高抗冲聚苯乙烯的合成、改性与表征 Ⅰ. 搅拌条件对抗冲性能的影响  

Synthesis,Modification and Characterization of HIPS Ⅰ Influence of Agitation Conditions on Impact Properties of HIPS

作　　者：陈连清[1] 董正卿[1] 王志[1] 杨伟[1] 沈家瑞[1] 陈利杰 

机构地区：[1]陈?,?,董正卿1,王,杨,伟1,沈家瑞1,1,华南理工大学材料学院,广东广州510640,2,南海宝利玛工程塑料有限公司,广东南海528231,3,汕头海洋公司第一聚苯树脂公司,广东汕头515000

出　　处：《石油化工》2002年第9期725-729,共5页Petrochemical Technology

基　　金：.NULL.

摘　　要：采用本体接枝共聚法制备高抗冲聚苯乙烯(HIPS),测定反应动力学曲线,观察和分析相转变现象,并由此分析讨论搅拌条件对抗冲性能的影响。采用单一搅拌速率不能制得抗冲性能良好的HIPS,只有采用较高的预搅拌速率和较低的后搅拌速率,并在相转变后改变转速,才能使HIPS抗冲性能良好。采用TEM对所制备产品的相结构进行观察和表征。HIPS was prepared by the method of bulk graft-polymerization.The polymerization kinetics curves were determined,and the phase inversion phenomenon was observed and analyzed.The influence of agitation conditions on impact properties of HIPS was then discussed.High quality HIPS can only be obtained with a first stage of relatively high rate of prepolymerization agitation followed by a stage of relatively low rate of post polymerization agitation.The point of the rate of agitation changing from high to low was that of emergence of phase inversion.The phase structure was characterized by TEM.

关 键 词：高抗冲聚苯乙烯 合成 改性 表征 HIPS 搅拌条件 抗冲性能 反应动力学曲线 相转变 

分 类 号：TQ325.2[化学工程—合成树脂塑料工业]