Molecular Structure Design and Development Status of High Performance Polyimide Fiber

LI Meng-jia; JIN Xin; WANG Wen-yu; NIU Jia-rong

doi:10.14028/j.cnki.1003-3726.2022.12.003

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Molecular Structure Design and Development Status of High Performance Polyimide Fiber

更新时间：2022-10-17

- Molecular Structure Design and Development Status of High Performance Polyimide Fiber
- Polymer Bulletin Vol. 35, Issue 12, Pages: 26-34(2022)
- 作者机构：
  
  1.天津工业大学材料科学与工程学院，天津　300387
  2.天津工业大学纺织科学与工程学院，天津　300387
- 作者简介：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.2022.12.003
  CLC：
- Published：20 December 2022，
  
  Received：21 December 2021，
  
  Revised：16 March 2022，
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LI Meng-jia, JIN Xin, WANG Wen-yu, NIU Jia-rong. Molecular Structure Design and Development Status of High Performance Polyimide Fiber. [J]. Polymer Bulletin 35(12):26-34(2022)
DOI：

LI Meng-jia, JIN Xin, WANG Wen-yu, NIU Jia-rong. Molecular Structure Design and Development Status of High Performance Polyimide Fiber. [J]. Polymer Bulletin 35(12):26-34(2022) DOI： 10.14028/j.cnki.1003-3726.2022.12.003.

摘要

聚酰亚胺(PI)纤维是目前耐高温性能最佳的纤维之一

在航空航天和柔性电子设备等领域具有很好的应用前景

它可由一步法或二步法制备。然而

一步法制备的PI纤维存在溶剂毒性高、在多数低毒性有机溶剂中的溶解度低、成纤性差等问题;两步法制备的PI纤维表面存在气孔缺陷

导致力学性能较差。由于这两种制备方法都存在一定的问题

限制了PI纤维的进一步应用与发展。通过对国内外文献进行梳理和总结

从PI纤维的成纤性与力学性能难以平衡的矛盾出发

对PI纤维主链的分子结构、主链的取向程度及侧链的有序列度的设计原理进行了阐述

为制备高性能PI纤维提供了新的思路。此外

对PI纤维未来发展趋势和应用前景进行了展望。

Abstract

Polyimide fiber is one of the best fibers with high temperature resistance at present. It is widely used in aerospace

flexible electronic equipment and other fields. It can be prepared by one-step or two-step method. However

the polyimide fiber prepared by one-step method has the problems of high solvent toxicity

low solubility in most low toxic organic solvents and poor fiber forming; The polyimide fiber prepared by two-step method has the defects of surface porosity and poor mechanical properties. Because these two preparation methods have several problems

the further application and development of polyimide fiber are limited. This paper first reviews the relative references home and abroad

starting from the contradiction that it is difficult to balance the fiber forming properties of polyimide and fiber properties. The molecular structure of polyimide main chain

the orientation degree of main chain and the design principle of sequence degree of side chain are described

which provides a new idea for the preparation of high-performance polyimide fiber. In addition

the future development trend and application prospect of polyimide fiber are prospected.

关键词

聚酰亚胺耐高温材料加工性能力学性能

Keywords

PolyimideHigh temperature resistant materialsProcessing performanceMechanical property

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