| 拉伸对熔纺聚乙烯醇纤维结构形态的影响 |
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| 引用本文： | 徐德根,阳知乾,李 林,刘建忠.拉伸对熔纺聚乙烯醇纤维结构形态的影响[J].合成纤维,2014(12):1-4. |
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| 作者姓名： | 徐德根 阳知乾 李 林 刘建忠 |
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| 作者单位： | （高性能土木工程材料国家重点实验室，江苏苏博特新材料股份有限公司，江苏 南京 211103） |
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| 基金项目： | 江苏省自然科学基金项目(BK20141012;BK2011835) |
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| 摘 要： | 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。
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| 关 键 词： | 熔融纺丝 聚乙烯醇纤维 拉伸工艺 结构形态 |
Effect of Drawing Process on the Morphology of Melt-Spun Poly(vinyl alcohol) Fibers |
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| XU De-gen,YANG Zhi-qian,LI Lin,LIU Jian-zhong.Effect of Drawing Process on the Morphology of Melt-Spun Poly(vinyl alcohol) Fibers[J].Synthetic Fiber in China,2014(12):1-4. |
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| Authors: | XU De-gen YANG Zhi-qian LI Lin LIU Jian-zhong |
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| Affiliation: | (State Key Laboratory of High Performance Civil Engineering Materials, Jiangsu Sobute New Materials Co.Ltd., Nanjing 211103, Jiangsu, China) |
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| Abstract: | 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. |
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| Keywords: | melt spinning poly(vinyl alcohol) fiber drawing process morphology |
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