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<p>This study provides a comprehensive investigation into the enhancement of mechanical and thermal properties of epoxy polymer composites through the incorporation of magnesium layered double hydroxide (MH) and graphene nanoplatelets (GNP), highlighting their potential for advanced structural and functional applications. Various mechanical tests including tensile, compression, flexural, and impact were conducted with MH filler loadings ranging from 3, 6 and 9 wt% with 0.5 wt% of GNP. The test results showed that the 9 wt% of MH addition with 0.5 wt% of GNP yielded the high values of flexural and impact strength as 288.78&#xa0;MPa and 0.1894&#xa0;J/mm<sup>2</sup> respectively whereas maximum tensile strength of 101.55&#xa0;MPa is exhibited by 6 wt% MH added composite. Thermal gravimetric analysis and dynamic mechanical behavior were employed to evaluate the thermal and dynamic behavior of the composite. The results indicate that the combined effect of selected fillers improves the thermal stability of the composites. MH enhances the thermal stability, with a linear improvement correlating with the wt% of MH and an increase in residual weight from 30.97 to 43.97%. DMA results confirmed the enhanced damping properties for GFREP with the addition of MH and GNP fillers. These results highlight the potential of MH and GNP added GFREP for high-performance applications requiring superior mechanical and thermal stability.</p>

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Synergistic enhancement of dynamic and thermo-mechanical properties of epoxy/glass fiber composites with GNP-MH fillers

  • 期刊论文

  • 发表日期：

    2025年12月23日

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  • C. Nithiyapathi,
  • S. Manivannan,
  • V. Kavimani

摘要

This study provides a comprehensive investigation into the enhancement of mechanical and thermal properties of epoxy polymer composites through the incorporation of magnesium layered double hydroxide (MH) and graphene nanoplatelets (GNP), highlighting their potential for advanced structural and functional applications. Various mechanical tests including tensile, compression, flexural, and impact were conducted with MH filler loadings ranging from 3, 6 and 9 wt% with 0.5 wt% of GNP. The test results showed that the 9 wt% of MH addition with 0.5 wt% of GNP yielded the high values of flexural and impact strength as 288.78 MPa and 0.1894 J/mm2 respectively whereas maximum tensile strength of 101.55 MPa is exhibited by 6 wt% MH added composite. Thermal gravimetric analysis and dynamic mechanical behavior were employed to evaluate the thermal and dynamic behavior of the composite. The results indicate that the combined effect of selected fillers improves the thermal stability of the composites. MH enhances the thermal stability, with a linear improvement correlating with the wt% of MH and an increase in residual weight from 30.97 to 43.97%. DMA results confirmed the enhanced damping properties for GFREP with the addition of MH and GNP fillers. These results highlight the potential of MH and GNP added GFREP for high-performance applications requiring superior mechanical and thermal stability.