中国塑料 ›› 2025, Vol. 39 ›› Issue (2): 15-20.DOI: 10.19491/j.issn.1001-9278.2025.02.004

• 材料与性能 • 上一篇    下一篇

石墨烯增强PE复合材料的组织与性能研究

余田亮1, 陈文革1(), 陈施润1, 陈达1, 周伟2, 周兰燕2   

  1. 1.西安理工大学材料科学与工程学院,西安 710048
    2.陕西三原鑫满意塑胶科技有限公司,陕西 咸阳 712000
  • 收稿日期:2024-05-05 出版日期:2025-02-26 发布日期:2025-02-27
  • 通讯作者: 陈文革(1969—),男,教授,从事高分子材料及其复合材料制备与改性的研究,wgchen001@263.net
    E-mail:wgchen001@263.net
  • 基金资助:
    陕西三原科技发展项目(2022KJG?08)

Study on microstructure and properties of graphene⁃reinforced polyethylene composites

YU Tianliang1, CHEN Wenge1(), CHEN Shirun1, CHEN Da1, ZHOU Wei2, ZHOU Lanyan2   

  1. 1.College of Materials Science and Engineering,Xi'an University of Technology,Xi'an 710048,China
    2.Shaanxi Sanyuan Xin Satisfied Plastic Technology Co,Ltd,Xianyang 712000,China
  • Received:2024-05-05 Online:2025-02-26 Published:2025-02-27
  • Contact: CHEN Wenge E-mail:wgchen001@263.net

摘要:

采用机械球磨和挤压热熔法制备聚乙烯(PE)/改性石墨烯复合材料,探讨改性石墨烯对PE复合材料的微观组织和相关性能的影响。结果表明,通过稀土改性能够使石墨烯在PE基体中均匀分散;制备的PE/0.5 %(质量分数)CeO2@rGO复合材料的结晶度为62.14 %,相较于纯PE的拉伸强度提高8.6 %,弹性模量提高5.79 %,冲击韧性最大为4.35 kJ/m2。断裂模式由纯韧性断裂转变成脆性⁃韧性断裂结合。同时改性石墨烯的加入使热分解温度升高20 ℃。

关键词: 改性石墨烯, 聚乙烯, 复合材料, 组织与性能

Abstract:

In this study, polyethylene (PE)/modified graphene composites were prepared through mechanical ball milling and hot melt extrusion, and the effect of modified graphene on the microstructure and properties of the composites were investigated. The results indicated that graphene can be uniformly dispersed in the PE matrix through modification with rare earth. The as⁃prepared PE/0.5 wt%CeO2@rGO composite exhibited a degree of crystallinity of 62.14 %, its tensile strength increased by 8.6 %, its elastic modulus increased by 5.79 %, and its impact toughness increased up to 4.35 kJ/m2. A change in the fracture mode took place from a sole ductile fracture to the brittle⁃ductile combined one. Meanwhile, the addition of modified graphene resulted in an increase in the thermal decomposition temperature by 20 ℃.

Key words: modified graphene, polyethylene, composite, structure and property

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