中国塑料 ›› 2025, Vol. 39 ›› Issue (7): 87-92.DOI: 10.19491/j.issn.1001-9278.2025.07.014

• 加工与应用 • 上一篇    下一篇

氧化石墨烯微片接枝改性环氧树脂及其改性沥青流变性能的研究

刘双1(), 韩美钊2   

  1. 1.黑龙江省交通投资集团有限公司,哈尔滨 150090
    2.哈尔滨工业大学交通科学与工程学院,哈尔滨 150090
  • 收稿日期:2024-08-11 出版日期:2025-07-26 发布日期:2025-07-22
  • 作者简介:刘双(1984-),男,主要从事公路工程技术研究,120896328@qq.com
  • 基金资助:
    黑龙江省交通投资基团有限公司科研项目

Preparation of oxidized graphene nanoplatelet⁃modified epoxy resin and its effects on rheological properties of asphalt binder

LIU Shuang1(), HAN Meizhao2   

  1. 1.Heilongjiang Transportation Investment Group Co,Ltd,Harbin 150090,China
    2.School of Transportation Science and Engineering,Harbin Institute of Technology,Harbin 150090,China
  • Received:2024-08-11 Online:2025-07-26 Published:2025-07-22

摘要:

通过共价键接枝方法获得了表面接枝的三亚乙基四胺⁃氧化石墨烯微片(TETA⁃GOs),并以此作为固化剂进行环氧树脂改性沥青的制备,从而研究GOs的引入对环氧树脂改性沥青流变性能的影响。结果表明,TETA⁃GOs能够实现环氧树脂的固化,并且在沥青中形成更大体积的树脂颗粒;随着GOs引入至环氧树脂交联网络中,改性沥青的抗形变性能、高温性能等级以及抗车辙性能显著提升,但弹性恢复性能略有下降,材料黏性性能的占比增强。TETA⁃GOs/环氧树脂改性沥青的这一流变特性为高强度沥青路面的应用需求提供了一种可行的应用方案。

关键词: 氧化石墨烯微片, 环氧树脂, 改性沥青, 流变性能

Abstract:

This study developed triethylenetetramine⁃functionalized graphene oxide microchips (TETA⁃GOs) through covalent grafting and employed them as curing agents for epoxy⁃modified asphalt binders. The investigation focused on the influence of TETA⁃GOs on the rheological properties of the modified asphalt system. Characterization revealed that TETA⁃GOs effectively cured the epoxy resin, resulting in the formation of larger resin particle domains within the asphalt matrix. The incorporation of GOs into the epoxy crosslinking network significantly enhanced the binder's deformation resistance, elevated its high⁃temperature performance grade, and improved rutting resistance. While these modifications led to a marginal reduction in elastic recovery and an increased viscous component, the overall rheological improvements demonstrate the potential of TETA⁃GOs/epoxy resin composites for high⁃strength pavement applications. These findings provide a promising approach for developing advanced asphalt binders with superior mechanical performance.

Key words: oxidized graphene nanoplatelets, epoxy resin, modified asphalt, rheological property

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