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<p>In this study, the innovative graphene oxide (GO) nanofiller nanocomposites reinforced with epoxy and E-glass for marine applications were analyzed. The growth of the maritime industry has led to a deficit in construction materials. GO epoxy composite systems, reinforced with E-glass fiber, enable the production of lightweight yet strong materials with numerous valuable features. Different volumes (vol.%) of GO nanofiller, such as 2, 4, 6, and 8 vol.%, were used to fabricate the composite, and vacuum bagging techniques were employed at room temperature for 24 h. Testing was performed to evaluate how the enhancement of the mechanical properties of the GO/epoxy-reinforced E-glass composite serves as a baseline for its mechanical properties in the seawater absorption experiment. A seawater absorption analysis was conducted to assess the composite's compatibility with the marine environment. Afterward, the sample was placed in a hot air oven at a uniform temperature of 80&#xa0;°C for six (6) hours for water curing, followed by mechanical testing. The tabulated results indicate an improvement in tensile strength, flexural strength, and Charpy impact for both dry and absorbed samples. Effective microstructure morphology was characterized and confirmed using x-ray diffraction, transmission electron microscopy, Fourier transform infrared spectroscopy, and scanning electron microscopy. These analyses demonstrated how GO impeded the proliferation of cracks and voids in the composite. The results of this experimental analysis provide strong evidence that GO/epoxy-reinforced E-glass fiber nanocomposites are a promising candidate for marine applications.</p>

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Mechanical Performance Analysis and Seawater Absorption of Graphene Oxide (GO)-Reinforced Epoxy Nanocomposite for Marine Applications

  • 期刊论文

  • 发表日期：

    2025年10月11日

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  • Dauson Nyonyi,
  • V. V. S. Prasad,
  • P. Swapna

摘要

In this study, the innovative graphene oxide (GO) nanofiller nanocomposites reinforced with epoxy and E-glass for marine applications were analyzed. The growth of the maritime industry has led to a deficit in construction materials. GO epoxy composite systems, reinforced with E-glass fiber, enable the production of lightweight yet strong materials with numerous valuable features. Different volumes (vol.%) of GO nanofiller, such as 2, 4, 6, and 8 vol.%, were used to fabricate the composite, and vacuum bagging techniques were employed at room temperature for 24 h. Testing was performed to evaluate how the enhancement of the mechanical properties of the GO/epoxy-reinforced E-glass composite serves as a baseline for its mechanical properties in the seawater absorption experiment. A seawater absorption analysis was conducted to assess the composite's compatibility with the marine environment. Afterward, the sample was placed in a hot air oven at a uniform temperature of 80 °C for six (6) hours for water curing, followed by mechanical testing. The tabulated results indicate an improvement in tensile strength, flexural strength, and Charpy impact for both dry and absorbed samples. Effective microstructure morphology was characterized and confirmed using x-ray diffraction, transmission electron microscopy, Fourier transform infrared spectroscopy, and scanning electron microscopy. These analyses demonstrated how GO impeded the proliferation of cracks and voids in the composite. The results of this experimental analysis provide strong evidence that GO/epoxy-reinforced E-glass fiber nanocomposites are a promising candidate for marine applications.