| Issue |
MATEC Web Conf.
Volume 376, 2023
Conference on Advanced Materials for Engineering and Functional Purposes (AMEFP 2022)
|
|
|---|---|---|
| Article Number | 01002 | |
| Number of page(s) | 8 | |
| Section | Advanced Materials Technologies and Application | |
| DOI | https://doi.org/10.1051/matecconf/202337601002 | |
| Published online | 13 April 2023 | |
Acid Treatment of Carbon Fiber Surface
Ufa Institute of Chemistry UFRS RAS, 450054, Ufa, Russia
* Corresponding author: rida_gallyamova@mail.ru
The paper describes the modification conducted for the PAN carbon fiber surfaces in the solutions of nitric and sulphuric acids. The authors studied the impact of modification parameters such as temperature, acid concentration, time and ratio of the nitrosulphuric acid on the occurrence of reactive groups on the fiber surface. The authors revealed the presence of carboxylic and ketone reactive groups in the range of 1663-1798 and 1568 cm-1 in the IR spectra of carbon fibers. The use of the nitrosulphuric acid did not identify sulfur-containing functional groups on the carbon fiber IR spectra. Preliminary acid treatment of the carbon fiber surface led to the formation of uniform continuous coating of a SiO2 barrier being 127 ± 30 μm by a sol-gel method.
© The Authors, published by EDP Sciences, 2023
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