CN115197610A - Waterproof coating with high water resistance and high bonding strength and preparation method thereof - Google Patents
Waterproof coating with high water resistance and high bonding strength and preparation method thereof Download PDFInfo
- Publication number
- CN115197610A CN115197610A CN202210992777.5A CN202210992777A CN115197610A CN 115197610 A CN115197610 A CN 115197610A CN 202210992777 A CN202210992777 A CN 202210992777A CN 115197610 A CN115197610 A CN 115197610A
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- China
- Prior art keywords
- percent
- component
- waterproof coating
- water
- agent
- Prior art date
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 112
- 238000000576 coating method Methods 0.000 title claims abstract description 73
- 239000011248 coating agent Substances 0.000 title claims abstract description 68
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000000178 monomer Substances 0.000 claims abstract description 77
- 239000000839 emulsion Substances 0.000 claims abstract description 46
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 claims abstract description 42
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000000843 powder Substances 0.000 claims abstract description 33
- 239000011344 liquid material Substances 0.000 claims abstract description 28
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 25
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 23
- 229910000077 silane Inorganic materials 0.000 claims abstract description 23
- 239000002253 acid Substances 0.000 claims abstract description 22
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims abstract description 21
- 150000002148 esters Chemical class 0.000 claims abstract description 20
- 239000002562 thickening agent Substances 0.000 claims abstract description 19
- 239000001913 cellulose Substances 0.000 claims abstract description 18
- 229920002678 cellulose Polymers 0.000 claims abstract description 18
- OCKPCBLVNKHBMX-UHFFFAOYSA-N butylbenzene Chemical class CCCCC1=CC=CC=C1 OCKPCBLVNKHBMX-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000002270 dispersing agent Substances 0.000 claims abstract description 11
- 239000003755 preservative agent Substances 0.000 claims abstract description 11
- 230000002335 preservative effect Effects 0.000 claims abstract description 11
- 239000007864 aqueous solution Substances 0.000 claims abstract description 10
- 239000000080 wetting agent Substances 0.000 claims abstract description 10
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 9
- 239000004568 cement Substances 0.000 claims abstract description 9
- 239000000945 filler Substances 0.000 claims abstract description 7
- 230000000379 polymerizing effect Effects 0.000 claims abstract description 4
- CIHOLLKRGTVIJN-UHFFFAOYSA-N tert‐butyl hydroperoxide Chemical compound CC(C)(C)OO CIHOLLKRGTVIJN-UHFFFAOYSA-N 0.000 claims description 23
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 22
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical class C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims description 19
- 239000003995 emulsifying agent Substances 0.000 claims description 18
- -1 polydimethylsiloxane Polymers 0.000 claims description 16
- 239000003431 cross linking reagent Substances 0.000 claims description 13
- 235000010378 sodium ascorbate Nutrition 0.000 claims description 10
- PPASLZSBLFJQEF-RKJRWTFHSA-M sodium ascorbate Substances [Na+].OC[C@@H](O)[C@H]1OC(=O)C(O)=C1[O-] PPASLZSBLFJQEF-RKJRWTFHSA-M 0.000 claims description 10
- 229960005055 sodium ascorbate Drugs 0.000 claims description 10
- PPASLZSBLFJQEF-RXSVEWSESA-M sodium-L-ascorbate Chemical compound [Na+].OC[C@H](O)[C@H]1OC(=O)C(O)=C1[O-] PPASLZSBLFJQEF-RXSVEWSESA-M 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 9
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical group NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 8
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 239000003999 initiator Substances 0.000 claims description 8
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 claims description 7
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 7
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 claims description 7
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 claims description 7
- SOGAXMICEFXMKE-UHFFFAOYSA-N Butylmethacrylate Chemical compound CCCCOC(=O)C(C)=C SOGAXMICEFXMKE-UHFFFAOYSA-N 0.000 claims description 6
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 claims description 6
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims description 6
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 229920003063 hydroxymethyl cellulose Polymers 0.000 claims description 5
- 229940031574 hydroxymethyl cellulose Drugs 0.000 claims description 5
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 4
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 4
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 4
- 239000006185 dispersion Substances 0.000 claims description 4
- 230000001804 emulsifying effect Effects 0.000 claims description 4
- 239000000194 fatty acid Substances 0.000 claims description 4
- 229930195729 fatty acid Natural products 0.000 claims description 4
- 150000004665 fatty acids Chemical class 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000004576 sand Substances 0.000 claims description 4
- 239000010456 wollastonite Substances 0.000 claims description 4
- 229910052882 wollastonite Inorganic materials 0.000 claims description 4
- 239000005711 Benzoic acid Substances 0.000 claims description 3
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 3
- 235000010233 benzoic acid Nutrition 0.000 claims description 3
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical compound [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 3
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 claims description 3
- 239000011976 maleic acid Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 229940088644 n,n-dimethylacrylamide Drugs 0.000 claims description 3
- YLGYACDQVQQZSW-UHFFFAOYSA-N n,n-dimethylprop-2-enamide Chemical compound CN(C)C(=O)C=C YLGYACDQVQQZSW-UHFFFAOYSA-N 0.000 claims description 3
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 3
- 229920000058 polyacrylate Polymers 0.000 claims description 3
- 229920005646 polycarboxylate Polymers 0.000 claims description 3
- 229920001843 polymethylhydrosiloxane Polymers 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- 239000000243 solution Substances 0.000 claims description 3
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims description 3
- CHHHXKFHOYLYRE-UHFFFAOYSA-M 2,4-Hexadienoic acid, potassium salt (1:1), (2E,4E)- Chemical compound [K+].CC=CC=CC([O-])=O CHHHXKFHOYLYRE-UHFFFAOYSA-M 0.000 claims description 2
- LCPVQAHEFVXVKT-UHFFFAOYSA-N 2-(2,4-difluorophenoxy)pyridin-3-amine Chemical compound NC1=CC=CN=C1OC1=CC=C(F)C=C1F LCPVQAHEFVXVKT-UHFFFAOYSA-N 0.000 claims description 2
- NQSLZEHVGKWKAY-UHFFFAOYSA-N 6-methylheptyl 2-methylprop-2-enoate Chemical compound CC(C)CCCCCOC(=O)C(C)=C NQSLZEHVGKWKAY-UHFFFAOYSA-N 0.000 claims description 2
- DXPPIEDUBFUSEZ-UHFFFAOYSA-N 6-methylheptyl prop-2-enoate Chemical compound CC(C)CCCCCOC(=O)C=C DXPPIEDUBFUSEZ-UHFFFAOYSA-N 0.000 claims description 2
- BCZXFFBUYPCTSJ-UHFFFAOYSA-L Calcium propionate Chemical compound [Ca+2].CCC([O-])=O.CCC([O-])=O BCZXFFBUYPCTSJ-UHFFFAOYSA-L 0.000 claims description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 2
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 claims description 2
- OYHQOLUKZRVURQ-HZJYTTRNSA-N Linoleic acid Chemical compound CCCCC\C=C/C\C=C/CCCCCCCC(O)=O OYHQOLUKZRVURQ-HZJYTTRNSA-N 0.000 claims description 2
- 229920000877 Melamine resin Polymers 0.000 claims description 2
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 2
- 239000006004 Quartz sand Substances 0.000 claims description 2
- 229910000318 alkali metal phosphate Inorganic materials 0.000 claims description 2
- 150000001336 alkenes Chemical class 0.000 claims description 2
- 125000000217 alkyl group Chemical group 0.000 claims description 2
- 150000008051 alkyl sulfates Chemical class 0.000 claims description 2
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 2
- 229960004365 benzoic acid Drugs 0.000 claims description 2
- 235000010331 calcium propionate Nutrition 0.000 claims description 2
- 239000004330 calcium propionate Substances 0.000 claims description 2
- 239000006229 carbon black Substances 0.000 claims description 2
- 150000007942 carboxylates Chemical class 0.000 claims description 2
- 229920003086 cellulose ether Polymers 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 239000013530 defoamer Substances 0.000 claims description 2
- JBSLOWBPDRZSMB-FPLPWBNLSA-N dibutyl (z)-but-2-enedioate Chemical compound CCCCOC(=O)\C=C/C(=O)OCCCC JBSLOWBPDRZSMB-FPLPWBNLSA-N 0.000 claims description 2
- GMSCBRSQMRDRCD-UHFFFAOYSA-N dodecyl 2-methylprop-2-enoate Chemical compound CCCCCCCCCCCCOC(=O)C(C)=C GMSCBRSQMRDRCD-UHFFFAOYSA-N 0.000 claims description 2
- BEFDCLMNVWHSGT-UHFFFAOYSA-N ethenylcyclopentane Chemical compound C=CC1CCCC1 BEFDCLMNVWHSGT-UHFFFAOYSA-N 0.000 claims description 2
- 150000002191 fatty alcohols Chemical class 0.000 claims description 2
- 230000000977 initiatory effect Effects 0.000 claims description 2
- 235000020778 linoleic acid Nutrition 0.000 claims description 2
- OYHQOLUKZRVURQ-IXWMQOLASA-N linoleic acid Natural products CCCCC\C=C/C\C=C\CCCCCCCC(O)=O OYHQOLUKZRVURQ-IXWMQOLASA-N 0.000 claims description 2
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims description 2
- 239000002480 mineral oil Substances 0.000 claims description 2
- 235000010446 mineral oil Nutrition 0.000 claims description 2
- DGVVJWXRCWCCOD-UHFFFAOYSA-N naphthalene;hydrate Chemical compound O.C1=CC=CC2=CC=CC=C21 DGVVJWXRCWCCOD-UHFFFAOYSA-N 0.000 claims description 2
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims description 2
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 claims description 2
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 claims description 2
- 229920000570 polyether Polymers 0.000 claims description 2
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 2
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 2
- 229920001451 polypropylene glycol Polymers 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 2
- 235000010241 potassium sorbate Nutrition 0.000 claims description 2
- 239000004302 potassium sorbate Substances 0.000 claims description 2
- 229940069338 potassium sorbate Drugs 0.000 claims description 2
- 239000010453 quartz Substances 0.000 claims description 2
- SCPYDCQAZCOKTP-UHFFFAOYSA-N silanol Chemical compound [SiH3]O SCPYDCQAZCOKTP-UHFFFAOYSA-N 0.000 claims description 2
- 150000004760 silicates Chemical class 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 229920002545 silicone oil Polymers 0.000 claims description 2
- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical compound [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 claims description 2
- 235000010234 sodium benzoate Nutrition 0.000 claims description 2
- 239000004299 sodium benzoate Substances 0.000 claims description 2
- 229960003885 sodium benzoate Drugs 0.000 claims description 2
- HRZFUMHJMZEROT-UHFFFAOYSA-L sodium disulfite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])(=O)=O HRZFUMHJMZEROT-UHFFFAOYSA-L 0.000 claims description 2
- 229940001584 sodium metabisulfite Drugs 0.000 claims description 2
- 235000010262 sodium metabisulphite Nutrition 0.000 claims description 2
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Substances [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 claims description 2
- 235000010199 sorbic acid Nutrition 0.000 claims description 2
- 239000004334 sorbic acid Substances 0.000 claims description 2
- 229940075582 sorbic acid Drugs 0.000 claims description 2
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 2
- 230000008961 swelling Effects 0.000 claims description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 2
- 229920002554 vinyl polymer Polymers 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims 1
- 239000011414 polymer cement Substances 0.000 abstract description 16
- 238000010521 absorption reaction Methods 0.000 abstract description 10
- 230000007774 longterm Effects 0.000 abstract description 4
- 229920000642 polymer Polymers 0.000 description 14
- 238000006243 chemical reaction Methods 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 7
- 230000014759 maintenance of location Effects 0.000 description 7
- 238000007654 immersion Methods 0.000 description 6
- 230000002829 reductive effect Effects 0.000 description 6
- 238000002791 soaking Methods 0.000 description 6
- 239000002245 particle Substances 0.000 description 5
- 239000007888 film coating Substances 0.000 description 4
- 238000009501 film coating Methods 0.000 description 4
- 239000004816 latex Substances 0.000 description 4
- 229920000126 latex Polymers 0.000 description 4
- 239000003973 paint Substances 0.000 description 4
- 125000003368 amide group Chemical group 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000004078 waterproofing Methods 0.000 description 3
- 239000002174 Styrene-butadiene Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 2
- 230000003078 antioxidant effect Effects 0.000 description 2
- 235000006708 antioxidants Nutrition 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 230000036571 hydration Effects 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 230000036314 physical performance Effects 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 239000011115 styrene butadiene Substances 0.000 description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 description 2
- 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 description 1
- AEQDJSLRWYMAQI-UHFFFAOYSA-N 2,3,9,10-tetramethoxy-6,8,13,13a-tetrahydro-5H-isoquinolino[2,1-b]isoquinoline Chemical compound C1CN2CC(C(=C(OC)C=C3)OC)=C3CC2C2=C1C=C(OC)C(OC)=C2 AEQDJSLRWYMAQI-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 239000004971 Cross linker Substances 0.000 description 1
- 239000004908 Emulsion polymer Substances 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
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- 230000004075 alteration Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000001509 sodium citrate Substances 0.000 description 1
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 description 1
- 239000000176 sodium gluconate Substances 0.000 description 1
- 229940005574 sodium gluconate Drugs 0.000 description 1
- 235000012207 sodium gluconate Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D109/00—Coating compositions based on homopolymers or copolymers of conjugated diene hydrocarbons
- C09D109/06—Copolymers with styrene
- C09D109/08—Latex
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F236/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
- C08F236/02—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds
- C08F236/04—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated
- C08F236/10—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated with vinyl-aromatic monomers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/12—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polysiloxanes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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Abstract
The invention discloses a waterproof coating with high water resistance and high bonding strength and a preparation method thereof, belonging to the technical field of waterproof coatings. A waterproof coating with high water resistance and high bonding strength comprises a liquid material component A and a powder material component B, wherein the liquid material component A comprises the following components in percentage by mass based on the total mass of the component A: 75 to 90 percent of modified butylbenzene emulsion, 0.075 to 0.5 percent of dispersant, 0.1 to 0.8 percent of defoaming agent, 0.1 to 0.4 percent of wetting agent, 0.01 to 0.8 percent of preservative, 0 to 2 percent of water-based color paste, 1 to 2 percent of cellulose aqueous solution, 0.1 to 0.5 percent of thickening agent and 8 to 18 percent of water; the modified butylbenzene emulsion is obtained by polymerizing butadiene, styrene, olefine acid ester monomers, carboxylic acid monomers and silane monomers; the powder B comprises the following components in percentage by mass based on the total mass of the B component: 14 to 35 percent of cement, 64 to 85 percent of filler, 0.03 to 0.8 percent of water reducing agent and 0.03 to 0.5 percent of retarder; the weight ratio of the liquid material A component to the powder material B component is 1 (1.2-1.5). The waterproof coating disclosed by the invention is high in bonding strength and low in water absorption rate, and can solve the problem that the existing polymer cement waterproof coating cannot be applied to waterproof engineering of long-term immersed water environments such as underground engineering and the like.
Description
Technical Field
The invention belongs to the technical field of waterproof coatings, and particularly relates to a waterproof coating with high water resistance and high bonding strength and a preparation method thereof.
Background
The polymer cement waterproof paint is called JS waterproof paint for short, is a double-component water-based waterproof paint compounded by liquid materials (consisting of polymer emulsion and additives) and powder materials (cement, inorganic filler and additives), and is mainly suitable for indoor waterproofing of buildings, including bathroom, kitchen, balcony and other intermittent water immersion environments.
At present, most of the existing polymer cement waterproof coatings only meet the standard requirements of GB/T23445-2009, and cannot be applied to waterproof engineering of long-term water immersion due to limited water resistance. For example, after a polymer cement waterproof coating prepared from polyacrylate emulsion and ethylene-vinyl acetate copolymer emulsion is soaked in water for a long time, particularly in an alkaline building environment, the polymer cement waterproof coating can absorb water to swell and hydrolyze to different degrees, and absorb water to different degrees, so that the impermeability, tensile property and acid and alkali resistance of a coating film of the polymer cement waterproof coating are attenuated to different degrees, a waterproof system fails, and extremely serious damage is brought to a building. The reason that the coating film of the existing polymer cement waterproof coating is not waterproof is that the hydrolysis problem of the polymer cement waterproof coating, the water absorption problem of powder and the interface bonding between the polymer cement waterproof coating and the powder are not tight enough. After the conventional polymer cement waterproof coating is formed into a film, cement hydration is not complete, so that the interface combination of powder particles and a polymer cement waterproof coating structure is very limited, and the interface is easy to be invaded by water, so that the water resistance of the film is poor. The traditional polymer cement waterproof coating can generate hydrolysis phenomena of different degrees after a coating film is soaked in water, so that the coating film is expanded, the water absorption rate is very high, and the loss of physical properties such as tensile strength, elongation at break, bonding strength, impermeability and the like is serious.
In order to solve the problem that the conventional JS waterproof coating can not be applied to underground engineering or waterproof engineering soaked for a long time, chinese patent CN113943503A discloses a bi-component polymer cement-based waterproof coating, and a preparation method and application thereof. The coating comprises a component A and a component B, wherein the component A comprises the following components: butylbenzene emulsion, dispersant, defoamer, preservative, antioxidant, cross-linking agent and thickener, and optionally water; the component B is a cement-based component. The bi-component polymer water-based waterproof coating prepared from the bi-component polymer water-based waterproof coating composition provided by the invention has excellent impermeability, water resistance and tensile strength for immersion treatment, and can meet the requirements of the standard of GB 50108-2008 'underground engineering waterproof technical Specification'. But the waterproof coating has low tensile strength after film forming, the tensile strength retention rate is low after the waterproof coating is soaked for 7 days, and the water absorption rate is more than 4% after the waterproof coating is soaked for 7 days; in addition, the component A of the liquid material contains a water-insoluble antioxidant and a cross-linking agent, and the liquid material has nonuniform dispersion during preparation.
Disclosure of Invention
In view of the defects of the prior art, one of the purposes of the invention is to provide a waterproof coating with high water resistance and high bonding strength, which has good compatibility with a concrete base layer, high bonding strength and low water absorption rate, and can solve the problems that the existing polymer cement waterproof coating has poor water resistance and low bonding strength and cannot be applied to waterproof engineering of long-term soaking water environment such as underground engineering and the like.
In order to achieve the purpose, the specific technical scheme of the invention is as follows:
a waterproof coating with high water resistance and high bonding strength comprises a liquid material component A and a powder material component B, wherein,
the liquid material A component comprises the following components in percentage by mass based on the total mass of the liquid material A component: 75 to 90 percent of modified butylbenzene emulsion, 0.075 to 0.5 percent of dispersant, 0.1 to 0.8 percent of defoaming agent, 0.1 to 0.4 percent of wetting agent, 0.01 to 0.8 percent of preservative, 0 to 2 percent of water-based color paste, 1 to 2 percent of cellulose aqueous solution, 0.1 to 0.5 percent of thickening agent and 8 to 18 percent of water; the modified styrene-butadiene emulsion is obtained by polymerizing butadiene, styrene, an olefin monomer, a carboxylic acid monomer and a silane monomer;
the powder B comprises the following components in percentage by mass based on the total mass of the powder B: 14 to 35 percent of cement, 64 to 85 percent of filler, 0.03 to 0.8 percent of water reducing agent and 0.03 to 0.5 percent of retarder;
the weight ratio of the liquid material A component to the powder material B component is 1 (1.2-1.5).
The modified styrene-butadiene emulsion of the invention takes butadiene and styrene as main monomers, and obtains the coating with high water resistance and high bonding strength by introducing the olefinic acid ester monomer, the carboxylic acid monomer and the silane monomer in the polymerization process. The introduction of the olefinic acid ester monomer enables the polymer emulsion to have self-crosslinking performance, polymer molecules can be crosslinked and cured to form a network structure, the polymer molecule cohesion is improved, the film performance of the emulsion is improved, the film forming strength of the coating is further improved, and the water resistance performance and the physical performance of the polymer after soaking are improved. The introduction of carboxylic acid monomers can increase the polarity of the emulsion, thereby improving the bonding strength of the coating. The silane has good flexibility and hydrophobicity, and the introduction of the silane monomer enables a coating film formed after the coating is dried to have excellent hydrophobicity and flexibility, so that the water absorption of the waterproof coating film is reduced.
Preferably, the weight-average molecular weight of the modified styrene-butadiene emulsion is 1000-500000 daltons, the viscosity is 100-1000 MPa.s, the glass transition temperature is-50-20 ℃, and the solid content of the emulsion is 45-65%.
Preferably, the modified styrene-butadiene emulsion comprises the following components in percentage by mass: 25 to 40 percent of butadiene, 5 to 20 percent of styrene, 2 to 10 percent of olefine acid ester monomer, 2 to 10 percent of carboxylic acid monomer, 2 to 10 percent of silane monomer, 2 to 8 percent of cross-linking agent, 1 to 5 percent of emulsifying agent, 0.1 to 1 percent of initiating agent, 0.2 to 1 percent of reducing agent and 30 to 45 percent of water.
More preferably, the olefinic acid ester monomer comprises at least one of methyl methacrylate, methyl acrylate, ethyl acrylate, n-butyl methacrylate, dodecyl methacrylate, isooctyl acrylate, isooctyl methacrylate, vinyl versatate or dibutyl maleate; the carboxylic acid monomer comprises at least one of itaconic acid, maleic acid or linoleic acid; the silane monomer comprises at least one of polymethylhydrosiloxane, triethoxyvinylsilane or polydimethylsiloxane.
More preferably, the crosslinking agent is acrylamide or N, N-dimethylacrylamide. The amide group can react with hydroxyl and carboxyl in the polymer emulsion to crosslink the linear polymer to form a three-dimensional network structure, so that the molecular chain is difficult to move, and the tensile strength and the elongation at break of the coating film are improved while the viscosity of the emulsion is increased. In addition, after the amide group is added, most of the amide groups introduced into the side chains cover the surface of the latex particles, and the hydration layer around the latex particles thickens, so that the collision and the agglomeration of the latex particles are reduced, the number of the latex particles is relatively increased, and the conversion rate can be further improved.
Preferably, the emulsifier comprises at least one of carboxylate, sulfate, alkyl polyoxyethylene ether, polyoxypropylene ether, polyoxy ether, cellulose ether, or PVA.
Preferably, the initiator comprises at least one of ammonium persulfate, potassium persulfate, sodium persulfate, hydrogen peroxide or tert-butyl hydroperoxide (TBHP);
the reducing agent comprises at least one of FF6M, VC, sodium ascorbate or sodium metabisulfite.
Preferably, the dispersant comprises at least one of silicates, alkali metal phosphates, polyacrylates, or polycarboxylates;
the defoaming agent comprises at least one of polysiloxane, polyether modified silicone oil, mineral oil, organic silicon or lower alcohol;
the wetting agent comprises at least one of polyoxyethylene alkylphenol ether, polyoxyethylene fatty alcohol ether, alkyl sulfate, sulfonate, silanol, fatty acid or fatty acid ester sulfate;
the preservative comprises at least one of benzoic acid, sodium benzoate, sorbic acid, potassium sorbate or calcium propionate;
the thickener comprises at least one of polyurethane thickener, acrylic thickener or alkali swelling thickener;
the aqueous cellulose solution includes at least one of hydroxymethylcellulose, hydroxymethylpropylcellulose, cellulose MH60001P6, cellulose CP1425, cellulose 250HBR, or hydroxymethylcellulose ether.
Preferably, the aqueous color paste comprises at least one of phthalocyanine blue color paste, medium yellow color paste, carbon black color paste, phthalocyanine green color paste, yellow color paste or blue color paste.
Preferably, the filler comprises at least one of quartz sand, quartz powder, wollastonite powder, ground calcium carbonate, machine-made sand or river sand;
the water reducing agent comprises at least one of a naphthalene water reducing agent, a melamine high-efficiency water reducing agent or a polycarboxylic acid water reducing agent.
The invention also aims to provide a preparation method of the waterproof coating with high water resistance and high bonding strength, which comprises the following steps:
s1, preparing a modified styrene-butadiene emulsion: adding part of butadiene, styrene, an olefinic acid ester monomer, a carboxylic acid monomer, a silane monomer, a cross-linking agent, an emulsifying agent and water into a reactor, stirring and emulsifying, then heating to 75-85 ℃, simultaneously dropwise adding an initiator, a reducing agent and the rest of butadiene, styrene, olefinic acid ester monomer, carboxylic acid monomer, silane monomer, cross-linking agent, emulsifying agent and water, continuously reacting for 1-2 hours after dropwise adding is finished, discharging, and removing the residual monomer to obtain the modified styrene-butadiene emulsion;
s2, preparing a liquid material component A: adding the modified butylbenzene emulsion obtained in the step S1, a dispersing agent, a defoaming agent, a wetting agent, a preservative, a water-based color paste, a cellulose aqueous solution, a thickening agent and water into a dispersing machine to be uniformly dispersed, so as to obtain a liquid material A component;
s3, preparing a powder material B component: and adding cement, a filler, a water reducing agent and a retarder into a mixer, and uniformly stirring to obtain the powder B component.
In the step S1, the term "partial" means that butadiene accounting for 30-70% of the total weight of butadiene, styrene accounting for 30-70% of the total weight of styrene, an olefinic acid ester monomer accounting for 30-70% of the total weight of olefinic acid ester monomers, a carboxylic acid monomer accounting for 30-70% of the total weight of carboxylic acid monomers, a silane monomer accounting for 30-70% of the total weight of silane monomers, a crosslinking agent accounting for 30-70% of the total weight of crosslinking agents, an emulsifying agent accounting for 30-70% of the total weight of emulsifying agents, and water accounting for 30-70% of the total weight of water are added.
Compared with the prior art, the invention has the advantages that:
according to the invention, the olefine acid ester monomer, the carboxylic acid monomer and the silane monomer are introduced in the process of polymerizing the styrene-butadiene emulsion, wherein the introduction of the olefine acid ester monomer enables the polymer emulsion to have self-crosslinking performance, and polymer molecules can be crosslinked and cured to form a network structure, so that the cohesion of the polymer molecules is improved, the film performance of the emulsion is improved, the film forming strength of the coating is further improved, and the water resistance and the physical performance of the polymer after soaking are improved. The introduction of carboxylic acid monomers can increase the polarity of the emulsion, thereby improving the cohesive strength of the coating. The silane has good flexibility and hydrophobicity, and the introduction of the silane monomer enables a coating film formed after the coating is dried to have excellent hydrophobicity and flexibility, so that the water absorption of the waterproof coating film is reduced. The combined action of the acrylate monomer, the carboxylic acid monomer and the silane monomer is combined, so that the waterproof coating with high water resistance and high bonding strength is obtained, the water absorption rate of the waterproof coating after being soaked for 7 days is less than 4%, and the physical and mechanical property retention rate of the waterproof film after being soaked for 7 days is more than 90%.
Detailed Description
The technical solutions of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In the following examples and comparative examples, the retarder may be sodium gluconate, or may be one of sucrose, sodium citrate, or boric acid; the mass concentration of the cellulose aqueous solution was 7%.
Example 1
The embodiment provides a waterproof coating with high water resistance and high bonding strength, which comprises a liquid material A component and a powder material B component, wherein the liquid material A component comprises the following components in parts by weight: 900 parts of modified butylbenzene emulsion, 1.5 parts of dispersing agent, 7.2 parts of defoaming agent, 1.5 parts of wetting agent, 0.1 part of preservative, 9 parts of water-based color paste, 12.85 parts of cellulose aqueous solution, 1.8 parts of thickening agent and 120 parts of water; wherein the dispersant is polycarboxylate (NOPCALL LX-7), the defoaming agent is polysiloxane, the wetting agent is polyoxyethylene alkylphenol ether, the preservative is benzoic acid, the water-based color paste is phthalocyanine blue color paste, the cellulose aqueous solution is hydroxymethyl cellulose aqueous solution (viscosity is 400), and the thickening agent is acrylic thickening agent (SN-Thickener 636).
The powder B component comprises the following components in parts by weight: 1000 parts of 32.5 white portland cement, 2000 parts of 200-mesh wollastonite powder, 2000 parts of 325-mesh calcium carbonate, 2.5 parts of polycarboxylic acid water reducing agent (water reducing rate is 25%) and 2.5 parts of retarder;
the modified styrene-butadiene emulsion comprises the following raw materials in parts by weight: 875 parts of 1-3 butadiene, 250 parts of styrene, 84 parts of methyl methacrylate, 84 parts of itaconic acid, 84 parts of triethoxyvinylsilane, 100 parts of acrylamide, 100 parts of emulsifier EPN-287, 13.75 parts of initiator, 12.5 parts of reducing agent and 1125 parts of water.
The embodiment also provides a preparation method of the waterproof coating with high water resistance and high bonding strength, which comprises the following steps:
s1, preparing modified styrene-butadiene emulsion: firstly, adding 50 percent of preposed monomers (namely 437.5 parts of 1-3 butadiene, 125 parts of styrene, 42 parts of methyl methacrylate, 42 parts of itaconic acid, 42 parts of triethoxyvinylsilane, 50 parts of acrylamide, 50 parts of emulsifier EPN-287 and 562.5 parts of water) into a reaction kettle, and stirring and emulsifying; after the temperature is raised to 80 ℃, 6.875 parts of TBHP, 6.25 parts of sodium ascorbate and 50% of the total amount of post-monomer (namely 437.5 parts of 1-3 butadiene, 125 parts of styrene, 42 parts of methyl methacrylate, 42 parts of itaconic acid, 42 parts of triethoxyvinylsilane, 50 parts of acrylamide, 50 parts of emulsifier EPN-287 and 562.5 parts of water) are simultaneously dripped, the dripping time of the TBHP and the sodium ascorbate is 8 hours, the dripping time of the post-monomer is 15 hours, the reaction is continued for 1 hour after all the dripping is finished, and then the material is discharged; and after discharging, cooling the emulsion to 40 ℃, pouring the emulsion into a monomer residue removal reaction kettle, heating to 65 ℃, dropwise adding 6.875 parts of TBHP and 6.25 parts of sodium ascorbate, and removing the monomer residue for 3 hours to obtain the modified butylbenzene emulsion.
S2, preparing a liquid material component A: adding the modified butylbenzene emulsion obtained in the step S1, a dispersing agent, a defoaming agent, a wetting agent, a preservative, a water-based color paste, a cellulose aqueous solution, a thickening agent and water into a dispersing machine, and stirring and dispersing at the rotating speed of 800-1000 rpm/min for 20min to obtain a liquid material component A;
s3, preparing a powder B component: adding cement, wollastonite powder, calcium carbonate, a water reducing agent and a retarder into a V-shaped powder mixer, and stirring and dispersing for 10min at the rotating speed of 50-200 rpm/min to obtain a powder component B;
s4, preparing the waterproof coating: adding the component A of the liquid material obtained in the step S2 into a dispersion machine, and then adding the component B of the powder material obtained in the step S3, wherein the weight ratio of the component A of the liquid material to the component B of the powder material is 1.5; and adding water accounting for 15 percent of the weight of the liquid material A, pre-dispersing, and stirring for 5min in a high-speed dispersion machine at the rotating speed of 1200rpm/min to obtain the liquid material A.
Example 2
The waterproof coating with high water resistance and high bonding strength of the embodiment 2 is basically the same as the embodiment 1, except that the modified styrene-butadiene emulsion of the embodiment comprises the following components in parts by weight: 875 parts of 1-3 butadiene, 250 parts of styrene, 160 parts of n-butyl methacrylate, 160 parts of maleic acid, 160 parts of polydimethylsiloxane, 100 parts of acrylamide, 100 parts of an emulsifier EPN-287, 13.75 parts of an initiator TBHP, 12.5 parts of a reducing agent sodium ascorbate and 1125 parts of water.
Example 3
The waterproof coating with high water resistance and high bonding strength of the embodiment 3 is basically the same as the embodiment 1, except that the modified styrene-butadiene emulsion of the embodiment comprises the following components in parts by weight: 875 parts of 1-3 butadiene, 250 parts of styrene, 320 parts of methyl acrylate, 320 parts of linoleic acid, 320 parts of polymethylhydrosiloxane, 100 parts of N, N-dimethylacrylamide, 100 parts of emulsifier EPN-287, 13.75 parts of initiator TBHP and 12.5 parts of reducer sodium ascorbate.
Comparative example 1
The waterproof coating with high water resistance and high bonding strength of the comparative example 1 is basically the same as that of the example 1, and is characterized in that the modified styrene-butadiene emulsion in the component A of the liquid material in the example 1 is replaced by the common styrene-butadiene emulsion;
the common butylbenzene emulsion comprises the following components in parts by weight: 875 parts of 1-3 butadiene, 375 parts of styrene, 100 parts of emulsifier EPN-287, 13.75 parts of initiator TBHP, 12.5 parts of reducing agent EN and 1125 parts of water.
The preparation method of the common butylbenzene emulsion comprises the following steps: firstly, adding 50 percent of preposed monomers (namely 437.5 parts of 1-3 butadiene, 187.5 parts of styrene, 50 parts of emulsifier EPN-287 and 562.5 parts of water) in the total amount into a reaction kettle, stirring and emulsifying; after the temperature is raised to 80 ℃, 6.875 parts of TBHP, 6.25 parts of sodium ascorbate and 50% of the total amount of post-monomer (namely 437.5 parts of 1-3 butadiene, 187.5 parts of styrene, 50 parts of emulsifier EPN-287 and 562.5 parts of water) are simultaneously dripped, the dripping time of the TBHP and the sodium ascorbate is 8 hours, the dripping time of the post-monomer is 15 hours, the reaction is continued for 1 hour after all the dripping is finished, and then the material is discharged; and after discharging, cooling the emulsion to 40 ℃, pouring the emulsion into a monomer residue removal reaction kettle, heating to 65 ℃, dropwise adding 6.875 parts of TBHP and 6.25 parts of sodium ascorbate, and removing the monomer residue for 3 hours to obtain the butylbenzene emulsion.
That is, in contrast to example 1, the butadiene styrene polymer emulsion of this comparative example did not contain methyl methacrylate, itaconic acid, triethoxyvinylsilane, and crosslinker acrylamide.
Test examples
Preparing a coating film: the waterproof coatings of examples 1-3 and comparative example 1 are subjected to blade coating by a standard film coater to form a film, the preparation process of the sample comprises 2-3 times of film coating, the subsequent film coating is coated after the surface of the previous film coating is dried, and the time interval between the two film coatings is (12-24) h, so that the thickness of the sample reaches (1.5 +/-0.2) mm. And then placing the mixture into a standard curing room for curing for 96 hours, and then demolding, wherein the temperature (23 +/-2) DEG C and the relative humidity (50 +/-10)%, are used under the standard curing condition of a laboratory. And (3) treating the stripped sample in a drying oven at the temperature of 40 +/-2 ℃ for 48 hours in a mode that the back surface of the sample faces upwards, taking out the sample, placing the sample in a dryer, cooling the sample to room temperature, and then carrying out subsequent tests.
The physical and mechanical properties of the coating film are tested according to the related method of GB/T23445-2009 Polymer Cement waterproof paint, and the test results are shown in Table 1. The water resistance of the coating is tested according to GB 50108-2008 'waterproof technical Specification for underground engineering', and the test results are shown in Table 2.
TABLE 1 test results of physical and mechanical Properties
TABLE 2 Water resistance test results
| Test items | Example 1 | Example 2 | Example 3 | Comparative example 1 |
| Tensile Strength maintenance ratio after immersion in water for 7 d/%) | 92.45 | 102.13 | 95.92 | 79.71 |
| Percentage retention of elongation at break after immersion in water of 7 d% | 90.91 | 93.67 | 91.21 | 78.49 |
| Retention ratio of adhesive strength after immersion in water for 7 d/%) | 93.55 | 96.12 | 95.15 | 76.47 |
| The water impermeability is 0.3MPa,30min | 100 | 100 | 100 | 100 |
| Impermeability (mortar backing surface)/MPa | 92.75 | 95.86 | 93.33 | 79.68 |
As can be seen from the data in tables 1 and 2, the waterproof coatings prepared in examples 1 to 3 of the present invention have an extremely low water absorption rate, a high adhesive strength and excellent water resistance; the water absorption rate after soaking for 7 days is less than 4%, and the physical property retention rate of the waterproof membrane after soaking for 7 days is more than 90%, so that the problems of poor water resistance and low bonding strength of the conventional polymer cement waterproof coating are solved, and the waterproof coating can be applied to waterproofing in a long-term soaking environment, especially waterproofing in urban underground engineering construction. The excellent water resistance and high bonding strength of the material can completely meet the requirements of GB50108 underground waterproof engineering.
As can be seen from the comparison of examples 1 to 3, the tensile strength and the adhesive strength are increased and then decreased with the increase of the use amounts of the olefinic acid ester monomer, the carboxylic acid monomer and the silane monomer, because the further increase of the use amounts of the olefinic acid ester monomer, the carboxylic acid monomer and the silane monomer will decrease the mass ratio of the main monomers butadiene and styrene, resulting in the decrease of the tensile strength and the adhesive strength, and therefore the use amounts of the olefinic acid ester monomer, the carboxylic acid monomer and the silane monomer need to be within the range defined in the present invention, so as to have both excellent mechanical properties and water resistance.
Compared with the example 1, in the polymerization process of the comparative example 1, methyl methacrylate, itaconic acid, triethoxyvinylsilane and acrylamide as a crosslinking agent are not added, so that the tensile strength, the elongation at break, the bonding strength and other physical and mechanical properties of the waterproof film are reduced, the mechanical property retention rate of the waterproof film after being soaked in water for 7 days is obviously reduced, the retention rate is reduced to 76.47%, and the water resistance and the bonding property cannot be applied to the underground engineering soaked in water for a long time.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A waterproof coating with high water resistance and high bonding strength comprises a liquid material component A and a powder material component B, and is characterized in that,
the liquid material A component comprises the following components in percentage by mass based on the total mass of the liquid material A component: 75 to 90 percent of modified butylbenzene emulsion, 0.075 to 0.5 percent of dispersant, 0.1 to 0.8 percent of defoamer, 0.1 to 0.4 percent of wetting agent, 0.01 to 0.8 percent of preservative, 0 to 2 percent of water-based color paste, 1 to 2 percent of cellulose aqueous solution, 0.1 to 0.5 percent of thickener and 8 to 18 percent of water; the modified styrene-butadiene emulsion is obtained by polymerizing butadiene, styrene, an olefin monomer, a carboxylic acid monomer and a silane monomer;
the powder B component comprises the following components in percentage by mass based on the total mass of the powder B component: 14 to 35 percent of cement, 64 to 85 percent of filler, 0.03 to 0.8 percent of water reducing agent and 0.03 to 0.5 percent of retarder;
the weight ratio of the liquid material A component to the powder material B component is 1 (1.2-1.5).
2. The waterproof coating with high water resistance and high bonding strength as claimed in claim 1, wherein the modified styrene-butadiene emulsion comprises the following components in percentage by mass: 25 to 40 percent of butadiene, 5 to 20 percent of styrene, 2 to 10 percent of olefine acid ester monomer, 2 to 10 percent of carboxylic acid monomer, 2 to 10 percent of silane monomer, 2 to 8 percent of cross-linking agent, 1 to 5 percent of emulsifying agent, 0.1 to 1 percent of initiating agent, 0.2 to 1 percent of reducing agent and 30 to 45 percent of water.
3. The waterproof coating with high water resistance and high bonding strength as claimed in claim 2, wherein the preparation method of the modified styrene-butadiene emulsion comprises the following steps: adding part of butadiene, styrene, an olefinic acid ester monomer, a carboxylic acid monomer, a silane monomer, a cross-linking agent, an emulsifying agent and water into a reactor, stirring and emulsifying, then heating to 75-85 ℃, simultaneously dripping an initiator, a reducing agent and the rest of butadiene, styrene, olefinic acid ester monomer, carboxylic acid monomer, silane monomer, cross-linking agent, emulsifying agent and water, continuously reacting for 1-2 h after dripping is finished, discharging, and removing the residual monomer to obtain the modified styrene-butadiene emulsion.
4. The waterproof coating material with high water resistance and high bonding strength according to claim 2, wherein the olefinic acid ester monomer comprises at least one of methyl methacrylate, methyl acrylate, ethyl acrylate, n-butyl methacrylate, dodecyl methacrylate, isooctyl acrylate, isooctyl methacrylate, vinyl versatate or dibutyl maleate; the carboxylic acid monomer comprises at least one of itaconic acid, maleic acid or linoleic acid; the silane monomer comprises at least one of polymethylhydrosiloxane, triethoxyvinylsilane or polydimethylsiloxane; the cross-linking agent is acrylamide or N, N-dimethylacrylamide.
5. The waterproof coating material having high water resistance and high adhesive strength as claimed in claim 2, wherein the emulsifier comprises at least one of carboxylate, sulfate, alkyl polyoxyethylene ether, polyoxypropylene ether, polyoxy ether, cellulose ether or PVA.
6. The waterproof coating material with high water resistance and high bonding strength as claimed in claim 2, wherein the initiator comprises at least one of ammonium persulfate, potassium persulfate, sodium persulfate, hydrogen peroxide or TBHP;
the reducing agent comprises at least one of FF6M, VC, sodium ascorbate or sodium metabisulfite.
7. The waterproof coating material with high water resistance and high bonding strength as claimed in claim 1, wherein the dispersant comprises at least one of silicates, alkali metal phosphates, polyacrylates or polycarboxylates;
the defoaming agent comprises at least one of polysiloxane, polyether modified silicone oil, mineral oil, organic silicon or lower alcohol;
the wetting agent comprises at least one of polyoxyethylene alkylphenol ether, polyoxyethylene fatty alcohol ether, alkyl sulfate, sulfonate, silanol, fatty acid or fatty acid ester sulfate;
the preservative comprises at least one of benzoic acid, sodium benzoate, sorbic acid, potassium sorbate or calcium propionate;
the thickener comprises at least one of polyurethane thickener, acrylic thickener or alkali swelling thickener;
the aqueous cellulose solution includes at least one of hydroxymethyl cellulose, hydroxymethyl propyl cellulose, cellulose MH60001P6, cellulose CP1425, cellulose 250HBR, or hydroxymethyl cellulose ether.
8. The waterproof coating material with high water resistance and high bonding strength as claimed in claim 1, wherein the aqueous color paste comprises at least one of phthalocyanine blue color paste, medium yellow color paste, carbon black color paste, phthalocyanine green color paste, yellow color paste or blue color paste.
9. The waterproof coating material with high water resistance and high bonding strength as claimed in claim 1, wherein the filler comprises at least one of quartz sand, quartz powder, wollastonite powder, ground calcium carbonate, machine-made sand or river sand;
the water reducing agent comprises at least one of a naphthalene water reducing agent, a melamine high-efficiency water reducing agent or a polycarboxylic acid water reducing agent.
10. The method for preparing the waterproof coating material with high water resistance and high bonding strength as claimed in any one of claims 1 to 9, characterized by comprising the steps of:
s1, preparing a liquid material component A: adding the modified styrene-butadiene emulsion, a dispersing agent, a defoaming agent, a wetting agent, a preservative, aqueous color paste, a cellulose aqueous solution, a thickening agent and water into a dispersing machine for uniform dispersion to obtain a liquid material A component;
s2, preparing a powder material B component: adding cement, a filler, a water reducing agent and a retarder into a mixer, and uniformly stirring to obtain a powder B component;
and S3, mixing the liquid material component A and the powder material component B according to the weight ratio of 1 (1.2-1.5) to obtain the waterproof coating with high water resistance and high bonding strength.
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