Effect of electrochemical oxidation degree of carbon fiber on the interfacial properties of carbon fiber–reinforced polyaryletherketone composites

IF 2.3 3区材料科学 Q3 MATERIALS SCIENCE, COMPOSITES

Journal of Reinforced Plastics and Composites Pub Date : 2022-12-12 DOI:10.1177/07316844221145763

Dongting Gao, Hong-Liang Yang, Gang Liu, C.-H. Chen, Jianan Yao, Chang Li

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引用次数: 1

Abstract

Electrochemical oxidation of carbon fiber (CF) is used to enhance the interfacial adhesion of CF-reinforced polyaryletherketone (CF/PAEK) composites. The effect of current intensity parameter on surface structure of CF and interfacial properties of the corresponding thermoplastic composites are deeply investigated. The results show that the current intensity in the range of 80 A–300 A does not lead to a decrease in the mechanical property of CFs. When the current intensity is 200 A, CF/PAEK composites have the highest interfacial performance, which is mainly due to the improvement of CF surface roughness, wettability, and oxygen content. In addition, the degree of graphitization of CF surface is also a crucial factor affecting the interfacial properties of CF/PAEK. The higher the content of carboxyl groups, the more disordered the structures exist on the CF surface, which are not conducive to the strong adhesion of CF to PAEK resin. Therefore, balancing the wettability and graphitization degree of the CF surface is the key to enhancing the CF/PAEK interfacial properties by electrochemical treatment techniques.

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碳纤维电化学氧化程度对碳纤维增强聚芳醚酮复合材料界面性能的影响

采用电化学氧化法提高碳纤维增强聚芳醚酮(CF/PAEK)复合材料的界面附着力。深入研究了电流强度参数对CF表面结构及相应热塑性复合材料界面性能的影响。结果表明，80a ~ 300a范围内的电流强度对碳纤维材料的力学性能没有影响。当电流强度为200 A时，CF/PAEK复合材料的界面性能最高，这主要是由于CF表面粗糙度、润湿性和氧含量的提高。此外，CF表面的石墨化程度也是影响CF/PAEK界面性能的关键因素。羧基含量越高，CF表面结构越无序，不利于CF与PAEK树脂的强附着力。因此，平衡CF表面的润湿性和石墨化程度是电化学处理技术提高CF/PAEK界面性能的关键。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Reinforced Plastics and Composites 工程技术-材料科学：复合

CiteScore

5.40

自引率

6.50%

发文量

审稿时长

1.3 months

期刊介绍： The Journal of Reinforced Plastics and Composites is a fully peer-reviewed international journal that publishes original research and review articles on a broad range of today''s reinforced plastics and composites including areas in: Constituent materials: matrix materials, reinforcements and coatings. Properties and performance: The results of testing, predictive models, and in-service evaluation of a wide range of materials are published, providing the reader with extensive properties data for reference. Analysis and design: Frequency reports on these subjects inform the reader of analytical techniques, design processes and the many design options available in materials composition. Processing and fabrication: There is increased interest among materials engineers in cost-effective processing. Applications: Reports on new materials R&D are often related to the service requirements of specific application areas, such as automotive, marine, construction and aviation. Reports on special topics are regularly included such as recycling, environmental effects, novel materials, computer-aided design, predictive modelling, and "smart" composite materials. "The articles in the Journal of Reinforced Plastics and Products are must reading for engineers in industry and for researchers working on leading edge problems" Professor Emeritus Stephen W Tsai National Sun Yat-sen University, Taiwan This journal is a member of the Committee on Publication Ethics (COPE).