| 热状态下UHMWPE纤维的力学性能 |
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| 引用本文： | 饶崛,徐卫林.热状态下UHMWPE纤维的力学性能[J].纺织学报,2009,30(1). |
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| 作者姓名： | 饶崛 徐卫林 |
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| 作者单位： | 1. 武汉科技学院,新型纺织材料绿色加工及其功能化教育部重点实验室,湖北,武汉,430073
2. 武汉科技学院,新型纺织材料绿色加工及其功能化教育部重点实验室,湖北,武汉,430073;武汉科技学院,纺织与材料学院,湖北,武汉,430073 |
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| 摘 要： | 主要研究热状态下,在一定时间范围内,温度和外力对UHMWPE纤维力学性能的影响.结果表明:随着温度的升高,纤维的强度、断裂伸长、模量以及断裂功都有不同程度的下降.特别是断裂功和强度的下降最为明显,但纤维的断裂伸长随温度的变化不大.用光学显微镜观察到,不同温度下,纤维纵向拉伸断裂处的形态也不同.随着温度的升高,纤维在断裂处不再出现因大分子之间作用力损失而产生的微原纤现象,在拉伸断裂处出现了细颈和微孔.实验表明UHMWPE纤维抗热应力破坏性能很差,温度越高,纤维越容易被破坏.
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| 关 键 词： | UHMWPE纤维 力学性能 温度 强度 断裂伸长 弹性模量 |
Mechanical properties of UHMWPE fiber under heating state |
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| RAO Jue,XU Weilin.Mechanical properties of UHMWPE fiber under heating state[J].Journal of Textile Research,2009,30(1). |
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| Authors: | RAO Jue XU Weilin |
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| Affiliation: | 1;2;1.Wuhan University of Science and Engineering;New Textile Materials and Application Key Laboratory;Wuhan;Hubei 430073;China;2.Textile and Materials Department;Wuhan University of Science and Engineering;China |
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| Abstract: | Mechanical properties of UHMWPE fiber when subjected to heating at different temperatures in a given time(5 seconds) were discussed.The results showed that with the increase of temperature,the strength,breaking elongation,modulus and work of rupture of the fiber are all decreased to a certain extent.Especially the strength and work of rupture decreased sharply,but the breaking elongation only changed slightly.The optical microscope showed that the longitudinal fracture morphology of the fiber when treated a... |
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| Keywords: | UHMWPE fiber mechanical property temperature strength breaking elongation elastic modulus |
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