摘要
本文对硅灰石(CaSiO_3)填充软聚氯乙烯与碳酸钙(CaSiO_3)填充软聚氯乙烯的性能进行了比较,得出CaSiO_3是一种优于CaCO_3的补强剂和介电性能改良剂.通过钛酸酯偶联剂改性硅灰石粉,提高了软聚氯乙烯复合材料的耐寒性和断裂伸长率.
The volume resitivity of soft PVC composites containing natural wollastonite is augmented with the increasing of filler content. Strengthening action of the wollastonite on soft PVC is better than that of CaCO_3. The cald resistance and elongation at break of composites of soft PVC with wollastonite are increased markedly because the surface of wollastonite was treated by the titanate.
