Improving Interfacial Interactions of CF/PEEK Composites with Sulfonated Polyether Sulfone 


Vol. 22,  No. 1, pp. 231-239, Jan.  2021
10.1007/s12221-021-0004-3


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  Abstract

Due to the limitation of surface inertness and wettability of carbon fibers (CF), the adhesion between Poly(etherether- ketone) (PEEK) resin matrix and CF is poor, which reduces the mechanical properties of CF/PEEK composites. In order to improve the interfacial performance between PEEK matrix and carbon fiber fabric, sulfonated-polyether-sulfone (s- PSF) was coated as a sizing agent on the surface of the carbon fiber to construct CF/PEEK composite interface. On one hand, the formation of hydrogen bonds between s-PSF and activated CF increases the adhesion between s-PSF and fibers. On the other hand, Good compatibility between S-PSF and PEEK, which improves the interface performance between PEEK and CF. The results showed that the mechanical properties and interface properties of CF/PEEK composite prepared by modified CF were improved to some extent. The flexural strength, flexural modulus, impact strength and interlaminar shear strength of the materials were increased by 57.5 %, 16.7 %, 44.2 % and 39.7 %, respectively. By introducing s-PSF as sizing agent into CF/PEEK composite interface, the comprehensive properties of the material were effectively improved.

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  Cite this article

[IEEE Style]

T. Ren, G. Zhu, X. Ren, R. Tian, B. Li, "Improving Interfacial Interactions of CF/PEEK Composites with Sulfonated Polyether Sulfone," Fibers and Polymers, vol. 22, no. 1, pp. 231-239, 2021. DOI: 10.1007/s12221-021-0004-3.

[ACM Style]

Tianning Ren, Guangming Zhu, Xiaoming Ren, Renjie Tian, and Ben Li. 2021. Improving Interfacial Interactions of CF/PEEK Composites with Sulfonated Polyether Sulfone. Fibers and Polymers, 22, 1, (2021), 231-239. DOI: 10.1007/s12221-021-0004-3.

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