徐德根,阳知乾,李林,刘建忠
XU De-gen,YANG Zhi-qian,LI Lin,LIU Jian-zhong

• 1:高性能土木工程材料国家重点实验室
• 2:江苏苏博特新材料股份有限公司

摘要(Abstract)：

采用含水的复合改性剂增塑聚乙烯醇(PVA),制备熔纺PVA纤维原丝。经冷拉伸3倍后,分别在160、220℃下进行热拉伸。研究了拉伸对纤维结构和表面、截面形貌的影响。结果表明:拉伸使纤维分子取向,结晶度升高;熔纺PVA纤维截面为圆形,拉伸后在纤维表面产生沿轴向的微孔,增加了纤维表面的粗糙度。
A hydrophilic plasticizer was used to modify the poly(vinyl alcohol)(PVA), and PVA precusor fi-bers were prepared by melt spinning process. PVA precusor fibers were cold-stretched by 3 times, and thenhot-stretched at 160 ℃ and 220 ℃ respectively. The influence of drawing process on fiber structure, sur-face and cross-section morphology was researched. Results showed that PVA fibers were stretched to pro-vide molecular orientation and increase crystallinity; the cross-section of PVA fibers was circular, micro-pores were generated micro-pores along the axial direction of PVA fibers surface after stretching; fiber sur-face roughness was also increased.

关键词(KeyWords)： 熔融纺丝;聚乙烯醇纤维;拉伸工艺;结构形态
melt spinning,poly(vinyl alcohol) fiber,drawing process,morphology

Abstract:

Keywords:

基金项目(Foundation): 江苏省自然科学基金项目(BK20141012;BK2011835)

作者(Author): 徐德根,阳知乾,李林,刘建忠
XU De-gen,YANG Zhi-qian,LI Lin,LIU Jian-zhong

DOI: 10.16090/j.cnki.hcxw.2014.12.001

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