Preparation process and application of modified composite plastic
A technology of composite plastics and preparation process, which is applied in the field of composite materials to achieve the effect of high tensile strength and improved performance
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Embodiment 1
[0023] (1) Put 18 parts of ethylene-vinyl acetate copolymer, 10 parts of titanium dioxide, 6 parts of boron nitride, and 2 parts of fatty acid methyl ester sulfonate into a ball mill for high-energy ball milling. The ball mill speed is 350r / min, and the ball milling time is 3h. Obtain ball milling mixture;
[0024] (2) Mix 50 parts of polypropylene, 35 parts of brominated polystyrene, 16 parts of triphenyl phosphate, and 5 parts of tribasic sodium phosphate, and add to 200 parts of N,N-dimethylformaldehyde with a concentration of 5%. In the amide solution, stir at 80°C for 2 hours, filter, and wash with deionized water to remove N,N-dimethylformamide to obtain a primary modified mixture;
[0025] (3) Add 5 parts of styrene-maleic anhydride copolymer and 150 parts of deionized water to the primary modified mixture obtained in step (2), raise the temperature to 85° C., and react for 10 hours under magnetic stirring, then Then add 8 parts of decyl methacrylate and slowly raise t...
Embodiment 2
[0030] (1) Put 20 parts of ethylene-vinyl acetate copolymer, 13 parts of titanium dioxide, 7 parts of boron nitride, and 3 parts of fatty acid methyl ester sulfonate into a ball mill for high-energy ball milling. The ball mill speed is 350r / min, and the ball milling time is 4h. Obtain ball milling mixture;
[0031] (2) Mix 55 parts of polypropylene, 40 parts of brominated polystyrene, 17 parts of triphenyl phosphate, and 6 parts of tribasic sodium phosphate, and add to 200 parts of N,N-dimethylformaldehyde with a concentration of 5%. In the amide solution, stir at 80°C for 2.5 hours, filter, and wash with deionized water to remove N,N-dimethylformamide to obtain a primary modification mixture;
[0032] (3) Add 7 parts of styrene-maleic anhydride copolymer and 150 parts of deionized water to the primary modification mixture obtained in step (2), raise the temperature to 90° C., and react for 15 hours under magnetic stirring, then Then add 10 parts of decyl methacrylate and slo...
Embodiment 3
[0037](1) Put 22 parts of ethylene-vinyl acetate copolymer, 15 parts of titanium dioxide, 8 parts of boron nitride, and 4 parts of fatty acid methyl ester sulfonate into a ball mill for high-energy ball milling. The ball mill speed is 350r / min, and the ball milling time is 5h. Obtain ball milling mixture;
[0038] (2) Mix 60 parts of polypropylene, 45 parts of brominated polystyrene, 18 parts of triphenyl phosphate, and 8 parts of tribasic sodium phosphate, and add to 200 parts of N,N-dimethylformaldehyde with a concentration of 5%. In the amide solution, stir at 80°C for 3 hours, filter, and wash with deionized water to remove N,N-dimethylformamide to obtain a primary modification mixture;
[0039] (3) Add 9 parts of styrene-maleic anhydride copolymer and 150 parts of deionized water to the primary modified mixture obtained in step (2), raise the temperature to 95° C., and react under magnetic stirring for 20 hours, then Then add 12 parts of decyl methacrylate and slowly rai...
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