Aluminum profile surface yellowing-resistance treatment liquid
A technology for yellowing resistance and liquid treatment, applied in coatings, anti-corrosion coatings, polyurea/polyurethane coatings, etc., can solve problems such as affecting corrosion resistance, poor film durability, and easy cracking, achieving low cost and high performance. Stable and strong adhesion
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[0012] An anti-yellowing treatment solution for the surface of aluminum profiles, prepared from the following raw materials in parts by weight (kg): 0.5 benzotriazole, 5 cerous nitrate, 1 sodium fluoride, 1.5 hydrogen peroxide, and vinyl triethyl Oxysilane 20, polyvinyl alcohol 1, nano titanium dioxide 1, nano aluminum oxide 2, water-based polyurethane 5, tetraethylamine tetrafluoroborate 0.2, diethylene glycol monobutyl ether 0.3, N trifluoroacetyl D-glucosamine 1. Precipitated barium sulfate 1, tungsten carbide 0.3, deionized water 100.
[0013] The anti-yellowing treatment solution for the surface of aluminum profiles is prepared by the following specific steps:
[0014] (1) Mix vinyltriethoxysilane, deionized water and absolute ethanol evenly according to the volume ratio of 5:5:90, then drop in acetic acid to adjust the pH value to 6.5, stir and hydrolyze at room temperature for 48 hours for later use;
[0015] (2) Dissolve polyvinyl alcohol with 5 times the amount of de...
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