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method of producing a mesophasenpechs or fibres from this bad luck and bad luck

机译:由这种倒霉和倒霉产生中间相纤维或纤维的方法

摘要

An improved process for producing carbon fibers from pitch which has been transformed, in part, to a liquid crystal or so-called "mesophase" state. According to the process, carbon fibers are produced from pitch wherein the mesophase content of the pitch has been formed while agitating the pitch so as to produce a homogeneous emulsion of the immiscible mesophase and non-mesophase portions of the pitch. Mesophase pitches prepared in this manner have been found to possess a lesser amount of high molecular weight molecules in the mesophase portion of the pitch and a lesser amount of low molecular weight molecules in the non-mesophase portion of the pitch, and thus a smaller differential between the average molecular weights of the mesophase and non-mesophase portions of the pitch, than mesophase pitches having the same mesophase content which have been prepared in the absence of such agitation.
机译:一种由沥青生产碳纤维的改进方法,该沥青已部分地转变为液晶或所谓的“中间相”状态。根据该方法,由沥青生产碳纤维,其中在搅拌沥青的同时已形成沥青的中间相含量,从而产生沥青的不相溶的中间相和非中间相部分的均质乳液。已经发现以此方式制备的中间相沥青在沥青的中间相部分中具有较少量的高分子量分子,并且在沥青的非中间相部分中具有较少量的低分子量分子,因此较小的差异。在沥青的中间相和非中间相部分的平均分子量之间,比在没有这种搅拌的情况下制备的具有相同中间相含量的中间相沥青要高。

著录项

  • 公开/公告号ATA984674A

    专利类型

  • 公开/公告日1977-01-15

    原文格式PDF

  • 申请/专利权人 UNION CARBIDE CORPORATION;

    申请/专利号AT19740009846

  • 发明设计人

    申请日1974-12-10

  • 分类号D01F9/14;

  • 国家 AT

  • 入库时间 2022-08-23 00:34:56

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