CN114014984A - Microgel concrete surface reinforcing agent and preparation method thereof - Google Patents
Microgel concrete surface reinforcing agent and preparation method thereof Download PDFInfo
- Publication number
- CN114014984A CN114014984A CN202111321914.4A CN202111321914A CN114014984A CN 114014984 A CN114014984 A CN 114014984A CN 202111321914 A CN202111321914 A CN 202111321914A CN 114014984 A CN114014984 A CN 114014984A
- Authority
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- China
- Prior art keywords
- microgel
- parts
- organic
- manganese
- concrete surface
- Prior art date
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- Pending
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- 239000004567 concrete Substances 0.000 title claims abstract description 79
- 239000012744 reinforcing agent Substances 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 14
- 239000011572 manganese Substances 0.000 claims abstract description 14
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 13
- 239000011651 chromium Substances 0.000 claims abstract description 13
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract description 12
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000010936 titanium Substances 0.000 claims abstract description 10
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 10
- 150000002696 manganese Chemical class 0.000 claims abstract description 9
- 150000003608 titanium Chemical class 0.000 claims abstract description 9
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000011777 magnesium Substances 0.000 claims abstract description 8
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 8
- 239000000178 monomer Substances 0.000 claims description 42
- 238000006243 chemical reaction Methods 0.000 claims description 41
- 239000000839 emulsion Substances 0.000 claims description 36
- 238000010438 heat treatment Methods 0.000 claims description 21
- 239000008367 deionised water Substances 0.000 claims description 20
- 229910021641 deionized water Inorganic materials 0.000 claims description 20
- 239000003995 emulsifying agent Substances 0.000 claims description 20
- 238000003756 stirring Methods 0.000 claims description 14
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical group [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 12
- 239000003623 enhancer Substances 0.000 claims description 11
- -1 sodium fatty acid Chemical class 0.000 claims description 10
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 8
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 claims description 8
- 239000003999 initiator Substances 0.000 claims description 8
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 7
- DCKVFVYPWDKYDN-UHFFFAOYSA-L oxygen(2-);titanium(4+);sulfate Chemical group [O-2].[Ti+4].[O-]S([O-])(=O)=O DCKVFVYPWDKYDN-UHFFFAOYSA-L 0.000 claims description 7
- 229910000348 titanium sulfate Inorganic materials 0.000 claims description 7
- 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 6
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 6
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 6
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims description 6
- 239000013522 chelant Substances 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 229940099596 manganese sulfate Drugs 0.000 claims description 6
- 235000007079 manganese sulphate Nutrition 0.000 claims description 6
- 239000011702 manganese sulphate Substances 0.000 claims description 6
- SQQMAOCOWKFBNP-UHFFFAOYSA-L manganese(II) sulfate Chemical compound [Mn+2].[O-]S([O-])(=O)=O SQQMAOCOWKFBNP-UHFFFAOYSA-L 0.000 claims description 6
- 229920000642 polymer Polymers 0.000 claims description 6
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 6
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 6
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Substances [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 claims description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 5
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 5
- 229940004916 magnesium glycinate Drugs 0.000 claims description 5
- AACACXATQSKRQG-UHFFFAOYSA-L magnesium;2-aminoacetate Chemical compound [Mg+2].NCC([O-])=O.NCC([O-])=O AACACXATQSKRQG-UHFFFAOYSA-L 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- LHJPJULTVBDZBN-WCCKRBBISA-N (2s)-2-amino-4-methylsulfanylbutanoic acid;magnesium Chemical compound [Mg].CSCC[C@H](N)C(O)=O LHJPJULTVBDZBN-WCCKRBBISA-N 0.000 claims description 4
- OQVYMXCRDHDTTH-UHFFFAOYSA-N 4-(diethoxyphosphorylmethyl)-2-[4-(diethoxyphosphorylmethyl)pyridin-2-yl]pyridine Chemical group CCOP(=O)(OCC)CC1=CC=NC(C=2N=CC=C(CP(=O)(OCC)OCC)C=2)=C1 OQVYMXCRDHDTTH-UHFFFAOYSA-N 0.000 claims description 4
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 claims description 4
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 4
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 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
- 239000006172 buffering agent Substances 0.000 claims description 4
- PYXSPTLIBJZHQW-UHFFFAOYSA-K chromium(3+);propanoate Chemical compound [Cr+3].CCC([O-])=O.CCC([O-])=O.CCC([O-])=O PYXSPTLIBJZHQW-UHFFFAOYSA-K 0.000 claims description 4
- GMSCBRSQMRDRCD-UHFFFAOYSA-N dodecyl 2-methylprop-2-enoate Chemical compound CCCCCCCCCCCCOC(=O)C(C)=C GMSCBRSQMRDRCD-UHFFFAOYSA-N 0.000 claims description 4
- 230000001804 emulsifying effect Effects 0.000 claims description 4
- 229940071125 manganese acetate Drugs 0.000 claims description 4
- UOGMEBQRZBEZQT-UHFFFAOYSA-L manganese(2+);diacetate Chemical compound [Mn+2].CC([O-])=O.CC([O-])=O UOGMEBQRZBEZQT-UHFFFAOYSA-L 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
- WSZOLRPXRPIUPK-WCCKRBBISA-N (2s)-2-amino-4-methylsulfanylbutanoic acid;chromium Chemical compound [Cr].CSCC[C@H](N)C(O)=O WSZOLRPXRPIUPK-WCCKRBBISA-N 0.000 claims description 3
- BZVFZBYIWNIHHL-WCCKRBBISA-N (2s)-2-amino-4-methylsulfanylbutanoic acid;manganese Chemical compound [Mn].CSCC[C@H](N)C(O)=O BZVFZBYIWNIHHL-WCCKRBBISA-N 0.000 claims description 3
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 claims description 3
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 3
- 229940046374 chromium picolinate Drugs 0.000 claims description 3
- UBFMILMLANTYEU-UHFFFAOYSA-H chromium(3+);oxalate Chemical compound [Cr+3].[Cr+3].[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O UBFMILMLANTYEU-UHFFFAOYSA-H 0.000 claims description 3
- GJYSUGXFENSLOO-UHFFFAOYSA-N chromium;pyridine-2-carboxylic acid Chemical compound [Cr].OC(=O)C1=CC=CC=N1.OC(=O)C1=CC=CC=N1.OC(=O)C1=CC=CC=N1 GJYSUGXFENSLOO-UHFFFAOYSA-N 0.000 claims description 3
- 239000007822 coupling agent Substances 0.000 claims description 3
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 claims description 3
- SUPCQIBBMFXVTL-UHFFFAOYSA-N ethyl 2-methylprop-2-enoate Chemical compound CCOC(=O)C(C)=C SUPCQIBBMFXVTL-UHFFFAOYSA-N 0.000 claims description 3
- UEGPKNKPLBYCNK-UHFFFAOYSA-L magnesium acetate Chemical compound [Mg+2].CC([O-])=O.CC([O-])=O UEGPKNKPLBYCNK-UHFFFAOYSA-L 0.000 claims description 3
- 235000011285 magnesium acetate Nutrition 0.000 claims description 3
- 239000011654 magnesium acetate Substances 0.000 claims description 3
- 229940069446 magnesium acetate Drugs 0.000 claims description 3
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 claims description 3
- 229920002818 (Hydroxyethyl)methacrylate Polymers 0.000 claims description 2
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-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
- 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
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-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
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 claims description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims description 2
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 2
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims description 2
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims description 2
- 235000011130 ammonium sulphate Nutrition 0.000 claims description 2
- 239000000872 buffer Substances 0.000 claims description 2
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 2
- 229930195729 fatty acid Natural products 0.000 claims description 2
- 239000000194 fatty acid Substances 0.000 claims description 2
- ANISOHQJBAQUQP-UHFFFAOYSA-N octyl prop-2-enoate Chemical compound CCCCCCCCOC(=O)C=C ANISOHQJBAQUQP-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
- WDHYRUBXLGOLKR-UHFFFAOYSA-N phosphoric acid;prop-2-enoic acid Chemical compound OC(=O)C=C.OP(O)(O)=O WDHYRUBXLGOLKR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- UMHKOAYRTRADAT-UHFFFAOYSA-N [hydroxy(octoxy)phosphoryl] octyl hydrogen phosphate Chemical compound CCCCCCCCOP(O)(=O)OP(O)(=O)OCCCCCCCC UMHKOAYRTRADAT-UHFFFAOYSA-N 0.000 claims 1
- 239000011258 core-shell material Substances 0.000 claims 1
- 229920000847 nonoxynol Polymers 0.000 claims 1
- 125000002734 organomagnesium group Chemical group 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 abstract description 9
- 239000002184 metal Substances 0.000 abstract description 9
- 230000035699 permeability Effects 0.000 abstract description 7
- 150000001875 compounds Chemical class 0.000 abstract description 4
- 239000002253 acid Substances 0.000 abstract description 3
- 230000032683 aging Effects 0.000 abstract description 3
- 239000003513 alkali Substances 0.000 abstract description 3
- 239000012466 permeate Substances 0.000 abstract description 3
- 230000003487 anti-permeability effect Effects 0.000 abstract description 2
- 229920006037 cross link polymer Polymers 0.000 abstract description 2
- 229910010272 inorganic material Inorganic materials 0.000 abstract description 2
- 239000011147 inorganic material Substances 0.000 abstract description 2
- 230000005476 size effect Effects 0.000 abstract description 2
- 238000004945 emulsification Methods 0.000 description 8
- 239000000428 dust Substances 0.000 description 5
- 150000001413 amino acids Chemical class 0.000 description 4
- 239000002344 surface layer Substances 0.000 description 4
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 3
- 230000001413 cellular effect Effects 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- RCEAADKTGXTDOA-UHFFFAOYSA-N OS(O)(=O)=O.CCCCCCCCCCCC[Na] Chemical compound OS(O)(=O)=O.CCCCCCCCCCCC[Na] RCEAADKTGXTDOA-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 239000012496 blank sample Substances 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 230000000536 complexating effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- PBOSTUDLECTMNL-UHFFFAOYSA-N lauryl acrylate Chemical compound CCCCCCCCCCCCOC(=O)C=C PBOSTUDLECTMNL-UHFFFAOYSA-N 0.000 description 2
- 150000002736 metal compounds Chemical class 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- IGFHQQFPSIBGKE-UHFFFAOYSA-N Nonylphenol Natural products CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 125000004423 acyloxy group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- APSBXTVYXVQYAB-UHFFFAOYSA-M sodium docusate Chemical group [Na+].CCCCC(CC)COC(=O)CC(S([O-])(=O)=O)C(=O)OCC(CC)CCCC APSBXTVYXVQYAB-UHFFFAOYSA-M 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229910000349 titanium oxysulfate Inorganic materials 0.000 description 1
Classifications
-
- 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
- C08F263/00—Macromolecular compounds obtained by polymerising monomers on to polymers of esters of unsaturated alcohols with saturated acids as defined in group C08F18/00
- C08F263/02—Macromolecular compounds obtained by polymerising monomers on to polymers of esters of unsaturated alcohols with saturated acids as defined in group C08F18/00 on to polymers of vinyl esters with monocarboxylic acids
- C08F263/04—Macromolecular compounds obtained by polymerising monomers on to polymers of esters of unsaturated alcohols with saturated acids as defined in group C08F18/00 on to polymers of vinyl esters with monocarboxylic acids on to polymers of vinyl acetate
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5007—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with salts or salty compositions, e.g. for salt glazing
- C04B41/5014—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with salts or salty compositions, e.g. for salt glazing containing sulfur in the anion, e.g. sulfides
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/60—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
- C04B41/61—Coating or impregnation
- C04B41/65—Coating or impregnation with inorganic materials
-
- 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
- C08F265/00—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00
- C08F265/04—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00 on to polymers of esters
- C08F265/06—Polymerisation of acrylate or methacrylate esters on to polymers thereof
Abstract
The invention discloses a microgel concrete surface reinforcing agent and a preparation method thereof, wherein the reinforcing agent comprises 920-970 parts of shell-core structure microgel, 0.5-4 parts of titanium salt, 2-18 parts of organic titanium, 0.8-4 parts of organic chromium, 0.1-1 part of manganese salt, 0.2-2 parts of organic manganese and 0.1-1.5 parts of organic magnesium. The invention utilizes the microgel with a shell-core structure to load enhanced organic metal and compound, can improve the permeability of the concrete reinforcing agent and effectively improve the surface strength of the concrete. The microgel has a cross-linked structure, so that the microgel has the characteristics of high strength, high temperature resistance, aging resistance, acid and alkali resistance and the like of a cross-linked polymer, and simultaneously has the rigidity and stability of an inorganic material, and simultaneously, the nano size effect of the microgel can quickly permeate into the internal structure of concrete, and can seal micro cracks and micropores on the surface of the concrete, prevent water and corrosive media from invading, and improve the anti-permeability of the concrete.
Description
Technical Field
The invention relates to the field of concrete admixtures, in particular to a microgel concrete surface reinforcing agent and a preparation method thereof.
Background
Concrete is the most widely used building material, and the concrete building material can not be separated from high-rise buildings, high-speed rails, water conservancy and hydropower, industrial and civil buildings and the like, but the phenomena of cellular pitted surface, dust, exposed stones, low surface strength and the like on the surface of the concrete are common phenomena. The deterioration of the surface performance of the concrete seriously affects the service performance and the durability of the concrete, so that the service life of the concrete is greatly shortened, a great deal of repair and reconstruction of building engineering is inevitably caused, and the resource is greatly wasted. Therefore, concrete surface reinforcing agents should be produced.
Why does the concrete surface have cellular pitted surface, ash, dust, exposed stone, and strength not meeting the design requirements? The inventor finds out through earnest research that the main reasons are as follows: (1) the cement manufacturer reduces the clinker in order to make profits inappropriate, thereby influencing the hydration reaction of the concrete surface layer; (2) the improper reduction of cement dosage by concrete manufacturers reduces the active substances on the surface layer of the concrete; (3) the surface strength of the concrete is low due to segregation, bleeding and the like in the concrete construction process; (4) the maintenance in the construction is not in place, so that the surface hydration is not sufficient, and the strength can not be fully exerted; (5) the surface of the concrete is degraded by physical, chemical and biological erosion of the surrounding environment in the service process.
The performance of the concrete surface layer becomes one of important factors influencing the durability of concrete materials, and research on improving or improving the performance of the concrete surface and prolonging the service life of the concrete surface layer is one of effective ways for realizing energy conservation, emission reduction, resource conservation and environmental protection in the low-carbon economic era. The inventor researches and discovers that the common modes for treating the honeycomb pitted surface, the ash, the dust, the exposed stone and the lower surface strength of the concrete surface comprise: (1) the mortar is plastered, the apparent defect of the concrete is made up in a traditional mode, but the problem of strength cannot be solved; (2) the epoxy resin surface treating agent can solve the problems of appearance defects and short-time strength and can not solve the problem of long-term durability of concrete; (3) the inorganic penetrant has limited penetrating capacity and little effect on the concrete surface eroded by physics, chemistry and biology. Therefore, it is very important to develop a concrete surface reinforcing agent which can effectively increase the wear resistance and chemical resistance of the concrete surface and repair the problems of cellular pitted surface, dust and dust on the concrete surface.
Disclosure of Invention
The invention aims to provide a microgel concrete surface reinforcing agent and a preparation method thereof, and the microgel concrete surface reinforcing agent can improve the permeability of the concrete surface and effectively improve the surface strength of the concrete.
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:
a microgel concrete surface reinforcing agent is characterized by comprising 920-970 parts of shell-core structure microgel, 0.5-4 parts of titanium salt, 2-18 parts of organic titanium, 0.8-4 parts of organic chromium, 0.1-1 part of manganese salt, 0.2-2 parts of organic manganese and 0.1-1.5 parts of organic magnesium.
Preferably, the shell-core structure microgel comprises 85 to 120 parts of core active monomer, 24 to 45 parts of shell active monomer, 0.4 to 2.4 parts of buffering agent, 0.4 to 2.4 parts of initiator, 1.5 to 3.8 parts of emulsifier and 260 to 350 parts of deionized water.
Preferably, the nuclear active monomer is one or more of vinyl acetate, methyl acrylate, methyl methacrylate, ethyl methacrylate, butyl acrylate, styrene, vinyl chloride, butadiene, vinylidene chloride, acrylonitrile or acrylic acid.
Preferably, the shell active monomer is one or more of lauryl methacrylate, butyl acrylate, ethyl acrylate, methacrylic acid, acrylic acid, hydroxyethyl acrylate, hydroxypropyl acrylate, n-octyl acrylate, isooctyl methacrylate, hydroxyethyl methacrylate, phosphate acrylate or lauryl methacrylate.
Preferably, the buffer is sodium bicarbonate.
Preferably, the initiator is one or more of sodium persulfate, potassium persulfate, ammonium persulfate, hydrogen peroxide, azobisisobutyramidine hydrochloride or azobisisobutyrimidazoline hydrochloride.
Preferably, the emulsifier is one or more of sodium dodecyl sulfate, sodium dodecyl benzene sulfonate, sodium fatty acid, alkylphenol polyoxyethylene or nonylphenol polyoxyethylene.
Preferably, the titanium salt is one or more of titanium sulfate or titanyl ammonium sulfate. .
Preferably, the organic titanium is one or more of organic titanium polymer, organic titanium chelate, tetra alkoxy titanate, titanate chelate, isopropyl tri (dioctyl pyrophosphato acyloxy) titanate or titanate coupling agent.
Preferably, the organic chromium is one or more of chromium propionate, chromium methionine, chromium picolinate, chromium oxalate or chromium amino acid.
Preferably, the manganese salt is one or more of potassium manganate or manganese sulfate.
Preferably, the organic manganese is one or more of manganese acetate, manganese methionine or manganese amino acid chelate.
Preferably, the organic magnesium is one or more of magnesium glycinate, magnesium acetate or magnesium methionine.
A preparation method of a microgel concrete surface reinforcing agent comprises the following steps:
s1: putting deionized water and part of emulsifier into a stirred reaction kettle, heating to 50-60 ℃, putting a nuclear active monomer after the emulsifier is completely dissolved, and emulsifying for 30 minutes to obtain a nuclear monomer pre-emulsion;
s2: putting deionized water, a certain amount of titanium salt, organic chromium, manganese salt, organic manganese and organic magnesium into a stirring reaction kettle, heating to 70-80 ℃, simultaneously and respectively dripping the prepared initiator solution with a certain amount of 2% and the nuclear monomer pre-emulsion into the reaction kettle for 30 minutes, and continuously preserving heat for 1 hour after finishing dripping to obtain the seed emulsion.
S3: putting deionized water and part of emulsifier into a stirred reaction kettle, heating to 50-60 ℃, putting shell active monomer after the emulsifier is completely dissolved, and emulsifying for 30 minutes to obtain shell monomer pre-emulsion;
s4: putting the core monomer pre-emulsion and the buffering agent into a stirring reaction kettle, heating to 70-80 ℃, simultaneously and respectively dripping a prepared certain amount of 2% initiator solution and the shell monomer pre-emulsion into the reaction kettle for 30 minutes, after the dripping is finished, keeping the temperature for reaction for 30 minutes, heating to 90 ℃, continuing to react for 1 hour, cooling to 40-50 ℃ after the finishing, adding titanium salt, organic chromium, manganese salt, organic manganese and organic magnesium, reacting for 1 hour, adding organic titanium after the finishing, and stirring for 20 minutes to obtain the microgel concrete surface reinforcing agent.
The mechanism of the invention is as follows:
the invention utilizes the microgel with a shell-core structure to load enhanced organic metal and compound, can improve the permeability of the concrete reinforcing agent and effectively improve the surface strength of the concrete. The microgel has a cross-linked structure, so that the microgel has the characteristics of high strength, high temperature resistance, aging resistance, acid and alkali resistance and the like of a cross-linked polymer, and simultaneously has the rigidity and stability of an inorganic material, and simultaneously, the nano size effect of the microgel can quickly permeate into the internal structure of concrete, and can seal micro cracks and micropores on the surface of the concrete, prevent water and corrosive media from invading, and improve the anti-permeability of the concrete. Not all functional groups of the microgel which participate in polymerization can participate in the formation of a network cross-linked structure, and some unreacted groups, such as carboxyl, hydroxyl, epoxy, phosphate, and ester groups, can form stable complexes with organic metal or metal ions. Manganese, titanium and chromium belong to high-strength metals, have wear resistance, corrosion resistance, oxidation resistance, high strength and super hydrophobicity, and organic metal compounds are grafted into a polymer in a grafting mode or metal salts are introduced into a microgel reticular structure in a complexing mode, so that the high strength and permeability of organic metals can be exerted, and the surface strength and wear resistance of concrete can be enhanced.
The invention has the beneficial effects that:
the microgel concrete surface reinforcing agent provided by the invention has high permeability, can deeply penetrate into concrete to improve the permeability of the concrete surface, fills in internal micropores, and can obviously improve the surface strength of the concrete by 3-10 Mpa.
Detailed Description
The technical solution of the present invention will be described in further detail with reference to specific examples, but the present invention is not limited to the following technical solutions.
Example 1
100 parts of deionized water and 1.2 parts of sodium dodecyl sulfate are put into a stirred reaction kettle, the temperature is raised to 60 ℃, after the emulsifier is completely dissolved, 60 parts of vinyl acetate and 25 parts of methyl acrylate are put into the kettle, and the nuclear monomer pre-emulsion is obtained after emulsification for 30 minutes. 50 parts of deionized water, 0.3 part of titanium sulfate, 0.5 part of chromium methionine, 0.4 part of potassium manganate, 0.1 part of manganese methionine and 0.5 part of magnesium glycinate are put into a stirred reaction kettle, the temperature is raised to 75 ℃, 6 parts of 2% sodium persulfate solution and nuclear monomer pre-emulsion which are prepared are respectively dripped into the reaction kettle at the same time, the dripping time is 30 minutes, and the heat preservation is continued for 1 hour after the dripping is finished, so that the seed emulsion is obtained. Then, 100 parts of deionized water and 0.3 part of lauryl sodium sulfate are put into a stirring reaction kettle, the temperature is raised to 50 ℃, 20 parts of methacrylic acid and 10 parts of lauryl acrylate are put into the kettle after the emulsifier is completely dissolved, and the shell monomer pre-emulsion is obtained after emulsification for 30 minutes. Putting the core monomer pre-emulsion and 0.4 part of sodium bicarbonate into a stirred reaction kettle, heating to 70 ℃, simultaneously and respectively dripping the rest 14 parts of 2% sodium persulfate and the shell monomer pre-emulsion into the reaction kettle for 30 minutes, after the dripping is finished, keeping the temperature, reacting for 30 minutes, heating to 90 ℃, continuing to react for 1 hour, cooling to 40 ℃, adding 0.2 part of titanium sulfate, 0.3 part of chromium propionate, 0.6 part of potassium manganate, 0.1 part of amino acid chelated manganese and 1 part of magnesium glycinate, reacting for 1 hour, after the finishing, adding 2 parts of organic titanium polymer, and stirring for 20 minutes to obtain the microgel concrete surface reinforcing agent.
Example 2
150 parts of deionized water and 3 parts of sodium dodecyl sulfate are put into a stirred reaction kettle, the temperature is raised to 50 ℃, 80 parts of butyl acrylate and 40 parts of ethyl methacrylate are put into the kettle after the emulsifier is completely dissolved, and the nuclear monomer pre-emulsion is obtained after emulsification for 30 minutes. Putting 82 parts of deionized water, 2 parts of titanium sulfate, 2 parts of chromium oxalate, 0.05 part of manganese sulfate, 0.8 part of manganese acetate and 0.5 part of magnesium acetate into a stirred reaction kettle, heating to 70 ℃, simultaneously and respectively dropwise adding 16 parts of 2% potassium persulfate solution and the nuclear monomer pre-emulsion into the reaction kettle for 30 minutes, and continuously preserving heat for 1 hour after dropwise adding is completed to obtain the seed emulsion. Then, 70 parts of deionized water and 0.8 part of sodium dodecyl benzene sulfonate are put into a stirred reaction kettle, the temperature is raised to 60 ℃, 35 parts of acrylic acid, 5 parts of acrylic phosphate and 5 parts of n-butyl acrylate are put into the kettle after the emulsifier is completely dissolved, and the shell monomer pre-emulsion is obtained after emulsification for 30 minutes. Putting the core monomer pre-emulsion and 2.4 parts of sodium bicarbonate into a stirring reaction kettle, heating to 80 ℃, simultaneously and respectively dropwise adding 34 parts of 2% azodiisobutyramidine hydrochloride and the shell monomer pre-emulsion into the reaction kettle for 30 minutes, after dropwise addition is completed, keeping the temperature for reaction for 30 minutes, heating to 90 ℃, continuing to react for 1 hour, cooling to 50 ℃ after the completion, adding 2 parts of titanium sulfate, 2 parts of chromium propionate, 0.05 part of manganese sulfate, 1.2 parts of manganese acetate and 0.5 part of magnesium glycinate, reacting for 1 hour, after the completion, adding 10 parts of titanate coupling agent, and stirring for 20 minutes to obtain the microgel concrete surface reinforcing agent.
Example 3
100 parts of deionized water and 2 parts of alkylphenol polyoxyethylene are put into a stirred reaction kettle, the temperature is raised to 55 ℃, 50 parts of methyl methacrylate, 40 parts of acrylic acid and 10 parts of styrene are put into the kettle after the emulsifier is completely dissolved, and the nuclear monomer pre-emulsion is obtained after emulsification for 30 minutes. Adding 60 parts of deionized water, 1 part of ammonium titanyl sulfate, 1 part of chromium picolinate, 0.3 part of manganese sulfate, 0.6 part of amino acid chelated manganese and 0.05 part of magnesium methionine into a stirred reaction kettle, heating to 80 ℃, simultaneously and respectively dropwise adding 50 parts of 2% prepared hydrogen peroxide solution and nuclear monomer pre-emulsion into the reaction kettle for 30 minutes, and continuously preserving heat for 1 hour after dropwise adding is completed to obtain the seed emulsion. Then, 80 parts of deionized water and 0.3 part of sodium dodecyl sulfate are put into a stirring reaction kettle, the temperature is raised to 55 ℃, 15 parts of hydroxyethyl acrylate and 9 parts of acrylic acid are put into the kettle after the emulsifier is completely dissolved, and the shell monomer pre-emulsion is obtained after emulsification for 30 minutes. Putting the core monomer pre-emulsion and 1 part of sodium bicarbonate into a stirred reaction kettle, heating to 75 ℃, simultaneously and respectively dropwise adding the prepared 70 parts of 2% potassium persulfate and shell monomer pre-emulsion into the reaction kettle for 30 minutes, after dropwise addition, keeping the temperature for reaction for 30 minutes, heating to 90 ℃, continuing to react for 1 hour, cooling to 45 ℃, adding 1.2 parts of titanium sulfate, 1 part of amino acid chromium, 0.2 part of manganese sulfate, 0.4 part of amino acid chelated manganese and 0.05 part of magnesium methionine, reacting for 1 hour, after finishing, adding 18 parts of tetraalkoxy titanate, and stirring for 20 minutes to obtain the microgel concrete surface reinforcing agent.
Example 4
100 parts of deionized water and 1.2 parts of sodium dodecyl sulfate are put into a stirred reaction kettle, the temperature is raised to 60 ℃, after the emulsifier is completely dissolved, 60 parts of vinyl acetate and 25 parts of methyl acrylate are put into the kettle, and the nuclear monomer pre-emulsion is obtained after emulsification for 30 minutes. And (2) adding 50 parts of deionized water into a stirred reaction kettle, heating to 75 ℃, simultaneously and respectively dropwise adding the prepared 6 parts of 2% sodium persulfate solution and the prepared nuclear monomer pre-emulsion into the reaction kettle for 30 minutes, and continuously preserving heat for 1 hour after dropwise adding is finished to obtain the seed emulsion. Then, 100 parts of deionized water and 0.3 part of lauryl sodium sulfate are put into a stirring reaction kettle, the temperature is raised to 50 ℃, 20 parts of methacrylic acid and 10 parts of lauryl acrylate are put into the kettle after the emulsifier is completely dissolved, and the shell monomer pre-emulsion is obtained after emulsification for 30 minutes. And (2) putting the core monomer pre-emulsion and 0.4 part of sodium bicarbonate into a stirring reaction kettle, heating to 70 ℃, simultaneously and respectively dripping the rest of the prepared 14 parts of 2% sodium persulfate and shell monomer pre-emulsion into the reaction kettle for 30 minutes, after the dripping is finished, keeping the temperature for reaction for 30 minutes, heating to 90 ℃, continuing to react for 1 hour, cooling to 40 ℃ after the finishing, reacting for 1 hour, and after the finishing, continuing to stir for 20 minutes to obtain the microgel concrete surface reinforcing agent.
And (3) detecting the performance of the microgel concrete surface reinforcing agent by a rebound method by referring to JGJ-T23-2011 technical specification for detecting the compressive strength of concrete by the rebound method. The test blocks were 150 × 300mm concrete blocks after 56 days of molding. The blank was painted with the same amount of water.
TABLE 1 concrete surface Resilience Strength data
And (4) conclusion: from the comparison data of the blank sample and examples 1-4, it can be seen that the microgel concrete surface enhancer prepared in the invention has increased resilience under both natural curing conditions and curing room conditions compared to the blank sample. Wherein, the difference between the example 4 and the examples 1-3 is that the rebound value of 28d is increased by 2-3MPa and is 2-7MPa lower than that of the examples 1-3 because the organic metal compound is grafted into the polymer or the metal salt is introduced into the microgel reticular structure in a complexing way. The rebound increase values of examples 1 to 3 tended to increase with the increase in curing time, while the rebound increase values of examples 4 hardly increased after 7 d. The microgel loaded enhanced organic metal and compound with the shell-core structure can improve the permeability of the concrete reinforcing agent and effectively improve the surface strength of the concrete. The independent microgel has a crosslinking structure, so the microgel has the characteristics of high strength, high temperature resistance, aging resistance, acid and alkali resistance and the like of a crosslinking polymer, the surface strength of concrete can be improved to a certain degree, and the loaded organic metal and compound can quickly permeate into the internal structure of the concrete, so that microcracks and micropores on the surface of the concrete are sealed, and the stable increase of the strength of the concrete is ensured.
Claims (12)
1. A microgel concrete surface reinforcing agent is characterized by comprising 920-containing 970 parts of shell-core microgel, 0.5-4 parts of titanium salt, 2-18 parts of organic titanium, 0.8-4 parts of organic chromium, 0.1-1 part of manganese salt, 0.2-2 parts of organic manganese and 0.1-1.5 parts of organic magnesium;
the titanium salt is titanium sulfate and/or titanyl ammonium sulfate; the manganese salt is potassium manganate and/or manganese sulfate.
2. The microgel concrete surface enhancer as claimed in claim 1, wherein the microgel of the core-shell structure comprises 85-120 parts of core reactive monomer, 24-45 parts of shell reactive monomer, 0.4-2.4 parts of buffer, 0.4-2.4 parts of initiator, 1.5-3.8 parts of emulsifier and 260-350 parts of deionized water.
3. The microgel concrete surface enhancer as claimed in claim 2, wherein the core reactive monomer is one or more of vinyl acetate, methyl acrylate, methyl methacrylate, ethyl methacrylate, butyl acrylate, styrene, vinyl chloride, butadiene, vinylidene chloride, acrylonitrile or acrylic acid.
4. The microgel concrete surface enhancer as claimed in claim 2, wherein the shell reactive monomer is one or more of lauryl methacrylate, butyl acrylate, ethyl acrylate, methacrylic acid, acrylic acid, hydroxyethyl acrylate, hydroxypropyl acrylate, n-octyl acrylate, isooctyl methacrylate, hydroxyethyl methacrylate, phosphate acrylate or lauryl methacrylate.
5. The microgel concrete surface enhancer as claimed in claim 2, wherein the buffering agent is sodium bicarbonate.
6. The microgel concrete surface enhancer as claimed in claim 2, wherein the initiator is one or more of sodium persulfate, potassium persulfate, ammonium persulfate, hydrogen peroxide, azobisisobutyramidine hydrochloride or azobisisobutyrimidazoline hydrochloride.
7. The microgel concrete surface enhancer as claimed in claim 2, wherein the emulsifier is one or more of sodium dodecyl sulfate, sodium dodecylbenzene sulfonate, sodium fatty acid, alkylphenol ethoxylates or nonylphenol ethoxylates.
8. The microgel concrete surface enhancer as claimed in any one of claims 1 to 7, wherein the organotitanium is one or more of an organotitanium polymer, an organotitanium chelate, a tetraalkoxystanate, a titanate chelate, isopropyltris (dioctylpyrophosphate) titanate or a titanate coupling agent.
9. The microgel concrete surface enhancer as claimed in any one of claims 1 to 7, wherein the organic chromium is one or more of chromium propionate, chromium methionine, chromium picolinate, chromium oxalate or chromium amino acid.
10. The organic manganese is one or more of manganese acetate, manganese methionine or manganese amino acid chelate.
11. A microgel concrete surface enhancer according to any one of claims 1 to 7, wherein the organomagnesium is one or more of magnesium glycinate, magnesium acetate or magnesium methionine.
12. A method for preparing a microgel concrete surface enhancer as claimed in any one of claims 1 to 11, comprising the steps of:
s1, putting deionized water and part of emulsifier into a stirred reaction kettle, heating to 50-60 ℃, putting nuclear active monomer after the emulsifier is completely dissolved, and emulsifying for 30 minutes to obtain nuclear monomer pre-emulsion;
s2, putting deionized water, a certain amount of titanium salt, organic chromium, manganese salt, organic manganese and organic magnesium into a stirred reaction kettle, heating to 70-80 ℃, simultaneously and respectively dripping the prepared initiator solution with a certain amount of 2% and the nuclear monomer pre-emulsion into the reaction kettle for 30 minutes, and continuously preserving heat for 1 hour after dripping is finished to obtain seed emulsion;
s3, putting deionized water and part of emulsifier into a stirred reaction kettle, heating to 50-60 ℃, putting shell active monomer after the emulsifier is completely dissolved, and emulsifying for 30 minutes to obtain shell monomer pre-emulsion;
s4, putting the core monomer pre-emulsion and the buffering agent into a stirring reaction kettle, heating to 70-80 ℃, simultaneously and respectively dripping a certain amount of 2% initiator solution and the shell monomer pre-emulsion into the reaction kettle for 30 minutes, after the dripping is finished, keeping the temperature for reaction for 30 minutes, heating to 90 ℃, continuing to react for 1 hour, cooling to 40-50 ℃ after the finishing, adding titanium salt, organic chromium, manganese salt, organic manganese and organic magnesium, reacting for 1 hour, adding organic titanium after the finishing, and stirring for 20 minutes to obtain the microgel concrete surface reinforcing agent.
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| CN115403318A (en) * | 2022-09-29 | 2022-11-29 | 江苏先达建设集团有限公司 | Sponge urban road and construction method thereof |
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| CN104788605A (en) * | 2014-11-04 | 2015-07-22 | 江苏苏博特新材料股份有限公司 | Preparation method of concrete inner curing agent with core-shell structure |
| CN108178664A (en) * | 2018-01-29 | 2018-06-19 | 云南森博混凝土外加剂有限公司 | Concrete enhances renovation agent |
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| CN103601404A (en) * | 2013-11-07 | 2014-02-26 | 江苏博特新材料有限公司 | Concrete curing agent and preparation method thereof |
| CN104788605A (en) * | 2014-11-04 | 2015-07-22 | 江苏苏博特新材料股份有限公司 | Preparation method of concrete inner curing agent with core-shell structure |
| CN108178664A (en) * | 2018-01-29 | 2018-06-19 | 云南森博混凝土外加剂有限公司 | Concrete enhances renovation agent |
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