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采用熔融共混的方法制备高胶粉/丙烯腈-丁二烯-苯乙烯共聚物(ABS)/纳米二氧化硅多元增韧复合材料。对复合材料结构、冲击强度、拉伸性能及熔体流动性能进行表征。结果表明:适量纳米二氧化硅刚性粒子在共混体系中均匀分散可提供补强效果,并且不影响体系的流动性,不会破坏共混体系结构。当纳米二氧化硅添加量为0.5 phr时,复合材料综合性能达到最佳,增韧效果最好,冲击强度提高30%以上。
The high rubber powder / acrylonitrile-butadiene-styrene copolymer (ABS) / nano-silica multi-toughened composites were prepared by melt blending method. The composite structure, impact strength, tensile properties and melt flow properties were characterized. The results showed that the appropriate amount of nano-sized silicon dioxide particles dispersed uniformly in the blends could provide reinforcement without affecting the fluidity of the blends and not damaging the blends. When the dosage of nanosilica is 0.5 phr, the composites have the best comprehensive properties, the toughening effect is the best and the impact strength is increased by more than 30%.