Metal protective coating and hot galvanizing metal material and hot dip aluminum-zinc metal material
A metal protective coating and hot-dip galvanizing technology, which is applied in the direction of anti-corrosion coatings, polyester coatings, metal layered products, etc., can solve the problems of poor corrosion resistance, water resistance, heat resistance and fingerprint resistance of the protective film, and achieve Excellent heat resistance and excellent fingerprint resistance
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Embodiment 1
[0046] 1 part by weight of water-soluble silicate (Na 2 SiO 3 ), 0.6 parts by weight of accelerator (pyrrolidone and thiourea are obtained by mixing 1:1 by weight), 1.6 parts by weight of silane coupling agent (the first silane derivative (2-(3,4-epoxycyclohexyl ) ethyltrimethoxysilane, purchased from Hubei Debang Fine Chemical Co., Ltd.) and the second silane derivative (γ-aminopropyltriethoxysilane, purchased from Hubei Debang Fine Chemical Co., Ltd.) by weight ratio 1 : 0.25 mixed to obtain), 0.72 parts by weight of silica filler (nano-silica powder, purchased from U.S. GE company, RNS-E, average particle size 20nm), 2.4 parts by weight (calculated as solid) of water-soluble film-forming resin (water-soluble silicon-acrylic film-forming resin (Qingdao Xingguo Paint Company TC-05 type silicon-acrylic emulsion, solid content is 48% by weight)) and the water of 28 parts by weight are mixed to uniform under the stirring speed of 1500 rev / mins, obtain The metal protective coat...
Embodiment 2
[0048] With 1 weight part of water-soluble silicate (K 2 SiO 3 ), 0.5 parts by weight of accelerator (N-methylpyrrolidone and methylcellulose are obtained by mixing 1:1 by weight), 1.4 parts by weight of silane coupling agent (the first silane derivative (2-(3, 4-epoxycyclohexyl) ethyl triethoxysilane, purchased from Hubei Debang Fine Chemical Co., Ltd.) and the second silane derivative (γ-glycidyl ether oxypropyltrimethoxysilane, purchased from Hubei Debang Fine Chemical Co., Ltd.) obtained by mixing at a weight ratio of 1:0.4), 0.6 parts by weight of silica filler (nano-silicon dioxide, purchased from GE Company of the United States, RNS-E, with an average particle size of 20nm), 2.1 parts by weight (as solid Water-soluble film-forming resin (water-soluble acrylic acid film-forming resin (purchased from Guangzhou Ou Peng chemical industry brand is the acrylic resin of A-3418)) and 25 parts by weight of water, mixed at a stirring speed of 1500 rev / min To evenness, obtain th...
Embodiment 3
[0050] 1 part by weight of water-soluble silicate (Na 2 SiO 3 ), 0.7 parts by weight of accelerator (thiourea and sodium methylcellulose are obtained by mixing 1:1 by weight ratio of N-ethylpyrrolidone, urea and sodium methylcellulose by weight ratio of 1:1:1), 1.8 weight Parts of silane coupling agent (the first silane derivative (2-(3,4-epoxycyclohexyl)propyltrimethoxysilane, purchased from Hubei Debang Fine Chemical Co., Ltd.) and the second silane derivative (γ - glycidyl ether oxypropyltrimethoxysilane, purchased from Hubei Debang Fine Chemical Co., Ltd.) obtained by mixing 1:0.1 by weight), 0.85 parts by weight of silica filler (30% by weight of silica sol, the usage amount is Solids), 2.7 parts by weight (in solids) of water-soluble film-forming resin (water-soluble polyurethane film-forming resin (purchased from Fujian Jinjiang Jianhua Company, polyurethane resin of brand 812)) and 40 parts by weight of water, at 1500 rpm Mix to uniform under the stirring speed of / ...
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