| 萃取、干燥和拉伸条件对UHMWPE冻胶丝的影响 |
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| 引用本文： | 程玉洁,赵国樑. 萃取、干燥和拉伸条件对UHMWPE冻胶丝的影响[J]. 高科技纤维与应用, 2009, 34(6): 10-14,30 |
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| 作者姓名： | 程玉洁 赵国樑 |
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| 作者单位： | 1. 北京服装学院,材料科学与工程学院,北京,100029
2. 北京服装学院,材料科学与工程学院,北京,100029;北京市服装材料研究开发与评价重点实验室,北京,100029 |
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| 摘 要： | 探讨了超高相对分子质量聚乙烯冻胶丝在后续拉伸过程中的萃取、干燥和拉伸条件对拉仲性能和结构性能的影响。结果表明萃取时间越长拉伸效果越好，萃取浴比在20：1、干燥温度在40℃、干燥时间在40min和拉伸速率为0．5m／min时拉伸效果最好。通过对冻胶丝SEM观察可以看出，萃取温度越高，冻胶丝表面越容易形成沟槽；拉仲温度越高，冻胶丝表面越光滑；拉伸速率越大，冻胶丝表面越容易形成沟槽。还通过对经过拉仲后的纤维进行X-射线研究，得出结论：随着萃取温度和萃取时间以及拉伸温度的升高，纤维结晶度升高。
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| 关 键 词： | 超高相对分子质量聚乙烯 冻胶丝 萃取 干燥 拉伸 结晶度 |
Effects of Extraction,Drying and Stretching Conditions On the UHMWPE Gel-spun Fibers |
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| CHENG Yu-jie,ZHAO Guo-liang. Effects of Extraction,Drying and Stretching Conditions On the UHMWPE Gel-spun Fibers[J]. Hi-Tech Fiber & Application, 2009, 34(6): 10-14,30 |
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| Authors: | CHENG Yu-jie ZHAO Guo-liang |
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| Affiliation: | CHENG Yu-jie, ZHAO Guo-liang (1. College of Materials Science ＆ Engineering, Beijing Institute of Fashion Technology, Beijing 100029 China; 2. Beijing Key Laboratory of Clothing Material R＆D and Assessment, Beijing Institute of Fashion Technology, Beijing 100029 China) |
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| Abstract: | The effects of extraction, drying and stretching conditions and the maximum draw ratio, structure and properties of UHMWPE gel-spun fibers were discussed. The results show that the longer the extraction time, stretch the better. When extraction liquor ratio at 20：1, the drying temperature at 40 ℃,the drying time in 40 rain, stretching rate of 0.5 m/min, the best results were obtained. Fibers observed by SEM showed that the higher the extraction temperature, the easier the formation of a trench on the fiber surface. After s X-ray studies, obtained as the extraction temperature and extraction time and temperature tensile increased, fiber crystallinity increased. |
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| Keywords: | UHMWPE gel -spun fiber extraction drying stretching crystallinity |
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