文献类型：期刊文献

英文题名：Mesophase oriented growth of a copolymer-modified coal tar pitch

作者：Jin, Ming-Lin[1]; Huang, Ai-Hua[1]; Zhou, Xiao-Long[2]; Li, Cheng-Lie[2]

机构：[1] Department of Material Engineering, Shanghai Institute of Technology, Shanghai, 200235, China; [2] Department of Petroleum Processing, East China University of Science and Technology, Shanghai, 200237, China

年份：2009

卷号：2

起止页码：1849

外文期刊名：26th Annual International Pittsburgh Coal Conference 2009, PCC 2009

收录：EI(收录号：20132016340056)

语种：英文

外文关键词：Molecular weight - Carbon - Feedstocks - Coal tar

摘要：Coal tar pitch was modified by a special copolymer to meet the feedstock requirement for carbon material production. The mesophase oriented growth behaviors in early stages of the thermal treatment to pure and copolymer-improved pitches were comparatively studied by solvent analysis and polarized-light micrograph observation. It was demonstrated that the formation and coalescence of the mesophase spherules were accelerated and the flow anisotropy optical structures were clearly exhibited in the specimens soaked up to 24 and 30 hours, when a blend of the pitch with 1-3% copolymer was used as the feedstock. The function of copolymer addition was also discussed.