PVC/SBS/MBS三元共混体系的力学性能及光学透明性研究  

Study on Mechanical Properties and Optical Transparence of PVC/SBS/MBS Blend

作　　者：刘春[1] 邹华维[1] 刘鹏波[1] 

机构地区：[1]高分子材料工程国家重点实验室四川大学高分子研究所,四川成都610065

出　　处：《塑料工业》2007年第2期17-19,共3页China Plastics Industry

摘　　要：采用冲击实验、拉伸实验、超景深三维显微镜、扫描电镜和分光光度计等手段,对PVC/SBS/MBS三元共混体系的冲击强度、拉伸强度、形态结构以及光学透明性等进行了研究。实验结果表明,MBS能有效改善PVC/SBS共混体系的界面相容性。当SBS和MBS的总量不变时,随着MBS相对含量的增加,共混体系的缺口冲击强度逐渐增加,透光率在m(MBS)/m(SBS)=20/80时达到最大值,光学透明性能最好。The impact strength, tensile strength, morphological structure and optical transparence of PVC/SBS/ MBS blend were studied by means of impact test, tensile test, optical microscope, SEM and spectrophotometer. The results showed the addition of MBS to PVC/SBS could improve the interfacial compatibility of the blend. When the total content of SBS and MBS was kept unchanged, the notched Izod impact strength of PVC/SBS/MBS blend increased with the increase of the content of MBS, and the transparency of the blend reached to the maximum value when the mass ratio of MBS/SBS was 20/80, having the best optical transparence.

关 键 词：聚氯乙烯 苯乙烯-丁二烯-苯乙烯共聚物 相容性 透光率 

分 类 号：TQ320.7[化学工程—合成树脂塑料工业]