增韧PPS/PA46合金的性能与微观结构研究  

Properties and Micro-structure of Toughened PPS/PA46 Alloy

作　　者：张志军[1,2] 戴文利[1] 王全兵[2] 

机构地区：[1]湘潭大学化学学院,湖南湘潭411105 [2]株洲时代新材料科技股份有限公司,湖南株洲412007

出　　处：《工程塑料应用》2012年第11期27-30,共4页Engineering Plastics Application

摘　　要：制备了系列增韧聚苯硫醚(PPS)/聚酰胺(PA)46合金,探讨了增容剂用量对合金性能的影响。用扫描电子显微镜观察对比了PPS,PA46,PPS/PA46合金的断面形貌,发现PPS断面光滑平整,PA46断面较为粗糙,未加增容剂时,合金断面虽然有所改变,但仍属于脆性断裂;加入增容剂后,PA46与PPS的两相界面变得模糊,断面形态发生较大的变化,断面逐渐变得粗糙不平,说明合金组分间的相容性有很大提高,外力被较好地传递。可以用银纹-剪切带增韧机理来解释PPS/PA46/SEBS-g-MAH合金的增韧。A series of PPS / PA46 alloy were prepared, the effect of compatibilizer content on the performance of the alloy were discussed, and its cross-section was compared with pure PPS and PA46 by SEM. It was found that PPS had smooth section, while PA46 had rough section, and there was some change about the cross-section of alloy without adding compatibilizer, but it also underwent brittle rupture. The interface of dispersed phase PA46 and PPS became obscuring and the section became rough with the addition of compatibilizer, which illustrated the obvious compatibility improvement, and the impact strength increased for the better transfer of external force. The toughness mechanism of PPS/PA46 /SEBS-g-MAH alloy belonged to the mechanism of ＂craze-shear band＂ toughness.

关 键 词：PPS PA46 增容剂 微观结构 冲击韧性 

分 类 号：O63-01[理学—高分子化学]