Waterborne potassium silicate zinc-rich primer capable of preventing easy cracking and applied to surface treatment of steel structure and preparation method of zinc-rich primer
A technology of surface treatment and zinc-rich primer, applied in the direction of alkali metal silicate coatings, coatings, anti-corrosion coatings, etc., can solve the problems of poor decorative effect, too fast coating failure, easy sedimentation of zinc powder, etc., to achieve Enhance repulsion and steric hindrance, improve flexibility and good dispersion
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[0015] A water-based potassium silicate zinc-rich primer for the surface treatment of steel structures that is not easy to crack, made of the following raw materials in parts by weight: 106 flake zinc powder, 13 potassium silicate, 6.4 styrene-acrylic emulsion, 1.4 grape seed oil, and propylene glycol Trimethoxysilane 3.5, terbium chloride 1.3, anti-crack fiber 6, paraffin wax 2, stainless steel powder 9, tallow amine 0.8, nano aluminum nitride 2.4, boric acid 0.3, deionized water 24.
[0016] The preparation method of the described a kind of non-cracking steel structure surface treatment water-based potassium silicate zinc-rich primer comprises the following steps:
[0017] (1) Slowly add grape seed oil dropwise to the styrene-acrylic emulsion, heat up to 70-80°C, react at constant temperature for 20-30 minutes, cool to 50-60°C, add nano-aluminum nitride for ultrasonic treatment for 25-30 minutes, add tallow Continue ultrasonic treatment with amine for 10-15 minutes to obtain...
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