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<p>We employed oxygen plasma treatment to activate the PTFE surface and introduce oxygen-containing polar groups (-OH, C-O, C=O), thereby enhancing surface energy and interfacial reactivity. We subsequently composited the modified PTFE (PTFE-O) with graphene oxide (GO), enabling tight interactions between the two phases through hydrogen bonding and van der Waals forces. Comprehensive characterizations, including XPS, FTIR, SEM, and contact angle analysis, confirmed the successful surface modification and uniform dispersion of GO. The optimized PTFE-O/GO composite exhibits a low resistivity of 2.41×10<sup>3</sup> Ω·cm under a compression pressure of 2 MPa, demonstrating markedly improved conductivity and antistatic performance. These findings provide an effective route for constructing conductive PTFE-based composites and offer new insights into interface-engineered antistatic polymer materials.</p>

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Synergistic Enhancement of Conductivity and Dispersion in PTFE/Graphene Oxide Composites via Plasma Surface Modification

  • 期刊论文

  • 发表日期：

    2026年4月11日

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  • Bin Huang,
  • Zhen Shen,
  • Xiaoqi Fei,
  • Junhui Liang,
  • Jiahui Hou,
  • Jianyang Kong,
  • Zhao Chen,
  • Guolong Chen,
  • Xin Yao,
  • Da Chen

摘要

We employed oxygen plasma treatment to activate the PTFE surface and introduce oxygen-containing polar groups (-OH, C-O, C=O), thereby enhancing surface energy and interfacial reactivity. We subsequently composited the modified PTFE (PTFE-O) with graphene oxide (GO), enabling tight interactions between the two phases through hydrogen bonding and van der Waals forces. Comprehensive characterizations, including XPS, FTIR, SEM, and contact angle analysis, confirmed the successful surface modification and uniform dispersion of GO. The optimized PTFE-O/GO composite exhibits a low resistivity of 2.41×103 Ω·cm under a compression pressure of 2 MPa, demonstrating markedly improved conductivity and antistatic performance. These findings provide an effective route for constructing conductive PTFE-based composites and offer new insights into interface-engineered antistatic polymer materials.