拉伸工艺对聚苯硫醚薄膜结构与性能的影响  

Effect of Drawing Process on Structure and Properties of Polyphenylene Sulfide Films

作　　者：张守玉[1] 牛鹏飞[1] 黄宝奎[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材料科学技术研究所,四川成都610064 [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：《中国塑料》2012年第3期67-70,共4页China Plastics

摘　　要：采用哈克挤出机制备了聚苯硫醚片材,并通过自制拉膜机单轴拉伸制备聚苯硫醚薄膜。通过对拉伸工艺进行探讨,确定了聚苯硫醚薄膜的最佳拉伸温度在85～100℃。借助万能材料试验机、差示扫描量热仪、X射线衍射仪等手段研究了拉伸速率对薄膜结构与性能的影响。结果表明,随着拉伸速率的增加,薄膜在相应方向上的取向度增加,结晶度、拉伸强度和断裂伸长率均呈先增加后降低的趋势。Polyphenylene sulfide （PPS） sheets were prepared using a HAAKE extruder and then were uniaxially-stretched into PPS films. The processing technology of uniaxially-stretched PPS films was discussed and the optimum stretching temperature was determined between 85 and 100 ℃. According to the analysis results of universal material testing machine, differential scanning calorimetry and X-ray diffraction tests, the impact of stretching velocity on the structures and mechanical properties of the uniaxially-stretched films was studied. With increasing stretching velocity, the orientation degree of the films increased, but the crystallinity, tensile strength and elongation at break of the films increased firstly and then decreased.

关 键 词：聚苯硫醚薄膜 拉伸速率 取向度 结晶度 力学性能 

分 类 号：TQ320.721[化学工程—合成树脂塑料工业]