A kind of hard aluminum alloy surface silanization protective treatment agent and preparation method thereof
A hard aluminum alloy, silanization technology, applied in the direction of metal material coating process, can solve the problems of harming the environment, high energy consumption, complex process, etc., and achieve the effect of low polarization current density and enhanced corrosion resistance.
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[0018] A hard aluminum alloy surface silanization protection treatment agent is made of the following components, and the weight (grams) of each raw material component in every 500 grams of mixed solution is:
[0019] Monoethanolamine Benzoate 2, Gur Gum 5, Rosin 3, Trihydroxyethyl Isocyanurate 5-6, Maleic Anhydride 10, Diethylene Glycol Butyl Ether 4, Propylene Glycol 8, Succinic Acid 3, Vinyltriethoxysilane 12, the balance is deionized water.
[0020] The preparation method of described metal surface silanization protective treatment agent comprises the following steps:
[0021] (1) Heat and melt the rosin to 110-115°C, add diethylene glycol butyl ether and vinyl triethoxysilane, and stir for 35-50 minutes;
[0022] (2) Heat up to 145-160°C, add trihydroxyethylisocyanurate and maleic anhydride, and stir for 40-50 minutes;
[0023] (3) Continue to heat up to 190-205°C, add monoethanolamine benzoate and gull gum, and stir for 40-50 minutes;
[0024] (4) Cool down to 80-90°C...
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