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.
出处
《中国塑料》
CAS
CSCD
北大核心
2012年第3期67-70,共4页
China Plastics
关键词
聚苯硫醚薄膜
拉伸速率
取向度
结晶度
力学性能
polyphenylene sulfide film
stretching velocity
orientation degree
crystallinity
mechanical property
