Pitch-Based Carbon Fibers: Manufacturing Status and Modification of Properties

• Published in: Russian journal of physical chemistry. B Vol. 16; no. 1; pp. 148 - 154
• Main Author: Klimenko, I. V.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01-02-2022; Springer Nature B.V
• Subjects: Bromination; Bromine; Carbon fibers; Chemical Physics of Polymer Materials; Chemistry; Chemistry and Materials Science; Electrical properties; Electrical resistance; Physical Chemistry; Raman spectroscopy; carbon fibers; electrical conductivity; structure; bromination
• ISSN: 1990-7931; 1990-7923
• DOI: 10.1134/S1990793122010225

This paper analyzes the state of production of carbon fiber (CF) materials, including pitch-based CFs. It is shown that in Russia there is a significant potential for industrial production of pitch-based CFs. Considerable attention is paid to possible ways of modifying pitch-based CFs in order to improve their electrical properties. The efficiency of using gaseous bromine to reduce the electrical resistance of pitch-based CFs is shown. Based on the analysis of X-ray and Raman spectroscopy data, it is shown that a 7-fold decrease in electrical resistance during bromination is related to changes in the fiber structure.