▎ 摘　　要

NOVELTY - High strength bismaleimide modified calcium carbonate filler includes 200 pts. wt. calcium carbonate powder, 4-5 pts. wt. MQ silicone resin, 1-2 pts. wt. vinyl triethoxysilane, 1-2 pts. wt. graphene, 80-100 pts. wt. hydrogen peroxide, 8-10 pts. wt. peroxidase, 6-8 pts. wt. polyethylene glycol octylphenyl ether, 200-250 pts. wt. dimethylformamide, 1-2 pts. wt. 5-hydroxylevulinate, 2-3 pts. wt. 4,4-diphenylmethane bismaleimide, 2-3 pts. wt. diethyl malonate, 0.5-1 pt. wt. catalyst, 1-2 pts. wt. cetyltrimethylammonium bromide and 1-2 pts. wt. titanium dioxide. USE - High strength bismaleimide modified calcium carbonate filler. ADVANTAGE - The product has good dispersibility, good affinity with organic polymer and good filling performance. DETAILED DESCRIPTION - High strength bismaleimide modified calcium carbonate filler comprises 200 pts. wt. calcium carbonate powder, 4-5 pts. wt. MQ silicone resin, 1-2 pts. wt. vinyl triethoxysilane, 1-2 pts. wt. graphene, 80-100 pts. wt. hydrogen peroxide, 8-10 pts. wt. peroxidase, 6-8 pts. wt. polyethylene glycol octylphenyl ether, 200-250 pts. wt. dimethylformamide, 1-2 pts. wt. 5-hydroxylevulinate, 2-3 pts. wt. 4,4-diphenylmethane bismaleimide, 2-3 pts. wt. diethyl malonate, 0.5-1 pt. wt. catalyst, 1-2 pts. wt. cetyltrimethylammonium bromide, 1-2 pts. wt. titanium dioxide, 2-3 pts. wt. bis(isooctyl thioglycolate)dimethyltin, 2-3 pts. wt. sodium lignosulfonate, 2-3 pts. wt. hydroxyl silicone oil, acetone and deionized water. An INDEPENDENT CLAIM is included for preparation of high strength bismaleimide modified calcium carbonate filler comprising: (A) mixing calcium carbonate powder, MQ silicone resin, vinyl triethoxysilane and graphene and grinding for 15-20 minutes and sieving into 150-200 mesh to obtain mixture; (B) mixing peroxidase, hydrogen peroxide, polyethylene glycol octylphenyl ether and the prepared mixture, stirring at 30-40 degrees C for 30-40 minutes and introducing active hydroxyl groups on its surface to obtain aliquot of active hydroxyl mixture; (C) ultrasonically dispersing active hydroxy mixture in dimethylformamide, adding 5-hydroxylevulinate, 4,4-diphenylmethane bismaleimide, diethyl malonate and catalyst, reacting at 70-80 degrees C for 8-10 hours to obtain bismaleimide polyimide prepolymer-calcium carbonate; and (D) adding the remaining components to bismaleimide polyimide prepolymer-calcium carbonate, performing ultrasonic treatment for 2-3 hours, filtering, washing with deionized water and acetone for 2-3 times, drying at 50-60 degrees C, grinding for 20-30 minutes and sieving into 150-200 mesh.