SEBS-g-MAH增韧聚苯硫醚性能研究  

Research on Toughening of PPS/SEBS-g-MAH

作　　者：高西萍[1] 张辉[1] 易俊霞[1] 李瑞海[1] 

机构地区：[1]四川大学高分子科学与工程学院,四川成都610065

出　　处：《塑料工业》2009年第3期71-74,共4页China Plastics Industry

摘　　要：采用熔融挤出法制备了聚苯硫醚(PPS)与马来酸酐接枝苯乙烯-乙烯-丁二烯-苯乙烯嵌段共聚弹性体(SEBS-g-MAH)的共混物,并考察了共混物的热行为、力学性能、相形态及增韧机理。结果表明,两组分的玻璃化温度有相互靠近的趋势,显示PPS和SEBS-g-MAH部分相容;随着SEBS-g-MAH用量增加,共混物的韧性得到很好的提高,当SEBS-g-MAH的质量分数为30%时,其冲击强度达到7.5kJ/m2。PPS/SEBS-g-MAH/Kevlar纤维共混体系中,SEBS-g-MAH既可以作为增韧剂,又可以作为两相相容剂来提高PPS基体和Kevlar纤维的界面黏结能力,使共混物达到增强增韧的效果。This paper discussed the mechanic properties and compatibility of polyphenylene sulfide/maleic anhydride grafted styrene-ethylene-butadiene-styrene （PPS/ SEBS-g-MAH） system. Thermal behavior of the blends was characterized by means of DSC. The results showed the glass transition temperatures of PPS and SEBS-g-MAH in the blends tended to approach each other, which indicated the two materials were partially compatible in the blends. Mechanic property investigation results showed thai the notched impact strength of the system increase with the increase of M-SEBS content, which attended 7. 5kJ/m^2 when the ratio was 70/30. Besides these, in the PPS/Kevlar Fiber/ SEBS-g-MAH blends, SEBS-g-MAH could enhance interracial adherence between the matrix and fiber, and made the mechanical properties of the blends well increased.

关 键 词：聚苯硫醚 苯乙烯-乙烯-丁二烯-苯乙烯接枝马来酸酐共聚物 KEVLAR纤维 增韧 

分 类 号：TQ326.56[化学工程—合成树脂塑料工业]