Research progress of influencing factors on the interfacial strength between carbon fiber and polyetherketoneketone

doi:10.19936/j.cnki.2096-8000.20210828.018

Abstract

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

CLC Number:

TB332

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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