The physical and mechanical properties of the rigid PVC is improved through the addition of such modifiers as PE-C, CaCO3 ,etc. and the flame-returdant pliable condiut for construction is produced.

• 通过在聚氯乙烯中添加氯化聚乙烯、碳酸钙、三氧化二锑等改性剂改善硬质聚氯乙烯的物理力学性能后,生产出建筑用无增塑阻燃聚氯乙烯冷弯穿线管。