The invention relates to a high-gloss, scratch-resistant and heat-resistant PMMA composite material and a preparation method thereof. The high-gloss, scratch-resistant and heat-resistant PMMA composite material comprises, in parts by weight, PMMA, a toughener, a compatibilizer, a heat-resistant agent, a brightener and an auxiliary agent; the toughener has a core-shell structure, with the outer shell being a copolymer of styrene and acrylonitrile and the inner core being organosiloxane and acrylic rubber; the particle size of the toughener is 80-120 nm; the compatibilizer is MABS; the heat-resistant agent is a copolymer of α-methylstyrene and acrylonitrile; the brightener is EBS. The preparation method is as follows: mixing all components uniformly according to weight ratio, and performing extrusion and granulation in a twin-screw extruder to obtain the high-gloss, scratch-resistant and heat-resistant PMMA composite material. The preparation method of the invention is simple, and the prepared PMMA composite material has the characteristics of high gloss, scratch resistance and high heat resistance temperature.
Country Code: CN
Application Number: CN202311827239.1
