超高相对分子质量聚乙烯在十氢萘中的溶胀过程研究  

Swelling Process of UHMWPE in Decahydronaphthalene

作　　者：杨潇[1,2] 王新威 陈东辉[2] 孙勇飞[1,4] 巩明方 李建龙 

机构地区：[1]上海化工研究院,上海200062 [2]上海应用技术学院化学与环境工程学院,上海201418 [3]上海联乐化工科技有限公司,上海201512 [4]上海市聚烯烃催化技术重点实验室,上海200062

出　　处：《上海塑料》2015年第2期55-58,共4页Shanghai Plastics

基　　金：上海市军民结合专项(JMJH2014018)资助

摘　　要：研究了不同相对分子质量、不同质量分数的超高相对分子质量聚乙烯(UHMWPE)在十氢萘中的溶胀过程;采用溶胀后的混合液加入螺杆挤出机的压力变化来判断溶胀效果。结果表明:树脂与十氢萘的混合液达到溶胀温度时,混合液的搅拌扭矩开始跃升,波动幅度较大;经过一段时间的溶胀后,混合液的扭矩达到稳定并上升,溶胀过程结束;不同溶胀状态下喂入螺杆挤出机的挤出压力不同,挤出压力还与溶胀液的质量分数有关。Effects of different relative molecular mass and various mass fraction of UHMWPE on swelling process in decahydronaphthalene were studied, of which the results were determined by pressure of extruder. The results indicate that the stirring torque of mixture increases when it reaches swelling temperature, which fluctuats heavily. Swelling process ends after a period when the stirring torque increases stably. Pressure of extruder varies under different swelling conditions and various mass fraction of mixture.

关 键 词：超高相对分子质量聚乙烯 十氢萘 溶胀过程 双螺杆挤出机 挤出压力 

分 类 号：TQ342.61[化学工程—化纤工业]