CN103468040A - Composite high-power waterproof silica gel paint and preparation method thereof - Google Patents
Composite high-power waterproof silica gel paint and preparation method thereof Download PDFInfo
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- CN103468040A CN103468040A CN2013104718647A CN201310471864A CN103468040A CN 103468040 A CN103468040 A CN 103468040A CN 2013104718647 A CN2013104718647 A CN 2013104718647A CN 201310471864 A CN201310471864 A CN 201310471864A CN 103468040 A CN103468040 A CN 103468040A
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- emulsion
- polyvinyl alcohol
- vinyl acetate
- mass
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 69
- 239000002131 composite material Substances 0.000 title claims abstract description 39
- 229910002027 silica gel Inorganic materials 0.000 title claims abstract description 33
- 239000000741 silica gel Substances 0.000 title claims abstract description 33
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 239000003973 paint Substances 0.000 title abstract description 14
- 239000000839 emulsion Substances 0.000 claims abstract description 82
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 64
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 49
- 239000000463 material Substances 0.000 claims abstract description 48
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 47
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims abstract description 45
- XYRAEZLPSATLHH-UHFFFAOYSA-N trisodium methoxy(trioxido)silane Chemical compound [Na+].[Na+].[Na+].CO[Si]([O-])([O-])[O-] XYRAEZLPSATLHH-UHFFFAOYSA-N 0.000 claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 40
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 31
- 239000002994 raw material Substances 0.000 claims abstract description 29
- 239000000945 filler Substances 0.000 claims abstract description 26
- 238000003756 stirring Methods 0.000 claims abstract description 16
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 4
- 238000000576 coating method Methods 0.000 claims description 58
- 239000011248 coating agent Substances 0.000 claims description 49
- 239000012752 auxiliary agent Substances 0.000 claims description 29
- 239000006229 carbon black Substances 0.000 claims description 26
- 239000000243 solution Substances 0.000 claims description 26
- 239000000843 powder Substances 0.000 claims description 23
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 22
- 239000011575 calcium Substances 0.000 claims description 22
- 229910052791 calcium Inorganic materials 0.000 claims description 22
- 239000003063 flame retardant Substances 0.000 claims description 22
- 229920002379 silicone rubber Polymers 0.000 claims description 22
- 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 description 21
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 19
- 239000004945 silicone rubber Substances 0.000 claims description 18
- 239000011259 mixed solution Substances 0.000 claims description 15
- 239000002518 antifoaming agent Substances 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 12
- 238000011049 filling Methods 0.000 claims description 5
- 239000000377 silicon dioxide Substances 0.000 abstract description 5
- 230000002349 favourable effect Effects 0.000 abstract 3
- 230000007613 environmental effect Effects 0.000 abstract 1
- 231100000956 nontoxicity Toxicity 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 27
- 239000002585 base Substances 0.000 description 22
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 15
- 229910000019 calcium carbonate Inorganic materials 0.000 description 8
- 239000004567 concrete Substances 0.000 description 8
- 238000010276 construction Methods 0.000 description 8
- 239000010426 asphalt Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 239000004570 mortar (masonry) Substances 0.000 description 7
- 238000004078 waterproofing Methods 0.000 description 7
- 238000005336 cracking Methods 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 5
- 230000001680 brushing effect Effects 0.000 description 5
- 229920001971 elastomer Polymers 0.000 description 5
- 239000005060 rubber Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 4
- 235000011941 Tilia x europaea Nutrition 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 4
- 230000032683 aging Effects 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 239000004571 lime Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 229920002689 polyvinyl acetate Polymers 0.000 description 4
- 239000011118 polyvinyl acetate Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- 239000005977 Ethylene Substances 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 231100000252 nontoxic Toxicity 0.000 description 3
- 230000003000 nontoxic effect Effects 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 229920002978 Vinylon Polymers 0.000 description 2
- 229910000004 White lead Inorganic materials 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 229910052681 coesite Inorganic materials 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 229910052906 cristobalite Inorganic materials 0.000 description 2
- 210000003298 dental enamel Anatomy 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000003502 gasoline Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000008267 milk Substances 0.000 description 2
- 210000004080 milk Anatomy 0.000 description 2
- 235000013336 milk Nutrition 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 230000009965 odorless effect Effects 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 235000019198 oils Nutrition 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- -1 phosphate ester Chemical class 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 125000005372 silanol group Chemical group 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 229910052682 stishovite Inorganic materials 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 2
- 229910052905 tridymite Inorganic materials 0.000 description 2
- SCYULBFZEHDVBN-UHFFFAOYSA-N 1,1-Dichloroethane Chemical compound CC(Cl)Cl SCYULBFZEHDVBN-UHFFFAOYSA-N 0.000 description 1
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical compound OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 229910020489 SiO3 Inorganic materials 0.000 description 1
- 239000004965 Silica aerogel Substances 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 1
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 description 1
- 125000002777 acetyl group Chemical class [H]C([H])([H])C(*)=O 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000010428 baryte Substances 0.000 description 1
- 229910052601 baryte Inorganic materials 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical group [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical group [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000013064 chemical raw material Substances 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 238000010556 emulsion polymerization method Methods 0.000 description 1
- 229920001038 ethylene copolymer Polymers 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 229910021485 fumed silica Inorganic materials 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 150000002466 imines Chemical class 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 239000012796 inorganic flame retardant Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000006224 matting agent Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 231100000344 non-irritating Toxicity 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 150000003904 phospholipids Chemical class 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000011941 photocatalyst Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000011527 polyurethane coating Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229910052600 sulfate mineral Inorganic materials 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 239000012463 white pigment Substances 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- 235000014692 zinc oxide Nutrition 0.000 description 1
Landscapes
- Paints Or Removers (AREA)
Abstract
The invention discloses a composite high-power waterproof silica gel paint. The preparation method for preparing the composite high-power waterproof silica gel paint comprises the following steps: 1. taking 32-48 parts of emulsion base material, 8-12 parts of vinyl acetate, 4-6 parts of polyvinyl alcohol, 8-12 parts of sodium methyl silicate, 1.2-1.8 parts of silica white, 1.2-1.8 parts of titanium dioxide, 15.2-22.8 parts of filler, 5.6-8.4 parts of assistant and 4.8-7.2 parts of water as raw materials; 2. adding the vinyl acetate into the emulsion base material, stirring, and dispersing to generate polymerization reaction; 3. adding the silica white, and stirring uniformly; 4. adding the titanium dioxide, filler and assistant, and stirring uniformly; and 5. adding the sodium methyl silicate, polyvinyl alcohol and water, stirring uniformly, and reacting for 9-11 minutes to obtain the composite high-power waterproof silica gel paint. The composite high-power waterproof silica gel paint has the advantages of environmental protection, no toxicity, favorable low-temperature tensile property, favorable crack resistance, long service life, no water adhesion and favorable mechanical strength, and can form a double-layer waterproof structure.
Description
Technical Field
The invention relates to a building waterproof material and a preparation method thereof, in particular to a composite strong waterproof silica gel coating and a preparation method thereof, which are mainly used for coating on the surface of building materials such as concrete, sand-ice slurry, tiles or masonry and the like to generate a waterproof layer so as to achieve the waterproof effect of the building materials.
Background
In recent years, basement water events often occur due to poor waterproofing of underground structures and buildings. The water leakage of the building not only causes adverse effects on the living environment of residents; and if the underground concrete structure seeps water for a long time, on one hand, calcium in the concrete can be greatly lost, and on the other hand, reinforcing steel bars in the concrete can be corroded, so that the integrity of the underground concrete structure is damaged, and the stability and the service life of the main body structure are influenced. Therefore, the waterproof of the underground structure of the building (especially a high-rise building) is made, which not only brings a comfortable living environment for residents, but also is particularly important for the service life of the main structure.
At present, the following waterproof materials are mainly adopted for building waterproofing: asphalt waterproof coiled materials, high-molecular waterproof sheets and building waterproof coatings are respectively used for different engineering positions, environments, building grades, functional requirements and the like according to the characteristics of each material.
Underground engineering is in a wet state for a long time and is difficult to maintain, but the temperature difference change is small, and rigid-flexible combined multiple fortification is generally adopted, namely rigid waterproof additives and flexible materials which are resistant to mildew and rot, good in corrosion resistance and long in service life are adopted; when the cushion layer of the underground engineering is used for water proofing, materials with good puncture resistance are adopted, such as 3mm or 4mm thick glass fiber, polyester tire modified asphalt coiled materials, glass cloth felt and the like.
When a high-molecular waterproof substrate is used, a binder with good water-hardness is generally adopted, and the thickness of the substrate is not less than 1.5 mm.
When the building waterproof coating is selected, materials which can form a film quickly and do not generate re-emulsification, such as polyurethane, silicon rubber waterproof coating and the like, are selected, and the thickness of the building waterproof coating is not less than 2.5 mm.
High-grade coatings in waterproof coatings such as polyurethane coatings, rubber and resin-based coatings; medium grade coatings such as neoprene modified asphalt coatings and other rubber modified asphalt coatings; the low-grade coating mainly comprises reclaimed rubber modified asphalt coating, petroleum asphalt-based waterproof coating and the like, is mainly used for different parts such as inner and outer wall surfaces of buildings, special-shaped structural surfaces, underground parts of toilet bathrooms and the like, and plays an increasingly important role in building decoration waterproof application. The development prospects of waterproof coatings depend on the popularization and application of novel polymers. At present, the color acrylic waterproof material is produced by a plurality of factories in China, the service life of the paint can reach 10 years, the paint can be constructed on a wet base layer, and a seamless color waterproof coating can be obtained by directly brushing or rolling the paint after a cover is opened on site.
The waterproof materials have different degrees of waterproof capability, but all have the serious defects of poor low-temperature tensile resistance and poor crack resistance and are only a waterproof adhesion layer (but not a permeable waterproof layer which has good waterproof property and is difficult to fall off). Most waterproof materials are toxic (release a large amount of toxic substances such as formaldehyde and the like), and are not environment-friendly; the adhesive force is not strong, the adhesive force and the cohesive force are poor, delamination and cracking are caused, and the phenomenon of mortar hollowing is easy to occur; short service life (mostly under 10 years); water is easy to absorb, and an ideal waterproof effect is difficult to achieve; the construction difficulty is large, and the construction procedure is complex, such as asphalt waterproof coiled materials and polymer waterproof sheets.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the composite strong waterproof silica gel coating which is environment-friendly and nontoxic; the adhesive property and the permeability are good, a double-layer waterproof structure (namely a composite structure) with a permeable waterproof layer and an attached elastic waterproof layer connected into a whole can be formed, and the waterproof effect is good; the low-temperature tensile property is good; the elasticity is good, and the anti-cracking performance is good; ageing resistance and long service life; the paint is not sticky with water, has good hydrophobicity and strong waterproof capability; the mechanical strength is good.
The invention also aims to provide a preparation method of the composite strong waterproof silica gel coating.
The technical scheme of the invention is as follows: the composite strong waterproof silica gel coating is prepared from the following raw materials in parts by mass: 32-48 parts of emulsion base material, 8-12 parts of vinyl acetate, 4-6 parts of polyvinyl alcohol, 8-12 parts of sodium methyl silicate, 1.2-1.8 parts of white carbon black, 1.2-1.8 parts of titanium dioxide, 15.2-22.8 parts of filler, 5.6-8.4 parts of auxiliary agent and 4.8-7.2 parts of water;
emulsion base material: the emulsion is a mixed solution of silicone rubber emulsion and VAE emulsion in any proportion, and the mixed solution in any proportion can be any one of silicone rubber emulsion and VAE emulsion, or the mixed solution of silicone rubber emulsion and VAE emulsion in a certain proportion;
auxiliary agent: the flame retardant is composed of an antifoaming agent and a flame retardant, wherein the mass ratio of the antifoaming agent to the flame retardant is 2-6: 1-3;
vinyl acetate: is a vinyl acetate solution having a concentration of 88 to 92 mass%;
filling: the mixture of barite powder and light calcium powder in any proportion can be any one of barite powder and light calcium powder, or the mixture of barite powder and light calcium powder in a certain proportion;
sodium methylsilicate: is a sodium methylsilicate solution with a concentration of 25-35% by mass;
polyvinyl alcohol: is a polyvinyl alcohol solution with a concentration of 8-12% by mass;
the further technical scheme of the invention is as follows: the composite strong waterproof silica gel coating is prepared from the following raw materials in parts by mass: 36-44 parts of emulsion base material, 9-11 parts of vinyl acetate, 4.5-5.5 parts of polyvinyl alcohol, 9-11 parts of sodium methyl silicate, 1.4-1.7 parts of white carbon black, 1.3-1.6 parts of titanium dioxide, 17.1-20.9 parts of filler, 6.3-7.7 parts of auxiliary agent and 5.4-6.6 parts of water.
The further technical scheme of the invention is as follows: the composite strong waterproof silica gel coating is prepared from the following raw materials in parts by mass: 32-40 parts of emulsion base material, 8-10 parts of vinyl acetate, 4-5 parts of polyvinyl alcohol, 8-10 parts of sodium methyl silicate, 1.2-1.5 parts of white carbon black, 1.2-1.5 parts of titanium dioxide, 15.2-19 parts of filler, 5.6-7 parts of auxiliary agent and 4.8-6 parts of water.
The invention further adopts the technical scheme that: the composite strong waterproof silica gel coating is prepared from the following raw materials in parts by mass: 40-48 parts of emulsion base material, 10-12 parts of vinyl acetate, 5-6 parts of polyvinyl alcohol, 10-12 parts of sodium methyl silicate, 1.5-1.8 parts of white carbon black, 1.5-1.8 parts of titanium dioxide, 19-22.8 parts of filler, 7-8.4 parts of auxiliary agent and 6-7.2 parts of water.
The further technical scheme of the invention is as follows: the composite strong waterproof silica gel coating is prepared from the following raw materials in parts by mass: 40 parts of emulsion base material, 10 parts of vinyl acetate, 5 parts of polyvinyl alcohol, 10 parts of sodium methyl silicate, 1.5 parts of white carbon black, 1.5 parts of titanium dioxide, 19 parts of filler, 7 parts of auxiliary agent and 6 parts of water.
The other technical scheme of the invention is as follows:
a preparation method of a composite strong waterproof silica gel coating mainly comprises the following steps:
firstly, taking raw materials
The raw materials are obtained according to the following mass portion: 32-48 parts of emulsion base material, 8-12 parts of vinyl acetate, 4-6 parts of polyvinyl alcohol, 8-12 parts of sodium methyl silicate, 1.2-1.8 parts of white carbon black, 1.2-1.8 parts of titanium dioxide, 15.2-22.8 parts of filler, 5.6-8.4 parts of auxiliary agent and 4.8-7.2 parts of water;
emulsion base material: the emulsion is a mixed solution of silicone rubber emulsion and VAE emulsion in any proportion, and the mixed solution in any proportion can be any one of silicone rubber emulsion and VAE emulsion, or the mixed solution of silicone rubber emulsion and VAE emulsion in a certain proportion;
auxiliary agent: the flame retardant is composed of an antifoaming agent and a flame retardant, wherein the mass ratio of the antifoaming agent to the flame retardant is 2-6: 1-3;
vinyl acetate: is a vinyl acetate solution having a concentration of 88 to 92 mass%;
filling: the mixture of barite powder and light calcium powder in any proportion can be any one of barite powder and light calcium powder, or the mixture of barite powder and light calcium powder in a certain proportion;
sodium methylsilicate: is a sodium methylsilicate solution with a concentration of 25-35% by mass;
polyvinyl alcohol: is a polyvinyl alcohol solution with a concentration of 8-12% by mass;
adding vinyl acetate (solution) into the emulsion base material, stirring, dispersing and carrying out polymerization reaction;
thirdly, adding white carbon black and stirring uniformly;
fourthly, adding titanium dioxide, filler and auxiliary agent, and stirring uniformly;
fifthly, adding sodium methyl silicate (solution), polyvinyl alcohol (solution) and water; stirring uniformly, and reacting for 9-11 min (min); the composite strong waterproof silica gel coating is prepared.
The invention further adopts another technical scheme that: the first step obtains the following raw materials in parts by mass: 36-44 parts of emulsion base material, 9-11 parts of vinyl acetate, 4.5-5.5 parts of polyvinyl alcohol, 9-11 parts of sodium methyl silicate, 1.4-1.7 parts of white carbon black, 1.3-1.6 parts of titanium dioxide, 17.1-20.9 parts of filler, 6.3-7.7 parts of auxiliary agent and 5.4-6.6 parts of water.
Still another technical scheme of the invention is as follows: the first step obtains the following raw materials in parts by mass: 32-40 parts of emulsion base material, 8-10 parts of vinyl acetate, 4-5 parts of polyvinyl alcohol, 8-10 parts of sodium methyl silicate, 1.2-1.5 parts of white carbon black, 1.2-1.5 parts of titanium dioxide, 15.2-19 parts of filler, 5.6-7 parts of auxiliary agent and 4.8-6 parts of water.
Still another technical scheme of the invention is as follows: the first step obtains the following raw materials in parts by mass: 40-48 parts of emulsion base material, 10-12 parts of vinyl acetate, 5-6 parts of polyvinyl alcohol, 10-12 parts of sodium methyl silicate, 1.5-1.8 parts of white carbon black, 1.5-1.8 parts of titanium dioxide, 19-22.8 parts of filler, 7-8.4 parts of auxiliary agent and 6-7.2 parts of water.
The invention further adopts another technical scheme that: the first step obtains the following raw materials in parts by mass: 40 parts of emulsion base material, 10 parts of vinyl acetate, 5 parts of polyvinyl alcohol, 10 parts of sodium methyl silicate, 1.5 parts of white carbon black, 1.5 parts of titanium dioxide, 19 parts of filler, 7 parts of auxiliary agent and 6 parts of water.
The main symbols and names used in the invention are resolved as follows:
silicon rubber emulsion: the silicone rubber emulsion produced by Jinan Raymond Chemicals Limited company can be adopted, the silicone rubber emulsion prepared by the method of Chinese patent CN90100436.7 (the name of the invention is the preparation method of the silicone rubber emulsion) can be also adopted, and products with similar performance on the market can also be used.
VAE emulsion: the emulsion is a high molecular emulsion which is formed by copolymerizing vinyl acetate and ethylene monomers serving as basic raw materials and other auxiliary materials by an emulsion polymerization method; ethylene and vinyl acetate copolymers are the most important products of ethylene copolymers, and are generally called EVA in foreign countries. However, in China, ethylene and vinyl acetate copolymers are classified into EVA resins, EVA rubbers and VAE emulsions according to the content of vinyl acetate therein. The product with the vinyl acetate content less than 40 percent is EVA resin; the product with the vinyl acetate content of 40-70 percent is very flexible; the EVA resin with the content in the range is sometimes called EVA rubber due to the elastic characteristic; vinyl acetate content in the range of 70% to 95% is generally in an emulsion state, known as VAE emulsion. The VAE emulsion appears milky white or yellowish in appearance.
Vinyl acetate: is colorless liquid and has sweet ether taste; english name: vinyl acetate, vinyl ethanoate; alias: vinyl acetate, vinyl acetate; the molecular formula is as follows: c4H6O2、CH3COOCHCH2。
Polyvinyl alcohol: polyvinyl alcohol, organic compounds, white flaky, flocculent or powdery solids, and no odor. Soluble in water, insoluble in gasoline, kerosene, vegetable oil, benzene, toluene, dichloroethane, carbon tetrachloride, acetone, ethyl acetate, methanol, ethylene glycol, etc. Is slightly soluble in dimethyl sulfoxide. Polyvinyl alcohol is an important chemical raw material, and is used for manufacturing polyvinyl acetal, gasoline-resistant pipelines, vinylon synthetic fibers, fabric treating agents, emulsifiers, paper coatings, adhesives and the like. Chinese alias: polyvinyl alcohol paste, polyvinyl alcohol film, vinylon and polyvinyl alcohol fiber; english name: polyvinyl alcohol, polyvinyl alcohol polymer, poval, abbreviated PVA; the molecular formula is as follows: [ C ]2H4O]n。
Sodium methylsilicate: is a novel rigid building waterproof material and has good penetration crystallinity. The silanol group in the molecular structure reacts with the silanol group in the silicate material for dehydration and crosslinking, so that an excellent hydrophobic layer is formed by an anti-capillary effect, and the silicon-based composite material has the functions of micro-expansion and compactness increasing. The mechanism that the organosilicon waterproofing agent has high-efficiency waterproofing function is adopted; molecular formula: CH (CH)5SiO3And (4) Na. Sodium methylsilicate produced by ZiBo Zihui chemical Co., Ltd can be used.
White carbon black: is a general term for white powdery X-ray amorphous silicic acid and silicate products, mainly refers to precipitated silica, fumed silica, ultrafine silica gel and aerogel, and also includes powdery synthetic aluminum silicate, calcium silicate and the like. The white carbon black is porous material, and its composition can be SiO2·nH2O represents, wherein nH2O is present in the form of surface hydroxyl groups. It is soluble in caustic alkali and hydrofluoric acid, and insoluble in water, solvent and acid (except hydrofluoric acid). The cable is high temperature resistant, non-combustible, tasteless, odorless and good in electrical insulation; the molecular formula is as follows: SiO22.x(H2O)。
Titanium dioxide: chemical formula is TiO2Titanium white is commonly known as titanium dioxide, is mostly used for photocatalyst and cosmetics, can be disinfected and sterilized by ultraviolet rays, is widely developed at present, and has a chance to become a new industry in the future. Titanium dioxide can be extracted from rutile by acid decomposition, or from titanium tetrachloride decomposition. Titanium dioxide is stable in nature, is used in large quantities as a white pigment in paints, has good hiding power, is similar to white lead, but does not turn black like white lead; it has the same persistence as zinc white. Titanium dioxide is also used as a matting agent for enamels and can produce a very bright, hard and acid-resistant enamel cover coat.
Barite powder: the chemical composition of barite is mainly BaSO4The content is more than 90 percent, and other components such as SiO2, Fe2O3, Al2O3 and the like are contained in small amount, and the crystal belongs to an orthorhombic (orthorhombic) crystal system sulfate mineral; the crystal is thick plate-shaped or columnar crystal, and is mostly dense block-shaped or plate-shaped or granular aggregate; the fineness of the barite powder is 200-325 meshes.
Light calcium powder: also known as light calcium carbonate; light calcium powder is prepared by burning limestone to obtain lime (main component is calcium oxide) and carbon dioxide, adding water to digest lime to obtain lime milk (main component is calcium hydroxide), then adding carbon dioxide to carbonize lime milk to obtain calcium carbonate precipitate, dewatering, drying and pulverizing, or performing double decomposition reaction on sodium carbonate and calcium chloride to obtain calcium carbonate precipitate, dewatering, drying and pulverizingPreparing; the precipitated volume (2.4-2.8 mL/g) of the light calcium powder is larger than the precipitated volume (1.1-1.4 mL/g) of the heavy calcium powder, so the light calcium powder is called; the chemical formula of the calcium carbonate is CaCO3The calcium carbonate is non-toxic, odorless and nonirritating, is generally white, and has a relative density of 2.7-2.9; the precipitated volume of the light calcium carbonate is more than 2.5ml/g, and the specific surface area is about 5m 2/g. The light calcium carbonate particles are fine, the surface is rough, and the specific surface area is large, so that the oil absorption value is high and is about 60-90 ml/100 g; the powder of the light calcium powder has the characteristics that a, the particle shape is regular and can be regarded as monodisperse powder; b, the particle size distribution is narrow; and c, small particle size.
The defoaming agent mainly can be grafted by organic siloxane, polyether, silicon and ether, contains amine, imine and amides, and has the characteristics of higher defoaming speed, longer foam inhibition time, wider applicable medium range and even harsh medium environments such as high temperature, strong acid and strong alkali.
Flame retardant: the additive flame retardant mainly comprises an inorganic flame retardant, a halogen flame retardant (organic chloride and organic bromide), a phosphorus flame retardant (red phosphorus, phosphate ester, halogenated phosphate ester and the like), a nitrogen flame retardant and the like.
The principle of the invention and the characteristics compared with the prior art are as follows:
1. the applicant also proves through experiments that the coating disclosed by the invention is directly coated on the surface of concrete, mortar, tiles or masonry, can chemically react with the alkaline substances, can permeate into the concrete, the mortar, the tiles or the masonry for 20mm to generate a permeable layer for waterproofing, and forms two waterproof layers, namely an elastic waterproof layer (attached to the elastic waterproof layer) and a permeable waterproof layer, which are arranged on the outer layer, wherein the elastic waterproof layer and the permeable waterproof layer are of an integral structure, and the permeable waterproof layer and the concrete, the mortar, the tiles or the masonry form an integral structure and have strong adhesive force, so that the defect of 'only waterproofing of a surface attached layer' is completely overcome, a very good waterproof effect is achieved, and test data show that the waterproof effect of the coating is more than 300 times higher than that of the existing surface-coated waterproof material; the integral waterproof layer is formed, so that the product has good adhesion, is safer and longer in waterproof and is lower in waterproof cost; the mortar can solve the problem that mortar is easy to bulge when being used as a mortar protective layer in various complex cement matrix waterproof constructions of buildings.
2. The coating main body has the characteristics of glue (mainly adopting the silicon rubber emulsion and the VAE emulsion originally), and the silicon rubber emulsion and the VAE emulsion are irreversibly coalesced to form a polymeric film layer (namely an elastic waterproof layer) with higher elasticity, so that on one hand, the coating can be prevented from peeling off due to base layer moisture and the like, and the waterproof layer has good waterproofness, on the other hand, the coating main body has good elasticity, can resist tiny cracks of the self cracking of a building, and can adapt to certain building deformation, namely has good crack resistance.
3. The coating has high weather resistance, especially good low-temperature performance, and can not crack and the like.
4. The coating disclosed by the invention is good in ageing resistance, radiation resistance and oxidation resistance, and can be used for more than 60 years under a conventional environment through calculation of strong light and strong radiation tests, so that obvious ageing cannot occur.
5. The paint of the invention has strong surface adhesion and is difficult to fall off.
6. All the raw materials are environment-friendly raw materials, are environment-friendly and non-toxic, and can be suitable for all buildings to be used for water prevention.
Therefore, after the coating is used, the coating has good adhesion and permeability, high adhesion and no falling off; the traceability and elasticity are good, and the anti-cracking performance is good; the radiation resistance and the oxidation resistance are good, the aging resistance is good, and the service life is long; the paint is not sticky with water, has good hydrophobicity and strong waterproof capability; the mechanical strength is good, and the tearing and the cracking are not easy to occur; has high weather resistance, especially good low-temperature performance, and does not crack at the low temperature of-10 ℃.
In order to illustrate the invention more clearly, the following examples are given without any limitation to the scope of the invention.
Detailed Description
Example 1
The embodiment provides a preparation process of a composite strong waterproof silica gel coating, which mainly comprises the following steps:
weighing raw materials: 40 kg of emulsion base material, 10 kg of vinyl acetate, 5 kg of polyvinyl alcohol, 10 kg of sodium methyl silicate, 1.5 kg of white carbon black, 1.5 kg of titanium dioxide, 19 kg of filler, 7 kg of auxiliary agent and 6 kg of water; wherein,
emulsion base material: the emulsion is a mixed solution of silicone rubber emulsion and VAE emulsion in any proportion, and the mixed solution in any proportion can be any one of silicone rubber emulsion and VAE emulsion, or the mixed solution of silicone rubber emulsion and VAE emulsion in a certain proportion;
auxiliary agent: the flame retardant is composed of an antifoaming agent and a flame retardant, wherein the mass ratio of the antifoaming agent to the flame retardant is 2-6: 1-3; the defoaming agent can be methyl silicone oil, the flame retardant can be phospholipid, and other defoaming agents and flame retardants with similar performance can also be used;
vinyl acetate: the polyvinyl acetate solution is a polyvinyl acetate solution with the concentration of 88-92%, namely the mass ratio of the polyvinyl acetate to the polyvinyl acetate is 88-92%, and the concentration is generally 90%;
filling: the mixture of barite powder and light calcium powder in any proportion can be any one of barite powder and light calcium powder, or the mixture of barite powder and light calcium powder in a certain proportion;
sodium methylsilicate: the sodium methyl silicate solution is 25-35% of sodium methyl silicate solution, namely the mass ratio of the sodium methyl silicate to the sodium methyl silicate solution is 25-35%, and the concentration is generally 30%;
polyvinyl alcohol: the polyvinyl alcohol solution is 8-12% concentration polyvinyl alcohol solution, namely the mass ratio of polyvinyl alcohol to the polyvinyl alcohol solution is 8-12%, and the concentration is generally 10%;
firstly, adding vinyl acetate (solution) into emulsion base material, stirring, dispersing and carrying out polymerization reaction;
thirdly, adding white carbon black and stirring uniformly;
fourthly, adding titanium dioxide, filler and auxiliary agent, and stirring uniformly;
fifthly, adding sodium methyl silicate (solution), polyvinyl alcohol (solution) and water; stirring uniformly, and reacting for 9-11 min (min); the composite strong waterproof silica gel coating is prepared.
During production, the pH value can be adjusted to 7.5-8.5, i.e. hydrochloric acid or sodium hydroxide is added to make the pH value to 7.5-8.5.
The composite strong waterproof silica gel coating is suitable for waterproof engineering of building roofs, kitchens and bathrooms, water pools, tunnels, basements (bottom plates, top plates, side walls) and the like.
The construction method comprises the following steps:
1. the base surface of the building is required to be flat, clean and dry, the strength is more than C20, oil crops are not allowed to exist, and the water content of the base surface is required to be less than 8%;
2. if the base surface has hollow cracks and cavities with the diameter of more than or equal to 1mm, cement mortar is needed to be used for repairing and smoothing, the internal and external corners are made into circular arc shapes, and special parts such as other pipe orifices and the like need to be treated;
3. after the base surface is cleaned completely, the common construction method of the coating can adopt two-coating one-cloth (non-woven fabric); the brushing construction is completed in two times, and the secondary brushing time is that the brushing is carried out back and forth in the positive and negative directions after the primary brushing construction is dried; the thickness of the coating is about 1.0 mm-2.0 mm thickness +/-non-woven fabric;
4. after the coating is dried, a heat-insulating layer is made or other objects are scattered to be used as a protective layer.
Through detection, the paint completely meets the standard of JC/T864-2008 polymer emulsion building waterproof paint.
Examples 2 to 20
The raw materials and the quality used in examples 2 to 20 are shown in Table 1 below, and the preparation method and the application (construction) method thereof are the same as those in example 1; the following Table 1 shows the specific raw materials and the amounts used in examples 1 to 20. According to the requirements of JCT/864-2008, the coating of each embodiment of the invention is tested, the following table 2 shows the testing data of the composite strong waterproof silica gel coating obtained in the embodiments 1-20, and the testing data shows that the composite strong waterproof silica gel coating of the invention has good adhesion and permeability; the traceability and the high elasticity are good; the water repellent performance is good; the mechanical strength is good; high weatherability, especially good low-temp performance, no cracking at-10 deg.C. The invention can form a waterproof structure with the permeable layer and the surface film layer integrated, and is a great technical breakthrough of the existing building waterproof material.
TABLE 1
TABLE 2
Claims (10)
1. A composite strong waterproof silica gel coating is characterized in that: the composite material is prepared from the following raw materials in parts by mass: 32-48 parts of emulsion base material, 8-12 parts of vinyl acetate, 4-6 parts of polyvinyl alcohol, 8-12 parts of sodium methyl silicate, 1.2-1.8 parts of white carbon black, 1.2-1.8 parts of titanium dioxide, 15.2-22.8 parts of filler, 5.6-8.4 parts of auxiliary agent and 4.8-7.2 parts of water;
emulsion base material: the emulsion is a mixed solution of silicone rubber emulsion and VAE emulsion in any proportion, and the mixed solution in any proportion can be any one of silicone rubber emulsion and VAE emulsion, or the mixed solution of silicone rubber emulsion and VAE emulsion in a certain proportion;
auxiliary agent: the flame retardant is composed of an antifoaming agent and a flame retardant, wherein the mass ratio of the antifoaming agent to the flame retardant is 2-6: 1-3;
vinyl acetate: is a vinyl acetate solution having a concentration of 88 to 92 mass%;
filling: the mixture of barite powder and light calcium powder in any proportion can be any one of barite powder and light calcium powder, or the mixture of barite powder and light calcium powder in a certain proportion;
sodium methylsilicate: is a sodium methylsilicate solution with a concentration of 25-35% by mass;
polyvinyl alcohol: is a polyvinyl alcohol solution having a concentration of 8 to 12% by mass.
2. The composite strong waterproof silica gel coating as claimed in claim 1, wherein: the composite material is prepared from the following raw materials in parts by mass: 36-44 parts of emulsion base material, 9-11 parts of vinyl acetate, 4.5-5.5 parts of polyvinyl alcohol, 9-11 parts of sodium methyl silicate, 1.4-1.7 parts of white carbon black, 1.3-1.6 parts of titanium dioxide, 17.1-20.9 parts of filler, 6.3-7.7 parts of auxiliary agent and 5.4-6.6 parts of water.
3. The composite strong waterproof silica gel coating as claimed in claim 1, wherein: the composite material is prepared from the following raw materials in parts by mass: 32-40 parts of emulsion base material, 8-10 parts of vinyl acetate, 4-5 parts of polyvinyl alcohol, 8-10 parts of sodium methyl silicate, 1.2-1.5 parts of white carbon black, 1.2-1.5 parts of titanium dioxide, 15.2-19 parts of filler, 5.6-7 parts of auxiliary agent and 4.8-6 parts of water.
4. The composite strong waterproof silica gel coating as claimed in claim 1, wherein: the composite material is prepared from the following raw materials in parts by mass: 40-48 parts of emulsion base material, 10-12 parts of vinyl acetate, 5-6 parts of polyvinyl alcohol, 10-12 parts of sodium methyl silicate, 1.5-1.8 parts of white carbon black, 1.5-1.8 parts of titanium dioxide, 19-22.8 parts of filler, 7-8.4 parts of auxiliary agent and 6-7.2 parts of water.
5. The composite strong waterproof silica gel coating as claimed in claim 1, 2, 3 or 4, wherein: the composite material is prepared from the following raw materials in parts by mass: 40 parts of emulsion base material, 10 parts of vinyl acetate, 5 parts of polyvinyl alcohol, 10 parts of sodium methyl silicate, 1.5 parts of white carbon black, 1.5 parts of titanium dioxide, 19 parts of filler, 7 parts of auxiliary agent and 6 parts of water.
6. A preparation method of a composite strong waterproof silica gel coating is characterized by comprising the following steps: which comprises the following steps:
firstly, taking raw materials
The raw materials are obtained according to the following mass portion: 32-48 parts of emulsion base material, 8-12 parts of vinyl acetate, 4-6 parts of polyvinyl alcohol, 8-12 parts of sodium methyl silicate, 1.2-1.8 parts of white carbon black, 1.2-1.8 parts of titanium dioxide, 15.2-22.8 parts of filler, 5.6-8.4 parts of auxiliary agent and 4.8-7.2 parts of water;
emulsion base material: the emulsion is a mixed solution of silicone rubber emulsion and VAE emulsion in any proportion, and the mixed solution in any proportion can be any one of silicone rubber emulsion and VAE emulsion, or the mixed solution of silicone rubber emulsion and VAE emulsion in a certain proportion;
auxiliary agent: the flame retardant is composed of an antifoaming agent and a flame retardant, wherein the mass ratio of the antifoaming agent to the flame retardant is 2-6: 1-3;
vinyl acetate: is a vinyl acetate solution having a concentration of 88 to 92 mass%;
filling: the mixture of barite powder and light calcium powder in any proportion can be any one of barite powder and light calcium powder, or the mixture of barite powder and light calcium powder in a certain proportion;
sodium methylsilicate: is a sodium methylsilicate solution with a concentration of 25-35% by mass;
polyvinyl alcohol: is a polyvinyl alcohol solution with a concentration of 8-12% by mass;
adding vinyl acetate into the emulsion base material, stirring, dispersing and carrying out polymerization reaction;
thirdly, adding white carbon black and stirring uniformly;
fourthly, adding titanium dioxide, filler and auxiliary agent, and stirring uniformly;
fifthly, adding sodium methyl silicate, polyvinyl alcohol and water; stirring uniformly; the composite strong waterproof silica gel coating is prepared.
7. The preparation method of the composite strong waterproof silica gel coating as claimed in claim 6, which is characterized in that: the first step obtains the following raw materials in parts by mass: 36-44 parts of emulsion base material, 9-11 parts of vinyl acetate, 4.5-5.5 parts of polyvinyl alcohol, 9-11 parts of sodium methyl silicate, 1.4-1.7 parts of white carbon black, 1.3-1.6 parts of titanium dioxide, 17.1-20.9 parts of filler, 6.3-7.7 parts of auxiliary agent and 5.4-6.6 parts of water.
8. The preparation method of the composite strong waterproof silica gel coating as claimed in claim 6, which is characterized in that: the first step obtains the following raw materials in parts by mass: 32-40 parts of emulsion base material, 8-10 parts of vinyl acetate, 4-5 parts of polyvinyl alcohol, 8-10 parts of sodium methyl silicate, 1.2-1.5 parts of white carbon black, 1.2-1.5 parts of titanium dioxide, 15.2-19 parts of filler, 5.6-7 parts of auxiliary agent and 4.8-6 parts of water.
9. The preparation method of the composite strong waterproof silica gel coating as claimed in claim 6, which is characterized in that: the first step obtains the following raw materials in parts by mass: 40-48 parts of emulsion base material, 10-12 parts of vinyl acetate, 5-6 parts of polyvinyl alcohol, 10-12 parts of sodium methyl silicate, 1.5-1.8 parts of white carbon black, 1.5-1.8 parts of titanium dioxide, 19-22.8 parts of filler, 7-8.4 parts of auxiliary agent and 6-7.2 parts of water.
10. The preparation method of the composite strong waterproof silica gel coating according to claim 6, 7, 8 or 9, which is characterized in that: the first step obtains the following raw materials in parts by mass: 40 parts of emulsion base material, 10 parts of vinyl acetate, 5 parts of polyvinyl alcohol, 10 parts of sodium methyl silicate, 1.5 parts of white carbon black, 1.5 parts of titanium dioxide, 19 parts of filler, 7 parts of auxiliary agent and 6 parts of water.
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