Surface silanization protection treatment agent for hard aluminum alloy and preparation method thereof
A hard aluminum alloy and silanization technology, applied in anti-corrosion coatings, coatings, etc., can solve problems such as environmental hazards, complex processes, and environmental pollution, and achieve the effects of enhanced corrosion resistance and low polarization current density
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[0018] A silanization protective treatment agent for the surface of hard aluminum alloy, which is made of the following components, and the weight (g) of each raw material component in each 500g mixed solution is:
[0019] Benzoic acid monoethanolamine 2, Gul 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 the metal surface silanization protection treatment agent includes the following steps:
[0021] (1) Heat and melt the rosin to 110-115°C, add diethylene glycol butyl ether and vinyl triethoxysilane, stir and react for 35-50 minutes;
[0022] (2) The temperature is raised to 145-160°C, trihydroxyethyl isocyanurate and maleic anhydride are added, and the reaction is stirred for 40-50 minutes;
[0023] (3). Continue to heat up to 190-205°C, add benzoic acid monoethanolamine and Gur gum, and stir for 40-5...
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