White board film matte UV coating and preparation method thereof
A matte, whiteboard technology, applied in the direction of polyurea/polyurethane coatings, coatings, etc., can solve the problems of insufficient wiping and durability, achieve uniform and stable paint film gloss, clear fonts, improve wear resistance and durability The effect of chemical properties
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Embodiment 1~3 and comparative example 1~2
[0044] Table 1 shows the compositions of the matte UV coatings for white board films in Examples 1-3 and Comparative Examples 1-2.
[0045] Table 1 The composition (unit: parts by weight) of the whiteboard film matte UV coating of Examples 1-3 and Comparative Examples 1-2
[0046]
[0047]
[0048] The preparation method of the whiteboard film matte UV coating of Examples 1-3 and Comparative Examples 1-2 comprises the following steps:
[0049] S1. Feed high-functional urethane acrylate resin, difunctional urethane acrylate resin, UV reactive diluent, UV photoinitiator, dispersant, leveling agent and butyl acetate into the reactor, and control the speed at 800-1000 rpm , and stir for 20-30min to mix evenly to obtain a mixed solution;
[0050] S2. Add organosilicon powder into the mixture of S1., stir for 20-30min, control the speed at 1000-2000 rpm, until the organosilicon powder is evenly dispersed, no agglomeration, no agglomeration; finally add ethyl acetate to adjust t...
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