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When it comes to structural components, fiber reinforced polymeric (FRP) composite materials are the best option. A wide range of loadings are experienced by various structural components during their in-service period. The primary objective of this study was to assess the mechanical and thermal properties of glass FRP composites after integrating nano-Al2O3 particles. For both the control glass/epoxy (GE) composites and those modified with nano-Al2O3, the testing involved a loading rate of 1 mm/min. The epoxy matrix was enhanced with different concentrations of nano-Al2O3(0.1, 0.3, and 0.5 weight percent), where nano-Al2O3 served as a filler material. The specimens were subjected to +70 ℃ for 36 h and then −60 ℃ for the same amount of time in a thermal shock-conditioned environment. Thermal-shock conditioned specimens (TCS) of nano-Al2O3 modified GE composites have shown higher strength values compared to control and unconditioned specimens. Among all the manufactured and tested composites, those modified with 0.1 weight percent nano-Al2O3 exhibited the best strength performance. Additionally, the effect of nano-Al2O3 content on the glass transition temperature (Tg) of GE composites was analyzed using temperature modulated differential scanning calorimetry (TMDSC). In order to determine the primary cause of failure that results in various morphologies, scanning electron microscopy (SEM) was used.

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Mechanical and Thermal Behavior of Thermal-Shock Conditioned Nano-Al2O3 Modified Glass Fiber Reinforced Polymeric Composites

  • 会议论文

  • 发表日期：

    2025年

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  • Kishore Kumar Mahato,
  • Somanatha parida,
  • Naman Khandelwal,
  • Satyajit Das

摘要

When it comes to structural components, fiber reinforced polymeric (FRP) composite materials are the best option. A wide range of loadings are experienced by various structural components during their in-service period. The primary objective of this study was to assess the mechanical and thermal properties of glass FRP composites after integrating nano-Al2O3 particles. For both the control glass/epoxy (GE) composites and those modified with nano-Al2O3, the testing involved a loading rate of 1 mm/min. The epoxy matrix was enhanced with different concentrations of nano-Al2O3(0.1, 0.3, and 0.5 weight percent), where nano-Al2O3 served as a filler material. The specimens were subjected to +70 ℃ for 36 h and then −60 ℃ for the same amount of time in a thermal shock-conditioned environment. Thermal-shock conditioned specimens (TCS) of nano-Al2O3 modified GE composites have shown higher strength values compared to control and unconditioned specimens. Among all the manufactured and tested composites, those modified with 0.1 weight percent nano-Al2O3 exhibited the best strength performance. Additionally, the effect of nano-Al2O3 content on the glass transition temperature (Tg) of GE composites was analyzed using temperature modulated differential scanning calorimetry (TMDSC). In order to determine the primary cause of failure that results in various morphologies, scanning electron microscopy (SEM) was used.