中国塑料 ›› 2021, Vol. 35 ›› Issue (8): 94-99.DOI: 10.19491/j.issn.1001-9278.2021.08.013

• 材料与性能 • 上一篇    下一篇

回收聚乙烯模板法制备碳纤维的机理分析

矫佳利(), 杨卫民, 高晓东, 宋立健, 丁玉梅, 程礼盛()   

  1. 北京化工大学机电工程学院,北京 100029
  • 收稿日期:2021-04-23 出版日期:2021-08-26 发布日期:2021-08-27
  • 作者简介:矫佳利(1995—),女,在读硕士研究生,主要从事高分子材料成型加工及先进制造技术的研究。

Mechanism Analysis of Carbon Fiber Prepared by Recycled Polyethylene⁃Template Method

JIAO Jiali(), YANG Weimin, GAO Xiaodong, SONG Lijian, CHENG Lisheng   

  1. College of Mechanical and Electrical Engineering,Beijing University of Chemical Technology,Beijing 100029
  • Received:2021-04-23 Online:2021-08-26 Published:2021-08-27

摘要:

以聚乙烯(PE)材料为例,利用石墨烯模板法,通过有机无机材料的转化,将低成本回收PE成功制备了聚乙烯基碳纤维;同时,通过分子动力学模拟对石墨烯模板法制备机理进行分析,并通过实验成功制备了聚乙烯基碳纤维。石墨烯模板促进了碳纤维六元环层状结构的生长,有利于聚乙烯纤维的炭化;同时,利用拉曼光谱及X射线光电子序谱对纤维进行了表征。结果表明,石墨烯模板有利于纤维的炭化,同时,随着石墨烯含量的增加,纤维的炭化质量越高。

关键词: 回收聚乙烯, 石墨烯模板, 碳纤维, 分子动力学, 机理分析

Abstract:

The high?value recycling of plastics has become a focus of social and economic researches. In this work, a type of polyethylene?based carbon fiber was successfully prepared by means of a graphene?templating method through the conversion of organic and inorganic materials using low?cost recycled polyethylene. Molecular dynamics simulation was also conducted to analyze the preparation mechanism of the graphene?templating method. The graphene template can promote the growth of the six?membered ring?layered structure of carbon fiber. This is beneficial to the carbonization of polyethylene fibers. Raman spectroscopy and XPS were used to characterize the obtained carbon fiber. The results indicated that the graphene template could facilitate the carbonization of the fiber.

Key words: recycled polyethylene, graphene template, carbon fiber, molecular dynamics, mechanism analysis

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