工艺与制造英文2020被引 19
石墨烯纳米片和还原氧化石墨烯双重改性玻纤/环氧树脂纳米复合材料的疲劳寿命显著提升
Significant Fatigue Life Enhancement in Multiscale Doubly-Modified Fiber/Epoxy Nanocomposites with Graphene Nanoplatelets and Reduced-Graphene Oxide
Mohammad Rafiee, Somayeh Hosseini Rad, Fred Nitzsche, Jeremy Laliberté, Michel R. Labrosse · University of Ottawa
摘要整理
本研究报道了采用还原氧化石墨烯(rGO)和石墨烯纳米片(GNP)双重改性的多尺度玻纤/环氧树脂复合材料的疲劳性能。采用真空辅助树脂传递模塑(VARTM)工艺制备复合材料层板,该方法具有成本效益高的优势。形貌和力学分析表明纳米填料分散均匀,复合材料疲劳寿命显著改善。实验结果表明,所有rGO掺杂浓度均显著延长了纳米复合材料的疲劳寿命。这种增强效应源于纳米颗粒与玻纤和环氧树脂基体之间形成了更强的界面结合。研究还发现,较低浓度的GNP能够提高纳米复合材料的疲劳寿命;但在较高掺杂量下,疲劳寿命出现下降趋势。该研究为开发高性能纤维增强复合材料提供了新的思路,具有重要的工程应用价值。
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