Preparation and performance of graphene/modified polyetheretherketone

doi:10.19936/j.cnki.2096-8000.20230728.002

Abstract

Abstract: Due to the strong van der Waals forces between the Gr sheet layers and the high melt viscosity of PEEK, the poor dispersion of Gr in the PEEK matrix leads to the decrease of performance. In order to improve the dispersion of Gr in PEEK, PEEK-Aa powder was obtained by chemical modification of PEEK through the mixed acid of acetic acid/nitric acid, and then Gr/PEEK-Aa nanocomposites were prepared by solution blending and melt hot pressing methods. The Gr/PEEK-Aa nanocomposites exhibited good electrical conductivity with a maximum conductivity of 3.41×10^-4 S/cm and a percolation threshold as low as 0.55vol%. In addition, Gr/PEEK-Aa nanocomposites exhibited the best comprehensive performance when the Gr content was 1wt%.

Key words: poly(ether ether ketone), graphene, nanocomposite, electrical property

CLC Number:

TB332

LIU Huizhi, MEI Qilin, DING Guomin, XIAO Han, CHEN Shuhui, HUANG Zhixiong. Preparation and performance of graphene/modified polyetheretherketone[J]. COMPOSITES SCIENCE AND ENGINEERING, 2023, 0(7): 13-18.

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