摘要
对超高分子量聚乙烯(UHMWPE)冻胶纤维进行萃取、干燥是改善其拉伸性能的主要技术关键.萃取、干燥的不同工艺条件都会较大地影响未拉伸干冻胶纤维的结构及其性能.其中主要有:萃取时间、萃取次数、干燥温度和干燥收缩率.本文借助电子强力试验仪、扫描电子显微镜(SEM)、X-射线衍射(WAXD、SAXS)和声速仪(SP)等对以三氯三氟乙烷(F113)、溶剂油120~#为萃取剂经不同萃取干燥工艺处理的冻胶纤维结构进行了测试,并对上述萃取、干燥处理过的冻胶纤维经超倍拉伸后所得的拉伸纤维性能进行了测试,得到了萃取、干燥的最佳工艺条件为:充分萃取、适温干燥、保持足够的干燥收缩率.
The extracting and Drying of UHMW PE gel-spun fibers is an effective way to improve its drawability.The structure and properties of PE fibers are affected greatly by extracting and drying process,such as ex-tracting time,extracting times,drying temperature and drying shrinkage ratio.These are studied by meansof SEM,WAXD,SAXS and SP,and then the most profitable extracting and drying parameters are obtained.
出处
《合成纤维工业》
CAS
CSCD
1993年第2期25-30,共6页
China Synthetic Fiber Industry
关键词
冻胶纤维
萃取
干燥
聚乙烯纤维
超高分子量
UHMWPE gel-spun fiber
extraction
drawability
drying shrinkage ratio
