CN113122123A - Non-asphalt-based spraying fast-setting waterborne polyurethane waterproof coating and preparation method thereof - Google Patents
Non-asphalt-based spraying fast-setting waterborne polyurethane waterproof coating and preparation method thereof Download PDFInfo
- Publication number
- CN113122123A CN113122123A CN202110437502.0A CN202110437502A CN113122123A CN 113122123 A CN113122123 A CN 113122123A CN 202110437502 A CN202110437502 A CN 202110437502A CN 113122123 A CN113122123 A CN 113122123A
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- Prior art keywords
- component
- parts
- asphalt
- waterproof coating
- setting
- Prior art date
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- Pending
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- 238000000576 coating method Methods 0.000 title claims abstract description 103
- 239000011248 coating agent Substances 0.000 title claims abstract description 98
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 91
- 239000004814 polyurethane Substances 0.000 title claims abstract description 91
- 238000005507 spraying Methods 0.000 title claims abstract description 71
- 239000010426 asphalt Substances 0.000 title claims abstract description 65
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 75
- 229920003009 polyurethane dispersion Polymers 0.000 claims abstract description 36
- 229910052751 metal Inorganic materials 0.000 claims abstract description 22
- 239000002184 metal Substances 0.000 claims abstract description 22
- 239000012266 salt solution Substances 0.000 claims abstract description 21
- 239000002131 composite material Substances 0.000 claims abstract description 18
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000003063 flame retardant Substances 0.000 claims abstract description 16
- 239000000080 wetting agent Substances 0.000 claims abstract description 15
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 13
- 239000008367 deionised water Substances 0.000 claims abstract description 13
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 13
- 239000002562 thickening agent Substances 0.000 claims abstract description 13
- 239000000701 coagulant Substances 0.000 claims abstract description 12
- 239000000945 filler Substances 0.000 claims abstract description 12
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 11
- 230000003712 anti-aging effect Effects 0.000 claims abstract description 10
- 239000002318 adhesion promoter Substances 0.000 claims abstract description 9
- 239000002270 dispersing agent Substances 0.000 claims abstract description 9
- 239000000049 pigment Substances 0.000 claims abstract description 9
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- 230000002335 preservative effect Effects 0.000 claims abstract description 9
- 239000003381 stabilizer Substances 0.000 claims abstract description 9
- 239000000654 additive Substances 0.000 claims abstract description 8
- 230000000996 additive effect Effects 0.000 claims abstract description 8
- 230000001954 sterilising effect Effects 0.000 claims abstract description 4
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 4
- 239000000839 emulsion Substances 0.000 claims description 26
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 24
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 24
- 229920000570 polyether Polymers 0.000 claims description 24
- 229920000642 polymer Polymers 0.000 claims description 24
- 239000004593 Epoxy Substances 0.000 claims description 22
- 238000003756 stirring Methods 0.000 claims description 22
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 21
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- 239000002994 raw material Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 11
- 239000003973 paint Substances 0.000 claims description 11
- NOKSMMGULAYSTD-UHFFFAOYSA-N [SiH4].N=C=O Chemical compound [SiH4].N=C=O NOKSMMGULAYSTD-UHFFFAOYSA-N 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 10
- 238000004806 packaging method and process Methods 0.000 claims description 10
- 239000000243 solution Substances 0.000 claims description 10
- 125000000129 anionic group Chemical group 0.000 claims description 9
- 239000006185 dispersion Substances 0.000 claims description 9
- 229920001084 poly(chloroprene) Polymers 0.000 claims description 9
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 8
- 238000000227 grinding Methods 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 8
- 150000001718 carbodiimides Chemical class 0.000 claims description 6
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- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims description 6
- 229960001763 zinc sulfate Drugs 0.000 claims description 6
- 229910000368 zinc sulfate Inorganic materials 0.000 claims description 6
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims description 5
- 230000000844 anti-bacterial effect Effects 0.000 claims description 5
- 229920002432 poly(vinyl methyl ether) polymer Polymers 0.000 claims description 5
- 239000001509 sodium citrate Substances 0.000 claims description 5
- 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 claims description 5
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 4
- 239000013530 defoamer Substances 0.000 claims description 4
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 4
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 4
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- 235000011152 sodium sulphate Nutrition 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- XDMMMGGRRNTWML-UHFFFAOYSA-N cyclohexylazanium;acetate Chemical compound CC(O)=O.NC1CCCCC1 XDMMMGGRRNTWML-UHFFFAOYSA-N 0.000 claims description 3
- 230000009477 glass transition Effects 0.000 claims description 3
- 235000011083 sodium citrates Nutrition 0.000 claims description 3
- 229920001909 styrene-acrylic polymer Polymers 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 20
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- 230000007613 environmental effect Effects 0.000 abstract description 7
- 230000000704 physical effect Effects 0.000 abstract description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 18
- -1 flame retardant compound Chemical class 0.000 description 16
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 14
- 239000000047 product Substances 0.000 description 12
- 239000004005 microsphere Substances 0.000 description 10
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 9
- 239000000843 powder Substances 0.000 description 8
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 7
- YSMRWXYRXBRSND-UHFFFAOYSA-N TOTP Chemical compound CC1=CC=CC=C1OP(=O)(OC=1C(=CC=CC=1)C)OC1=CC=CC=C1C YSMRWXYRXBRSND-UHFFFAOYSA-N 0.000 description 7
- 239000007921 spray Substances 0.000 description 7
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 6
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 6
- 238000001035 drying Methods 0.000 description 6
- LQZZUXJYWNFBMV-UHFFFAOYSA-N ethyl butylhexanol Natural products CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 description 6
- 239000004816 latex Substances 0.000 description 6
- 229920000126 latex Polymers 0.000 description 6
- BZQKBFHEWDPQHD-UHFFFAOYSA-N 1,2,3,4,5-pentabromo-6-[2-(2,3,4,5,6-pentabromophenyl)ethyl]benzene Chemical compound BrC1=C(Br)C(Br)=C(Br)C(Br)=C1CCC1=C(Br)C(Br)=C(Br)C(Br)=C1Br BZQKBFHEWDPQHD-UHFFFAOYSA-N 0.000 description 5
- XYVAYAJYLWYJJN-UHFFFAOYSA-N 2-(2-propoxypropoxy)propan-1-ol Chemical compound CCCOC(C)COC(C)CO XYVAYAJYLWYJJN-UHFFFAOYSA-N 0.000 description 5
- 229920000388 Polyphosphate Polymers 0.000 description 5
- 239000006087 Silane Coupling Agent Substances 0.000 description 5
- 150000001298 alcohols Chemical class 0.000 description 5
- 239000007822 coupling agent Substances 0.000 description 5
- 239000001205 polyphosphate Substances 0.000 description 5
- 235000011176 polyphosphates Nutrition 0.000 description 5
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 4
- 239000002202 Polyethylene glycol Substances 0.000 description 4
- 229920002125 Sokalan® Polymers 0.000 description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 230000032683 aging Effects 0.000 description 4
- UQZIWOQVLUASCR-UHFFFAOYSA-N alumane;titanium Chemical compound [AlH3].[Ti] UQZIWOQVLUASCR-UHFFFAOYSA-N 0.000 description 4
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 4
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 description 4
- 239000003963 antioxidant agent Substances 0.000 description 4
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- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 4
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- 239000000919 ceramic Substances 0.000 description 4
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 4
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical compound C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 description 4
- 239000011737 fluorine Substances 0.000 description 4
- 229910052731 fluorine Inorganic materials 0.000 description 4
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- 239000004611 light stabiliser Substances 0.000 description 4
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- 229940051841 polyoxyethylene ether Drugs 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- CUVLMZNMSPJDON-UHFFFAOYSA-N 1-(1-butoxypropan-2-yloxy)propan-2-ol Chemical compound CCCCOCC(C)OCC(C)O CUVLMZNMSPJDON-UHFFFAOYSA-N 0.000 description 3
- JDSQBDGCMUXRBM-UHFFFAOYSA-N 2-[2-(2-butoxypropoxy)propoxy]propan-1-ol Chemical compound CCCCOC(C)COC(C)COC(C)CO JDSQBDGCMUXRBM-UHFFFAOYSA-N 0.000 description 3
- 229940058020 2-amino-2-methyl-1-propanol Drugs 0.000 description 3
- 229940100555 2-methyl-4-isothiazolin-3-one Drugs 0.000 description 3
- PZOGAKOZVSTZSO-UHFFFAOYSA-N 2-methyl-5,6-dihydro-4h-cyclopenta[d][1,2]thiazol-3-one Chemical compound C1CCC2=C1SN(C)C2=O PZOGAKOZVSTZSO-UHFFFAOYSA-N 0.000 description 3
- PORQOHRXAJJKGK-UHFFFAOYSA-N 4,5-dichloro-2-n-octyl-3(2H)-isothiazolone Chemical compound CCCCCCCCN1SC(Cl)=C(Cl)C1=O PORQOHRXAJJKGK-UHFFFAOYSA-N 0.000 description 3
- UEEJHVSXFDXPFK-UHFFFAOYSA-N N-dimethylaminoethanol Chemical compound CN(C)CCO UEEJHVSXFDXPFK-UHFFFAOYSA-N 0.000 description 3
- OPKOKAMJFNKNAS-UHFFFAOYSA-N N-methylethanolamine Chemical compound CNCCO OPKOKAMJFNKNAS-UHFFFAOYSA-N 0.000 description 3
- CBTVGIZVANVGBH-UHFFFAOYSA-N aminomethyl propanol Chemical compound CC(C)(N)CO CBTVGIZVANVGBH-UHFFFAOYSA-N 0.000 description 3
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- ILHIHKRJJMKBEE-UHFFFAOYSA-N hydroperoxyethane Chemical compound CCOO ILHIHKRJJMKBEE-UHFFFAOYSA-N 0.000 description 3
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- 238000011160 research Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
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- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 2
- LIAWCKFOFPPVGF-UHFFFAOYSA-N 2-ethyladamantane Chemical compound C1C(C2)CC3CC1C(CC)C2C3 LIAWCKFOFPPVGF-UHFFFAOYSA-N 0.000 description 2
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- 238000006243 chemical reaction Methods 0.000 description 2
- DHNRXBZYEKSXIM-UHFFFAOYSA-N chloromethylisothiazolinone Chemical compound CN1SC(Cl)=CC1=O DHNRXBZYEKSXIM-UHFFFAOYSA-N 0.000 description 2
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- XMNDMAQKWSQVOV-UHFFFAOYSA-N (2-methylphenyl) diphenyl phosphate Chemical compound CC1=CC=CC=C1OP(=O)(OC=1C=CC=CC=1)OC1=CC=CC=C1 XMNDMAQKWSQVOV-UHFFFAOYSA-N 0.000 description 1
- QCAHUFWKIQLBNB-UHFFFAOYSA-N 3-(3-methoxypropoxy)propan-1-ol Chemical compound COCCCOCCCO QCAHUFWKIQLBNB-UHFFFAOYSA-N 0.000 description 1
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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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/08—Polyurethanes from polyethers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- 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
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Abstract
The invention belongs to the technical field of coatings, and discloses a non-asphalt-based spraying quick-setting water-based polyurethane waterproof coating and a preparation method thereof. The waterproof coating comprises a component A and a component B, wherein the component A comprises deionized water, a composite aqueous polyurethane dispersion, a pigment filler, a flame retardant, a freeze-thaw stabilizer, a pH regulator, a defoaming agent, a wetting agent, a dispersing agent, a film-forming assistant, a thickening agent, an adhesion promoter, a sterilization preservative and an anti-aging agent; the component B is a coagulant which consists of an inorganic metal salt solution and an additive. The waterproof coating can reach more than 500% of elongation at break and tensile strength exceeding 2MPa, B1-grade flame retardant property and ultralow temperature and freeze-thaw resistance, is applied to the thickness of 0.5-5 mm by one-time spraying and can be solidified after 2-4 s, so that the construction time and the construction cost are greatly saved, and the waterproof coating has the physical property comparable to that of solvent type polyurethane and higher environmental protection property.
Description
Technical Field
The invention relates to the technical field of coatings, in particular to a non-asphalt-based spraying quick-setting water-based polyurethane waterproof coating and a preparation method thereof.
Background
The polyurethane waterproof coating is divided into two components and a single component, and is a solvent type product with the solid content of more than 85 percent, the two-component polyurethane waterproof coating comprises a component A and a component B, wherein the component A is a prepolymer containing isocyanate groups (-NCO) and prepared by taking polyether polyol, diisocyanate and the like as raw materials through a polymerization reaction; the component B is prepared by mixing and processing a cross-linking agent, an accelerant, a flexibilizer, a tackifier, a mildew preventive, a filler, a diluent and the like. The single-component polyurethane waterproof paint is prepared by dewatering mixed polyether, adding diisocyanate and various assistants and performing epoxy modification. Because the product contains organic solvent, the use of the product is limited in a closed space or a field with higher environmental protection requirement.
In order to meet the environmental requirements, the water-based method becomes a trend and the focus of research of various enterprises. The most emerging materials are water-based acrylic acid waterproof coatings, which have excellent environmental protection performance and aging resistance, are widely applied to the maintenance of concrete roofs and steel structure roofs, but due to the characteristics of acrylic resin, the acrylic acid waterproof coatings have the defects of low elongation (about 200%) and overhigh water absorption (about 20%, domestic resin is higher), and the popularization and application of the products are seriously influenced.
With the development of the aqueous polyurethane dispersion technology, aqueous one-component polyurethane waterproof paint and aqueous two-component polyurethane waterproof paint appear on the market. The waterborne polyurethane waterproof coating inherits the excellent performance of solvent type polyurethane, solves the problem of high content of VOC and harmful substances (benzene series, free TDI and heavy metal) of an oily product, expands the application range (from non-exposed type to exposed type) of the polyurethane coating, and widens the construction range of the polyurethane waterproof coating on a wet base surface and the like.
However, in the above solvent-based products or aqueous polyurethane waterproof coating products, the dry film thickness of each film formation is preferably controlled to be 500 μm during construction, and the designed thickness is usually achieved by multiple constructions. This makes construction extremely difficult for projects that require a time-out period or projects that suddenly rain. Meanwhile, the interval time between the multiple-time brushing is long, and the paint is easily polluted by dust or foreign matters on the site of a construction site, so that the final film coating performance of the product is influenced.
Therefore, the research and development of the water-based polyurethane waterproof coating which has the advantages of both a solvent type waterproof coating and a water-based polyurethane waterproof coating can improve the drying speed of a construction site, can be sprayed to a designed thickness at one time, and can reduce the water absorption of a coating film is a problem which needs to be solved urgently in the research field of waterproof materials.
Disclosure of Invention
The invention aims to provide a non-asphalt-based spraying quick-setting water-based polyurethane waterproof coating and a preparation method thereof, and solves the problems of the existing waterproof coating. The waterproof coating takes the composite aqueous polyurethane dispersion as a main film forming substance, and is added with a special functional auxiliary agent, so that the waterproof coating has physical properties and higher environmental protection performance which are comparable to those of solvent type polyurethane while the stability of the material is ensured, and the drying speed of a construction site can be improved.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides a non-asphalt-based spraying quick-setting water-based polyurethane waterproof coating, which comprises a component A and a component B;
the component A is prepared from the following raw materials in parts by mass: 5-10 parts of deionized water, 40-60 parts of composite aqueous polyurethane dispersoid, 25-50 parts of pigment and filler, 5-30 parts of flame retardant, 1-15 parts of freeze-thaw stabilizer, 0.1-0.5 part of pH regulator, 0.4-1.0 part of defoamer, 0.1-0.5 part of wetting agent, 1-1.5 parts of dispersant, 0.2-0.8 part of film-forming assistant, 0.2-0.4 part of thickener, 0.1-1.5 parts of adhesion promoter, 0.2-0.4 part of bactericidal preservative and 0.5-5 parts of anti-aging agent;
the component B is a coagulant;
the mass ratio of the component A to the component B is 8-20: 1.
preferably, in the non-asphalt-based spraying quick-setting aqueous polyurethane waterproof coating, the composite aqueous polyurethane dispersion comprises an aqueous polyurethane dispersion and an additional aqueous dispersion, and the mass ratio of the aqueous polyurethane dispersion to the additional aqueous dispersion is 5-10: 1 to 3.
Preferably, in the non-asphalt-based spraying quick-setting aqueous polyurethane waterproof coating, the solid content of the composite aqueous polyurethane dispersion is not lower than 50% by weight, and the glass transition temperature is not higher than-30 ℃.
Preferably, in the non-asphalt-based spray quick-setting aqueous polyurethane waterproof coating material, the aqueous polyurethane dispersion is one or two of anionic aliphatic polyether polyurethane dispersion and anionic aromatic polyether polyurethane dispersion.
Preferably, in the non-asphalt-based spraying quick-setting water-based polyurethane waterproof coating, the additional water dispersion is one or more of water-based silicone emulsion, anionic styrene-acrylic emulsion, anionic pure acrylic emulsion and nonionic neoprene emulsion.
Preferably, in the non-asphalt-based spraying quick-setting water-based polyurethane waterproof coating, the pigment and filler is one or more of rutile titanium dioxide, titanium-aluminum powder, inorganic pigment, organic pigment, mica powder, precipitated barium sulfate, precipitated silica, nanoscale indirect zinc oxide, ceramic microspheres, hollow glass microspheres, hollow polymer microspheres and silica aerogel particles.
Preferably, in the non-asphalt-based spray coating fast-setting aqueous polyurethane waterproof coating, the flame retardant is one or more of antimony trioxide, decabromodiphenylethane, aluminum hydroxide, magnesium hydroxide, tricresyl phosphate, cresyldiphenyl phosphate and a hydroxyl-containing flame retardant compound.
Preferably, in the non-asphalt-based spray-coating quick-setting water-based polyurethane waterproof coating, the freeze-thaw stabilizer is one or more of fatty alcohol-polyoxyethylene ether, polyethylene glycol phenyl ether, ethoxylated alcohol, ethoxylated acetylenic diol, isopropyl alcohol, ethylene glycol, propylene glycol, thioether and phosphate surfactant.
Preferably, in the non-asphalt-based spraying quick-setting aqueous polyurethane waterproof coating, the pH regulator is an organic amine.
Preferably, in the non-asphalt-based spraying quick-setting water-based polyurethane waterproof coating, the defoaming agent is one or more of mineral oil, polyether, organic silicon and polyether modified polysiloxane.
Preferably, in the non-asphalt-based spraying quick-setting water-based polyurethane waterproof coating, the wetting agent is one or more of organosilicon containing a dimethyl structure, alkoxy compound of alcohol and fluorine-containing organic compound.
Preferably, in the non-asphalt-based spraying quick-setting water-based polyurethane waterproof coating, the dispersant is one or more of polyphosphate, polyacrylic acid derivatives and non-ionic water-soluble polymers.
Preferably, in the non-asphalt-based spraying quick-setting water-based polyurethane waterproof coating, the film-forming assistant is one or more of alcohols, alcohol esters, alcohol ethers and alcohol ether esters.
Preferably, in the non-asphalt-based spraying quick-setting water-based polyurethane waterproof coating, the thickener is one or more of cellulose, bentonite, fumed silica and polyurethane thickener.
Preferably, in the non-asphalt-based spraying quick-setting water-based polyurethane waterproof coating, the adhesion promoter is one or more of an epoxy silane polymer coupling agent, an isocyanate silane coupling agent, an epoxy silane emulsion with the content of 40% and an ethanol-diluted epoxy silane polymer with the content of 50%.
Preferably, in the non-asphalt-based spray coating fast-setting water-based polyurethane waterproof coating, the bactericidal preservative is one or more of benzisothiazolin-3-one, 2-methyl-4-isothiazolin-3-one, 5-chloro-2-methyl-4-isothiazolin-3-one, 2-n-octyl-4-isothiazolin-3-one, 2-methyl-4, 5-trimethylene-4-isothiazolin-3-one and 4, 5-dichloro-2-n-octyl-4-isothiazolin-3-one.
Preferably, in the non-asphalt-based spray-coating quick-setting aqueous polyurethane waterproof coating, the anti-aging agent is one or more of an ultraviolet absorber, a light stabilizer and an antioxidant.
Preferably, in the non-asphalt-based spraying quick-setting aqueous polyurethane waterproof coating, the component B coagulant is prepared from the following raw materials in parts by mass: 1-98 parts of inorganic metal salt solution and 2-99 parts of additive.
Preferably, in the non-asphalt-based spraying quick-setting water-based polyurethane waterproof coating, the mass concentration of the inorganic metal salt solution is 5-20%.
Preferably, in the non-asphalt-based spraying quick-setting water-based polyurethane waterproof coating, the inorganic metal salt solution is one or more of zinc sulfate, aluminum sulfate, sodium citrate, sodium bicarbonate and sodium sulfate.
Preferably, in the non-asphalt-based spraying quick-setting water-based polyurethane waterproof coating, the additive is one or more of citric acid solution, cyclohexylammonium acetate, polyvinyl methyl ether, carbodiimide, epoxy silane polymer and isocyanate silane polymer.
The invention also provides a preparation method of the non-asphalt-based spraying quick-setting water-based polyurethane waterproof coating, and the preparation method of the component A comprises the following steps:
mixing deionized water, pigment and filler, a flame retardant, a defoaming agent, a wetting agent and a dispersing agent, stirring, grinding, adding the composite aqueous polyurethane dispersion, a pH regulator, a freeze-thaw stabilizer, a film-forming assistant, an adhesion promoter, a sterilization preservative and an anti-aging agent, stirring, adding a thickening agent, stirring, filtering and packaging to obtain the component A.
Preferably, in the preparation method of the non-asphalt-based spray-coating quick-setting water-based polyurethane waterproof coating, the grinding is carried out until the particle size is 10-40 μm.
The invention also provides a construction method of the non-asphalt-based spraying fast-setting water-based polyurethane waterproof coating, wherein the waterproof coating is sprayed by a double-component spraying device, and the component A and the component B are sprayed by a spray gun of the double-component spraying device and are mixed in a cross way outside the spray gun.
Through the technical scheme, compared with the prior art, the invention has the following beneficial effects:
(1) the composite aqueous polyurethane dispersion is used as a main film forming substance, and a special functional auxiliary agent is added, so that the composite aqueous polyurethane dispersion has physical properties and higher environmental protection performance which are comparable to those of solvent type polyurethane while the stability of the material is ensured, and the drying speed of a construction site can be improved.
(2) According to the invention, the composite aqueous polyurethane dispersion replaces anionic neoprene latex which is unstable to the filler in the traditional quick-setting coating, so that the performance can be further improved by adding the functional filler in the formula system, the physical performance is obviously improved compared with the traditional system, the defect of poor stability of the emulsion or latex to the filler in the traditional formula system is overcome, the stability of the product system is enhanced, and the quality guarantee period is longer.
(3) The waterproof coating disclosed by the invention does not contain asphalt components, so that the anti-aging performance is greatly improved compared with that of a common product, the accelerated aging test time in a laboratory is up to more than 2000 hours, and the coating has no cracks and no discoloration, so that the aging resistance of an exposed application occasion is greatly improved.
(4) The waterproof coating can reach more than 500 percent of elongation at break and tensile strength of more than 2MPa, and has B1-grade flame retardant property, ultralow temperature resistance, storage stability and freeze-thaw stability, so that the waterproof coating can be applied to more fields.
(5) The waterproof coating is constructed by two-component spraying equipment, A, B two components are mixed outside a gun and are simultaneously sprayed on a base surface to form a continuous non-lap joint waterproof layer, the waterproof coating is sprayed to the thickness of 0.5-5 mm at one time and can be solidified after 2-4 seconds, the drying time is faster than that of the common waterproof coating by more than 80%, 3-5 procedures are reduced, and therefore the construction time and the construction cost are greatly saved.
(6) Compared with the common spraying quick-setting coating, the waterproof coating disclosed by the invention needs high-pressure spraying equipment during construction, the spraying pressure of the component A is 2-6 MPa (the spraying pressure of the common spraying quick-setting product is less than 2MPa), a better atomization effect can be ensured, mechanical faults caused by product demulsification in a construction site are reduced, the maximum stable conveying distance can reach 100 m, and the convenience and the stability of site construction are greatly enhanced.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a non-asphalt-based spraying quick-setting water-based polyurethane waterproof coating, which comprises a component A and a component B;
the component A is prepared from the following raw materials in parts by mass: 5-10 parts of deionized water, 40-60 parts of composite aqueous polyurethane dispersoid, 25-50 parts of pigment and filler, 5-30 parts of flame retardant, 1-15 parts of freeze-thaw stabilizer, 0.1-0.5 part of pH regulator, 0.4-1.0 part of defoamer, 0.1-0.5 part of wetting agent, 1-1.5 parts of dispersant, 0.2-0.8 part of film-forming assistant, 0.2-0.4 part of thickener, 0.1-1.5 parts of adhesion promoter, 0.2-0.4 part of bactericidal preservative and 0.5-5 parts of anti-aging agent;
the component B is a coagulant;
the mass ratio of the component A to the component B is 8-20: 1.
preferably, in the non-asphalt-based spraying quick-setting aqueous polyurethane waterproof coating, the composite aqueous polyurethane dispersion comprises an aqueous polyurethane dispersion and an additional aqueous dispersion, and the mass ratio of the aqueous polyurethane dispersion to the additional aqueous dispersion is 5-10: 1-3, wherein the weight solid content of the composite aqueous polyurethane dispersoid is not less than 50%, and the glass transition temperature is not higher than-30 ℃. At present, the existing research usually uses aqueous polyurethane dispersion to prepare waterproof paint, which can also achieve the purpose of waterproof, but the main defects are that the water absorption rate can only be controlled at about 10%, the low-temperature flexibility can only be controlled at-30 ℃, the highest flame retardant level reaches B2 level, and if the requirement on water absorption rate is lower and the paint is used in extremely cold weather and has a higher flame retardant level of B1 group, the paint needs to be subjected to chemical reaction or physical blending modification. The waterproof coating prepared by the modified composite aqueous polyurethane dispersion has the lowest water absorption rate of below 5 percent, the lowest low-temperature flexibility of below-40 ℃, and the flame retardant grade of B1 grade.
Preferably, in the non-asphalt-based spray-coating quick-setting aqueous polyurethane waterproof coating material, the aqueous polyurethane dispersion is one or two of an anionic aliphatic polyether polyurethane dispersion and an anionic aromatic polyether polyurethane dispersion, and more preferably, the anionic aliphatic polyether polyurethane dispersion.
Preferably, in the non-asphalt-based spraying quick-setting water-based polyurethane waterproof coating, the added water dispersion is one or more of water-based silicone emulsion, anionic styrene-acrylic emulsion, anionic pure acrylic emulsion and nonionic neoprene emulsion, and further preferably is one or more of water-based silicone emulsion, anionic pure acrylic emulsion and nonionic neoprene emulsion.
Preferably, in the non-asphalt-based spraying quick-setting water-based polyurethane waterproof coating, the pigment and filler is one or more of rutile titanium dioxide, titanium-aluminum powder, inorganic pigment, organic pigment, mica powder, precipitated barium sulfate, precipitated silica, nanoscale indirect-method zinc oxide, ceramic microspheres, hollow glass microspheres, hollow polymer microspheres and silica aerogel particles.
Preferably, in the non-asphalt-based spray coating fast-setting aqueous polyurethane waterproof coating, the flame retardant is one or more of antimony trioxide, decabromodiphenylethane, aluminum hydroxide, magnesium hydroxide, tricresyl phosphate, cresyldiphenyl phosphate and hydroxyl-containing flame retardant compounds, and more preferably one or two of decabromodiphenylethane and tricresyl phosphate.
Preferably, in the non-asphalt-based spray-coating quick-setting water-based polyurethane waterproof coating, the freeze-thaw stabilizer is one or more of fatty alcohol-polyoxyethylene ether, polyethylene glycol phenyl ether, ethoxy alcohol, ethoxy acetylenic diol, isopropanol, ethylene glycol, propylene glycol, thioether and phosphate ester surfactants.
Preferably, in the non-asphalt-based spraying quick-setting water-based polyurethane waterproof coating, the pH regulator is an organic amine, and more preferably one or more of 2-amino-2-methyl-1-propanol, N-methylethanolamine and dimethylethanolamine.
Preferably, in the non-asphalt-based spraying quick-setting water-based polyurethane waterproof coating, the defoaming agent is one or more of mineral oil, polyether, organosilicon and polyether modified polysiloxane, and more preferably one or two of organosilicon and polyether.
Preferably, in the non-asphalt-based spray-coating quick-setting water-based polyurethane waterproof coating, the wetting agent is one or more of organosilicon containing a dimethyl structure, alkoxy compound of alcohol and fluorine-containing organic compound.
Preferably, in the non-asphalt-based spray-coating quick-setting water-based polyurethane waterproof coating, the dispersant is one or more of polyphosphate, polyacrylic acid derivative and non-ionic water-soluble polymer, and more preferably one or two of polyphosphate and non-ionic polyacrylamide.
Preferably, in the non-asphalt-based spray quick-setting water-based polyurethane waterproof coating, the film-forming assistant is one or more of alcohols, alcohol esters, alcohol ethers and alcohol ether esters, and more preferably one or more of propylene glycol, dodecyl alcohol ester, dipropylene glycol monomethyl ether, dipropylene glycol monopropyl ether, dipropylene glycol monobutyl ether and tripropylene glycol n-butyl ether.
Preferably, in the non-asphalt-based spraying quick-setting water-based polyurethane waterproof coating, the thickening agent is one or more of cellulose, bentonite, fumed silica and polyurethane thickening agent.
Preferably, in the non-asphalt-based spray-coating quick-setting aqueous polyurethane waterproof coating, the adhesion promoter is one or more of an epoxy silane polymer coupling agent, an isocyanate silane coupling agent, an epoxy silane emulsion with a content of 40% and an ethanol-diluted epoxy silane polymer with a content of 50%, and more preferably one or two of the epoxy silane polymer coupling agent and the isocyanate silane coupling agent.
Preferably, in the non-asphalt-based spray coating fast-setting water-based polyurethane waterproof coating, the bactericidal preservative is one or more of benzisothiazolin-3-one, 2-methyl-4-isothiazolin-3-one, 5-chloro-2-methyl-4-isothiazolin-3-one, 2-n-octyl-4-isothiazolin-3-one, 2-methyl-4, 5-trimethylene-4-isothiazolin-3-one and 4, 5-dichloro-2-n-octyl-4-isothiazolin-3-one.
Preferably, in the non-asphalt-based spray-coating quick-setting aqueous polyurethane waterproof coating, the anti-aging agent is one or more of an ultraviolet absorber, a light stabilizer and an antioxidant.
Preferably, in the non-asphalt-based spraying quick-setting water-based polyurethane waterproof coating, the component B coagulant is prepared from the following raw materials in parts by mass: 1-98 parts of inorganic metal salt solution and 2-99 parts of additive. The B-component set accelerator of the present invention is distinguished from conventional B-component curing agents, which do not cure to form a film without the B-component curing agent, whereas the B-component set accelerator of the present invention primarily promotes the setting and drying of the a-component, i.e., the a-component can also cure to form a film without the B-component. Moreover, the reactive admixture is added on the basis that the traditional coagulant only contains inorganic metal salt solution, so that the problems of poor permeability and low adhesion between the coating and a base surface caused by the over-quick solidification of the coagulant of the inorganic metal salt solution are solved. The component B of the invention can enable the coating to generate chemical reaction with reactive groups and basal planes in the coating in the process of fast curing, thereby enhancing the physical property and adhesive force of the coating.
Preferably, in the non-asphalt-based spraying quick-setting water-based polyurethane waterproof coating, the mass concentration of the inorganic metal salt solution is 5-20%; the inorganic metal salt solution is one or more of zinc sulfate, aluminum sulfate, sodium citrate, sodium bicarbonate and sodium sulfate. The invention uses the inorganic metal salt solution without chloride ions to avoid the corrosion of chloride ions to basal planes (especially metal basal planes), so that the waterproof coating can be applied to wider basal planes.
Preferably, in the non-asphalt-based spraying quick-setting water-based polyurethane waterproof coating, the additive is one or more of a citric acid solution, cyclohexylammonium acetate, polyvinyl methyl ether, carbodiimide, epoxy silane polymer and isocyanate silane polymer, and more preferably is one or more of a citric acid solution with a mass concentration of 5-20%, carbodiimide and epoxy silane polymer.
The invention also provides a preparation method of the non-asphalt-based spraying quick-setting water-based polyurethane waterproof coating, and the preparation method of the component A comprises the following steps:
mixing deionized water, a pigment filler, a flame retardant, a defoaming agent, a wetting agent and a dispersing agent, keeping the temperature at 25-50 ℃, stirring for 20-40 min, grinding until the particle size is 10-40 mu m, then adding a composite aqueous polyurethane dispersion, a pH regulator, a freeze-thaw stabilizer, a film-forming assistant, an adhesion promoter, a sterilization preservative and an anti-aging agent, keeping the temperature at 25-50 ℃, stirring for 20-40 min, adding a thickening agent, stirring for 10-20 min, filtering and packaging to obtain a component A;
the preparation method of the component B comprises the following steps: and (3) mixing the inorganic metal salt solution and the additive, stirring for 20-40 min, filtering and packaging to obtain the component B.
The invention also provides a construction method of the non-asphalt-based spraying fast-setting water-based polyurethane waterproof coating, the waterproof coating is sprayed by two-component spraying equipment, and the component A and the component B are sprayed by a spray gun of the two-component spraying equipment and are mixed in a cross way outside the spray gun.
Example 1
The invention provides a non-asphalt-based spraying quick-setting water-based polyurethane waterproof coating, which comprises a component A and a component B;
the component A is prepared from the following raw materials in parts by mass: 5 parts of deionized water, 32 parts of anionic aliphatic polyether polyurethane dispersoid, 16 parts of anionic aromatic polyether polyurethane dispersoid, 6 parts of aqueous organosilicon emulsion, 6 parts of anionic pure acrylic emulsion, 6 parts of rutile titanium dioxide, 4 parts of titanium aluminum powder, 10 parts of precipitated silica, 5 parts of hollow glass microspheres, 15 parts of decabromodiphenylethane, 15 parts of tricresyl phosphate, 5 parts of polyethylene glycol phenyl ether, 5 parts of ethoxy alcohol, 5 parts of ethylene glycol, 0.5 part of 2-amino-2-methyl-1-propanol, 1.0 part of organosilicon antifoaming agent, 0.1 part of organosilicon wetting agent containing dimethyl structure, 1 part of polyphosphate, 0.3 part of dodecyl alcohol ester, 0.5 part of dipropylene glycol monopropyl ether, 0.2 part of cellulose, 0.2 part of bentonite, 1.5 parts of isocyanate silane coupling agent, and 0.4 part of 2-methyl-4-isothiazolin-3-one, 5 parts of an ultraviolet absorber;
the component B is a coagulant and is prepared from the following raw materials in parts by mass: 95 parts of inorganic metal salt solution with the mass concentration of 20% and 5 parts of epoxy silane polymer, wherein the inorganic metal salt solution consists of zinc sulfate, aluminum sulfate and sodium citrate;
the mass ratio of the component A to the component B is 10: 1.
the preparation method of the component A comprises the following steps: mixing deionized water, rutile type titanium dioxide, titanium-aluminum powder, precipitated silica, hollow glass microspheres, decabromodiphenylethane, tricresyl phosphate, an organosilicon antifoaming agent, an organosilicon wetting agent containing a dimethyl structure and polyphosphate, keeping the temperature at 25 ℃, stirring for 20min, grinding to the particle size of 15 mu m, adding an anionic aliphatic polyether polyurethane dispersion, an anionic aromatic polyether polyurethane dispersion, an aqueous organosilicon emulsion, an anionic pure acrylic emulsion, 2-amino-2-methyl-1-propanol, polyethylene glycol phenyl ether, ethoxy alcohol, ethylene glycol, dodecyl alcohol, dipropylene glycol monopropyl ether, an isocyanate silane coupling agent, 2-methyl-4-isothiazoline-3-one and an ultraviolet absorbent, keeping the temperature at 25 ℃, stirring for 30min, adding cellulose and bentonite, stirring for 10min, filtering, and packaging to obtain component A.
The preparation method of the component B comprises the following steps: mixing inorganic metal salt solution and epoxy silane polymer, stirring for 20min, filtering, and packaging to obtain component B.
Example 2
The invention provides a non-asphalt-based spraying quick-setting water-based polyurethane waterproof coating, which comprises a component A and a component B;
the component A is prepared from the following raw materials in parts by mass: 10 parts of deionized water, 25 parts of anionic aliphatic polyether polyurethane dispersion, 10 parts of aqueous organosilicon emulsion, 5 parts of nonionic neoprene latex, 20 parts of inorganic pigment, 30 parts of ceramic microspheres, 5 parts of aluminum hydroxide, 0.2 part of ethylene glycol, 0.8 part of propylene glycol, 0.1 part of N-methylethanolamine, 0.2 part of organosilicon antifoaming agent, 0.2 part of polyether antifoaming agent, 0.1 part of alcohol alkoxy compound wetting agent, 1.5 parts of nonionic polyacrylamide, 0.1 part of dipropylene glycol monopropyl ether, 0.1 part of dipropylene glycol monobutyl ether, 0.2 part of fumed silica, 0.1 part of epoxy silane polymer coupling agent, 0.2 part of 2-methyl-4, 5-trimethylene-4-isothiazolin-3-one and 0.5 part of light stabilizer;
the component B is a coagulant and is prepared from the following raw materials in parts by mass: 90 parts of inorganic metal salt solution with the mass concentration of 5% consisting of zinc sulfate, sodium bicarbonate and sodium sulfate, 4 parts of citric acid solution with the mass concentration of 20%, 5 parts of epoxy silane polymer and 1 part of carbodiimide;
the mass ratio of the component A to the component B is 12: 1.
the preparation method of the component A comprises the following steps: mixing deionized water, inorganic pigment, ceramic microspheres, aluminum hydroxide, organosilicon defoaming agent, polyether defoaming agent, alcohol alkoxy compound wetting agent and nonionic polyacrylamide, keeping the temperature at 30 ℃, stirring for 30min, grinding to the particle size of 30 mu m, adding anionic aliphatic polyether polyurethane dispersoid, aqueous organosilicon emulsion, nonionic neoprene latex, ethylene glycol, propylene glycol, N-methylethanolamine, dipropylene glycol monopropyl ether, dipropylene glycol monobutyl ether, epoxy silane polymer coupling agent, 2-methyl-4, 5-trimethylene-4-isothiazoline-3-ketone and light stabilizer, keeping the temperature at 30 ℃, stirring for 20min, adding fumed silica, stirring for 20min, filtering and packaging to obtain the component A.
The preparation method of the component B comprises the following steps: mixing inorganic metal salt solution, citric acid solution, epoxy silane polymer and carbodiimide, stirring for 25min, filtering, and packaging to obtain component B.
Example 3
The invention provides a non-asphalt-based spraying quick-setting water-based polyurethane waterproof coating, which comprises a component A and a component B;
the component A is prepared from the following raw materials in parts by mass: 8 parts of deionized water, 45 parts of anionic aliphatic polyether polyurethane dispersoid, 5 parts of nonionic neoprene latex, 20 parts of mica powder, 10 parts of precipitated barium sulfate, 7 parts of tricresyl phosphate, 8 parts of diphenyl toluene phosphate, 2 parts of fatty alcohol-polyoxyethylene ether, 6 parts of isopropanol, 0.3 part of dimethylethanolamine, 0.6 part of mineral oil defoamer, 0.2 part of fluorine-containing organic compound wetting agent, 1.2 parts of polyacrylic acid derivative, 0.1 part of dodecyl alcohol ester, 0.3 part of tripropylene glycol n-butyl ether, 0.3 part of polyurethane thickener, 0.8 part of epoxy silane emulsion with the content of 40%, 0.3 part of 4, 5-dichloro-2-n-octyl-4-isothiazolin-3-one and 2 parts of antioxidant;
the component B is a coagulant and is prepared from the following raw materials in parts by mass: 60 parts of inorganic metal salt solution with the mass concentration of 15% consisting of zinc sulfate, aluminum sulfate and sodium citrate, 8 parts of citric acid solution with the mass concentration of 5%, 10 parts of epoxy silane polymer, 20 parts of polyvinyl methyl ether and 2 parts of isocyanate silane polymer;
the mass ratio of the component A to the component B is 8: 1.
the preparation method of the component A comprises the following steps: mixing deionized water, mica powder, precipitated barium sulfate, tricresyl phosphate, diphenyl cresyl phosphate, a mineral oil defoaming agent, a fluorine-containing organic compound wetting agent and a polyacrylic acid derivative, keeping the temperature at 40 ℃, stirring for 30min, grinding to the particle size of 40 mu m, adding an anionic aliphatic polyether polyurethane dispersion, nonionic neoprene latex, dimethylethanolamine, fatty alcohol polyoxyethylene ether, isopropanol, dodecanol ester, tripropylene glycol n-butyl ether, an epoxy silane emulsion with the content of 40%, 4, 5-dichloro-2-n-octyl-4-isothiazoline-3-ketone and an antioxidant, keeping the temperature at 40 ℃, stirring for 10min, adding a polyurethane thickener, stirring for 20min, filtering and packaging to obtain the component A.
The preparation method of the component B comprises the following steps: mixing inorganic metal salt solution, citric acid solution, epoxy silane polymer, polyvinyl methyl ether and isocyanate silane polymer, stirring for 20min, filtering, and packaging to obtain component B.
Performance tests of the non-asphalt-based spray quick-setting waterborne polyurethane waterproof coating and the coating thereof prepared in the examples 1 to 3 are carried out according to GB/T16777, GB/T18244 and GB/T19250, and the results are shown in Table 1.
TABLE 1 coating Performance test results
Note: a is only an exposed product test.
As can be seen from Table 1, the waterproof coating and the coating thereof provided by the invention have excellent flame retardant property and aging resistance, can meet the relevant standards of solvent type polyurethane waterproof coatings, and simultaneously greatly improve the environmental protection property. The extremely low water absorption reduces the leakage risk in the field of water immersion, and the excellent low temperature resistance and freeze-thaw resistance stability enable the paint to be applied to regions in extremely cold weather, the rapid curing and drying characteristics greatly accelerate the construction progress, and the construction period and the construction cost are saved.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A non-asphalt-based spraying quick-setting water-based polyurethane waterproof coating is characterized by comprising a component A and a component B;
the component A is prepared from the following raw materials in parts by mass: 5-10 parts of deionized water, 40-60 parts of composite aqueous polyurethane dispersoid, 25-50 parts of pigment and filler, 5-30 parts of flame retardant, 1-15 parts of freeze-thaw stabilizer, 0.1-0.5 part of pH regulator, 0.4-1.0 part of defoamer, 0.1-0.5 part of wetting agent, 1-1.5 parts of dispersant, 0.2-0.8 part of film-forming assistant, 0.2-0.4 part of thickener, 0.1-1.5 parts of adhesion promoter, 0.2-0.4 part of bactericidal preservative and 0.5-5 parts of anti-aging agent;
the component B is a coagulant;
the mass ratio of the component A to the component B is 8-20: 1.
2. the non-asphalt-based spraying quick-setting aqueous polyurethane waterproof coating material as claimed in claim 1, wherein the composite aqueous polyurethane dispersion comprises an aqueous polyurethane dispersion and an additional aqueous dispersion, and the mass ratio of the aqueous polyurethane dispersion to the additional aqueous dispersion is 5-10: 1 to 3.
3. The non-asphalt-based spray-coating quick-setting aqueous polyurethane waterproof coating material as claimed in claim 2, wherein the composite aqueous polyurethane dispersion has a solid content of not less than 50% by weight and a glass transition temperature of not more than-30 ℃.
4. The non-asphalt-based spray-on fast-setting aqueous polyurethane waterproof coating material according to any one of claims 1 to 3, wherein the aqueous polyurethane dispersion is one or both of an anionic aliphatic polyether polyurethane dispersion and an anionic aromatic polyether polyurethane dispersion.
5. The non-asphalt-based spraying quick-setting water-based polyurethane waterproof paint as claimed in claim 2, wherein the external water dispersion is one or more of water-based silicone emulsion, anionic styrene-acrylic emulsion, anionic acrylic emulsion and nonionic neoprene emulsion.
6. The non-asphalt-based spraying quick-setting aqueous polyurethane waterproof coating material as claimed in claim 1, wherein the B component coagulant is prepared from the following raw materials in parts by mass: 1-98 parts of inorganic metal salt solution and 2-99 parts of additive.
7. The non-asphalt-based spraying quick-setting water-based polyurethane waterproof paint as claimed in claim 6, wherein the mass concentration of the inorganic metal salt solution is 5-20%; the additive is one or more of citric acid solution, cyclohexylammonium acetate, polyvinyl methyl ether, carbodiimide, epoxy silane polymer and isocyanate silane polymer.
8. The non-asphalt-based spray-coating quick-setting aqueous polyurethane waterproof coating material as claimed in claim 6 or 7, wherein the inorganic metal salt solution is one or more of zinc sulfate, aluminum sulfate, sodium citrate, sodium bicarbonate and sodium sulfate.
9. The preparation method of the non-asphalt-based spraying quick-setting water-based polyurethane waterproof coating material as claimed in any one of claims 1 to 8, wherein the preparation method of the component A comprises the following steps:
mixing deionized water, pigment and filler, a flame retardant, a defoaming agent, a wetting agent and a dispersing agent, stirring, grinding, adding the composite aqueous polyurethane dispersion, a pH regulator, a freeze-thaw stabilizer, a film-forming assistant, an adhesion promoter, a sterilization preservative and an anti-aging agent, stirring, adding a thickening agent, stirring, filtering and packaging to obtain the component A.
10. The preparation method of the non-asphalt-based spraying quick-setting water-based polyurethane waterproof paint according to claim 9, wherein the grinding is carried out until the particle size is 10-40 μm.
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| CN115505317A (en) * | 2022-10-31 | 2022-12-23 | 中德新亚建筑材料有限公司 | Water-based epoxy asphalt waterproof and anticorrosive coating for inner wall of water tank and preparation method thereof |
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