Paint composition and preparation and using methods thereof
A composition and coating technology, which is applied in epoxy resin coatings, coatings, and devices for coating liquid on the surface, etc., can solve the problems of large shrinkage of the paint film, residue, and influence on the weather resistance of the paint film, so as to improve the paint film The effect of adhesion and good mechanical properties
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[0055] The present invention also provides a preparation method of the above-mentioned coating composition, comprising:
[0056] Add water-based epoxy acrylate, photoinitiator and cross-linking agent to the auxiliary agent under stirring state, and then filter.
[0057] Concrete preparation process is preferably as follows:
[0058] a) Put the leveling agent and defoamer in the mixer and mix evenly, set the stirring speed to 700rpm-900rpm, stir for 10min-20min, add water-based epoxy acrylate, and increase the stirring speed to 1200rpm-1400rpm and stir 2h~4h.
[0059] b) Add co-solvent, photoinitiator and water-based crosslinking agent to the mixture obtained in step a, set the stirring speed to 1400rpm-1600rpm, stir for 25min-40min and then filter with a 200-mesh filter to obtain a water-based epoxy acrylate coating.
[0060] The using method of coating composition provided by the invention is as follows:
[0061] After the coating composition is sprayed on the surface of t...
Embodiment 1~ Embodiment 6
[0075] The coating composition of above-mentioned 6 embodiments all is to prepare according to the following method:
[0076] 1. Add the leveling agent and defoamer to the paint tank, set the stirring speed to 800rpm, stir for 15 minutes, add water-based epoxy acrylate, set the stirring speed to 1300rpm, and stir for 2.5 hours.
[0077] 2. Add a cosolvent, a photoinitiator and a crosslinking agent to the mixture obtained in step 1, set the stirring speed to 1500 rpm, stir for 30 minutes, and filter with a 200-mesh filter to obtain a coating composition.
[0078] Above-mentioned 6 embodiment raw materials and consumption are listed in Table 2.
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