A kind of preparation method of anti-ultraviolet sunshade polycarbonate plate
A polycarbonate, anti-ultraviolet technology, applied in the field of polymer materials, can solve the problems of poor ultraviolet resistance and decreased strength, and achieve the effect of high ultraviolet resistance and good toughness
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Embodiment 1
[0028] The first step: by weight, the mullite micropowder (particle size range is 0.5 ~ 5μm, content ≥ 98%, specific surface area ≥ 2m 2 ·g ～1 ) 10 parts, 3 parts of cationic monomer methacryloyloxyethyl trimethyl ammonium chloride and 60 parts of methylene chloride are mixed, and then in N 2 Under the protection of , add 5 parts of silane coupling agent KH ~ 570, heat up to 80 ℃, carry out the reaction, the reaction time is 3 hours, after the end, the temperature is filtered, the filter cake is washed with ethanol, and dried to obtain the coupling agent modified Molai stone powder;
[0029] Step 2: In parts by weight, the coupling agent-modified mullite micropowder was added to 300 parts of water, and then 30 parts of acrylamide, 2-acryloyloxy-2-methylpropanesulfonic acid 5 parts of anionic monomer, 4 parts of organosilicon monomer dimethyldichlorosilane, 5 parts of zirconia powder, 4 parts of chain extender trimethylolpropane and 3 parts of azo initiator azoisobutylcyanofo...
Embodiment 2
[0032] The first step: by weight, the mullite micropowder (particle size range is 0.5 ~ 5μm, content ≥ 98%, specific surface area ≥ 2m 2 ·g ～1 ) 20 parts, 5 parts of cationic monomer methacryloyloxyethyl trimethyl ammonium chloride and 80 parts of dichloromethane are mixed, and then in N 2 Under the protection of 10 parts of silane coupling agent KH~570, add 10 parts of silane coupling agent KH~570, heat up to 90 ℃, carry out the reaction, the reaction time is 5 hours, after the end, the temperature is lowered and filtered, the filter cake is washed with ethanol, and dried to obtain the coupling agent modified Molai stone powder;
[0033] Step 2: In parts by weight, the coupling agent-modified mullite micropowder is added to 400 parts of water, followed by 50 parts of acrylamide, 2-acryloyloxy-2-methylpropanesulfonic acid 10 parts of anionic monomer, 10 parts of organosilicon monomer dimethyldichlorosilane, 10 parts of zirconia powder, 8 parts of chain extender trimethylolpr...
Embodiment 3
[0036] The first step: by weight, the mullite micropowder (particle size range is 0.5 ~ 5μm, content ≥ 98%, specific surface area ≥ 2m 2 ·g ～1 ) 10-20 parts, 4 parts of cationic monomer methacryloyloxyethyl trimethyl ammonium chloride and 70 parts of dichloromethane are mixed, and then in N 2 Under the protection of , add 8 parts of silane coupling agent KH ~ 570, heat up to 85 ° C, and carry out the reaction, the reaction time is 4 hours, after the end, the temperature is filtered, the filter cake is washed with ethanol, and dried to obtain the coupling agent modified Molai stone powder;
[0037] Step 2: In parts by weight, the coupling agent-modified mullite micropowder is added to 350 parts of water, and then 40 parts of acrylamide, 2-acryloyloxy-2-methylpropanesulfonic acid, 7 parts of anionic monomer, 8 parts of organosilicon monomer dimethyldichlorosilane, 7 parts of zirconia powder, 6 parts of chain extender trimethylolpropane and 5 parts of azo initiator azoisobutylc...
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