• 文献标题:   Amino graphene oxide/dopamine modified aramid fibers: Preparation, epoxy nanocomposites and property analysis
  • 文献类型:   Article
  • 作  者:   GONG XY, LIU YY, WANG YS, XIE ZM, DONG QL, DONG MY, LIU H, SHAO Q, LU N, MURUGADOSS V, DING T, GUO ZH
  • 作者关键词:   polydopamine, amino graphene oxide, interface propertie
  • 出版物名称:   POLYMER
  • ISSN:   0032-3861 EI 1873-2291
  • 通讯作者地址:   Harbin Inst Technol
  • 被引频次:   96
  • DOI:   10.1016/j.polymer.2019.02.021
  • 出版年:   2019

▎ 摘  要

Dopamine modified aramid fiber (AF) surface was grafted with amino functionalized graphene oxide to improve the interfacial adhesive performance. The self-polymerized polydopamine (PDA) coating and subsequent amino GO grafting on the AF surface attributed to the increase in its surface roughness and surface-active groups. The functional groups, chemical composition and surface topography of unmodified and modified AF was investigated by Fourier transform infrared (FTIR) spectroscopy, X-ray photoelectron spectroscopy (XPS) and Scanning electron microscopy (SEM). The interfacial properties were analyzed by measuring interfacial shear strength (IFSS) of unmodified and modified AF embedded epoxy matrix. Further, the properties were tuned by optimizing the reaction temperature and concentration of ethylenediamine. The IFSS of AF/epoxy composites was increased by 34% after grafting amino graphene oxide.