The present progress of PVC impact modifiers at home and abroad is reviewed in this paper,the impact modifiers commonly used in PVC processing are introduced in detail.

• 综述了聚氯乙烯抗冲击改性剂的国内外发展近况，并对常用的抗冲改性剂在聚氯乙烯加工中的使用情况作了详细的介绍。