| 碳纤维原料沥青的分子量测定 |
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| 引用本文： | 李小宁,赵大钧.碳纤维原料沥青的分子量测定[J].石油炼制与化工,1995,26(3):56-59. |
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| 作者姓名： | 李小宁 赵大钧 |
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| 作者单位： | 北京服装学院，中国石油化工总公司发展部 |
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| 摘 要： | 用溶解法对通用级碳纤维用沥青的溶剂进行了筛选，发现三氯代苯可将高软化点沥青彻底溶解。以三氯代苯为溶剂，用ＶＰＯ法测定了４种国产碳纤维级沥青的分子量，所得结果的准确度大大提高。以三氯代苯和正庚烷的混合溶剂对碳纤维沥青进行了分级处理，获得８个不同分子量的沥青级分。
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| 关 键 词： | 沥青 分子量 渗透压测定 碳纤维 |
MOLECULAR WEIGHT DETERMINATION OF CARBON FIBER PRECURSOR PITCH |
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| Li Xiaoning, Zhu Bensong.MOLECULAR WEIGHT DETERMINATION OF CARBON FIBER PRECURSOR PITCH[J].Petroleum Processing and Petrochemicals,1995,26(3):56-59. |
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| Authors: | Li Xiaoning Zhu Bensong |
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| Abstract: | Trichloro-benzene has been selected as a solvent for the carbon fiber precursor pitch of general purpose from the solubility test of various solvents due to its complete solubility for high softening point pitch. Molecular weights of four domestic produced carbon fiber precursor pitch samples were measured by vapor pressure osmometer with trichloro-benzene as solvent, and accuracy improvement was found in the determination. Eight fractions with different molecular weights were obtained by using trichloro-benzene and heptane mixed solvent for separation. |
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| Keywords: | pitch carbon fiber molecular weight trichloro-benzene vapor presure osmometer |
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