超临界二氧化碳发泡聚苯硫醚研究  

Study on Supercritical Carbon Dioxide Foaming PPS

作　　者：吴玉倩[1] 卫晓明[1] 王孝军[2] 杨杰[2,3] 

机构地区：[1]四川大学高分子科学与工程学院,四川成都610065 [2]四川大学分析测试中心,四川成都610065 [3]四川大学高分子材料工程国家重点实验室,四川成都610065

出　　处：《塑料工业》2012年第2期31-33,48,共4页China Plastics Industry

摘　　要：采用超临界二氧化碳间歇批处理成型方法成功制备了PPS泡沫材料,同时对所得发泡制品的形态、结晶性能和动态力学性能进行分析,发现在CO2浸泡过程中PPS发生了压力诱导结晶。在温度为80℃,压力为20 MPa情况下,在CO2中浸泡2 h的PPS样本可以发泡,而浸泡时间4 h和8 h的PPS由于结晶度较高不能发泡,为进一步探究该工艺成型发泡PPS奠定了理论基础。In this paper, PPS foam was prepared by intermittent batch forming of supercritical carbon dioxide. Crystallization property, dynamic mechanical property and the morphology of the PPS foam were studied. Pressure-induced crystallization occurred when PPS was soaked in CO2. The PPS soaked in CO2 for 2 h at 80℃ and a pressure of 20 MPa could foam while that soaked for 4 h and 8 h could not foam because of the high degree of crystallinity. This method laid theoretical foundation for the further study of PPS foam.

关 键 词：聚苯硫醚 复合泡沫材料 超临界二氧化碳 

分 类 号：TQ326.56[化学工程—合成树脂塑料工业]