Rigid PVC (polyvinyl chloride) talcum powder filling system electrician casing

The invention discloses a rigid PVC (polyvinyl chloride) talcum powder filling system electrician casing and a preparation method thereof. The rigid PVC talcum powder filling system electrician casing is prepared from by weight, 50-80 parts of PVC resin, 20-40 parts of talcum powder, 6-12 parts of chlorinated polyethylene, 1-4 parts of tribasic lead sulfate, 0.5-1.5 parts of dibasic lead phosphite, 0.2-1 part of calcium stearate, 0.1-0.5 part of stearic acid, 0.2-0.8 part of PE (poly ethylene) wax, 0.5-2 parts of ACR assistant and 1-2 parts of rutile titanium dioxide. The formula is further optimized by adding the talcum powder, so that the electrician casing is good in rigidity, creep property, shrinkage performance and compression resistance, and the preparation method is simple and easy to implement. 本发明公开了种硬质PVC滑石粉填充体系电工套管及其制备方法，其组成原料的重量份为：PVC树脂50-80份，滑石粉20-40份，氯化聚乙烯6-12份，三碱硫酸铅1-4份，二碱式亚磷酸铅0.5-1.5份，硬脂酸钙0.2-1份，硬脂酸0.1-0.5份，PE蜡0.2-0.8份，ACR助剂0.5-2份，金红石型钛白粉1-2份；本发明通过对配方的进步优化，在配方中添加滑石粉，使得电工套管具有较好的刚性、蠕变性能、热收缩性能和抗