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unknown
同步氢化/热缩聚法制备中间相沥青
Authors
刘安华
夏文丽
+3 more
姚艳波
舒欣
董炎明
Publication date
20 December 2011
Publisher
Abstract
通过同步氢化/热缩聚反应,制得中间相沥青(MP);重点研究了四氢萘(THN)用量对MP性质的影响。研究表明THN增加,MP的软化点(SP)随之降低,H/C随之提高,不溶分随之减少;偏振光显微镜研究表明THN用量少于8%时,MP的形貌为分布不均的各向异性与各向同性两种沥青的混合物;而随着THN的增加,各向异性沥青逐渐趋于以中间相小球形态,并且较为均匀地分布到各向同性沥青基质之中。MP经保温处理后,纺丝性能得到改善,最终制得横截面呈无规结构的沥青基碳纤维
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Last time updated on 16/06/2016