CN117417677A - Water-based moisture-cured cold zinc acid and alkali resistant anticorrosive paint and application thereof - Google Patents
Water-based moisture-cured cold zinc acid and alkali resistant anticorrosive paint and application thereof Download PDFInfo
- Publication number
- CN117417677A CN117417677A CN202311587518.5A CN202311587518A CN117417677A CN 117417677 A CN117417677 A CN 117417677A CN 202311587518 A CN202311587518 A CN 202311587518A CN 117417677 A CN117417677 A CN 117417677A
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- Prior art keywords
- acid
- percent
- parts
- acrylic
- water
- Prior art date
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 142
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title claims abstract description 135
- 239000002253 acid Substances 0.000 title claims abstract description 123
- 229910052725 zinc Inorganic materials 0.000 title claims abstract description 115
- 239000011701 zinc Substances 0.000 title claims abstract description 115
- 239000003513 alkali Substances 0.000 title claims abstract description 85
- 239000003973 paint Substances 0.000 title claims description 89
- 239000000839 emulsion Substances 0.000 claims abstract description 144
- 239000003822 epoxy resin Substances 0.000 claims abstract description 104
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 104
- -1 carboxylic acid vanillyl alcohol ester Chemical class 0.000 claims abstract description 79
- 238000005260 corrosion Methods 0.000 claims abstract description 64
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 58
- 229920000178 Acrylic resin Polymers 0.000 claims abstract description 58
- 239000007788 liquid Substances 0.000 claims abstract description 47
- 238000000576 coating method Methods 0.000 claims abstract description 46
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 44
- 239000011248 coating agent Substances 0.000 claims abstract description 42
- 239000011256 inorganic filler Substances 0.000 claims abstract description 18
- 229910003475 inorganic filler Inorganic materials 0.000 claims abstract description 18
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 16
- ZENOXNGFMSCLLL-UHFFFAOYSA-N vanillyl alcohol Natural products COC1=CC(CO)=CC=C1O ZENOXNGFMSCLLL-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052751 metal Inorganic materials 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims abstract description 10
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims abstract description 5
- 239000000178 monomer Substances 0.000 claims description 95
- 239000000243 solution Substances 0.000 claims description 81
- 239000002994 raw material Substances 0.000 claims description 73
- 239000003995 emulsifying agent Substances 0.000 claims description 69
- 239000007853 buffer solution Substances 0.000 claims description 65
- 238000002156 mixing Methods 0.000 claims description 63
- 239000003999 initiator Substances 0.000 claims description 59
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 51
- 125000003055 glycidyl group Chemical group C(C1CO1)* 0.000 claims description 35
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 34
- 239000007864 aqueous solution Substances 0.000 claims description 34
- 239000003054 catalyst Substances 0.000 claims description 34
- 238000002360 preparation method Methods 0.000 claims description 33
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 30
- 238000006116 polymerization reaction Methods 0.000 claims description 28
- 238000005303 weighing Methods 0.000 claims description 28
- 239000000843 powder Substances 0.000 claims description 26
- 230000007797 corrosion Effects 0.000 claims description 24
- 239000002270 dispersing agent Substances 0.000 claims description 24
- MTEZSDOQASFMDI-UHFFFAOYSA-N 1-trimethoxysilylpropan-1-ol Chemical compound CCC(O)[Si](OC)(OC)OC MTEZSDOQASFMDI-UHFFFAOYSA-N 0.000 claims description 23
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 21
- 239000000194 fatty acid Substances 0.000 claims description 21
- 229930195729 fatty acid Natural products 0.000 claims description 21
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 20
- 238000006243 chemical reaction Methods 0.000 claims description 20
- 239000004593 Epoxy Substances 0.000 claims description 19
- 239000010439 graphite Substances 0.000 claims description 19
- 229910002804 graphite Inorganic materials 0.000 claims description 19
- 150000002148 esters Chemical class 0.000 claims description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 17
- 239000005058 Isophorone diisocyanate Substances 0.000 claims description 17
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 17
- 238000005886 esterification reaction Methods 0.000 claims description 17
- 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 17
- 239000004170 rice bran wax Substances 0.000 claims description 17
- 235000019384 rice bran wax Nutrition 0.000 claims description 17
- 239000002562 thickening agent Substances 0.000 claims description 17
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 16
- 125000003545 alkoxy group Chemical group 0.000 claims description 16
- 239000003795 chemical substances by application Substances 0.000 claims description 16
- 229910000077 silane Inorganic materials 0.000 claims description 16
- 239000000725 suspension Substances 0.000 claims description 16
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 16
- 229920002554 vinyl polymer Polymers 0.000 claims description 16
- 239000000080 wetting agent Substances 0.000 claims description 16
- BBLRVFUTKVICCR-UHFFFAOYSA-N 3-methylhept-2-enoic acid Chemical compound CCCCC(C)=CC(O)=O BBLRVFUTKVICCR-UHFFFAOYSA-N 0.000 claims description 15
- CNCOEDDPFOAUMB-UHFFFAOYSA-N N-Methylolacrylamide Chemical compound OCNC(=O)C=C CNCOEDDPFOAUMB-UHFFFAOYSA-N 0.000 claims description 15
- HFACYLZERDEVSX-UHFFFAOYSA-N benzidine Chemical compound C1=CC(N)=CC=C1C1=CC=C(N)C=C1 HFACYLZERDEVSX-UHFFFAOYSA-N 0.000 claims description 15
- DMSMPAJRVJJAGA-UHFFFAOYSA-N benzo[d]isothiazol-3-one Chemical compound C1=CC=C2C(=O)NSC2=C1 DMSMPAJRVJJAGA-UHFFFAOYSA-N 0.000 claims description 15
- ATGUVEKSASEFFO-UHFFFAOYSA-N p-aminodiphenylamine Chemical compound C1=CC(N)=CC=C1NC1=CC=CC=C1 ATGUVEKSASEFFO-UHFFFAOYSA-N 0.000 claims description 15
- OYHQOLUKZRVURQ-NTGFUMLPSA-N (9Z,12Z)-9,10,12,13-tetratritiooctadeca-9,12-dienoic acid Chemical compound C(CCCCCCC\C(=C(/C\C(=C(/CCCCC)\[3H])\[3H])\[3H])\[3H])(=O)O OYHQOLUKZRVURQ-NTGFUMLPSA-N 0.000 claims description 14
- 239000002274 desiccant Substances 0.000 claims description 14
- 238000005406 washing Methods 0.000 claims description 14
- 239000004952 Polyamide Substances 0.000 claims description 13
- 239000002518 antifoaming agent Substances 0.000 claims description 13
- 238000001035 drying Methods 0.000 claims description 13
- 229920002647 polyamide Polymers 0.000 claims description 13
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 13
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 13
- 239000010453 quartz Substances 0.000 claims description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 13
- 239000001993 wax Substances 0.000 claims description 13
- 229920001577 copolymer Polymers 0.000 claims description 12
- QGESYWUUNZQXCR-UHFFFAOYSA-M sodium 3-hydroxypropane-1-sulfonate 2-methylprop-2-enoic acid Chemical compound [Na+].OCCCS(=O)(=O)[O-].C(C(=C)C)(=O)O QGESYWUUNZQXCR-UHFFFAOYSA-M 0.000 claims description 11
- PXKLMJQFEQBVLD-UHFFFAOYSA-N bisphenol F Chemical compound C1=CC(O)=CC=C1CC1=CC=C(O)C=C1 PXKLMJQFEQBVLD-UHFFFAOYSA-N 0.000 claims description 10
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 8
- 241000196324 Embryophyta Species 0.000 claims description 8
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 8
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000004321 preservation Methods 0.000 claims description 8
- 230000008719 thickening Effects 0.000 claims description 8
- 235000013311 vegetables Nutrition 0.000 claims description 8
- ALSTYHKOOCGGFT-KTKRTIGZSA-N (9Z)-octadecen-1-ol Chemical compound CCCCCCCC\C=C/CCCCCCCCO ALSTYHKOOCGGFT-KTKRTIGZSA-N 0.000 claims description 7
- 239000004132 Calcium polyphosphate Substances 0.000 claims description 7
- 235000019827 calcium polyphosphate Nutrition 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 7
- 229940055577 oleyl alcohol Drugs 0.000 claims description 7
- XMLQWXUVTXCDDL-UHFFFAOYSA-N oleyl alcohol Natural products CCCCCCC=CCCCCCCCCCCO XMLQWXUVTXCDDL-UHFFFAOYSA-N 0.000 claims description 7
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 6
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 claims description 5
- 239000002202 Polyethylene glycol Substances 0.000 claims description 5
- 239000003456 ion exchange resin Substances 0.000 claims description 5
- 229920003303 ion-exchange polymer Polymers 0.000 claims description 5
- 229920001223 polyethylene glycol Polymers 0.000 claims description 5
- SONHXMAHPHADTF-UHFFFAOYSA-M sodium;2-methylprop-2-enoate Chemical compound [Na+].CC(=C)C([O-])=O SONHXMAHPHADTF-UHFFFAOYSA-M 0.000 claims description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 4
- VQEONGKQWIFHMN-UHFFFAOYSA-N Nordihydrocapsaicin Chemical compound COC1=CC(CNC(=O)CCCCCC(C)C)=CC=C1O VQEONGKQWIFHMN-UHFFFAOYSA-N 0.000 claims description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 4
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 4
- YKPUWZUDDOIDPM-SOFGYWHQSA-N capsaicin Chemical compound COC1=CC(CNC(=O)CCCC\C=C\C(C)C)=CC=C1O YKPUWZUDDOIDPM-SOFGYWHQSA-N 0.000 claims description 4
- BXWNKGSJHAJOGX-UHFFFAOYSA-N hexadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCO BXWNKGSJHAJOGX-UHFFFAOYSA-N 0.000 claims description 4
- WWZKQHOCKIZLMA-UHFFFAOYSA-N octanoic acid Chemical compound CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 claims description 4
- 229920001451 polypropylene glycol Polymers 0.000 claims description 4
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 4
- BWJUFXUULUEGMA-UHFFFAOYSA-N propan-2-yl propan-2-yloxycarbonyloxy carbonate Chemical compound CC(C)OC(=O)OOC(=O)OC(C)C BWJUFXUULUEGMA-UHFFFAOYSA-N 0.000 claims description 4
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 claims description 4
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 3
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- HHQAGBQXOWLTLL-UHFFFAOYSA-N (2-hydroxy-3-phenoxypropyl) prop-2-enoate Chemical compound C=CC(=O)OCC(O)COC1=CC=CC=C1 HHQAGBQXOWLTLL-UHFFFAOYSA-N 0.000 claims description 2
- 239000001373 (E)-2-methylpent-2-enoic acid Substances 0.000 claims description 2
- ZORQXIQZAOLNGE-UHFFFAOYSA-N 1,1-difluorocyclohexane Chemical compound FC1(F)CCCCC1 ZORQXIQZAOLNGE-UHFFFAOYSA-N 0.000 claims description 2
- OUPZKGBUJRBPGC-UHFFFAOYSA-N 1,3,5-tris(oxiran-2-ylmethyl)-1,3,5-triazinane-2,4,6-trione Chemical compound O=C1N(CC2OC2)C(=O)N(CC2OC2)C(=O)N1CC1CO1 OUPZKGBUJRBPGC-UHFFFAOYSA-N 0.000 claims description 2
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 claims description 2
- JJYWRQLLQAKNAD-UHFFFAOYSA-N 2-Methyl-2-pentenoic acid Natural products CCC=C(C)C(O)=O JJYWRQLLQAKNAD-UHFFFAOYSA-N 0.000 claims description 2
- AOBIOSPNXBMOAT-UHFFFAOYSA-N 2-[2-(oxiran-2-ylmethoxy)ethoxymethyl]oxirane Chemical compound C1OC1COCCOCC1CO1 AOBIOSPNXBMOAT-UHFFFAOYSA-N 0.000 claims description 2
- QLIBJPGWWSHWBF-UHFFFAOYSA-N 2-aminoethyl methacrylate Chemical compound CC(=C)C(=O)OCCN QLIBJPGWWSHWBF-UHFFFAOYSA-N 0.000 claims description 2
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 claims description 2
- HFCUBKYHMMPGBY-UHFFFAOYSA-N 2-methoxyethyl prop-2-enoate Chemical compound COCCOC(=O)C=C HFCUBKYHMMPGBY-UHFFFAOYSA-N 0.000 claims description 2
- JJYWRQLLQAKNAD-PLNGDYQASA-N 2-methyl-2-pentenoic acid Chemical compound CC\C=C(\C)C(O)=O JJYWRQLLQAKNAD-PLNGDYQASA-N 0.000 claims description 2
- MMTXSCWTVRMIIY-UHFFFAOYSA-N 3,5-dihydroxyhept-6-enoic acid Chemical compound OC(=O)CC(O)CC(O)C=C MMTXSCWTVRMIIY-UHFFFAOYSA-N 0.000 claims description 2
- QZPSOSOOLFHYRR-UHFFFAOYSA-N 3-hydroxypropyl prop-2-enoate Chemical compound OCCCOC(=O)C=C QZPSOSOOLFHYRR-UHFFFAOYSA-N 0.000 claims description 2
- DBCAQXHNJOFNGC-UHFFFAOYSA-N 4-bromo-1,1,1-trifluorobutane Chemical compound FC(F)(F)CCCBr DBCAQXHNJOFNGC-UHFFFAOYSA-N 0.000 claims description 2
- BWDBEAQIHAEVLV-UHFFFAOYSA-N 6-methylheptan-1-ol Chemical compound CC(C)CCCCCO BWDBEAQIHAEVLV-UHFFFAOYSA-N 0.000 claims description 2
- 239000004342 Benzoyl peroxide Substances 0.000 claims description 2
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 claims description 2
- KZMGYPLQYOPHEL-UHFFFAOYSA-N Boron trifluoride etherate Chemical compound FB(F)F.CCOCC KZMGYPLQYOPHEL-UHFFFAOYSA-N 0.000 claims description 2
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 claims description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 claims description 2
- KWYHDKDOAIKMQN-UHFFFAOYSA-N N,N,N',N'-tetramethylethylenediamine Chemical compound CN(C)CCN(C)C KWYHDKDOAIKMQN-UHFFFAOYSA-N 0.000 claims description 2
- IGFHQQFPSIBGKE-UHFFFAOYSA-N Nonylphenol Natural products CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 claims description 2
- IAXXETNIOYFMLW-COPLHBTASA-N [(1s,3s,4s)-4,7,7-trimethyl-3-bicyclo[2.2.1]heptanyl] 2-methylprop-2-enoate Chemical compound C1C[C@]2(C)[C@@H](OC(=O)C(=C)C)C[C@H]1C2(C)C IAXXETNIOYFMLW-COPLHBTASA-N 0.000 claims description 2
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 claims description 2
- LVZGQWKTUCVPBQ-UHFFFAOYSA-N acetic acid;trifluoroborane Chemical compound CC(O)=O.FB(F)F LVZGQWKTUCVPBQ-UHFFFAOYSA-N 0.000 claims description 2
- OBETXYAYXDNJHR-UHFFFAOYSA-N alpha-ethylcaproic acid Natural products CCCCC(CC)C(O)=O OBETXYAYXDNJHR-UHFFFAOYSA-N 0.000 claims description 2
- KKTCWAXMXADOBB-UHFFFAOYSA-N azanium;hydrogen carbonate;hydrate Chemical compound [NH4+].O.OC([O-])=O KKTCWAXMXADOBB-UHFFFAOYSA-N 0.000 claims description 2
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 2
- 229960002504 capsaicin Drugs 0.000 claims description 2
- 235000017663 capsaicin Nutrition 0.000 claims description 2
- 239000004359 castor oil Substances 0.000 claims description 2
- 235000019438 castor oil Nutrition 0.000 claims description 2
- 229960000541 cetyl alcohol Drugs 0.000 claims description 2
- 239000003240 coconut oil Substances 0.000 claims description 2
- 235000019864 coconut oil Nutrition 0.000 claims description 2
- 239000012975 dibutyltin dilaurate Substances 0.000 claims description 2
- RBCYRZPENADQGZ-UHFFFAOYSA-N dihydrocapsaicin Natural products COC1=CC(COC(=O)CCCCCCC(C)C)=CC=C1O RBCYRZPENADQGZ-UHFFFAOYSA-N 0.000 claims description 2
- XXBDWLFCJWSEKW-UHFFFAOYSA-N dimethylbenzylamine Chemical compound CN(C)CC1=CC=CC=C1 XXBDWLFCJWSEKW-UHFFFAOYSA-N 0.000 claims description 2
- MYTMXVHNEWBFAL-UHFFFAOYSA-L dipotassium;carbonate;hydrate Chemical compound O.[K+].[K+].[O-]C([O-])=O MYTMXVHNEWBFAL-UHFFFAOYSA-L 0.000 claims description 2
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 claims description 2
- MQRJBSHKWOFOGF-UHFFFAOYSA-L disodium;carbonate;hydrate Chemical compound O.[Na+].[Na+].[O-]C([O-])=O MQRJBSHKWOFOGF-UHFFFAOYSA-L 0.000 claims description 2
- STVZJERGLQHEKB-UHFFFAOYSA-N ethylene glycol dimethacrylate Substances CC(=C)C(=O)OCCOC(=O)C(C)=C STVZJERGLQHEKB-UHFFFAOYSA-N 0.000 claims description 2
- 150000004665 fatty acids Chemical class 0.000 claims description 2
- DWXAVNJYFLGAEF-UHFFFAOYSA-N furan-2-ylmethyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCC1=CC=CO1 DWXAVNJYFLGAEF-UHFFFAOYSA-N 0.000 claims description 2
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 2
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- FQPSGWSUVKBHSU-UHFFFAOYSA-N methacrylamide Chemical compound CC(=C)C(N)=O FQPSGWSUVKBHSU-UHFFFAOYSA-N 0.000 claims description 2
- 229910000403 monosodium phosphate Inorganic materials 0.000 claims description 2
- 235000019799 monosodium phosphate Nutrition 0.000 claims description 2
- GHLZUHZBBNDWHW-UHFFFAOYSA-N nonanamide Chemical compound CCCCCCCCC(N)=O GHLZUHZBBNDWHW-UHFFFAOYSA-N 0.000 claims description 2
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 claims description 2
- LOGTZDQTPQYKEN-HZJYTTRNSA-N oxiran-2-ylmethyl (9z,12z)-octadeca-9,12-dienoate Chemical compound CCCCC\C=C/C\C=C/CCCCCCCC(=O)OCC1CO1 LOGTZDQTPQYKEN-HZJYTTRNSA-N 0.000 claims description 2
- KYVUJPJYTYQNGJ-UHFFFAOYSA-N oxiran-2-ylmethyl hexadecanoate Chemical compound CCCCCCCCCCCCCCCC(=O)OCC1CO1 KYVUJPJYTYQNGJ-UHFFFAOYSA-N 0.000 claims description 2
- RPQRDASANLAFCM-UHFFFAOYSA-N oxiran-2-ylmethyl prop-2-enoate Chemical compound C=CC(=O)OCC1CO1 RPQRDASANLAFCM-UHFFFAOYSA-N 0.000 claims description 2
- HVAMZGADVCBITI-UHFFFAOYSA-N pent-4-enoic acid Chemical compound OC(=O)CCC=C HVAMZGADVCBITI-UHFFFAOYSA-N 0.000 claims description 2
- 239000011736 potassium bicarbonate Substances 0.000 claims description 2
- 235000015497 potassium bicarbonate Nutrition 0.000 claims description 2
- 229910000028 potassium bicarbonate Inorganic materials 0.000 claims description 2
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 claims description 2
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 claims description 2
- 239000001593 sorbitan monooleate Substances 0.000 claims description 2
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- 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 2
- 229920005989 resin Polymers 0.000 abstract description 12
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- 239000008367 deionised water Substances 0.000 description 41
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- 238000003756 stirring Methods 0.000 description 36
- 239000000203 mixture Substances 0.000 description 25
- 238000013008 moisture curing Methods 0.000 description 24
- 230000000052 comparative effect Effects 0.000 description 21
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- 150000003839 salts Chemical class 0.000 description 11
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- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 9
- 239000000758 substrate Substances 0.000 description 9
- 230000008901 benefit Effects 0.000 description 8
- 239000004721 Polyphenylene oxide Chemical group 0.000 description 7
- 238000001723 curing Methods 0.000 description 7
- 229920000570 polyether Chemical group 0.000 description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- 229920000388 Polyphosphate Polymers 0.000 description 6
- ULGYAEQHFNJYML-UHFFFAOYSA-N [AlH3].[Ca] Chemical compound [AlH3].[Ca] ULGYAEQHFNJYML-UHFFFAOYSA-N 0.000 description 6
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- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 description 6
- 230000006870 function Effects 0.000 description 5
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- 238000012986 modification Methods 0.000 description 5
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- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 4
- 229920001296 polysiloxane Polymers 0.000 description 4
- 238000010298 pulverizing process Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 3
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 3
- 150000007942 carboxylates Chemical class 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 125000003700 epoxy group Chemical group 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 230000035484 reaction time Effects 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- KXDHJXZQYSOELW-UHFFFAOYSA-N Carbamic acid Chemical group NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 241000282320 Panthera leo Species 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 239000006087 Silane Coupling Agent Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 239000003085 diluting agent Substances 0.000 description 2
- 239000004205 dimethyl polysiloxane Substances 0.000 description 2
- 239000002612 dispersion medium Substances 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002609 medium Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 125000004430 oxygen atom Chemical group O* 0.000 description 2
- LBIYNOAMNIKVKF-FPLPWBNLSA-N palmitoleyl alcohol Chemical compound CCCCCC\C=C/CCCCCCCCO LBIYNOAMNIKVKF-FPLPWBNLSA-N 0.000 description 2
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 2
- 229920000058 polyacrylate Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- ZQTYRTSKQFQYPQ-UHFFFAOYSA-N trisiloxane Chemical compound [SiH3]O[SiH2]O[SiH3] ZQTYRTSKQFQYPQ-UHFFFAOYSA-N 0.000 description 2
- 239000002966 varnish Substances 0.000 description 2
- CDOUZKKFHVEKRI-UHFFFAOYSA-N 3-bromo-n-[(prop-2-enoylamino)methyl]propanamide Chemical compound BrCCC(=O)NCNC(=O)C=C CDOUZKKFHVEKRI-UHFFFAOYSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- 101100258233 Caenorhabditis elegans sun-1 gene Proteins 0.000 description 1
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical group NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 description 1
- CTKINSOISVBQLD-UHFFFAOYSA-N Glycidol Chemical compound OCC1CO1 CTKINSOISVBQLD-UHFFFAOYSA-N 0.000 description 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 1
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 1
- 244000208060 Lawsonia inermis Species 0.000 description 1
- 229920001732 Lignosulfonate Polymers 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
- 229920002367 Polyisobutene Polymers 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 description 1
- 239000003377 acid catalyst Substances 0.000 description 1
- 125000005396 acrylic acid ester group Chemical group 0.000 description 1
- 238000007259 addition reaction Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 238000003483 aging Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 150000004996 alkyl benzenes Chemical class 0.000 description 1
- 125000003368 amide group Chemical group 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 239000002519 antifouling agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 229940092714 benzenesulfonic acid Drugs 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- CDQSJQSWAWPGKG-UHFFFAOYSA-N butane-1,1-diol Chemical compound CCCC(O)O CDQSJQSWAWPGKG-UHFFFAOYSA-N 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 239000013530 defoamer Substances 0.000 description 1
- 235000019329 dioctyl sodium sulphosuccinate Nutrition 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- 229920003063 hydroxymethyl cellulose Polymers 0.000 description 1
- 229940031574 hydroxymethyl cellulose Drugs 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 235000020778 linoleic acid Nutrition 0.000 description 1
- OYHQOLUKZRVURQ-IXWMQOLASA-N linoleic acid Natural products CCCCC\C=C/C\C=C\CCCCCCCC(O)=O OYHQOLUKZRVURQ-IXWMQOLASA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000004530 micro-emulsion Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000019198 oils Nutrition 0.000 description 1
- 125000001117 oleyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])/C([H])=C([H])\C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000012074 organic phase Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- UWJJYHHHVWZFEP-UHFFFAOYSA-N pentane-1,1-diol Chemical compound CCCCC(O)O UWJJYHHHVWZFEP-UHFFFAOYSA-N 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 229920000962 poly(amidoamine) Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000010526 radical polymerization reaction Methods 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 238000007151 ring opening polymerisation reaction Methods 0.000 description 1
- 238000007142 ring opening reaction Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 description 1
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 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
- C09D151/00—Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers
- C09D151/08—Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- 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
- C09D5/10—Anti-corrosive paints containing metal dust
- C09D5/106—Anti-corrosive paints containing metal dust containing Zn
-
- 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
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0893—Zinc
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)
- Paints Or Removers (AREA)
Abstract
The invention relates to the technical field of building coatings, and particularly discloses a water-based moisture-cured cold zinc acid and alkali resistant anticorrosive coating and application thereof. Comprises 50 to 70 parts of modified epoxy-acrylic resin emulsion, 20 to 30 parts of amphiphilic zinc-containing toughening emulsion, 5 to 10 parts of organic anti-corrosion reinforcing liquid, 0.5 to 1 part of carboxylic acid vanillyl alcohol ester extract, 18 to 33 parts of inorganic filler, 11.5 to 26 parts of auxiliary agent and 15 to 40 parts of water. The characteristic of air drying of the unsaturated carboxylic acid modified epoxy resin aqueous emulsion is utilized, and the diffusion, crosslinking and film forming effects are generated under the action of a drier and air, so that the self-curing film forming of the coating in a high humidity environment is ensured; the modified epoxy-acrylic resin emulsion can be embedded into resin, which is beneficial to the dispersion of inorganic filler and improves the comprehensive performance of the coating. The coating is suitable for various metal structures and large building group facilities, is convenient to operate, has small doping amount, has no pollution to the environment, and has higher practical value and popularization value.
Description
Technical Field
The invention relates to the technical field of building coatings, in particular to a water-based moisture-cured cold zinc acid and alkali resistant anticorrosive coating and application thereof.
Background
The water-based paint is environment-friendly and safe, and takes water as a solvent or a dispersion medium, and does not contain an organic solvent or a heavy metal compound. The water is used as a dispersion medium, so that the paint is environment-friendly and healthy, is safe to produce and use, and can reduce the production cost of the paint. The existing water-based protective paint used for most buildings or concrete has the problems of difficult construction, low permeability, incapability of curing and forming and the like in a damp-heat environment. Even if the curable water-based paint is coated, pulverization and falling off of a concrete base surface can occur under the long-term etching actions of moisture, damp heat, oxygen, sulfate or chloride ions and the like, so that steel bars are corroded, and even the phenomena of concrete cracking and overall function loss occur. In addition, most of the water-based paint has short service time in acid and alkali environments, has poor adhesion with metal or concrete base surfaces, and is easy to generate the problems of bubbles, bottom biting, stripping and the like. Especially, in building facilities under a high humidity environment, such as a water cooling tower, a large sewage treatment plant pool, an industrial impounding reservoir or a building group in a high humidity service environment, in order to realize coordination and unification among solidification, acid and alkali resistance, high permeability and corrosion resistance in the wet environment, recoating and complicated repair procedures must be performed, so that a great amount of economic loss and personnel waste are caused; in addition, even if the repainting and repair procedures are carried out, the existing water-based paint is difficult to realize the coordination and unification among solidification, acid and alkali resistance, high permeability and corrosion resistance in a wet environment.
Therefore, in order to reduce the corrosion of buildings by corrosive media and to prolong the service life of the buildings, it is highly desirable to find a water-based protective coating for construction facilities, which can be cured and formed under hot and humid conditions and has excellent acid and alkali resistance, permeability, corrosion resistance and the like.
Disclosure of Invention
Aiming at the problems, the invention provides the water-based moisture-curing cold zinc acid and alkali-resistant anticorrosive paint and the application thereof, which remarkably improve the acid and alkali resistance, adhesive force, wet heat resistance, water resistance and salt fog resistance of the water-based paint through the synergistic effect of the raw material components, can realize curing and forming under the high-humidity environment of a humid base surface, improve the durability of building facilities and effectively prevent the corrosion of metal structures and steel bars.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
an aqueous moisture-cured cold zinc acid and alkali resistant anticorrosive paint comprises the following raw materials in parts by weight: 50-70 parts of modified epoxy-acrylic resin emulsion, 20-30 parts of amphiphilic zinc-containing toughening emulsion, 5-10 parts of organic anti-corrosion reinforcing liquid, 0.5-1 part of carboxylic acid vanillyl alcohol ester extract, 18-33 parts of inorganic filler, 11.5-26 parts of auxiliary agent and 15-40 parts of water; wherein,
The modified epoxy-acrylic resin emulsion comprises the following raw materials in percentage by mass: 33.5 to 52 percent of glycidyl fatty acid-acrylic acid modified epoxy resin emulsion, 17.5 to 31 percent of first emulsifier, 12.5 to 29 percent of acrylic monomer, 4 to 8.5 percent of functional monomer, 1 to 4.5 percent of buffer solution, 1.5 to 6.5 percent of water, 1.5 to 4.5 percent of first initiator and 0.05 to 0.25 percent of first catalyst;
the glycidyl fatty acid-acrylic acid modified epoxy resin emulsion comprises the following raw materials in percentage by mass: 14 to 33.5 percent of glycidyl fatty acid ester, 43 to 66.5 percent of first epoxy resin, 3 to 9.5 percent of acrylic ester, 0.05 to 0.5 percent of second catalyst, 3 to 9.5 percent of isophorone diisocyanate, 2 to 8 percent of water, 4.5 to 10 percent of second emulsifier and 0.1 to 0.5 percent of buffer solution.
Compared with the prior art, the water-based moisture-curing cold zinc acid-base-resistant anticorrosive paint provided by the invention has the advantages that the glycidyl fatty acid ester is used as a diluent to carry out physical modification on epoxy resin, and has excellent acid capturing performance, and when free acid exists in a paint system, the acid can be captured and neutralized through the oxygen atom of the ester chain of the free acid, so that the acid resistance of the paint is improved; the isophorone diisocyanate reacts with hydroxyl in the epoxy group to generate a carbamate chain segment, so that the strength and toughness of the epoxy resin are improved, the acid and alkali resistance and weather resistance of the coating are improved, and in addition, the isocyanate group can also participate in an addition reaction, so that the crosslinking density is further increased; after the first epoxy resin is copolymerized with acrylic ester, isophorone diisocyanate, acrylic monomers and functional monomers, a waterborne epoxy-acrylic resin film forming substance with lower relative molecular mass and stronger permeability and carboxyl, benzene ring, carbamate and polyether chain segments is formed, and the waterborne epoxy-acrylic resin film forming substance contains a hydrophilic structure of flexible chains, polyether and polyester chain segments and a hydrophobic structure of rigid benzene ring, flexible polyether and the like, so that an amphiphilic toughening resin system is formed together. The modified epoxy-acrylic resin emulsion has the characteristic of air drying, and after the coating is formed into a film, unsaturated bonds of the coating can undergo oxidation crosslinking reaction under the action of a drier and oxygen to form a crosslinked network structure, so that the resin can be quickly dried and self-cured into a film in a high humidity environment, and the moisture resistance and the acid-base resistance of the water-based coating are enhanced. The amphiphilic zinc-containing toughening emulsion contains hydrophilic and lipophilic structural groups, and can be used together with other assistants after being copolymerized with epoxy resin, so that inorganic fillers such as zinc powder and the like can be better dispersed, and meanwhile, the coating film-forming resin is endowed with toughness and adhesive force. The modified epoxy-acrylic resin emulsion and the amphiphilic zinc-containing toughening emulsion are favorable for penetrating into capillary pores of a metal structure substrate, form a good wettability structure with the substrate, and form strong adhesive force with concrete, reinforcing steel bars or a protected building of the substrate through diffusion, aggregation and film formation. In addition, the rigid benzene ring and the flexible polyether and other hydrophobic chain segments on the modified epoxy-acrylic resin emulsion can isolate alkali aggregate reaction among concrete acid, alkali and salt components, and prevent pulverization or shedding on a concrete basal plane.
The water-based moisture-cured cold zinc acid and alkali-resistant anticorrosive paint provided by the invention plays a role in air drying of the unsaturated carboxylic acid modified epoxy resin water-based emulsion, utilizes the advantage of high drying speed of the acrylic resin, and after the paint is formed into a film, the resin is subjected to diffusion, crosslinking and film forming under the action of a drier and air, so that the toughness and the water resistance of the paint are improved, the self-curing film forming of the paint in a high humidity environment is ensured, the paint has the advantages of no falling off after long-term use and high-efficiency corrosion resistance, and the service life of a concrete building is effectively prolonged. The modified epoxy-acrylic resin emulsion has high permeability components and hydrophilic structures, can be embedded into resin to form a product with high solid content and low viscosity, is favorable for dispersing inorganic fillers such as zinc powder and the like, and simultaneously increases the weather resistance, corrosion resistance and permeability of the resin. The water-based moisture-curing cold zinc acid-base resistant anticorrosive paint is suitable for the interiors of various facilities of large building groups through the synergistic effect and specific content of the raw material components, is convenient to operate, small in doping amount, safe to use, free of pollution to the environment and high in practical value and popularization value.
Preferably, the glycidyl fatty acid ester is at least one of glycidyl acrylate, glycidyl palmitate, glycidyl linoleate, polypropylene glycol diglycidyl ether diacrylate or triglycidyl isocyanurate.
Preferably, the acrylic ester is at least one of amino polyethylene glycol methacrylate, 2-amino ethyl methacrylate, hydroxypropyl acrylate or hydroxyethyl acrylate.
Preferably, the first epoxy resin is bisphenol a type epoxy resin or bisphenol F type epoxy resin.
Further preferably, the bisphenol a type epoxy resin is at least one of epoxy resin E44, epoxy resin E51, or epoxy resin E20.
Further preferably, the bisphenol F type epoxy resin is at least one of bisphenol F type epoxy resin 830 or bisphenol F type epoxy resin 170.
Preferably, the second catalyst is at least one of N, N-dimethylbenzylamine, dibutyl tin dilaurate, triethylamine, tetramethyl ethylenediamine or boron trifluoride diethyl ether.
Preferably, the second emulsifier is at least one of sorbitan monooleate, coconut oil fatty acid diethanolamide, glycol polyoxyethylene ether or alkylphenol polyoxyethylene.
Preferably, the buffer solution is at least one of ammonia water, potassium bicarbonate water solution, sodium dihydrogen phosphate water solution, disodium hydrogen phosphate water solution, ammonium bicarbonate water solution, sodium carbonate water solution or potassium carbonate water solution.
Preferably, the mass concentration of the buffer solution is 4.5% -5.5%.
Preferably, the preparation method of the glycidyl fatty acid-acrylic acid modified epoxy resin emulsion comprises the following steps:
weighing the raw materials according to the designed proportion, uniformly mixing glycidyl fatty acid ester, first epoxy resin, acrylic ester, second catalyst, isophorone diisocyanate, water and second emulsifier at 80-90 ℃ for polymerization reaction; and adding a buffer solution to adjust to neutrality to obtain the glycidyl fatty acid-acrylic acid modified epoxy resin emulsion.
Further preferably, the polymerization reaction time is 0.5 to 1.5 hours.
The neutral pH is, for example, 6.5 to 7.5.
Further preferably, the epoxy value of the glycidyl fatty acid-acrylic acid modified epoxy resin emulsion is 0.11 to 0.14mol/100g.
The glycidyl fatty acid ester has excellent acid capturing performance, and when free acid exists in a coating system, the acid can be captured and neutralized through oxygen atoms of the ester chain of the free acid, so that the acid resistance of the coating is improved; according to the invention, the diluent glycidyl fatty acid ester is adopted to carry out physical modification on the epoxy resin, so that the viscosity of the resin is improved, and the dispersibility and leveling property of the system are improved. Through ring-opening polymerization of acrylic ester and epoxy resin, unsaturated acrylic ester and isophorone diisocyanate are grafted to the epoxy resin, so that the epoxy resin has unsaturated groups and generates carbamate chain segments with isocyanate groups, thereby being beneficial to improving the weather resistance and acid and alkali resistance of a coating film; the acrylic resin with the reactive functional group is compounded with the epoxy resin, so that the epoxy resin is endowed with the reactivity of free radical polymerization, the structure of the epoxy resin is more suitable for subsequent crosslinking modification, and the flexibility is increased. The invention realizes the physical and chemical double modification of the epoxy resin, and is beneficial to the subsequent crosslinking and polymerization of the epoxy-acrylic resin film-forming substance.
Preferably, the acrylic monomer is at least two of polyethylene glycol monomethyl ether acrylate, 2-hydroxy-3-phenoxypropyl acrylate, isobornyl methacrylate, methacrylamide, furfuryl methacrylate or ethylene glycol dimethacrylate.
The amide group has good alkali resistance and permeability, and the acrylic acid ester has good acid resistance and weather resistance; preferably, each acrylic monomer has unique structural characteristics. According to the invention, more than 2 acrylic monomers are selected, so that the advantages of all monomer groups can be exerted, complementary advantages are formed, the defect of a single monomer is overcome, and the function addition function is realized.
Preferably, the functional monomer is at least two of styrene, dicyclopentadienyloxyethyl methacrylate, (2R) -2-N-fluorenylmethoxycarbonyl amino-2-methyl-6-heptenoic acid, 3, 5-dihydroxy-6-heptenoic acid, 4-pentenoic acid, sodium methacrylate or 2-methyl-2-pentenoic acid.
Preferably, each functional monomer has unique structural characteristics. The invention selects more than 2 functional monomers, can exert the advantages of each monomer group, form advantage complementation, overcome the defect of single monomer and play the role of function addition.
The mixing ratio of two or more components of the acrylic monomer and the functional monomer is not required, and the components may be mixed in any ratio.
Preferably, the first emulsifier is at least one of castor oil polyoxyethylene ether, trihydroxy polyoxypropylene ether, nonylphenol polyoxyethylene ether, laurinol polyoxyethylene ether, cetyl alcohol polyoxyethylene ether or isooctyl alcohol polyoxyethylene ether.
The preferred first emulsifier eliminates the oil-water interfacial tension, thoroughly mixes the water and oil monomers together, ensures uniform dispersion of the reactants to form a uniform modified epoxy microemulsion film forming material, produces a stable aqueous polymer emulsion system, and contributes to the improvement of polymerization efficiency and product quality.
Preferably, the first initiator is at least one of ammonium persulfate aqueous solution, potassium persulfate aqueous solution, azodiisobutyronitrile aqueous solution or diisopropyl peroxydicarbonate aqueous solution.
Preferably, the mass concentration of the first initiator is 0.1% -0.15%.
Preferably, the first catalyst is at least one of ion exchange resin or p-toluenesulfonic acid.
Illustratively, the ion exchange resin comprises a D72 ion exchange resin or a D61 ion exchange resin.
Preferably, the preparation method of the modified epoxy-acrylic resin emulsion comprises the following steps:
step a, weighing all raw materials according to a designed proportion, and dissolving acrylic ester monomers in a first part of buffer solution to obtain an acrylic ester monomer solution;
step b, dissolving the functional monomer in a second part of buffer solution to obtain a functional monomer solution;
step c, uniformly mixing 50-70wt% of the acrylic ester monomer solution, a first emulsifier, glycidyl fatty acid-acrylic acid modified epoxy resin emulsion and water, and simultaneously dropwise adding 50-70wt% of the functional monomer solution and 8-15wt% of a first initiator at 65-75 ℃; simultaneously dripping the rest acrylic ester monomer solution, the functional monomer solution and the first initiator at the temperature of 85-95 ℃ for heat preservation reaction; adding a first catalyst to perform esterification reaction; and adding the rest buffer solution to adjust to neutrality to obtain the modified epoxy-acrylic resin emulsion.
It should be noted that there is no sequence between the step a and the step b.
It is further preferable that the mass ratio of the first part of buffer solution, the second part of buffer solution, and the remaining buffer solution is (60 to 77): 13 to 30): 10.
Further preferably, step c comprises: uniformly mixing 50-70wt% of the acrylic ester monomer solution, a first emulsifier, glycidyl fatty acid-acrylic acid modified epoxy resin emulsion and water, and simultaneously dropwise adding 50-70wt% of the functional monomer solution and 8-15wt% of a first initiator at 65-75 ℃ for 0.3-0.6 h; simultaneously dripping the rest acrylic ester monomer solution, the functional monomer solution and the first initiator at the temperature of 85-95 ℃ for 2-3 h, and carrying out heat preservation reaction for 1-1.5 h; adding a first catalyst to perform esterification reaction for 1 to 1.5 hours; and adding the rest buffer solution to adjust the pH to be between 6 and 7, thus obtaining the modified epoxy-acrylic resin emulsion.
Further preferably, the modified epoxy-acrylic resin emulsion has an epoxy value of 0.11 to 0.14mol/100g.
According to the invention, the glycidyl fatty acid-acrylic acid modified epoxy resin is copolymerized with acrylic monomers and functional monomers to form a polymer long chain containing multiple carboxyl groups, the epoxy groups and the carboxyl groups are subjected to esterification reaction under the action of a first catalyst to form a crosslinked reticular structure, and then a buffer solution is added to neutralize the acid value to generate molecular chains of the resin to form self-emulsifying colloidal particles, so that the subsequent polymerization reaction is facilitated. After the acrylic ester monomer, the functional monomer and the glycidol fatty acid-acrylic acid modified epoxy resin are polymerized, the epoxy resin contains amino, polyether, benzene ring and acrylic emulsion with larger molecular mass, so that the coating is endowed with excellent moisture curing, weather resistance and acid and alkali resistance. In addition, isocyanate groups remained in the glycidyl fatty acid-acrylic acid modified epoxy resin emulsion react with a trace amount of moisture in the air to generate amine, and amine substances can perform ring opening reaction with epoxy groups in the epoxy resin to form a crosslinked structure again, so that the coating film has the effects of moisture curing and toughening.
Preferably, the amphiphilic zinc-containing toughening emulsion comprises the following raw materials in percentage by mass: 2.5 to 9 percent of vegetable linoleic acid, 1 to 4.5 percent of vinyl alkoxy silane, 2.5 to 9 percent of N-methylol acrylamide, 2.5 to 9 percent of 3-methyl heptenoic acid, 1.5 to 7 percent of sodium methacrylate hydroxypropyl sulfonate, 0.05 to 0.3 percent of second initiator, 11 to 25 percent of second epoxy resin, 0.2 to 0.9 percent of aprotic acid solution, 26.5 to 47.5 percent of zinc powder, 1.5 to 4.5 percent of rice bran wax, 2.5 to 9 percent of second emulsifier, 1.5 to 4.5 percent of gamma-glycidyl ether oxypropyl trimethoxy silane, 5.5 to 16.5 percent of water and 2.5 to 9 percent of thickening dispersant.
In the invention, zinc powder is added into the epoxy resin, so that the protective effect can be generated on the substrate, and the electrochemical corrosion of the substrate is avoided; the rice bran wax has the functions of moisture resistance and corrosion resistance, and can be used as an organic flexibilizer and a film forming auxiliary agent to increase the dispersibility of zinc powder in an organic phase, improve the lipophilicity and uniformity of the coating and improve the moisture curing and corrosion resistance of the coating. The vegetable-based linoleic acid has reactive unsaturated bonds, the vinyl alkoxy silane has super-strong chemical stability, rich reactive functional groups and rigid cage-shaped structures, and the vinyl alkoxy silane and N-methylolacrylamide, 3-methyl heptenoic acid and sodium methacrylate are copolymerized to reduce the entanglement of molecular chains and form a hydrophilic and lipophilic toughening resin dispersion system, so that the dispersibility, the strength and the corrosion resistance of the coating are improved; under the action of aprotic acid catalyst, the solution reacts together to further crosslink and polymerize carboxylic acid, sulfonic acid and hydroxyl in the polymer to form an amphiphilic resin dispersion system with high toughness, and the amphiphilic resin dispersion system acts together with a second emulsifier and a silane coupling agent to improve the interfacial tension of organic and inorganic phases, so that zinc powder and rice bran wax are well dispersed in a film forming substance, the compatibility among components of the paint is increased, and the permeability and stability of the paint are maintained. The thickening and dispersing agent can improve the viscosity and the fluidity of the system, improve the leveling property and the consistency, prevent the layering and the precipitation of the amphiphilic zinc-containing toughening emulsion and endow the emulsion with better storage stability.
Preferably, the second epoxy resin is at least one of epoxy resin E44 or epoxy resin E51.
Preferably, the second initiator is at least one of ammonium persulfate aqueous solution, potassium persulfate aqueous solution, benzoyl peroxide aqueous solution or diisopropyl peroxydicarbonate aqueous solution.
Preferably, the mass concentration of the second initiator is 0.1% -0.2%.
Preferably, the aprotic acid solution is boron trifluoride acetic acid complex aqueous solution with the concentration of 0.2-0.6 mol/L.
Preferably, the thickening dispersant is an acrylic acid (ester) based/palm oleyl alcohol polyether-25 acrylate copolymer.
Preferably, the preparation method of the amphiphilic zinc-containing toughening emulsion comprises the following steps:
weighing the raw materials according to the designed proportion, and uniformly mixing part of the second emulsifier, water, plant-based linoleic acid, vinyl alkoxy silane, N-methylol acrylamide, 3-methyl heptenoic acid and sodium methacrylate at the temperature of 70-80 ℃; dripping a second initiator to perform polymerization reaction; adding a second epoxy resin and an aprotic acid solution, and carrying out esterification reaction at 100-120 ℃; zinc powder, rice bran wax, the rest of second emulsifier, gamma-glycidol ether oxypropyl trimethoxy silane and thickening dispersant are added and uniformly mixed to obtain the amphiphilic zinc-containing toughening emulsion.
Further preferably, the second initiator is added dropwise for 1.5 to 2 hours.
Further preferably, the polymerization reaction time is 2 to 3 hours.
Further preferably, the time of the esterification reaction is 3 to 4 hours.
Further preferably, the mass ratio of the part of the second emulsifier to the rest of the second emulsifier is 1 (0.8-1.2).
Illustratively, after zinc powder, rice bran wax, the rest of the second emulsifier and gamma-glycidol ether oxypropyl trimethoxysilane are added, stirring and mixing are carried out at a high speed of 600-1000 rpm for 30-50 min; and adding a thickening dispersant, stirring and mixing at 200-500 rpm for 3-5 min to obtain the amphiphilic zinc-containing toughening emulsion.
Preferably, the organic anti-corrosion reinforcing liquid comprises the following raw materials in percentage by mass: 5.5 to 14.5 percent of 4-aminodiphenylamine, 4.5 to 11.5 percent of 2,2' -disulfonic acid benzidine, 20 to 39 percent of phosphoric acid aqueous solution, 33.5 to 57.5 percent of second initiator, 0.1 to 1.5 percent of 1, 2-benzisothiazolin-3-one, 0.5 to 3 percent of gamma-glycidol ether oxypropyl trimethoxy silane and 4.5 to 11.5 percent of flaky graphite suspension.
Under the catalysis of phosphoric acid, the invention carries out in-situ polymerization on the scaly graphite, 4-aminodiphenylamine and 2,2' -disulfonic acid benzidine to generate aniline polymer-graphite flake composite material; in the presence of a silane coupling agent, the corrosion inhibitor 1, 2-benzisothiazolin-3-one is loaded into the aniline polymer-graphite flake composite material to form an organic anti-corrosion reinforcing component so as to realize isolation of invasion of corrosive medium, and a passivation layer is formed on the surface of metal or reinforcing steel bar, so that corrosion of the metal is effectively prevented.
Preferably, the concentration of the phosphoric acid aqueous solution is 5-8 mol/L.
Preferably, the mass concentration of the flaky graphite suspension is 20% -30%.
Preferably, the preparation method of the organic anti-corrosion reinforcing liquid comprises the following steps:
weighing the raw materials according to the designed proportion, dissolving 4-aminodiphenylamine and 2,2' -disulfonic acid benzidine in phosphoric acid aqueous solution, adding scaly graphite suspension, and uniformly mixing; dripping a third initiator at 0-5 ℃ to perform polymerization reaction; and (3) regulating the pH value to be between 5 and 6, adding 1, 2-benzisothiazolin-3-one and gamma-glycidol ether oxypropyl trimethoxy silane for grafting reaction, filtering, washing and drying to obtain the organic anti-corrosion reinforcing liquid.
Further preferably, the third initiator is added dropwise for 0.5 to 1 hour.
Further preferably, the polymerization reaction time is 1 to 1.5 hours.
The pH of the system is adjusted, for example, by means of liquid alkali or aqueous ammonia.
Further preferably, the time of the grafting reaction is 3 to 4 hours.
The washing temperature is, for example, 0-4 ℃, and the washing is performed for 5-10 min by using water and then absolute ethyl alcohol.
Further preferably, the drying temperature is 40-50 ℃ and the drying time is 1-3 h.
Preferably, the carboxylic acid vanillyl ester is any two of octanoic acid vanillyl ester, vanillyl nonanamide capsaicin, nordihydrocapsaicin or dihydrocapsaicin ester.
Further preferably, the mass ratio of 2 components in the vanillyl carboxylate is 1 (1-4).
The optimized vanillyl carboxylate is a high-permeability corrosion-resistant reinforcing agent, has strong antioxidant activity, can remove oxidation free radicals of polymer chains in the aqueous epoxy resin coating, prevents ageing, pulverization and cracking of the coating, has higher permeability and corrosion resistance, and can effectively prevent corrosion of substrate metals.
Preferably, the inorganic filler comprises the following components in parts by weight: 2-5 parts of calcium polyphosphate aluminum powder, 10-15 parts of quartz powder, 3-8 parts of polyamide wax powder and 3-5 parts of flaky aluminum powder.
Preferably, the auxiliary agent comprises the following components in parts by weight: 3 to 5 parts of dispersing agent, 1 to 2 parts of thickening agent, 3 to 10 parts of quick-drying agent, 1 to 3 parts of leveling agent, 3 to 5 parts of wetting agent and 0.5 to 1 part of defoaming agent.
Further preferably, the dispersant is at least two of 2-4 generation hyperbranched polyamidoamine, 2-4 generation hyperbranched poly (amine) ester, polyisobutylene bissuccinimide, ethylene bisstearamide, polyvinylpyrrolidone or PF152 modified polyacrylate.
The preferred dispersants of the present invention uniformly disperse various inorganic components of a coating in a film-forming emulsion to form a uniform high solids coating system.
More preferably, 2 or more components in the dispersant are mixed in equal mass.
Further preferably, the thickener is at least one of sodium carboxymethyl cellulose, sodium hydroxymethyl cellulose, thickener BLJ-80, thickener TT-935 or sodium hydroxyethyl cellulose.
Further preferably, the quick-drying agent comprises butanediol and pentanediol with the volume ratio of (0.8-1.2) to (0.8-1.2).
Further preferably, the leveling agent is at least one of BNK-LK600 leveling agent, polyester modified polysiloxane or polyoxyethylene ether grafted trisiloxane.
The preferred leveling agent can promote the paint to form a smooth and even coating film in the drying and film forming process, reduce the surface tension between the paint and the substrate, ensure that the paint and the substrate have optimal wettability, reduce the surface defects such as orange peel, roll marks, shrinkage cavities, pits or pinholes and the like after the paint is constructed, and increase the acid and alkali resistance and durability of the paint.
Further preferred, the wetting agent is at least one of dioctyl sodium sulfosuccinate, alkyl benzene sulfonic acid amine, ethoxylated alkyl sodium sulfate, sodium fatty alcohol ether sulfate, sodium lignin sulfonate, PF152 modified polyacrylate polymer, or JH10 wetting agent.
The preferred wetting agent of the present invention wets the mineral, reduces the surface tension of the liquid and the interfacial tension between the solid and the liquid, and allows the emulsion to spread easily and mix uniformly on the solid surface.
Further preferably, the defoamer is a modified polysiloxane copolymer.
More preferably, the modified polysiloxane copolymer comprises at least one of polydimethylsiloxane, polyether modified polysiloxane copolymer, polyether modified trisiloxane, polyethylene oxide modified polytrisiloxane, or polyethylene glycol ester modified polydimethylsiloxane.
Preferably, the water is deionized water.
The invention provides a preparation method of an aqueous moisture-cured cold zinc acid and alkali resistant anticorrosive paint, which comprises the following steps:
s1, weighing raw materials according to a designed proportion, and uniformly mixing modified epoxy-acrylic resin emulsion, vanillyl carboxylate, organic anti-corrosion reinforcing liquid, calcium aluminum polyphosphate, quartz powder and a dispersing agent to obtain a first mixture;
s2, adding an amphiphilic zinc-containing toughening emulsion, flaky aluminum powder, a thickening agent, polyamide wax powder, a quick-drying agent, a leveling agent, a wetting agent and water into the first mixture, and uniformly mixing to obtain a second mixture;
And S3, adding a defoaming agent into the second mixture, and uniformly mixing to obtain the water-based moisture-cured cold zinc acid and alkali-resistant anticorrosive paint.
Preferably, in step S1, the mixing is performed in a stirring state, and the stirring speed is 200-400 rpm, and the stirring time is 10-30 min.
Preferably, in step S2, the mixing is performed in a stirring state, and the stirring speed is 100-200 rpm, and the stirring time is 20-30 min.
Preferably, in step S3, the mixing is performed in a stirring state, and the stirring speed is 500-700 rpm, and the stirring time is 10-30 min.
The invention also provides application of the water-based moisture-cured cold zinc acid and alkali resistant anticorrosive paint in corrosion prevention of metal building facilities.
The water-based moisture-cured cold zinc acid and alkali-resistant anticorrosive paint prepared by the invention belongs to a single-component quick-drying moisture-cured paint, is suitable for various facility protection of large building groups, and can keep excellent long-acting anticorrosive isolation performance of water resistance, acid resistance, alkali resistance, salt resistance and high-concentration organic pollutants in a high-concentration organic wastewater treatment tank and a chemical plant wastewater tank; meanwhile, the method can not generate curing reaction with moisture in the environment, has the characteristics of wide application range, convenient operation, safe use, no pollution to the environment and the like, and is favorable for commercial popularization and industrialized application.
Detailed Description
The present invention will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Example 1
The embodiment provides a water-based moisture-curing cold zinc acid and alkali-resistant anticorrosive paint which is prepared from the following raw materials in parts by weight: 50 parts of modified epoxy-acrylic resin emulsion, 20 parts of amphiphilic zinc-containing toughening emulsion, 5 parts of organic anti-corrosion reinforcing liquid, 0.5 part of carboxylic acid vanillyl alcohol ester, 18 parts of inorganic filler, 11.5 parts of auxiliary agent and 15 parts of deionized water. Wherein,
the modified epoxy-acrylic resin emulsion comprises the following raw materials in percentage by mass: 35% of glycidyl fatty acid-acrylic acid modified epoxy resin emulsion, 30% of a first emulsifier, 24% of an acrylic monomer, 4% of a functional monomer, 3% of a buffer solution, 1.9% of deionized water, 2% of a first initiator and 0.1% of a first catalyst.
The glycidyl fatty acid-acrylic acid modified epoxy resin emulsion comprises the following raw materials in percentage by mass: 15% of glycidyl fatty acid ester, 56% of first epoxy resin, 9.3% of acrylic ester, 0.5% of second catalyst, 7% of isophorone diisocyanate, 7.5% of deionized water, 4.5% of second emulsifier and 0.2% of buffer solution.
The amphiphilic zinc-containing toughening emulsion comprises the following raw materials in percentage by mass: 8% of vegetable-based linoleic acid, 1.5% of vinyl alkoxy silane, 3.5% of N-methylolacrylamide, 3.5% of 3-methyl heptenoic acid, 2% of sodium methacrylate hydroxypropyl sulfonate, 0.1% of a second initiator, 24% of a second epoxy resin, 0.3% of an aprotic acid solution, 36% of zinc powder, 4.3% of rice bran wax, 3.5% of a second emulsifier, 4.3% of gamma-glycidyl ether oxypropyl trimethoxy silane, 6% of deionized water and 3% of an acrylic acid (ester) type/palmitoleic alcohol polyether-25 acrylate copolymer.
The organic anti-corrosion reinforcing liquid consists of the following raw materials in percentage by mass: 6% of 4-aminodiphenylamine, 11% of 2,2' -disulfonic acid benzidine, 21% of 5mol/L phosphoric acid aqueous solution, 54.6% of a second initiator, 1.4% of 1, 2-benzisothiazolin-3-one, 1% of gamma-glycidyl ether oxypropyl trimethoxy silane and 5% of a flaky graphite suspension with the mass concentration of 20%.
The inorganic filler consists of the following components in parts by weight: 2 parts of calcium polyphosphate aluminum powder, 10 parts of quartz powder, 3 parts of polyamide wax powder and 3 parts of flaky aluminum powder.
The auxiliary agent consists of the following components in parts by weight: 3 parts of dispersing agent, 1 part of thickening agent, 3 parts of quick-drying agent, 1 part of leveling agent, 3 parts of wetting agent and 0.5 part of defoaming agent.
The preparation method of the water-based moisture-cured cold zinc acid and alkali resistant anticorrosive paint comprises the following steps:
s1, respectively preparing modified epoxy-acrylic resin emulsion, amphiphilic zinc-containing toughening emulsion and organic anti-corrosion reinforcing liquid. Wherein,
(1) The preparation method of the modified epoxy-acrylic resin emulsion comprises the following steps:
step 1, weighing raw materials according to a designed proportion, uniformly mixing glycidyl fatty acid ester, first epoxy resin, acrylic ester, a second catalyst, isophorone diisocyanate, deionized water and a second emulsifier at 80 ℃ for polymerization reaction for 1.5 hours; buffer solution was added to adjust to ph=7.5 to obtain a glycidyl fatty acid-acrylic acid modified epoxy resin emulsion having an epoxy value of 0.11mol/100 g.
And 2, dissolving the acrylic monomer in the first part of buffer solution to obtain an acrylic monomer solution.
And step 3, dissolving the functional monomer into a second part of buffer solution to obtain a functional monomer solution.
Step 4, uniformly mixing 50wt% of acrylic monomer solution, a first emulsifier, glycidyl fatty acid-acrylic acid modified epoxy resin emulsion and deionized water, and simultaneously dropwise adding 50wt% of functional monomer solution and 8wt% of first initiator at 65 ℃ for 0.3h; simultaneously dripping the rest acrylic monomer solution, the functional monomer solution and the first initiator at the temperature of 85 ℃ for 3 hours, and carrying out heat preservation reaction for 1 hour; adding a first catalyst to perform esterification reaction for 1h; the remaining buffer solution was added to adjust to ph=6 to give a modified epoxy-acrylic resin emulsion having an epoxy value of 0.11mol/100 g.
It should be noted that there is no sequence between steps 1 to 3.
The mass ratio of the first part of buffer solution, the second part of buffer solution and the rest of buffer solution is 23:4:3.
(2) The preparation method of the amphiphilic zinc-containing toughening emulsion comprises the following steps:
weighing all the raw materials according to the designed proportion, and uniformly mixing part of the second emulsifier, deionized water, plant-based linoleic acid, vinyl alkoxy silane, N-methylolacrylamide, 3-methyl heptenoic acid and sodium methacrylate hydroxypropyl sulfonate at 70 ℃; dripping a second initiator, and performing polymerization reaction for 2 hours after dripping for 1.5 hours; adding a second epoxy resin and an aprotic acid solution, and carrying out esterification reaction for 4 hours at 100 ℃; naturally cooling to room temperature, adding zinc powder, rice bran wax, the rest of second emulsifier and gamma-glycidoxypropyl trimethoxysilane, stirring at 600rpm at high speed, and mixing for 50min; and then adding acrylic acid (ester) or palm oleyl alcohol polyether-25 acrylic ester copolymer, stirring and mixing for 5min at 200rpm to obtain the amphiphilic zinc-containing toughening emulsion.
The mass ratio of part of the second emulsifier to the rest of the second emulsifier is 1:0.8.
(3) The preparation method of the organic anti-corrosion reinforcing liquid comprises the following steps:
weighing the raw materials according to the designed proportion, dissolving 4-aminodiphenylamine and 2,2' -disulfonic acid benzidine in phosphoric acid aqueous solution, adding a flaky graphite suspension with the mass concentration of 20%, and uniformly mixing; dripping a third initiator at 0 ℃ for 1h, and carrying out polymerization reaction for 1h; ammonia water is used for adjusting pH=5, 1, 2-benzisothiazolin-3-one and gamma-glycidol ether oxypropyl trimethoxy silane are added for grafting reaction for 3 hours, filtration is carried out, water washing is carried out at 0 ℃, absolute ethyl alcohol is used for washing for 5 minutes, and drying is carried out at 40 ℃ for 3 hours, so that the organic anti-corrosion reinforcing liquid is obtained.
S2, weighing the raw materials according to a designed proportion, mixing and stirring the modified epoxy-acrylic resin emulsion, the carboxylic acid vanillyl alcohol ester, the organic anti-corrosion reinforcing liquid, the calcium aluminum polyphosphate, the quartz powder and the dispersing agent at the speed of 200rpm for 30min to obtain a first mixture;
s3, adding the amphiphilic zinc-containing toughening emulsion, the flaky aluminum powder, the thickener, the polyamide wax powder, the quick-drying agent, the flatting agent, the wetting agent and the deionized water into the first mixture, and mixing and stirring at the speed of 100rpm for 30min to obtain a second mixture;
s4, adding the defoaming agent into the second mixture, mixing and stirring at the speed of 500rpm for 30min to obtain the water-based moisture-curing cold zinc acid and alkali resistant anticorrosive paint.
The specific components of the raw materials of example 1 are shown in table 1.
Example 2
The embodiment provides a water-based moisture-curing cold zinc acid and alkali-resistant anticorrosive paint which is prepared from the following raw materials in parts by weight: 55 parts of modified epoxy-acrylic resin emulsion, 22 parts of amphiphilic zinc-containing toughening emulsion, 7 parts of organic anti-corrosion reinforcing liquid, 0.7 part of carboxylic acid vanillyl alcohol ester, 23 parts of inorganic filler, 12.4 parts of auxiliary agent and 20 parts of deionized water. Wherein,
the modified epoxy-acrylic resin emulsion comprises the following raw materials in percentage by mass: 34% of glycidyl fatty acid-acrylic acid modified epoxy resin emulsion, 23% of a first emulsifier, 27% of an acrylic monomer, 8% of a functional monomer, 2% of a buffer solution, 3.8% of deionized water, 2% of a first initiator and 0.2% of a first catalyst.
The glycidyl fatty acid-acrylic acid modified epoxy resin emulsion comprises the following raw materials in percentage by mass: 17% of glycidyl fatty acid ester, 66% of first epoxy resin, 3.5% of acrylic ester, 0.1% of second catalyst, 3.5% of isophorone diisocyanate, 3.5% of deionized water, 6% of second emulsifier and 0.4% of buffer solution.
The amphiphilic zinc-containing toughening emulsion comprises the following raw materials in percentage by mass: 4% of vegetable-based linoleic acid, 1.7% of vinyl alkoxy silane, 8% of N-methylolacrylamide, 3% of 3-methylheptenoic acid, 2.5% of sodium hydroxy-propylmethacrylate, 0.2% of a second initiator, 20% of a second epoxy resin, 0.7% of an aprotic acid solution, 37% of zinc powder, 1.7% of rice bran wax, 4% of a second emulsifier, 1.7% of gamma-glycidyl ether oxypropyl trimethoxysilane, 7% of deionized water and 8.5% of an acrylic/palmitoleic polyether-25 acrylate copolymer.
The organic anti-corrosion reinforcing liquid consists of the following raw materials in percentage by mass: 6.5% of 4-aminodiphenylamine, 8.5% of 2,2' -disulfonic acid benzidine, 21.5% of 6mol/L phosphoric acid aqueous solution, 56% of a second initiator, 0.5% of 1, 2-benzisothiazolin-3-one, 1% of gamma-glycidyl ether oxypropyl trimethoxysilane and 6% of a flaky graphite suspension with the mass concentration of 25%.
The inorganic filler consists of the following components in parts by weight: 3 parts of calcium polyphosphate aluminum powder, 12 parts of quartz powder, 4 parts of polyamide wax powder and 4 parts of flaky aluminum powder.
The auxiliary agent consists of the following components in parts by weight: 4 parts of dispersing agent, 1.2 parts of thickening agent, 5 parts of quick-drying agent, 1.5 parts of leveling agent, 3.5 parts of wetting agent and 0.7 part of defoaming agent.
The preparation method of the water-based moisture-cured cold zinc acid and alkali resistant anticorrosive paint comprises the following steps:
s1, respectively preparing modified epoxy-acrylic resin emulsion, amphiphilic zinc-containing toughening emulsion and organic anti-corrosion reinforcing liquid. Wherein,
(1) The preparation method of the modified epoxy-acrylic resin emulsion comprises the following steps:
step 1, weighing raw materials according to a designed proportion, uniformly mixing glycidyl fatty acid ester, first epoxy resin, acrylic ester, a second catalyst, isophorone diisocyanate, deionized water and a second emulsifier at 85 ℃, and carrying out polymerization reaction for 1h; buffer solution was added to adjust to ph=7 to obtain a glycidyl fatty acid-acrylic acid modified epoxy resin emulsion having an epoxy value of 0.12mol/100 g.
And 2, dissolving the acrylic monomer in the first part of buffer solution to obtain an acrylic monomer solution.
And step 3, dissolving the functional monomer into a second part of buffer solution to obtain a functional monomer solution.
Step 4, uniformly mixing 55wt% of acrylic monomer solution, a first emulsifier, glycidyl fatty acid-acrylic acid modified epoxy resin emulsion and deionized water, and simultaneously dropwise adding 55wt% of functional monomer solution and 10wt% of first initiator at 70 ℃ for 0.4h; simultaneously dripping the rest acrylic monomer solution, the functional monomer solution and the first initiator at 90 ℃ for 2.2 hours, and carrying out heat preservation reaction for 1.5 hours; adding a first catalyst to perform esterification reaction for 1.5h; the remaining buffer solution was added to adjust to ph=6.5 to give a modified epoxy-acrylic resin emulsion having an epoxy value of 0.12mol/100 g.
It should be noted that there is no sequence between steps 1 to 3.
The mass ratio of the first part of buffer solution to the second part of buffer solution to the rest of buffer solution is 7:2:1.
(2) The preparation method of the amphiphilic zinc-containing toughening emulsion comprises the following steps:
weighing all the raw materials according to the designed proportion, and uniformly mixing part of the second emulsifier, deionized water, plant-based linoleic acid, vinyl alkoxy silane, N-methylolacrylamide, 3-methyl heptenoic acid and sodium methacrylate hydroxypropyl sulfonate at 75 ℃; dripping a second initiator, and performing polymerization reaction for 2.5 hours after the dripping is finished for 2 hours; adding a second epoxy resin and an aprotic acid solution, and carrying out esterification reaction for 3.5h at 105 ℃; naturally cooling to room temperature, adding zinc powder, rice bran wax, the rest of second emulsifier and gamma-glycidoxypropyl trimethoxysilane, and stirring and mixing at 650rpm for 45min; and then adding acrylic acid (ester) or palm oleyl alcohol polyether-25 acrylic ester copolymer, stirring and mixing for 4min at 250rpm to obtain the amphiphilic zinc-containing toughening emulsion.
The mass ratio of part of the second emulsifier to the rest of the second emulsifier is 1:1.
(3) The preparation method of the organic anti-corrosion reinforcing liquid comprises the following steps:
weighing the raw materials according to the designed proportion, dissolving 4-aminodiphenylamine and 2,2' -disulfonic acid benzidine in phosphoric acid aqueous solution, adding a flaky graphite suspension with the mass concentration of 25%, and uniformly mixing; dripping a third initiator at 2 ℃ for 1h, and carrying out polymerization reaction for 1h; ammonia water is used for regulating pH value to be 5.5, 1, 2-benzisothiazolin-3-one and gamma-glycidol ether oxypropyl trimethoxy silane are added for grafting reaction for 3.5 hours, filtering is carried out, water washing is carried out at 4 ℃, absolute ethyl alcohol is used for washing for 6 minutes, and drying is carried out at 45 ℃ for 2 hours, so that the organic anti-corrosion reinforcing liquid is obtained.
S2, weighing the raw materials according to a designed proportion, mixing and stirring the modified epoxy-acrylic resin emulsion, the carboxylic acid vanillyl alcohol ester, the organic anti-corrosion reinforcing liquid, the calcium aluminum polyphosphate, the quartz powder and the dispersing agent at the speed of 250rpm for 25min to obtain a first mixture;
s3, adding the amphiphilic zinc-containing toughening emulsion, the flaky aluminum powder, the thickener, the polyamide wax powder, the quick-drying agent, the flatting agent, the wetting agent and the deionized water into the first mixture, and mixing and stirring at the speed of 150rpm for 25min to obtain a second mixture;
S4, adding the defoaming agent into the second mixture, mixing and stirring at the speed of 550rpm for 25min to obtain the water-based moisture-curing cold zinc acid and alkali resistant anticorrosive paint.
The specific components of the raw materials of example 2 are shown in table 1.
Example 3
The embodiment provides a water-based moisture-curing cold zinc acid and alkali-resistant anticorrosive paint which is prepared from the following raw materials in parts by weight: 60 parts of modified epoxy-acrylic resin emulsion, 25 parts of amphiphilic zinc-containing toughening emulsion, 9 parts of organic anti-corrosion reinforcing liquid, 0.8 part of carboxylic acid vanillyl alcohol ester, 25.5 parts of inorganic filler, 17.8 parts of auxiliary agent and 35 parts of deionized water. Wherein,
the modified epoxy-acrylic resin emulsion comprises the following raw materials in percentage by mass: 40% of glycidyl fatty acid-acrylic acid modified epoxy resin emulsion, 24% of a first emulsifier, 20% of an acrylic monomer, 6% of a functional monomer, 2.5% of a buffer solution, 4.5% of deionized water, 2.75% of a first initiator and 0.25% of a first catalyst.
The glycidyl fatty acid-acrylic acid modified epoxy resin emulsion comprises the following raw materials in percentage by mass: 23% of glycidyl fatty acid ester, 53% of first epoxy resin, 6% of acrylic ester, 0.3% of second catalyst, 6.2% of isophorone diisocyanate, 4.5% of deionized water, 6.7% of second emulsifier and 0.3% of buffer solution.
The amphiphilic zinc-containing toughening emulsion comprises the following raw materials in percentage by mass: 5.3% of vegetable-based linoleic acid, 2.5% of vinyl alkoxy silane, 5% of N-methylolacrylamide, 5% of 3-methylheptenoic acid, 3.5% of sodium methacrylate hydroxypropyl sulfonate, 0.15% of a second initiator, 16% of a second epoxy resin, 0.5% of an aprotic acid solution, 35% of zinc powder, 3% of rice bran wax, 5.25% of a second emulsifier, 3% of gamma-glycidyl ether oxypropyl trimethoxysilane, 10.8% of deionized water and 5% of an acrylic acid (ester) type/palmitoleic alcohol polyether-25 acrylate copolymer.
The organic anti-corrosion reinforcing liquid consists of the following raw materials in percentage by mass: 10% of 4-aminodiphenylamine, 8% of 2,2' -disulfonic acid benzidine, 28% of 7mol/L phosphoric acid aqueous solution, 44% of a second initiator, 0.7% of 1, 2-benzisothiazolin-3-one, 1.3% of gamma-glycidyl ether oxypropyl trimethoxysilane and 8% of a flaky graphite suspension with the mass concentration of 28%.
The inorganic filler consists of the following components in parts by weight: 4 parts of calcium polyphosphate aluminum powder, 13 parts of quartz powder, 5 parts of polyamide wax powder and 3.5 parts of flaky aluminum powder.
The auxiliary agent consists of the following components in parts by weight: 3.5 parts of dispersing agent, 1.5 parts of thickening agent, 6 parts of quick-drying agent, 2 parts of leveling agent, 4 parts of wetting agent and 0.8 part of defoaming agent.
The preparation method of the water-based moisture-cured cold zinc acid and alkali resistant anticorrosive paint comprises the following steps:
s1, respectively preparing modified epoxy-acrylic resin emulsion, amphiphilic zinc-containing toughening emulsion and organic anti-corrosion reinforcing liquid. Wherein,
(1) The preparation method of the modified epoxy-acrylic resin emulsion comprises the following steps:
step 1, weighing raw materials according to a designed proportion, uniformly mixing glycidyl fatty acid ester, first epoxy resin, acrylic ester, a second catalyst, isophorone diisocyanate, deionized water and a second emulsifier at 90 ℃ for polymerization reaction for 0.5h; buffer solution was added to adjust to ph=6.5 to obtain a glycidyl fatty acid-acrylic acid modified epoxy resin emulsion having an epoxy value of 0.13mol/100 g.
And 2, dissolving the acrylic monomer in the first part of buffer solution to obtain an acrylic monomer solution.
And step 3, dissolving the functional monomer into a second part of buffer solution to obtain a functional monomer solution.
Step 4, uniformly mixing 60wt% of acrylic monomer solution, a first emulsifier, glycidyl fatty acid-acrylic acid modified epoxy resin emulsion and deionized water, and simultaneously dropwise adding 60wt% of functional monomer solution and 15wt% of first initiator at 75 ℃ for 0.5h; simultaneously dripping the rest acrylic monomer solution, the functional monomer solution and the first initiator at 95 ℃ for 2.5 hours, and carrying out heat preservation reaction for 1.2 hours; adding a first catalyst to perform esterification reaction for 1.3 hours; the remaining buffer solution was added to adjust to ph=7 to give a modified epoxy-acrylic resin emulsion having an epoxy value of 0.13mol/100 g.
It should be noted that there is no sequence between steps 1 to 3.
The mass ratio of the first part of buffer solution, the second part of buffer solution and the rest of buffer solution is 173:52:25.
(2) The preparation method of the amphiphilic zinc-containing toughening emulsion comprises the following steps:
weighing all the raw materials according to the designed proportion, and uniformly mixing part of the second emulsifier, deionized water, plant-based linoleic acid, vinyl alkoxy silane, N-methylolacrylamide, 3-methyl heptenoic acid and sodium methacrylate hydroxypropyl sulfonate at 75 ℃; dripping a second initiator, and performing polymerization reaction for 2 hours after dripping for 1.5 hours; adding a second epoxy resin and an aprotic acid solution, and carrying out esterification reaction for 3.5h at 110 ℃; naturally cooling to room temperature, adding zinc powder, rice bran wax, the rest of second emulsifier and gamma-glycidoxypropyl trimethoxysilane, stirring at 800rpm at high speed, and mixing for 40min; and then adding acrylic acid (ester) or palm oleyl alcohol polyether-25 acrylic ester copolymer, stirring and mixing for 5min at 300rpm to obtain the amphiphilic zinc-containing toughening emulsion.
The mass ratio of part of the second emulsifier to the rest of the second emulsifier is 1:1.
(3) The preparation method of the organic anti-corrosion reinforcing liquid comprises the following steps:
weighing the raw materials according to the designed proportion, dissolving 4-aminodiphenylamine and 2,2' -disulfonic acid benzidine in phosphoric acid aqueous solution, adding a flaky graphite suspension with the mass concentration of 28%, and uniformly mixing; dripping a third initiator at 3 ℃ for 0.6h, and carrying out polymerization reaction for 1.5h; ammonia water is used for adjusting pH=6, 1, 2-benzisothiazolin-3-one and gamma-glycidol ether oxypropyl trimethoxy silane are added for grafting reaction for 3.8h, filtering is carried out, water washing is carried out at 3 ℃, absolute ethyl alcohol is used for washing for 7min, and drying is carried out at 50 ℃ for 1.5h, so that the organic anti-corrosion reinforcing liquid is obtained.
S2, weighing the raw materials according to a designed proportion, mixing and stirring the modified epoxy-acrylic resin emulsion, the carboxylic acid vanillyl alcohol ester, the organic anti-corrosion reinforcing liquid, the calcium aluminum polyphosphate, the quartz powder and the dispersing agent at the speed of 300rpm for 20min to obtain a first mixture;
s3, adding the amphiphilic zinc-containing toughening emulsion, the flaky aluminum powder, the thickener, the polyamide wax powder, the quick-drying agent, the flatting agent, the wetting agent and the deionized water into the first mixture, and mixing and stirring at the speed of 160rpm for 25min to obtain a second mixture;
s4, adding the defoaming agent into the second mixture, mixing and stirring at the speed of 600rpm for 20min to obtain the water-based moisture-curing cold zinc acid and alkali resistant anticorrosive paint.
The specific components of the raw materials of example 3 are shown in table 1.
Example 4
The embodiment provides a water-based moisture-curing cold zinc acid and alkali-resistant anticorrosive paint which is prepared from the following raw materials in parts by weight: 65 parts of modified epoxy-acrylic resin emulsion, 28 parts of amphiphilic zinc-containing toughening emulsion, 9 parts of organic anti-corrosion reinforcing liquid, 0.9 part of carboxylic acid vanillyl alcohol ester, 29.5 parts of inorganic filler, 23.2 parts of auxiliary agent and 35 parts of deionized water. Wherein,
the modified epoxy-acrylic resin emulsion comprises the following raw materials in percentage by mass: 45% of glycidyl fatty acid-acrylic acid modified epoxy resin emulsion, 22% of a first emulsifier, 14% of an acrylic monomer, 5% of a functional monomer, 4% of a buffer solution, 6% of deionized water, 3.9% of a first initiator and 0.1% of a first catalyst.
The glycidyl fatty acid-acrylic acid modified epoxy resin emulsion comprises the following raw materials in percentage by mass: 22% of glycidyl fatty acid ester, 44% of first epoxy resin, 8.1% of acrylic ester, 0.4% of second catalyst, 9.5% of isophorone diisocyanate, 6% of deionized water, 9.5% of second emulsifier and 0.5% of buffer solution.
The amphiphilic zinc-containing toughening emulsion comprises the following raw materials in percentage by mass: 3.5% of vegetable-based linoleic acid, 2% of vinyl alkoxy silane, 3% of N-methylolacrylamide, 8% of 3-methylheptenoic acid, 3% of sodium methacrylate hydroxypropyl sulfonate, 0.25% of a second initiator, 12% of a second epoxy resin, 0.45% of an aprotic acid solution, 36% of zinc powder, 1.8% of rice bran wax, 8.5% of a second emulsifier, 2% of gamma-glycidyl ether oxypropyl trimethoxysilane, 16% of deionized water and 3.5% of an acrylic/palmitoleic polyether-25 acrylate copolymer.
The organic anti-corrosion reinforcing liquid consists of the following raw materials in percentage by mass: 7% of 4-aminodiphenylamine, 9% of 2,2' -disulfonic acid benzidine, 38% of 7mol/L phosphoric acid aqueous solution, 34% of a second initiator, 1% of 1, 2-benzisothiazolin-3-one, 2% of gamma-glycidoxypropyl trimethoxysilane and 9% of a flaky graphite suspension with the mass concentration of 28%.
The inorganic filler consists of the following components in parts by weight: 4 parts of calcium polyphosphate aluminum powder, 14 parts of quartz powder, 7 parts of polyamide wax powder and 4.5 parts of flaky aluminum powder.
The auxiliary agent consists of the following components in parts by weight: 4.5 parts of dispersing agent, 1.8 parts of thickening agent, 9 parts of quick-drying agent, 2.5 parts of leveling agent, 4.6 parts of wetting agent and 0.8 part of defoaming agent.
The preparation method of the water-based moisture-cured cold zinc acid and alkali resistant anticorrosive paint comprises the following steps:
s1, respectively preparing modified epoxy-acrylic resin emulsion, amphiphilic zinc-containing toughening emulsion and organic anti-corrosion reinforcing liquid. Wherein,
(1) The preparation method of the modified epoxy-acrylic resin emulsion comprises the following steps:
step 1, weighing raw materials according to a designed proportion, uniformly mixing glycidyl fatty acid ester, first epoxy resin, acrylic ester, a second catalyst, isophorone diisocyanate, deionized water and a second emulsifier at 90 ℃ for polymerization reaction for 0.8h; buffer solution was added to adjust to ph=7 to obtain a glycidyl fatty acid-acrylic acid modified epoxy resin emulsion having an epoxy value of 0.14mol/100 g.
And 2, dissolving the acrylic monomer in the first part of buffer solution to obtain an acrylic monomer solution.
And step 3, dissolving the functional monomer into a second part of buffer solution to obtain a functional monomer solution.
Step 4, uniformly mixing 68wt% of acrylic monomer solution, a first emulsifier, glycidyl fatty acid-acrylic acid modified epoxy resin emulsion and deionized water, and simultaneously dropwise adding 68wt% of functional monomer solution and 13wt% of first initiator at 72 ℃ for 0.6h; simultaneously dripping the rest acrylic monomer solution, the functional monomer solution and the first initiator at 90 ℃ for 2.8 hours, and carrying out heat preservation reaction for 1.1 hours; adding a first catalyst to perform esterification reaction for 1.1h; the remaining buffer solution was added to adjust to ph=6.5 to give a modified epoxy-acrylic resin emulsion having an epoxy value of 0.14mol/100 g.
It should be noted that there is no sequence between steps 1 to 3.
The mass ratio of the first part of buffer solution, the second part of buffer solution and the rest of buffer solution is 277:83:40.
(2) The preparation method of the amphiphilic zinc-containing toughening emulsion comprises the following steps:
weighing all the raw materials according to the designed proportion, and uniformly mixing part of the second emulsifier, deionized water, plant-based linoleic acid, vinyl alkoxy silane, N-methylolacrylamide, 3-methyl heptenoic acid and sodium methacrylate hydroxypropyl sulfonate at 78 ℃; dripping a second initiator, and performing polymerization reaction for 2.2 hours after the dripping is finished for 2 hours; adding a second epoxy resin and an aprotic acid solution, and carrying out esterification reaction for 3 hours at 115 ℃; naturally cooling to room temperature, adding zinc powder, rice bran wax, the rest of second emulsifier and gamma-glycidoxypropyl trimethoxysilane, stirring at 900rpm at high speed, and mixing for 45min; then adding acrylic acid (ester)/palm oleyl alcohol polyether-25 acrylic ester copolymer, stirring and mixing for 3min at 400rpm to obtain the amphiphilic zinc-containing toughening emulsion.
The mass ratio of part of the second emulsifier to the rest of the second emulsifier is 1:1.2.
(3) The preparation method of the organic anti-corrosion reinforcing liquid comprises the following steps:
weighing the raw materials according to the designed proportion, dissolving 4-aminodiphenylamine and 2,2' -disulfonic acid benzidine in phosphoric acid aqueous solution, adding a flaky graphite suspension with the mass concentration of 28%, and uniformly mixing; dripping a third initiator at the temperature of 4 ℃ for 0.5h, and carrying out polymerization reaction for 1.5h; ammonia water is used for adjusting pH=6, 1, 2-benzisothiazolin-3-one and gamma-glycidol ether oxypropyl trimethoxy silane are added for grafting reaction for 4 hours, filtration is carried out, water washing is carried out at 4 ℃, absolute ethyl alcohol is used for washing for 8 minutes, and drying is carried out at 50 ℃ for 1 hour, so that the organic anti-corrosion reinforcing liquid is obtained.
S2, weighing the raw materials according to a designed proportion, mixing and stirring the modified epoxy-acrylic resin emulsion, the carboxylic acid vanillyl alcohol ester, the organic anti-corrosion reinforcing liquid, the calcium aluminum polyphosphate, the quartz powder and the dispersing agent at the speed of 300rpm for 20min to obtain a first mixture;
s3, adding the amphiphilic zinc-containing toughening emulsion, the flaky aluminum powder, the thickener, the polyamide wax powder, the quick-drying agent, the flatting agent, the wetting agent and the deionized water into the first mixture, and mixing and stirring at the speed of 200rpm for 20min to obtain a second mixture;
S4, adding the defoaming agent into the second mixture, mixing and stirring at the speed of 580rpm for 15min to obtain the water-based moisture-curing cold zinc acid and alkali resistant anticorrosive paint.
The specific components of the raw materials of example 4 are shown in table 1.
Example 5
The embodiment provides a water-based moisture-curing cold zinc acid and alkali-resistant anticorrosive paint which is prepared from the following raw materials in parts by weight: 70 parts of modified epoxy-acrylic resin emulsion, 30 parts of amphiphilic zinc-containing toughening emulsion, 10 parts of organic anti-corrosion reinforcing liquid, 1 part of carboxylic acid vanillyl alcohol ester, 33 parts of inorganic filler, 26 parts of auxiliary agent and 40 parts of deionized water. Wherein,
the modified epoxy-acrylic resin emulsion comprises the following raw materials in percentage by mass: 50% of glycidyl fatty acid-acrylic acid modified epoxy resin emulsion, 19% of a first emulsifier, 18% of an acrylic monomer, 6.5% of a functional monomer, 1.5% of a buffer solution, 2.5% of deionized water, 2.3% of a first initiator and 0.2% of a first catalyst.
The glycidyl fatty acid-acrylic acid modified epoxy resin emulsion comprises the following raw materials in percentage by mass: 33% of glycidyl fatty acid ester, 46% of first epoxy resin, 6.15% of acrylic ester, 0.2% of second catalyst, 7.5% of isophorone diisocyanate, 2% of deionized water, 5% of second emulsifier and 0.15% of buffer solution.
The amphiphilic zinc-containing toughening emulsion comprises the following raw materials in percentage by mass: 3% of vegetable-based linoleic acid, 4% of vinyl alkoxy silane, 4% of N-methylolacrylamide, 5.5% of 3-methyl heptenoic acid, 6.5% of sodium methacrylate hydroxypropyl sulfonate, 0.2% of a second initiator, 13% of a second epoxy resin, 0.8% of an aprotic acid solution, 47% of zinc powder, 2% of rice bran wax, 3% of a second emulsifier, 2% of gamma-glycidyl ether oxypropyl trimethoxysilane, 6% of deionized water and 3% of an acrylic acid (ester) type/palm oleyl polyether-25 acrylate copolymer.
The organic anti-corrosion reinforcing liquid consists of the following raw materials in percentage by mass: 8% of 4-aminodiphenylamine, 10% of 2,2' -disulfonic acid benzidine, 30% of 8mol/L phosphoric acid aqueous solution, 39% of a second initiator, 0.2% of 1, 2-benzisothiazolin-3-one, 2.8% of gamma-glycidyl ether oxypropyl trimethoxy silane and 10% of a flaky graphite suspension with the mass concentration of 30%.
The inorganic filler consists of the following components in parts by weight: 5 parts of calcium polyphosphate aluminum powder, 15 parts of quartz powder, 8 parts of polyamide wax powder and 5 parts of flaky aluminum powder.
The auxiliary agent consists of the following components in parts by weight: 5 parts of dispersing agent, 2 parts of thickening agent, 10 parts of quick-drying agent, 3 parts of leveling agent, 5 parts of wetting agent and 1 part of defoaming agent.
The preparation method of the water-based moisture-cured cold zinc acid and alkali resistant anticorrosive paint comprises the following steps:
s1, respectively preparing modified epoxy-acrylic resin emulsion, amphiphilic zinc-containing toughening emulsion and organic anti-corrosion reinforcing liquid. Wherein,
(1) The preparation method of the modified epoxy-acrylic resin emulsion comprises the following steps:
step 1, weighing raw materials according to a designed proportion, uniformly mixing glycidyl fatty acid ester, first epoxy resin, acrylic ester, a second catalyst, isophorone diisocyanate, deionized water and a second emulsifier at 90 ℃ for polymerization reaction for 0.5h; buffer solution was added to adjust to ph=6.5 to obtain a glycidyl fatty acid-acrylic acid modified epoxy resin emulsion having an epoxy value of 0.11mol/100 g.
And 2, dissolving the acrylic monomer in the first part of buffer solution to obtain an acrylic monomer solution.
And step 3, dissolving the functional monomer into a second part of buffer solution to obtain a functional monomer solution.
Step 4, uniformly mixing 70wt% of acrylic monomer solution, a first emulsifier, glycidyl fatty acid-acrylic acid modified epoxy resin emulsion and deionized water, and simultaneously dropwise adding 70wt% of functional monomer solution and 15wt% of first initiator at 75 ℃ for 0.6h; simultaneously dripping the rest acrylic monomer solution, the functional monomer solution and the first initiator at 95 ℃ for 2 hours, and carrying out heat preservation reaction for 1.2 hours; adding a first catalyst to perform esterification reaction for 1.2h; the remaining buffer solution was added to adjust to ph=7 to give a modified epoxy-acrylic resin emulsion having an epoxy value of 0.11mol/100 g.
It should be noted that there is no sequence between steps 1 to 3.
The mass ratio of the first part of buffer solution, the second part of buffer solution and the rest of buffer solution is 92:43:15.
(2) The preparation method of the amphiphilic zinc-containing toughening emulsion comprises the following steps:
weighing all the raw materials according to the designed proportion, and uniformly mixing part of the second emulsifier, deionized water, plant-based linoleic acid, vinyl alkoxy silane, N-methylolacrylamide, 3-methyl heptenoic acid and sodium methacrylate hydroxypropyl sulfonate at 80 ℃; dripping a second initiator, and performing polymerization reaction for 3 hours after 2 hours of dripping; adding a second epoxy resin and an aprotic acid solution, and carrying out esterification reaction for 3 hours at 120 ℃; naturally cooling to room temperature, adding zinc powder, rice bran wax, the rest of second emulsifier and gamma-glycidoxypropyl trimethoxysilane, stirring at 1000rpm at high speed, and mixing for 30min; then adding acrylic acid (ester)/palm oleyl alcohol polyether-25 acrylic ester copolymer, stirring and mixing for 3min at 500rpm to obtain the amphiphilic zinc-containing toughening emulsion.
The mass ratio of part of the second emulsifier to the rest of the second emulsifier is 1:1.2.
(3) The preparation method of the organic anti-corrosion reinforcing liquid comprises the following steps:
weighing the raw materials according to the designed proportion, dissolving 4-aminodiphenylamine and 2,2' -disulfonic acid benzidine in phosphoric acid aqueous solution, adding a flaky graphite suspension with the mass concentration of 30%, and uniformly mixing; dripping a third initiator at 5 ℃ for 0.5h, and carrying out polymerization reaction for 1.5h; ammonia water is used for adjusting pH=6, 1, 2-benzisothiazolin-3-one and gamma-glycidol ether oxypropyl trimethoxy silane are added for grafting reaction for 4 hours, filtration is carried out, water washing is carried out at 2 ℃, absolute ethyl alcohol is used for washing for 10 minutes, and drying is carried out at 50 ℃ for 1 hour, so that the organic anti-corrosion reinforcing liquid is obtained.
S2, weighing the raw materials according to a designed proportion, mixing and stirring the modified epoxy-acrylic resin emulsion, the carboxylic acid vanillyl alcohol ester, the organic anti-corrosion reinforcing liquid, the calcium aluminum polyphosphate, the quartz powder and the dispersing agent at the speed of 400rpm for 10min to obtain a first mixture;
s3, adding the amphiphilic zinc-containing toughening emulsion, the flaky aluminum powder, the thickener, the polyamide wax powder, the quick-drying agent, the flatting agent, the wetting agent and the deionized water into the first mixture, and mixing and stirring at the speed of 200rpm for 20min to obtain a second mixture;
s4, adding the defoaming agent into the second mixture, mixing and stirring at the speed of 700rpm for 10min to obtain the water-based moisture-curing cold zinc acid and alkali resistant anticorrosive paint.
The specific components of the raw materials of example 5 are shown in table 1.
Table 1 examples 1 to 5 specific raw material components of the aqueous moisture-curable cold zinc acid and alkali resistant anticorrosive paint
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Comparative example 1
This comparative example provides an aqueous moisture-curable cold zinc acid and base resistant anticorrosive coating similar to example 3, except that the modified epoxy-acrylic resin emulsion was replaced with an equivalent quality SUN-1 modified epoxy resin aqueous emulsion (i.e., a commercially available aqueous acrylic modified epoxy resin emulsion), available from Lv-Jining chemical technologies Co.
The preparation method of the water-based moisture-curable cold zinc acid and alkali resistant anticorrosive paint is the same as that of the example 3 except that self-made modified epoxy-acrylic resin emulsion is not needed, and the details are omitted.
Comparative example 2
This comparative example provides an aqueous moisture-curable cold zinc acid and alkali resistant anticorrosive paint similar to example 3, except that the organic anticorrosive enhancement solution was replaced with a 325 mesh mica iron oxide preservative of equivalent quality, available from new materials of ronaoko chemical industries, ltd.
The preparation method of the water-based moisture-curable cold zinc acid and alkali resistant anticorrosive paint is the same as that of example 3 except that self-made organic anticorrosive reinforcing liquid is not needed, and redundant description is omitted.
Comparative example 3
This comparative example provides an aqueous moisture-curable cold zinc acid and alkali resistant anticorrosive paint similar to example 3, except that the carboxylic acid vanillyl alcohol ester is replaced with a foamless multifunctional corrosion inhibitor DX506 of the same quality, purchased from Jining and chemical industries, inc.
The preparation method of the water-based moisture-curable cold zinc acid and alkali resistant anticorrosive paint is the same as that of example 3, and is not repeated.
Comparative example 4
This comparative example provides an aqueous moisture-curable cold zinc acid and alkali resistant anticorrosive coating similar to example 3 except that the mass fraction of the glycidyl fatty acid-acrylic acid modified epoxy resin emulsion was replaced with 80 parts.
The preparation method of the water-based moisture-curable cold zinc acid and alkali resistant anticorrosive paint is the same as that of example 3, and is not repeated.
Comparative example 5
This comparative example provides an aqueous moisture-curable cold zinc acid and alkali resistant anticorrosive paint similar to example 3, except that the amphiphilic zinc toughening emulsion was replaced with the universal cold zinc paint of equivalent quality, uni-5, available from henna ohui industrial paint inc.
The preparation method of the water-based moisture-curable cold zinc acid and alkali resistant anticorrosive paint is the same as that of example 3 except that self-made amphiphilic zinc toughening emulsion is not needed, and redundant description is omitted.
Performance testing
Performance tests were performed on the aqueous moisture-curable cold zinc acid and alkali resistant anticorrosive coatings provided in examples 1 to 5 and comparative examples 1 to 5, and the ZD800 epoxy zinc-rich coating (available from the company of the coating company of the double lion, tianjin).
(1) And (3) respectively scraping each coating on the surface of the cold-rolled steel plate by adopting a bar coater to prepare a coating, and visually observing the appearance of the coating after drying at room temperature.
(2) With reference to the standard GB/T9274-1988 "determination of liquid Medium resistance of paints and varnishes", the inner coating film of each paint 180d was tested for its ability to withstand 3.5wt% NaCl solution, 120h of each paint coating film was resistant to 10wt% NaOH solution, 10wt% H solution, respectively 2 SO 4 The solution, 10wt% NaCl resistance and water resistance are shown in Table 2.
(3) The flexibility of each coating film was tested with reference to the standard GB/T1731-1993 "film flexibility test", the adhesion of each coating film was tested with reference to the standard GB/T5210-2006 "paint and varnish pull-off method adhesion test", and the wet heat resistance of each coating film was tested with reference to the standard GB/T1740-2007, and the test results are shown in Table 2.
As can be seen from Table 2, the water-based moisture-curing cold zinc acid-base resistant anticorrosive paint provided by the invention has excellent heat and humidity resistance, acid-base resistance and corrosion resistance, can well meet the protection requirements of various facilities on moisture curing, acid-base resistance and corrosion resistance in a high-humidity and high-salinity environment, has acid resistance and alkali resistance far exceeding the national standard, and has obviously improved comprehensive performance compared with the existing water-based anticorrosive paint sold on the market.
In addition, as can be seen from the test results of comparative example 1 and example 3, the acid resistance, alkali resistance, flexibility, adhesive force, heat resistance, water resistance and salt fog resistance of the aqueous moisture-curable cold zinc acid-alkali resistant anticorrosive paint are all obviously reduced by adopting the commercial aqueous acrylic acid modified epoxy resin emulsion to replace the comparative example 1 of the modified epoxy-acrylic resin emulsion provided by the invention, which shows that the modified epoxy-acrylic resin emulsion provided by the invention is a key factor for improving the acid-alkali resistance, adhesive force, heat resistance, water resistance and corrosion resistance of the paint.
From the test results of comparative examples 2 to 3 and example 3, it can be seen that the alkali resistance, salt water resistance and salt fog resistance of the aqueous moisture-curable cold zinc acid and alkali-resistant anticorrosive paint of comparative example 3 after the replacement of the vanillyl carboxylate ester element are significantly reduced; in comparative example 2, the water-based moisture-curable cold zinc acid and alkali resistant anticorrosive paint with the organic anticorrosive reinforcing liquid replaced has reduced acid resistance, hardness, flexibility, water resistance and wet heat resistance. This further shows that the water-based paint with excellent acid resistance, alkali resistance, water resistance and corrosion resistance is obtained through the synergistic effect of the raw material components.
As can be seen from the test results of comparative example 4 and example 3, increasing the content of the glycidyl fatty acid-acrylic acid modified epoxy resin emulsion, instead, resulted in a decrease in the coating properties, which indicates that the present invention provides a water-based coating excellent in overall properties by the specific raw material components and the specific contents.
Table 2 results of the performance test of the combination of the examples, comparative examples and ZD800 epoxy zinc-rich paint
Effect example
According to 1.2-1.5 kg/m 3 The water-based moisture-curable cold zinc acid and alkali-resistant anticorrosive paint and the ZD800 epoxy zinc-rich paint (purchased from Tianjin double lion paint Co., ltd.) provided in examples 1 to 5 and comparative examples 1 to 5 were roll-coated on a concrete test block with a surface water-sprayed and wet, and after the concrete test block was completely cured, the performance index of the coating on the surface of the concrete was tested, and the test results are shown in table 3.
As can be seen from table 3, the concrete test pieces coated with the aqueous moisture-curable cold zinc acid and alkali resistant anticorrosive coatings of examples 1 to 5 have excellent acid resistance, alkali resistance, brine resistance and surface adhesion, and are significantly better than the ZD800 epoxy zinc-rich coating. This shows that the water-based moisture-curing cold zinc acid and alkali-resistant anticorrosive paint provided by the invention can protect concrete from acid, alkali and salt. The water-based moisture-curing cold zinc acid and alkali-resistant anticorrosive paint of comparative examples 1 to 5 has reduced acid resistance, alkali resistance, salt water resistance, surface adhesion and chloride ion permeation resistance, which further shows that the water-based moisture-curing cold zinc acid and alkali-resistant anticorrosive paint of the invention achieves unexpected moisture resistance, moisture curing, acid and alkali resistance and corrosion resistance through the synergistic effect of the components. The test piece obtained by coating the water-based moisture-cured cold zinc acid and alkali-resistant anticorrosive paint provided by the invention on concrete has excellent alkali resistance, acid resistance, surface adhesion, water resistance and corrosion resistance; the water-based moisture-cured cold zinc acid and alkali-resistant anticorrosive paint has obvious moisture resistance and moisture curing characteristics, can effectively protect metal substrates from being corroded under the conditions of high salt, high humidity and high heat, can isolate alkali aggregate reaction among concrete acid, alkali and salt components on a concrete base surface, avoids pulverization and falling off of the concrete base surface, and prolongs the service life of a concrete building.
Table 3 results of the overall performance test of examples, comparative examples and ZD800 epoxy zinc-rich paint applied to concrete surfaces
In conclusion, the water-based moisture-curing cold zinc acid-base-resistant anticorrosive paint provided by the invention remarkably improves the acid resistance, alkali resistance, flexibility, adhesive force, moisture and heat resistance, water resistance and salt fog resistance of the existing water-based paint through the synergistic effect among the components of the modified epoxy-acrylic resin emulsion, the amphiphilic zinc-containing toughening emulsion, the carboxylic vanillyl alcohol ester essence, the organic anti-corrosion reinforcing liquid and the like, can be subjected to one-time film-forming curing, overcomes the bottleneck problem that the existing paint cannot achieve moisture environment curing, acid and alkali resistance, high permeability and corrosion resistance in a coordinated and unified manner, realizes curing under a humid base surface high-humidity environment, and has important significance in preventing structural damage of building groups and maintaining durability of building facilities.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, or alternatives falling within the spirit and principles of the invention.
Claims (10)
1. The water-based moisture-cured cold zinc acid and alkali resistant anticorrosive paint is characterized by comprising the following raw materials in parts by weight: 50-70 parts of modified epoxy-acrylic resin emulsion, 20-30 parts of amphiphilic zinc-containing toughening emulsion, 5-10 parts of organic anti-corrosion reinforcing liquid, 0.5-1 part of carboxylic acid vanillyl alcohol ester extract, 18-33 parts of inorganic filler, 11.5-26 parts of auxiliary agent and 15-40 parts of water; wherein,
The modified epoxy-acrylic resin emulsion comprises the following raw materials in percentage by mass: 33.5 to 52 percent of glycidyl fatty acid-acrylic acid modified epoxy resin emulsion, 17.5 to 31 percent of first emulsifier, 12.5 to 29 percent of acrylic monomer, 4 to 8.5 percent of functional monomer, 1 to 4.5 percent of buffer solution, 1.5 to 6.5 percent of water, 1.5 to 4.5 percent of first initiator and 0.05 to 0.25 percent of first catalyst;
the glycidyl fatty acid-acrylic acid modified epoxy resin emulsion comprises the following raw materials in percentage by mass: 14 to 33.5 percent of glycidyl fatty acid ester, 43 to 66.5 percent of first epoxy resin, 3 to 9.5 percent of acrylic ester, 0.05 to 0.5 percent of second catalyst, 3 to 9.5 percent of isophorone diisocyanate, 2 to 8 percent of water, 4.5 to 10 percent of second emulsifier and 0.1 to 0.5 percent of buffer solution.
2. The aqueous moisture-curable cold zinc acid and alkali resistant anticorrosive coating according to claim 1, wherein the glycidyl fatty acid ester is at least one of glycidyl acrylate, glycidyl palmitate, glycidyl linoleate, polypropylene glycol diglycidyl ether diacrylate or triglycidyl isocyanurate; and/or
The acrylic ester is at least one of amino polyethylene glycol methacrylate, 2-amino ethyl methacrylate, hydroxypropyl acrylate or hydroxyethyl acrylate; and/or
The acrylic monomer is at least two of polyethylene glycol monomethyl ether acrylate, 2-hydroxy-3-phenoxypropyl acrylate, isobornyl methacrylate, methacrylamide, furfuryl methacrylate or ethylene glycol dimethacrylate; and/or
The functional monomer is at least two of styrene, dicyclopentadienyloxyethyl methacrylate, (2R) -2-N-fluorenylmethoxycarbonyl amino-2-methyl-6-heptenoic acid, 3, 5-dihydroxy-6-heptenoic acid, 4-pentenoic acid, sodium methacrylate or 2-methyl-2-pentenoic acid; and/or
The first epoxy resin is bisphenol A type epoxy resin or bisphenol F type epoxy resin; and/or
The first catalyst is at least one of ion exchange resin or p-toluenesulfonic acid; and/or
The second catalyst is at least one of N, N-dimethylbenzylamine, dibutyl tin dilaurate, triethylamine, tetramethyl ethylenediamine or boron trifluoride diethyl ether; and/or
The first emulsifier is at least one of castor oil polyoxyethylene ether, trihydroxy polyoxypropylene ether, nonylphenol polyoxyethylene ether, laurinol polyoxyethylene ether, cetyl alcohol polyoxyethylene ether or isooctyl alcohol polyoxyethylene ether; and/or
The second emulsifier is at least one of sorbitan monooleate, coconut oil fatty acid diethanolamide, glycol polyoxyethylene ether or alkylphenol polyoxyethylene; and/or
The buffer solution is at least one of ammonia water, potassium bicarbonate water solution, sodium dihydrogen phosphate water solution, disodium hydrogen phosphate water solution, ammonium bicarbonate water solution, sodium carbonate water solution or potassium carbonate water solution with the mass concentration of 4.5-5.5%; and/or
The first initiator is at least one of ammonium persulfate aqueous solution, potassium persulfate aqueous solution, azodiisobutyronitrile aqueous solution or diisopropyl peroxydicarbonate aqueous solution with the mass concentration of 0.1-0.15%; and/or
The epoxy value of the modified epoxy-acrylic resin emulsion is 0.11-0.14 mol/100g; and/or
The carboxylic acid vanillyl ester is any two of octanoic acid vanillyl ester, vanillyl nonanamide capsaicin, nordihydrocapsaicin or dihydrocapsaicin ester; and/or
The inorganic filler comprises the following components in parts by weight: 2-5 parts of calcium polyphosphate aluminum powder, 10-15 parts of quartz powder, 3-8 parts of polyamide wax powder and 3-5 parts of flaky aluminum powder; and/or
The auxiliary agent comprises the following components in parts by weight: 3 to 5 parts of dispersing agent, 1 to 2 parts of thickening agent, 3 to 10 parts of quick-drying agent, 1 to 3 parts of leveling agent, 3 to 5 parts of wetting agent and 0.5 to 1 part of defoaming agent.
3. The aqueous moisture-curable cold zinc acid and alkali resistant anticorrosive paint as claimed in claim 1, wherein the preparation method of the modified epoxy-acrylic resin emulsion comprises the following steps:
step 1, weighing raw materials according to a designed proportion, uniformly mixing glycidyl fatty acid ester, first epoxy resin, acrylic ester, second catalyst, isophorone diisocyanate and second emulsifier at 80-90 ℃ for polymerization reaction; adding a buffer solution to adjust to neutrality to obtain glycidyl fatty acid-acrylic acid modified epoxy resin emulsion;
step 2, dissolving acrylic ester monomers in a first part of buffer solution to obtain an acrylic ester monomer solution;
step 3, dissolving the functional monomer into a second part of buffer solution to obtain a functional monomer solution;
step 4, uniformly mixing 50-70wt% of the acrylic ester monomer solution, a first emulsifier, the glycidyl fatty acid-acrylic acid modified epoxy resin emulsion and water, and simultaneously dropwise adding 50-70wt% of the functional monomer solution and 8-15wt% of a first initiator at 65-75 ℃; simultaneously dripping the rest acrylic ester monomer solution, the functional monomer solution and the first initiator at the temperature of 85-95 ℃ for heat preservation reaction; adding a first catalyst to perform esterification reaction; and adding the rest buffer solution to adjust to neutrality to obtain the modified epoxy-acrylic resin emulsion.
4. The water-based moisture-curable cold zinc acid and alkali resistant anticorrosive paint as claimed in claim 1, wherein the amphiphilic zinc-containing toughening emulsion comprises the following raw materials in percentage by mass: 2.5 to 9 percent of vegetable linoleic acid, 1 to 4.5 percent of vinyl alkoxy silane, 2.5 to 9 percent of N-methylol acrylamide, 2.5 to 9 percent of 3-methyl heptenoic acid, 1.5 to 7 percent of sodium methacrylate hydroxypropyl sulfonate, 0.05 to 0.3 percent of second initiator, 11 to 25 percent of second epoxy resin, 0.2 to 0.9 percent of aprotic acid solution, 26.5 to 47.5 percent of zinc powder, 1.5 to 4.5 percent of rice bran wax, 2.5 to 9 percent of second emulsifier, 1.5 to 4.5 percent of gamma-glycidyl ether oxypropyl trimethoxy silane, 5.5 to 16.5 percent of water and 2.5 to 9 percent of thickening dispersant.
5. The aqueous moisture-curable cold zinc acid and alkali resistant anticorrosive coating according to claim 4, wherein the second epoxy resin is at least one of epoxy resin E44 or epoxy resin E51; and/or
The second initiator is at least one of ammonium persulfate aqueous solution, potassium persulfate aqueous solution, benzoyl peroxide aqueous solution or diisopropyl peroxydicarbonate aqueous solution with the mass concentration of 0.1-0.2%; and/or
The aprotic acid solution is boron trifluoride acetic acid complex aqueous solution with the concentration of 0.2-0.6 mol/L; and/or
The thickening dispersant is acrylic acid (ester)/palm oleyl alcohol polyether-25 acrylic ester copolymer.
6. The aqueous moisture-curable cold zinc acid and alkali resistant anticorrosive paint as claimed in claim 4 or 5, wherein the preparation method of the amphiphilic zinc toughening emulsion comprises the following steps:
weighing the raw materials according to the designed proportion, and uniformly mixing part of the second emulsifier, water, plant-based linoleic acid, vinyl alkoxy silane, N-methylol acrylamide, 3-methyl heptenoic acid and sodium methacrylate at the temperature of 70-80 ℃; dripping a second initiator to perform polymerization reaction; adding a second epoxy resin and an aprotic acid solution, and carrying out esterification reaction at 100-120 ℃; zinc powder, rice bran wax, the rest of second emulsifier, gamma-glycidol ether oxypropyl trimethoxy silane and thickening dispersant are added and uniformly mixed to obtain the amphiphilic zinc-containing toughening emulsion.
7. The aqueous moisture-curable cold zinc acid and alkali resistant anticorrosive paint as claimed in claim 1, wherein the organic anticorrosive reinforcing liquid comprises the following raw materials in percentage by mass: 5.5 to 14.5 percent of 4-aminodiphenylamine, 4.5 to 11.5 percent of 2,2' -disulfonic acid benzidine, 20 to 39 percent of phosphoric acid aqueous solution, 33.5 to 57.5 percent of second initiator, 0.1 to 1.5 percent of 1, 2-benzisothiazolin-3-one, 0.5 to 3 percent of gamma-glycidol ether oxypropyl trimethoxy silane and 4.5 to 11.5 percent of flaky graphite suspension.
8. The aqueous moisture-curable cold zinc acid and alkali resistant anticorrosive paint according to claim 7, wherein the concentration of the phosphoric acid aqueous solution is 5-8 mol/L; and/or
The mass concentration of the flaky graphite suspension is 20% -30%.
9. The aqueous moisture-curable cold zinc acid and alkali resistant anticorrosive paint as claimed in claim 7 or 8, wherein the preparation method of the organic anticorrosive reinforcing liquid comprises the following steps:
weighing the raw materials according to the designed proportion, dissolving 4-aminodiphenylamine and 2,2' -disulfonic acid benzidine in phosphoric acid aqueous solution, adding scaly graphite suspension, and uniformly mixing; dripping a third initiator at 0-5 ℃ to perform polymerization reaction; and (3) regulating the pH value to be between 5 and 6, adding 1, 2-benzisothiazolin-3-one and gamma-glycidol ether oxypropyl trimethoxy silane for grafting reaction, filtering, washing and drying to obtain the organic anti-corrosion reinforcing liquid.
10. Use of the aqueous moisture-curable cold zinc acid and alkali resistant anticorrosive paint according to any one of claims 1 to 9 in the corrosion protection of metal building facilities.
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CN117946569B (en) * | 2024-03-25 | 2024-05-24 | 广州翔铭环保新材料有限公司 | Preparation method of water-based environment-friendly anticorrosive paint |
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