ACS/Sb2O3复合材料制备方法对性能的影响

对采用原位悬浮聚合制备的苯乙烯一氯化聚乙烯一丙烯腈（ACS）共聚物／Sb2O3复合树脂、原位聚合苯乙烯一丙烯腈（SAN）共聚物／Sb2O3复合树脂与ACS树脂的共混物和ACS树脂／Sb2O3的直接共混物的力学性能和阻燃性能进行了研究比较。结果发现：原位聚合法制备的ACS／Sb2O3复合材料的性能优于其它两种方法制备的复合物；三种复合材料的冲击性能都劣于纯ACS材料；采用原位聚合方法，Sb2O3质量分数小于7％时，Sb2O3对复合材料有增强作用；当Sb2O3质量分数大于10％时，直接共混ACS／Sb2O3复合物的阻燃性能劣于其它两种方法制备的ACS／Sb203复合材料。

Influence of Preparation Method on Property of ACS/Sb2O3 Composite

The mechanical properties and flame retardancy of ACS/Sb_2O_3 composites were studied and compared, in which ACS/Sb_2O_3 composites were obtained by processing (1) ACS/Sb_2O_3 composite resin prepared by in-situ suspension polymerization, (2) mixture of ACS resin and SAN/Sb_2O_3 composite resin prepared by in-situ polymerization, (3) mixture of ACS resin and Sb_2O_3 particles by blending. The results showed that the properties of ACS/Sb_2O_3 composites prepared by in-situ polymerization were better than those of the others. All of the three kinds of composites showed inferior impact properties relative to pure ACS resin. ACS/Sb_2O_3 composites prepared by in-situ polymerization exhibited much higher tensile strength and flexural strength when the mass percentage of Sb_2O_3 was less than 7 %. As the mass percentage of Sb_2O_3 exceeded 10%, the flame retardancy of the composites prepared by blending was worse than those of the composites prepared by the other two methods.