| 三元共聚聚酰亚胺纤维的制备 |
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| 引用本文： | 黄荣辉,姚果,顾宜,许伟,叶光斗.三元共聚聚酰亚胺纤维的制备[J].合成纤维工业,2007,30(1):1-4. |
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| 作者姓名： | 黄荣辉 姚果 顾宜 许伟 叶光斗 |
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| 作者单位： | 四川大学高分子科学与工程学院,高分子材料工程国家重点实验室,四川,成都,610065 |
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| 摘 要： | 针对均苯四甲酸二酐和4,4′-二氨基二苯醚体系两步法制备的聚酰亚胺(PI)纤维强度比较偏低的问题,加入刚性单体对苯二胺,在N-甲基吡咯烷酮中进行三元共聚得到聚酰胺酸(PAA),选用水和乙醇的混合溶液为凝固浴通过干湿法纺制出PAA纤维。对PAA纤维进行不同倍数的拉伸,然后通过优化酰亚胺化条件制得了致密的PI纤维,处理温度在400℃时,其强度和模量可分别达到4．29 cN/dtex和389 cN/dtex。
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| 关 键 词： | 聚酰胺酸 聚酰亚胺纤维 共聚 凝固浴 形态结构 |
| 文章编号： | 1001-0041(2007)01-0001-04 |
| 修稿时间： | 2006-07-11 |
Preparation of ternary copolyimide fiber |
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| Huang Ronghui,Yao Guo,Gu Yi,Xu Wei,Ye Guangdou.Preparation of ternary copolyimide fiber[J].China Synthetic Fiber Industry,2007,30(1):1-4. |
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| Authors: | Huang Ronghui Yao Guo Gu Yi Xu Wei Ye Guangdou |
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| Affiliation: | State Key Lab. of Polymer Material Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu 610065 |
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| Abstract: | To improve the tenacity of polyimide(PI)fiber prepared by two-step process 1,4-benzenediamine,a rigid mono- mer,was introduced into the system of pyromellitic dianhydride and 4,4'-diamino dipheuyl and ternary copolymerized with N- methylpyrrolidone to yield polyamic acid(PAA)which was spun into PAA fiber by dry-wet spinning using the mixture solution of water and alcohol as coagulation bath.PAA fiber was drawn at different ratios and produced into compacted PI fiber under the op- timized imidization conditions.The tenacity and modulus were 4.29 cN/dtex and 389 cN/dtex,respectively,at treating tempera- ture 400℃. |
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| Keywords: | polyamic acid polyimide fiber copolymerization coagulation bath morphology |
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