喷丝头拉伸对聚甲醛纤维结构与性能的影响Effect of spinneret draft on structure and properties of polyoxymethylene fiber
金旺;李建华;
摘要(Abstract):
采用自主开发的聚甲醛(POM)熔融纺丝设备,在其他纺丝工艺不变的条件下,改变喷丝头拉伸倍数,制备POM纤维;研究了喷丝头拉伸倍数对POM初生纤维的取向度、后拉伸性能以及POM纤维力学性能的影响。结果表明:随着喷丝头拉伸倍数的增大,POM初生纤维的取向度呈现先上升后下降的趋势,而初生纤维的直径呈逐渐减小的趋势;喷丝头拉伸倍数为90时,整体工艺状况最佳,POM初生纤维的最大拉伸倍数达7.1,制备的POM纤维断裂强度为6.35 cN/dtex,断裂伸长率为13.5%。
关键词(KeyWords): 聚甲醛纤维;喷丝头拉伸;结构;性能
基金项目(Foundation): 唐山市科技计划项目(16110213A)
作者(Author): 金旺;李建华;
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DOI:
参考文献(References):
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