聚苯乙烯/CeO_2纳米复合微球的粒径及其影响因素  

A study of particle diameter and distribution of polystyrene/CeO_2 nanocomposites microspheres

作　　者：席宝信[1] 邢强 王益亨[1] 陈彦模[1] 朱美芳[1] 张瑜[1] 

机构地区：[1]纤维材料改性国家重点实验室

出　　处：《化工新型材料》2005年第7期29-31,共3页New Chemical Materials

基　　金：国家"863"计划项目(2002AA302616);上海市纳米科技研究开发与产业化专项(0219nm039)

摘　　要：采用原位悬浮聚合法制备了聚苯乙烯/CeO2纳米复合微球。讨论了引发剂浓度、CeO2纳米粒子含量、分散剂聚乙烯醇浓度及复配分散剂等对纳米复合微球粒径及其分布的影响。结果表明,随着引发剂浓度和CeO2纳米粒子含量的增加,纳米复合微球粒径变小,粒径分布变窄;随着复配分散剂中聚甲基丙烯酸钠含量的增加,粒子粒径变小,粒径分别变窄。制得的聚苯乙烯/CeO2纳米复合微球粒径可控。Polystyrene/CeO2 nanocomposite microspheres were produced by in situ suspension polymerization.The effects of initiator, the content of CeO2 nanoparticles, dispersing agent, and formulated dispersing agents on the particle diameter and distribution of polystyrene/CeO2 nanocomposites microspheres were studied. The results indicated that the average particle diameter decreases with the increase of the content of initiator and CeO2 nanoparticles,and the size distributions become narrow. With the increase of the content of polysodium methacrylate in the formulated dispersing agents, the particle diameter and distribution of Polystyrene/CeO2 nanocomposites decreases. And the particle diameter and distribution of polystyrene/CeO2 nanocomposites were controlled.

关 键 词：聚苯乙烯塑料 CeO2纳米复合微球 粒径 原位悬浮聚合法 制备方法 引发剂 

分 类 号：TQ325.2[化学工程—合成树脂塑料工业] TB383[一般工业技术—材料科学与工程]