Translucent orange-brown calcined Sienna odorless polyurethane wood lacquer and preparation method thereof
A brown, translucent technology, applied in the field of preparation of two-component polyurethane wood lacquer, can solve the problems of fingerprints not easy to disappear, heavy metals exceeding the standard, furniture with peculiar smell, etc., and achieve the effect of improving scratch resistance, low toxicity, and not easy to sag
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Embodiment 1
[0017] According to the formula weight ratio, add 22.5 parts of mixed solvent into the dispersion tank, add 50 parts of 70% solid-containing alkyd resin, add 7 parts of DISPERBYK-110 color paste dispersant and stir evenly, slowly add 20 parts of translucent orange-brown calcined Raw sodium powder, 0.2 part of defoamer, 0.3 part of anti-sedimentation agent, then disperse at a high speed of 800-1000r / min for 45-60 minutes, move to a horizontal sand mill and grind for 5-8 times until the fineness of the color paste When the particle size reaches the requirement of ≤5μ, it is transferred to the paint mixing bucket for defoaming and viscosity adjustment, and is filtered and packaged to obtain orange-brown color paste.
Embodiment 2
[0019] According to the formula weight ratio, add 22.8 parts of mixed solvent into the dispersion tank, add 55 parts of 70% solid-containing alkyd resin, stir evenly, add 5 parts of matting powder, 0.5 parts of dispersant, disperse at high speed for 30-40 minutes, and disperse at low speed Add 15 parts of orange-brown color paste, 0.3 parts of titanate-modified silicone chelating leveling agent, 0.2 parts of fluorine-modified acrylic leveling agent, 0.2 parts of modified silicone defoamer, and 1 part of anti-settling agent under stirring. After stirring and passing the test, filter and pack to obtain the translucent orange brown calcined sodium deodorizing type polyurethane wood lacquer A component.
Embodiment 3
[0021] Add 40 parts of TDI / TMP adduct, 30 parts of HDI trimer, and 30 parts of mixed solvent into the dispersion barrel and stir evenly. After passing the test, filter and pack to obtain a translucent orange-brown calcined sodium-clean taste polyurethane wood lacquer B component.
[0022] Mix the paint according to the ratio of component A: component B = 1:0.5, and add thinner to adjust the viscosity to spray or brush.
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