碳纤维/聚醚酮酮界面强度影响因素的研究进展

doi:10.19936/j.cnki.2096-8000.20210828.018

摘要/Abstract

摘要： 碳纤维(CF)增强聚醚酮酮(PEKK)复合材料具有强度高、韧性好、工艺简易等优点,已成为一种极具潜力的热塑性复合材料。现有方法制备的复合材料中CF和PEKK的界面黏结强度依然不高,给其实际应用造成了困难。本文对CF/PEKK复合材料研究现状进行总结,通过分析界面结构及性能对应力传递所发挥的作用,归纳影响界面强度的关键因素。其中浸润理论、化学键理论、物理吸附理论可有效用于界面改性的机理分析。而针对CF/PEKK复合材料,可通过调节PEKK分子中的对苯和间苯比例或发展聚醚酮类上浆剂来进一步提高其界面性能。

关键词: 碳纤维, 聚醚酮酮, 热塑性复合材料, 界面强度

Abstract: Polyetherketoneketone (PEKK) is a semi-crystalline thermoplastic with high mechanical performances, high heat resistance, and chemical resistance. Therefore, carbon fiber (CF) reinforced PEKK composite has become a potential advanced thermoplastic composite owing to the superior mechanical properties, and simple processing technique as well. However, the weak interfacial bonding between CF and PEKK, as prepared by using the existing methods, strongly hinder the real applications. In this paper, by summerizing the present research progresses, the key factors affecting the interfacial strength are discussed and concluded by analyzing the effects of interface structure and stress transfer in the composites. Thus far, the infiltration theory, chemical bond theory, and physical adsorption theory have been widely discussed and successfully applied in the interface enhancement. For the CF/PEKK composites, the interface can further be improved by adjusting the proportion of terephthalyl/isophthalyl isomers ratio in the PEKK molecular chain or developing suitable ether-ketone-based sizing agents.

Key words: carbon fiber, polyetherketoneketone, thermoplastic composite, interfacial strength

中图分类号:

TB332

张凤, 焦梦晓, 李博澜, 张骁骅. 碳纤维/聚醚酮酮界面强度影响因素的研究进展[J]. 复合材料科学与工程, 2021, 0(8): 112-119.

ZHANG Feng, JIAO Meng-xiao, LI Bo-lan, ZHANG Xiao-hua. Research progress of influencing factors on the interfacial strength between carbon fiber and polyetherketoneketone[J]. COMPOSITES SCIENCE AND ENGINEERING, 2021, 0(8): 112-119.

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