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发明公开
CN110699762A 一种聚丙烯腈纺丝原液的制备方法和聚丙烯腈纤维的制备方法 有权

一种聚丙烯腈纺丝原液的制备方法和聚丙烯腈纤维的制备方法
摘要：
本发明涉及纺织化学品技术领域，具体涉及一种聚丙烯腈纺丝原液的制备方法和聚丙烯腈纤维的制备方法。本发明提供的聚丙烯腈纺丝原液的制备方法，包括以下步骤：(1)将聚丙烯腈树脂与溶剂混合，得到聚丙烯腈淤浆液；(2)将所述聚丙烯腈淤浆液输入双螺杆挤出机中，进行溶解和脱泡，得到聚丙烯腈纺丝原液；所述双螺杆挤出机的温度为65～120℃；所述聚丙烯腈淤浆液在双螺杆挤出机中的停留时间为1～30min。通过本发明提供的制备方法能够制备得到分子量高达1×106g/mol，或固含量高达50wt.％的高品质聚丙烯腈纺丝原液，且得到的聚丙烯腈纺丝原液无气泡、无凝胶。
摘要（英）：

The invention relates to the technical field of textile chemicals, in particular to a preparation method of a polyacrylonitrile spinning solution and a preparation method polyacrylonitrile fibers. Thepreparation method of the polyacrylonitrile spinning solution includes the steps of firstly, mixing polyacrylonitrile resin with a solvent to obtain polyacrylonitrile slurry; secondly, feeding the polyacrylonitrile slurry into a double-screw extruder to perform dissolving and bubble removing to obtain the polyacrylonitrile spinning solution, wherein the temperature of the double-screw extruder is65-120 DEG C, and the polyacrylonitrile slurry is processed in the double-screw extruder for 1-30 minutes. By the preparation method of the polyacrylonitrile spinning solution, the high-quality polyacrylonitrile spinning solution with the molecular weight reaching up to 1*10<6>g/mol or the solid content reaching up to 50wt%, and the obtained polyacrylonitrile spinning solution is free of bubblesand gel.

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