Preparation method of rosin-based short-oil alkyd resin anti-corrosive enamel paint with high pitting potential
A technology of alkyd resin and anti-corrosion enamel, applied in the field of enamel, can solve the problems of low pitting potential, low pitting resistance, improper matching, etc.
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[0012] 1. Treatment of 6063 aluminum alloy sheet
[0013] The 6063 aluminum alloy sheet was polished with 1.0 μm and 0.3 μm alumina powder on a polishing cloth in turn, then placed in 5% hydrochloric acid for 5 minutes, then placed in deionized water for 5 minutes, and finally placed in anhydrous Sonicated in ethanol for 6 min and dried for later use.
[0014] 2. Preparation of anti-corrosion enamel with and without acrylpimaric acid (ethylenediamine) amide
[0015] Add 25 parts by weight of dry short oil alkyd resin, 2 parts by weight of acrylpimaric acid (ethylenediamine) amide and 50 parts by weight of o-xylene solvent into the reaction tank and stir evenly, then continue to add 15 parts by weight Talc powder, 15 parts by weight of bentonite, 2 parts by weight of dispersant polyethylene glycol 200, 2 parts by weight of leveling agent polyether modified polydimethylsiloxane interpolymer, 1 part by weight of drier Naphthenic acid iron salt is added together in the reaction ...
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