@H](C)OCC2=C1O NHADDZMCASKINP-HTRCEHHLSA-N 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 125000006182 dimethyl benzyl group Chemical group 0.000 description 1
- XXBDWLFCJWSEKW-UHFFFAOYSA-N dimethylbenzylamine Chemical compound CN(C)CC1=CC=CC=C1 XXBDWLFCJWSEKW-UHFFFAOYSA-N 0.000 description 1
- 230000005662 electromechanics Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 125000005456 glyceride group Chemical group 0.000 description 1
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 1
- 229910052622 kaolinite Inorganic materials 0.000 description 1
- 125000000325 methylidene group Chemical group [H]C([H])=* 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000013112 stability test Methods 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/50—Amines
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/14—Polycondensates modified by chemical after-treatment
- C08G59/1433—Polycondensates modified by chemical after-treatment with organic low-molecular-weight compounds
- C08G59/1477—Polycondensates modified by chemical after-treatment with organic low-molecular-weight compounds containing nitrogen
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/62—Alcohols or phenols
-
- 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
- C09D17/00—Pigment pastes, e.g. for mixing in paints
- C09D17/004—Pigment pastes, e.g. for mixing in paints containing an inorganic pigment
- C09D17/007—Metal oxide
-
- 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
- C09D17/00—Pigment pastes, e.g. for mixing in paints
- C09D17/004—Pigment pastes, e.g. for mixing in paints containing an inorganic pigment
- C09D17/007—Metal oxide
- C09D17/008—Titanium dioxide
-
- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
- C09D5/082—Anti-corrosive paints characterised by the anti-corrosive pigment
- C09D5/084—Inorganic compounds
-
- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/44—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrophoretic applications
- C09D5/4488—Cathodic paints
- C09D5/4492—Cathodic paints containing special additives, e.g. grinding agents
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Health & Medical Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Molecular Biology (AREA)
- General Chemical & Material Sciences (AREA)
- Paints Or Removers (AREA)
Abstract
The present invention discloses the pigment dispersing resin for bottom surface unification cathode electrophoresis dope, including quaternary ammonium reagent and modified epoxy.The pigment dispersing resin, it is with good pigments and fillers moisture dispersibility, corrosion resistance, weatherability and flexibility, make paint film that there is good corrosion resistance and weatherability, it is remarkably improved the richness and color stability of paint film simultaneously, can satisfy requirement of the handwares such as bicycle, household electrical appliances, adornment to paint film.
Description
Technical field
The present invention relates to the technical fields of electrophoretic coating, in particular to the pigment point for bottom surface unification cathode electrophoresis dope
Dissipate resin and preparation method thereof.
Background technique
The electrophoretic coating low pollution novel as one kind saves the energy, resource-saving, the coating for acting as protection and anticorrosive property,
With smooth coating, the features such as water resistance and good chemical resistance, the mechanization and automation of coating industry easy to accomplish are suitble to shape
Shape is complicated, has edge corner angle, hole Workpiece coating, is widely used in the painting of the handwares such as automobile, automatic vehicle, electromechanics, household electrical appliances
Dress.Current anti-corrosion electrophoretic coating most on the market all only protrudes its excellent antiseptic property, and weather resistance is often very poor,
There is excellent Corrosion Protection and weather resistance then to need to carry out second of coating again on electrophoretic coating simultaneously, increase greatly
The process and cost of coating are added.
Summary of the invention
The object of the present invention is to provide for bottom surface unification cathode electrophoresis dope pigment dispersing resin and preparation method thereof,
It solves one or more of the above-mentioned prior art problem.
Provided by the present invention for the pigment dispersing resin of bottom surface unification cathode electrophoresis dope, including quaternary ammonium reagent and change
Property epoxy resin.
In some embodiment party, the preparation method of quaternary ammonium reagent the following steps are included:
It is reacted at 50-150 DEG C by carbonic acid ethylene oxidic ester with secondary amine, after epoxy group all disappears, addition has
Machine aqueous acid, quaternary ammonium reagent is prepared in reaction at 70-80 DEG C.
In some embodiment party, tertiary carbonic acid glycidyl ester is generated by versatic acid and epichlorohydrin reaction, contains ten
The highly branched monomer of a above carbon atom, chemical structure are as follows:
Wherein: R1+R2 is 7 C atoms.
In some embodiment party, secondary amine is one of methylethanolamine, N- ehtylethanolamine, ketimide or a variety of；Have
Machine acid is one of formic acid, acetic acid, lactic acid, hydracrylic acid, isooctyl acid or a variety of.
In some embodiment party, the preparation method of modified epoxy the following steps are included:
By base epoxy resin and chain extender, under the effect of the catalyst, 130 DEG C of -190 DEG C of progress open loop chain extensions of temperature
It reacts, after the epoxide equivalent for reaching theory, Isocyanate prepolymers body is added, grafting reaction is carried out between 130-140 DEG C, finally
Butyl glycol ether is added, prepares modified epoxy；
Base epoxy resin is aromatic series or alicyclic compound containing 1-2 epoxy group on each molecular structure,
The epoxide equivalent of epoxy resin is between 100-600g/mol；
Chain extender is acid, alcohol or phenol with two or more active hydrogens, and the molecular weight of chain extender is between 50-4000
Between；
Catalyst is triethanolamine, triethylamine, diethanol amine, diethylamine, triphenyl phosphorus, tri-phenyl-phosphorus bromide, dimethyl
At least one of benzylamine, imidazoles, methylimidazole, 2-ethyl-4-methylimidazole；
Isocyanate prepolymers body is to be prepared by polyisocyanates with the reaction of the compound containing active hydrogen.
In some embodiment party, epoxy resin is bisphenol A type epoxy resin, bisphenol-s epoxy resin, bisphenol F type epoxy
At least one of resin.
In some embodiment party, chain extender is mono-acid, dicarboxylic acids, polyether polyol, polyester polyol, bisphenol A-type are poly-
At least one of ethoxylated polyhydric alcohol, binary mercapto alcohol, single phenol, bisphenol compound.
In some embodiment party, Isocyanate prepolymers preparation the following steps are included:
Compound containing active hydrogen, which is slowly added dropwise in polyisocyanate compound, to react, and is added dropwise to complete rear 70-110 DEG C of guarantor
Temperature reacts 1~5h, and isocyanate groups and the compound mole ratio containing active hydrogen are 1:0.45~1 in Isocyanate prepolymers body:
0.65；
Polyisocyanates includes but is not limited to aliphatic diisocyanate, alicyclic diisocyanate, two isocyanide of aromatic series
At least one of acid esters；
Compound containing active hydrogen is at least one of alcohol containing 1-20 carbon atom, alcohol ether, phenol, carboxylic acid.
In some embodiment party, polyisocyanates is toluene di-isocyanate(TDI), '-diphenylmethane diisocyanate ester, more methylenes
Quito phenylene diisocyanate, hexamethylene diisocyanate, benzene dimethylene diisocyanate, isophorone diisocyanate,
At least one of trimethyl hexamethylene diisocyanate；
Compound containing active hydrogen is methanol, ethyl alcohol, isopropanol, phenol, ethylene glycol monobutyl ether, ethylene glycol ethyl ether, second two
At least one of alcohol hexyl ether, diethylene glycol monobutyl ether, diethylene glycol ether.
The preparation method of pigment dispersing resin for bottom surface unification cathode electrophoresis dope, comprising the following steps:
In the reaction flask equipped with thermometer, blender and reflux condensing tube, modified epoxy, quaternary ammoniated is sequentially added
After reagent, the charging of first time pure water, stirring is opened by reaction system and is warming up to 90 DEG C of insulation reaction 6h, surveys resinous acid value, when
When resinous acid value is less than 1, second of pure water is added, is cooled to 65 DEG C of insulation reaction 1h, finally prepares the solid season containing for 40%
Amine salt type pigment dispersing resin.
Beneficial effect:
The pigment dispersing resin for being suitable for bottom surface unification cathode electrophoresis dope of the embodiment of the present invention, with good face
Filler moisture dispersibility, corrosion resistance, weatherability and flexibility make paint film have good corrosion resistance and weatherability, simultaneously
It is remarkably improved the richness and color stability of paint film, can satisfy the handwares such as bicycle, household electrical appliances, adornment to paint
The requirement of film.
Specific embodiment
The present invention is described in more detail below by embodiment.
Case study on implementation 1:
Step 1: preparing quaternary ammonium reagent
In the reaction flask equipped with thermometer, blender and reflux condensing tube, the versatic acid for sequentially adding formula ratio shrinks
Glyceride, methylethanolamine, which open stirring and reaction system heat up 130 DEG C, extremely reacts 1h, after epoxy group all disappears, then will drop
Temperature is warming up to 80 DEG C of reaction 2h to 70 DEG C of 50% lactic acid aqueous solutions of addition, tests MEQA and MEQB value, finally prepares solid containing being
80% quaternary ammonium reagent.
Specific additional amount is shown in Table 1:
| Component | Dosage (g) |
| Tertiary carbonic acid glycidyl ester | 480 |
| Methylethanolamine | 180 |
| 50% lactic acid (aqueous solution) | 453.6 |
| Total amount | 1113.6 |
Table 1: the dosage of quaternary ammonium reagent raw material
Step 2: preparing Isocyanate prepolymers body
In the reaction flask equipped with thermometer, blender and reflux condensing tube, the toluene diisocyanate of formula ratio is sequentially added
Acid esters, methyl iso-butyl ketone (MIBK).Stirring being opened in nitrogen atmosphere, temperature of reaction system being risen to 45-50 DEG C, isooctanol is slowly dripped
It is added in the reaction system of toluene di-isocyanate(TDI), methyl iso-butyl ketone (MIBK), temperature of reaction system is between 50-55 DEG C when dropwise addition, about
4-5h is dripped off, and after being all added dropwise to complete, is warming up to 75 DEG C of insulation reaction 1h, is surveyed isocyanate group content, nco value 120-125mg/
It is qualified when g, obtain the solid Isocyanate prepolymers body containing for 94%.
Specific additional amount is shown in Table 2:
| Component | Dosage (g) |
| Toluene di-isocyanate(TDI) (NCO=480) | 382.72 |
| Methyl iso-butyl ketone (MIBK) | 44 |
| Isooctanol | 322.77 |
| Total amount | 749.49 |
Table 2: the dosage of Isocyanate prepolymers body raw material
Step 3: preparing modified epoxy
In the reaction flask equipped with thermometer, blender and reflux condensing tube, the epoxy resin, double of formula ratio is sequentially added
Phenol A, anacardol, methyl iso-butyl ketone (MIBK) after charging, are opened after reaction system is warming up to 100 DEG C by stirring and dimethylbenzyl are added
Amine catalyst, first heat up 180-190 DEG C of extremely reaction 20min after adding, then will be cooled to 140-150 DEG C of reaction 2h, when system ring
After oxygen equivalent reaches 800-900, it is initially added into the Isocyanate prepolymers body of second step preparation, adds 130-140 DEG C of reaction 2h, instead
After answering, butyl glycol ether is added and is cooled to 90 DEG C, disperses 20min, obtains final resin and contain modification ring for 90% admittedly
Oxygen resin.
Specific additional amount is shown in Table 3:
| Component | Dosage (g) |
| Base epoxy resin (EEW=180-190) | 2180 |
| Bisphenol-A | 600 |
| Anacardol | 156.2 |
| Methyl iso-butyl ketone (MIBK) | 100 |
| Dimethyl benzylamine | 3 |
| Isocyanate prepolymers body * | 700 |
| Ethylene glycol monobutyl ether | 189.4 |
| It is total | 3928.6 |
* Isocyanate prepolymers body: nco value 120-125mg/g
Table 3: the dosage of modified epoxy raw material
Step 4: the preparation of pigment dispersing resin:
In the reaction flask equipped with thermometer, blender and reflux condensing tube, the third step preparation of formula ratio is sequentially added
Modified epoxy, the quaternary ammonium reagent of first step preparation, after pure water charging, open stirring and reaction system be warming up to 90
DEG C insulation reaction 6h surveys resinous acid value, when resinous acid value is less than 1, second of pure water is added, is cooled to 65 DEG C of insulation reactions
1h finally prepares the solid quaternary amine salt form pigment dispersing resin containing for 40%.Specific additional amount is shown in Table 4:
| Component | Dosage (g) |
| Modified epoxy | 1522.3 |
| Quaternary ammonium reagent | 499.8 |
| First time pure water | 400 |
| Second of pure water | 2002.67 |
| It is total | 4424.77 |
Table 4: the dosage of pigment dispersing resin raw material
Prepare cathode electrophoresis dope mill base:
Red slurry A: as a comparison case using conventional pigment dispersion resin
It is above-mentioned admittedly containing 40% conventional pigment dispersion resin, 1450g titanium oxide, 700g kaolin, 30g oxidation that 830g is added
15h is sanded with ball mill after mixing in iron oxide red, 100g dioctyltin oxide, 100g bismuth hydroxide and 200g deionized water
Afterwards, the mill base material that solid content is 50% is obtained.
Red slurry B: the pigment dispersing resin prepared using embodiment 1
The pigment dispersing resin containing 40%, 1450g titanium oxide, 700g kaolinite admittedly prepared by 830g above-described embodiment 1 is added
Soil, 30g iron oxide red, 100g dioctyltin oxide, 100g bismuth hydroxide and 200g deionized water, use ball milling after mixing
After 15h is sanded in machine, the mill base material that solid content is 50% is obtained.
Red slurry C: add ultraviolet absorber as a comparison case using conventional pigment dispersion resin
Be added 830g it is above-mentioned admittedly containing 40% conventional pigment dispersion resin, 50g UV absorbers, 1400g titanium oxide,
700g kaolin, 30g iron oxide red, 100g dioctyltin oxide, 100g bismuth hydroxide and 200g deionized water are uniformly mixed
After 15h is sanded with ball mill afterwards, the mill base material that solid content is 50% is obtained.
Cation electrodeposition coating is prepared respectively using above-mentioned red slurry A, B and C:
Bottom surface unification cathode electrophoresis dope lotion (HR-4000 type lotion) of 1000g, 500g red slurry A, 2500g are gone
Ionized water mixing, preparation is solid to unify cathode electrophoresis dope A containing the bottom surface for being 15%；
Bottom surface unification cathode electrophoresis dope lotion (HR-4000 type lotion) of 1000g, 500g red slurry B, 2500g are gone
Ionized water mixing, preparation is solid to unify cathode electrophoresis dope B containing the bottom surface for being 15%；
Bottom surface unification cathode electrophoresis dope lotion (HR-4000 type lotion) of 1000g, 500g red slurry C, 2500g are gone
Ionized water mixing, preparation is solid to unify cathode electrophoresis dope C containing the bottom surface for being 15%.
Wherein, HR-4000 type lotion is purchased from Hao Lisen coating (Shanghai) Co., Ltd..
Test method and judgment criteria:
One, mill base high-temperature stability
It takes mill base 500g to be sealed in special test bottle, is put into progress high-temperature stability test in 50 DEG C of baking ovens, each difference
Mill base is investigated after test 10 days, and whether there is or not precipitating and fineness variations.
●: after placing 10 days, mill base is without hard precipitating, and fineness is without anti-thick；
◎: after placing 10 days, without hard precipitating, fineness has anti-slightly but still in acceptability limit mill base；
△: after placing 10 days, without hard precipitating, fineness has anti-thick and unqualified mill base；
: after placing 10 days, mill base has precipitating, and fineness has anti-thick and unqualified.
Two, corrosion resistance
By cold-reduced sheet (0.8mm*150mm*70mm) by chemical conversion treatment (the rapids smart corporation of Japanese pa card, trade name,
Zinc phosphate treatment agent), as to coated article, the cation electrodeposition coating obtained with embodiment carries out coating to it, applies
For paint film in 165 DEG C of baking 20min, film thickness monitoring tests 700h salt spray test at 18-22 microns, according to national standard NSS after dress, comments
The partly foamed number of valence cutting-up and expansion erosion width.
●: side is not more than 2.0mm from cutting-up part, cutting-up part nearby without blistering,
◎: side is not more than 2.0mm from cutting-up part, and nearby there be 1-2 blistering in cutting-up part,
△: side is greater than 2.0mm but is less than 3.0mm from cutting-up part, and nearby there be 1-2 blistering in cutting-up part,
: side is greater than 2.0mm but is less than 3.0mm from cutting-up part, and nearby there be 2-5 blistering in cutting-up part
Three, weatherability
By cold-reduced sheet (0.8mm*150mm*70mm) by chemical conversion treatment (the rapids smart corporation of Japanese pa card, trade name,
Zinc phosphate treatment agent), as to coated article, the cation electrodeposition coating obtained with embodiment carries out coating to it, applies
For paint film in 165 DEG C of baking 20min, film thickness monitoring tests 500h at 18-22 microns, according to national standard QUV A after dress, evaluates paint film
Value of chromatism.
●: value of chromatism is less than 2
◎: value of chromatism is greater than 2 but less than 4
△: value of chromatism is greater than 4 less than 6
: value of chromatism is greater than 6
The test data of the bottom surface unification stability of cathode electrophoresis dope A, B, C, corrosion resistance and weatherability is shown in Table 5.
Table 5: experimental data
As can be known from the above table, bottom surface unification cathode electrophoresis dope B is compared with cathode electrophoresis dope A is unified in bottom surface, bottom surface unification
The stability of cathode electrophoresis dope B unifies cathode electrophoresis dope A better than bottom surface, and the corrosion-resistant of cathode electrophoresis dope B is unified in bottom surface
Property with bottom surface unification cathode electrophoresis dope A it is suitable, bottom surface unify cathode electrophoresis dope B it is weather-proof better than bottom surface unify ability cathode electrophoresis
Coating A；Cathode electrophoresis dope B is unified compared with cathode electrophoresis dope C is unified in bottom surface in bottom surface, and cathode electrophoresis dope B is unified in bottom surface
Stability be substantially better than bottom surface unification cathode electrophoresis dope C, bottom surface unify cathode electrophoresis dope B corrosion resistance and bottom surface close
One cathode electrophoresis dope C is suitable, and it is suitable that the weather-proof and bottom surface unification cathode electrophoresis dope C of cathode electrophoresis dope B is unified in bottom surface.
Therefore, be added embodiment 1 prepare admittedly containing 40% pigment dispersing resin after, bottom surface unify cathode electrophoresis dope B
Stability of pigment paste and weatherability with use conventional disperse resin bottom surface unify cathode electrophoresis dope A compared to obtained significantly
It improves；Cathode electrophoresis dope C is unified in bottom surface, after UV absorbers are added, although weatherability can be improved, will cause mill base
Stability sharp fall.
Pigment dispersing resin in embodiment provided by the invention has good wetting and dispersing performance to inorganic color stuffing,
And the tertiary carbon acid groups contained provide resin excellent weather resistance, resistance to acid and alkali and water resistance, the modified epoxy contained
Provide the excellent corrosion resistance of resin.The mill base prepared with this resin both can provide the good corrosion resistance of paint film and resistance to
Hou Xing, while being remarkably improved the richness and color stability of paint film.
The above statement is only preferred embodiment of the invention, it is noted that those skilled in the art, not
Under the premise of being detached from the invention design, various modifications and improvements can be made, these also should be regarded as the protection model of invention
Within enclosing.
Claims (10)
1. the pigment dispersing resin for bottom surface unification cathode electrophoresis dope, which is characterized in that including quaternary ammonium reagent and modification
Epoxy resin.
2. the pigment dispersing resin according to claim 1 for bottom surface unification cathode electrophoresis dope, which is characterized in that institute
State the preparation method of quaternary ammonium reagent the following steps are included:
It is reacted at 50-150 DEG C by carbonic acid ethylene oxidic ester with secondary amine, after epoxy group all disappears, organic acid is added
Aqueous solution, quaternary ammonium reagent is prepared in reaction at 70-80 DEG C.
3. the pigment dispersing resin according to claim 2 for bottom surface unification cathode electrophoresis dope, which is characterized in that institute
Stating tertiary carbonic acid glycidyl ester is generated by versatic acid and epichlorohydrin reaction, highly branched containing ten or more carbon atoms
Monomer, chemical structure are as follows:
Wherein: R1+R2 is 7 C atoms.
4. the pigment dispersing resin according to claim 2 for bottom surface unification cathode electrophoresis dope, which is characterized in that institute
Stating secondary amine is one of methylethanolamine, N- ehtylethanolamine, ketimide or a variety of；Organic acid be formic acid, acetic acid, lactic acid,
One of hydracrylic acid, isooctyl acid are a variety of.
5. the pigment dispersing resin according to claim 1 for bottom surface unification cathode electrophoresis dope, which is characterized in that institute
State the preparation method of modified epoxy the following steps are included:
By base epoxy resin and chain extender, under the effect of the catalyst, 130 DEG C of -190 DEG C of progress open loop chain extensions of temperature are anti-
Answer, after reaching theoretical epoxide equivalent, Isocyanate prepolymers body be added, grafting reaction is carried out between 130-140 DEG C, finally plus
Enter butyl glycol ether, prepares modified epoxy；
The base epoxy resin is aromatic series or alicyclic compound containing 1-2 epoxy group on each molecular structure,
The epoxide equivalent of the epoxy resin is between 100-600g/mol；
The chain extender is acid, alcohol or phenol with two or more active hydrogens, and the molecular weight of the chain extender is between 50-
Between 4000；
The catalyst is triethanolamine, triethylamine, diethanol amine, diethylamine, triphenyl phosphorus, tri-phenyl-phosphorus bromide, dimethyl
At least one of benzylamine, imidazoles, methylimidazole, 2-ethyl-4-methylimidazole；
The Isocyanate prepolymers body is to be prepared by polyisocyanates with the reaction of the compound containing active hydrogen.
6. the pigment dispersing resin according to claim 5 for bottom surface unification cathode electrophoresis dope, which is characterized in that institute
State at least one that epoxy resin is bisphenol A type epoxy resin, bisphenol-s epoxy resin, bisphenol f type epoxy resin.
7. the pigment dispersing resin according to claim 5 for bottom surface unification cathode electrophoresis dope, which is characterized in that institute
Stating chain extender is mono-acid, dicarboxylic acids, polyether polyol, polyester polyol, bisphenol A-type polyether polyol, binary mercapto alcohol, list
At least one of phenol, bisphenol compound.
8. the pigment dispersing resin according to claim 5 for bottom surface unification cathode electrophoresis dope, which is characterized in that institute
State Isocyanate prepolymers preparation the following steps are included:
Compound containing active hydrogen, which is slowly added dropwise in polyisocyanate compound, to react, and it is anti-to be added dropwise to complete rear 70-110 DEG C of heat preservation
1~5h is answered, isocyanate groups and the compound mole ratio containing active hydrogen are 1:0.45~1:0.65 in Isocyanate prepolymers body；
The polyisocyanates includes but is not limited to aliphatic diisocyanate, alicyclic diisocyanate, two isocyanide of aromatic series
At least one of acid esters；
The compound containing active hydrogen is at least one of alcohol containing 1-20 carbon atom, alcohol ether, phenol, carboxylic acid.
9. the pigment dispersing resin according to claim 8 for bottom surface unification cathode electrophoresis dope, which is characterized in that institute
Stating polyisocyanates is toluene di-isocyanate(TDI), '-diphenylmethane diisocyanate ester, the more phenylene diisocyanates of polymethylene, six Asias
Methyl diisocyanate, benzene dimethylene diisocyanate, isophorone diisocyanate, tri-methyl hexamethylene diisocyanate
At least one of ester；
The compound containing active hydrogen is methanol, ethyl alcohol, isopropanol, phenol, ethylene glycol monobutyl ether, ethylene glycol ethyl ether, second two
At least one of alcohol hexyl ether, diethylene glycol monobutyl ether, diethylene glycol ether.
10. the preparation method of the pigment dispersing resin for bottom surface unification cathode electrophoresis dope, which is characterized in that including following step
It is rapid: in the reaction flask equipped with thermometer, blender and reflux condensing tube, any claim institute in claim 1 to 9 is added
The pigment dispersing resin and pure water for bottom surface unification cathode electrophoresis dope stated, after charging, opening blender will react
Bottle is warming up to 90 DEG C of insulation reaction 6h, surveys resinous acid value and pure water is added again when resinous acid value is less than 1, be cooled to 65 DEG C of guarantors
Temperature reaction 1h, finally prepares the pigment dispersing resin.
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| CN110358412A (en) * | 2019-08-21 | 2019-10-22 | 浩力森化学科技（江苏）有限公司 | Oily cathode electrophoresis dope of a kind of contracting and preparation method thereof |
| CN111269619A (en) * | 2020-03-16 | 2020-06-12 | 立邦涂料（中国）有限公司 | Cathode electrophoretic paint color paste and preparation method thereof |
| CN114350225A (en) * | 2021-12-25 | 2022-04-15 | 天津市新丽华色材有限责任公司 | Microgel for cathode electrophoretic coating and preparation method thereof |
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| CN109111563B (en) | 2021-06-15 |
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