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The effect of electrolyte on surface composite and microstructure of carbon fiber by electrochemical treatment

Yunjiao Ma, Julin Wang, Xiaoping Cai


The new method of electrochemical anode and cathode alternating this was used to treat carbon fiber in this article. Scanning electron microscope (SEM), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD) was used to study the impact of surface composition and surface microstructure on the PAN-based carbon fibers with electrochemical cathode and anode alternating in different electrolytes. Results show that the method can make the surface of the carbon fiber grooves deepen; when the electrolyte is sulfuric acid, phosphoric acid and sodium sulfate, sodium phosphate, the C contents on the surface of the carbon fiber is reduced while the O content increased, and the little influence of ammonium bicarbonate on the surface element of the carbon fiber was discovered; However, regardless of the electrolyte can make the oxygen functional groups COOH content increased significantly on the carbon fiber surface. Treating carbon fibers in different electrolytes, anodic oxidation mechanism of the process is different. Treated carbon fibers with electrochemical alternating anode and cathode, the crystal lattice spacing d(002) and the diameter of the carbon fiber increase at the same time.


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  • 中国社会科学院
  • 谷歌学术
  • 打开 J 门
  • 中国知网(CNKI)
  • 引用因子
  • 宇宙IF
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  • ICMJE

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