| 拉伸对聚芳砜酰胺(PSA)纤维力学性能的影响 |
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| 引用本文： | 李虎敏,汪晓峰,徐兵,陈晟晖,彭小洁,张幼维,赵炯心. 拉伸对聚芳砜酰胺(PSA)纤维力学性能的影响[J]. 合成技术及应用, 2013, 0(2): 1-5 |
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| 作者姓名： | 李虎敏 汪晓峰 徐兵 陈晟晖 彭小洁 张幼维 赵炯心 |
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| 作者单位： | 东华大学材料科学与工程学院纤维改性国家重点实验室;上海特安纶纤维有限公司;中国科学院上海有机化学研究所 |
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| 摘 要： | 研究了聚芳砜酰胺(PSA)纤维制备过程中各阶段拉伸倍数对纤维最终力学性能的影响,并制备出最高断裂强度达到3.62 cN/dtex的PSA纤维。要得到综合力学性能较高的PSA纤维,合适的表观喷头拉伸倍数为-50%～30%、塑化拉伸倍数为2、热拉伸倍数为2。PSA为较难结晶的高聚物,不论是聚合物粉末还是拉伸纤维,其结晶度都较低。PSA纤维的大分子取向与纤维的断裂强度关系十分密切,大分子取向因子与纤维的断裂强度呈线性关系,提高大分子取向程度是提高PSA纤维强度的重要途径。
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| 关 键 词： | 聚芳砜酰胺(PSA)纤维 拉伸 大分子取向 |
Effect of drawing on the mechanical properties of PSA fiber |
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| Li Humin,Wang Xiaofeng,Xu Bing,Chen Shenghui,Peng Xiaojie,Zhang Youwei,Zhao Jiongxin. Effect of drawing on the mechanical properties of PSA fiber[J]. Synthetic Technology and Application, 2013, 0(2): 1-5 |
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| Authors: | Li Humin Wang Xiaofeng Xu Bing Chen Shenghui Peng Xiaojie Zhang Youwei Zhao Jiongxin |
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| Affiliation: | 1(1.State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,College of Materials and Engineering,DongHua University,Shanghai 201620,China;2.Shanghai Tanlon Fiber Company Limited,Shanghai 201419,China;3.Shanghai Institute of Organic Chemistry,Chinese Academy of Science,Shanghai 200032,China) |
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| Abstract: | The effect of drawing ratios to the final mechanical property of PSA fiber during the drawing process is systematically studied in this paper.And PSA fiber with tensile strength of 3.62 cN / dtex was prepared.When the jet stretch ratio was-50% ～ 30%,the plastic drawing ratio was 2 and the hot drawing ratio was 2,the prepared PSA fiber has better mechanical properties.PSA was a kind of polymer which was difficult to crystallize,and the crystallinity of both PSA powder and drawn fibers were low.There was a linear relationship between the macromolecular orientation factor and tensile strength of PSA fiber.Improving the macromolecular orientation factor of PSA fiber was an important approach to improve the tensile strength of it. |
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| Keywords: | polysulfonamide fiber dawning macromolecular orientation |
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