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HIPS-g-MA共聚物对HIPS/PC共混物相容性、形态和拉伸性能的影响
引用本文:刘万军,王茁,杨慧丽,陈广新,刘景江. HIPS-g-MA共聚物对HIPS/PC共混物相容性、形态和拉伸性能的影响[J]. 高分子材料科学与工程, 2002, 18(6): 111-114
作者姓名:刘万军  王茁  杨慧丽  陈广新  刘景江
作者单位:高分子物理与化学国家重点实验室,中国科学院长春应用化学研究所,吉林,长春,130022
基金项目:国家重点基础研究发展规划——通用高分子材料高性能化的基础研究 (G19990 64 80 0 ),聚烯烃加工过程中的化学反应及其与性能间的关系 (G19990 64 80 6)
摘    要:研究了HIPS/PC共混物的相容性及HIPS-MA对HIPS(30)/PC(70)共混物的相容性、形态和拉伸性能的影响。DSC研究结果表明,HIPS/PC共混物中PS的玻璃化转变温度(Tg)不随组成而变化,而PC的Tg随其质量分数的降低逐渐向低温移动,说明HIPS/PC是部分相容体系。通过DSC、扫描电镜形态观察和拉伸性能测试结果发现,当HIPS-g-MA的含量低于7.5%时,共混物的相容性改善不明显,当其含量达到7.5%时,对共混物有明显的乳化作用,说明饱和的界面浓度在7.5%左右。HIPS-g-MA接枝共聚物在HIPS(30)/PC(70)共混物中的增容作用可能是酯交换反应原位生成的嵌段共聚物所致。

关 键 词:HIPS-g-MA 共聚物 HIPS/PS 共混物 相容性 形态 拉伸性能 影响 高抗冲聚苯乙烯 马来酸酐 接枝共聚物 聚碳酸酯 共混增容剂
文章编号:1000-7555(2002)06-0111-04
修稿时间:2001-01-16

THE EFFECTS OF HIPS-g-MA COPOLYMER ON THE COMPATIBILITY,MORPHOLOGY AND TENSILE PROPERTIES OF THE HIPS/PC BLEND
LIU Wan-jun ,WANG Zhou ,YANG Hui-li ,CHEN Guang-xin ,LIU Jing-jiang. THE EFFECTS OF HIPS-g-MA COPOLYMER ON THE COMPATIBILITY,MORPHOLOGY AND TENSILE PROPERTIES OF THE HIPS/PC BLEND[J]. Polymer Materials Science & Engineering, 2002, 18(6): 111-114
Authors:LIU Wan-jun   WANG Zhou   YANG Hui-li   CHEN Guang-xin   LIU Jing-jiang
Affiliation:LIU Wan-jun 1,WANG Zhou 2,YANG Hui-li 1,CHEN Guang-xin 1,LIU Jing-jiang 1
Abstract:The effects of HIPS-g-MA copolymer on the compatibility, morphology and tensile properties of the HIPS/PC blend were studied by DSC, SEM and tensile properties test. The PC/HIPS blend is partial compatible system due to the results of DSC that the T g of PS in HIPS/PC doesn't change with the composition of blend and the T g of PC increases with the increase in its fraction in mass. The HIPS-g-MA copolymer as a compatibilizer of PC/HIPS blend was prepared. The results of DSC, SEM and tensile properties show that the changes in compatibility is not obvious as the content of HIPS-g-MA below 7.5% and it plays a obvious emulsification as the content of HIPS-g-MA match 7.5%. This fact reflects that the saturated concentration of compatibilizer in interface of PC(70)/HIPS(30) blend is 7.5%. The emulsification of HIPS-g-MA copolymer in compatibility of PC/HIPS blend may be resulted by formation of the block copolymer of HIPS-b-PC during the blend processing.
Keywords:HIPS-g-MA copolymer  compatibilizer of PC/HIPS blends  compatibility of polymer blends  interface of polymer blends
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