抗冲击改性剂是一种改善高分子材料的低温脆化，赋予其更高的韧性的化学品。
介绍了各种抗冲击改性剂在PVC 塑料制品中的应用机理及现状。
The article introduces the application mechanism and actuality of all leinds resistant modifier in PVC plastic production.
介绍了茂金属催化的聚烯烃弹性体作为聚丙烯抗冲击改性剂的特点及应用效果。
The feature and application effect of the polyolefin elastomer using metallocene catalyst are discussed.
综述了几种主要的PVC抗冲击改性剂的生产与消费概况，并对PVC抗冲击改性剂的现状进行了分析。
The production and consumption situations of several chief impact modifiers for PVC are reviewed. The present states of these modifiers are analysed.
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