Preparation method of benzene-free odor-free scratch-resistant polyurethane matt gloss white topcoat for woodware
A benzene-free, clean-smelling, anti-scratch technology, applied in polyurea/polyurethane coatings, coatings, etc., can solve problems that plague manufacturers and engineering technicians, fingerprints are not easy to disappear, and are not resistant to scratches, etc., to achieve excellent leveling Sex, improve gloss, accelerate the effect of convection
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Embodiment 1
[0025] According to the formula weight ratio, add 5 parts of mixed solvent into the dispersion tank, add 20 parts of 60% solid-free benzene-free alkyd resin, stir and dissolve evenly, then add 25 parts of titanium dioxide, 8 parts of heavy calcium powder, and matting powder 4 parts, 2.0 parts of dispersant, disperse at high speed for 30-40 minutes, grind to a fineness of ≤10μ in a horizontal sand mill, filter and pack for later use.
[0026] Add 28 parts of 60% solid-free benzene-free alkyd resin and 5 parts of mixed solvent into the paint bucket, stir and dissolve evenly, add the above-mentioned ground white pulp at medium speed, and add titanate modified organic 0.3 parts of silicon leveling agent, 0.3 parts of hand feeling leveling agent, 0.2 parts of antioxidant, 0.2 parts of defoaming agent, 2 parts of polyamide wax, stirred and passed the test, filtered and packaged to obtain a benzene-free clean-odor anti-scratch Two-component polyurethane wood matt white topcoat nail c...
Embodiment 2
[0028] Add 40 parts of TDI / TMP adduct, 25 parts of HDI trimer, and 35 parts of mixed solvent into the dispersion tank and stir evenly. After passing the test, filter and pack to produce benzene-free, clean-odor, anti-scratch, two-component polyurethane woodware Matt White Topcoat Part B.
[0029] According to the ratio of component A: component B = 1:0.5, the paint can be adjusted to the viscosity of spraying or brushing by adding diluent.
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