Preparation and pyrolysis behavior of modified coal tar pitch as C/C composites matrix precursor

Alei Dang, Hao Li, Tiehu Li, Tingkai Zhao, Chuanyin Xiong, Qiang Zhuang, Yudong Shang, Xudong Chen, Xianglin Ji

科研成果: 期刊稿件文章同行评审

33 引用 (Scopus)

摘要

Medium-temperature coal tar pitch (CPT) which is used as C/C composites matrix precursor is modified by phenolic resin (PF) in the presence of p-toluene sulfuric (PTS) acid as catalyst. Fourier transform Infrared (FT-IR) spectroscopy techniques, polarized-light microscopy and thermaogravimetric analysis (TGA) are employed to study on structure and thermal behavior of the modified CPT, respectively. Results show that the high molecular weight aromatic species in modified CPT is found and also confirmed by the results from FT-IR and TGA analysis. Otherwise, coking yield of modified CTP has improved by 13% and soft point decreased by 25 °C compared with raw CPT. Moreover, the modification contributes to an improvement in the optical textures of resultant matrix precursor materials of C/C composites.

源语言英语
页(从-至)18-23
页数6
期刊Journal of Analytical and Applied Pyrolysis
119
DOI
出版状态已出版 - 1 5月 2016

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