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Glass Fiber Reinforced Polymer (GFRP) composites have gained widespread adoption across various industries due to their outstanding strength-to-weight ratio, resistance to corrosion, and cost-effectiveness. However, their long-term reliability is often compromised by issues such as delamination and moisture absorption. This study investigates the improvement of mechanical properties and water resistance in GFRP composites through the integration of TiO2 nanofillers. The epoxy matrix was reinforced with TiO2 nanoparticles in concentrations ranging from 0.1 to 7 wt.%, with dispersion optimized using an Ultrasonication Dual Mixing (UDM) technique. Mechanical evaluations, including tensile, flexural, and impact tests conducted in accordance with ASTM standards, revealed notable enhancements at an optimal TiO2 content of 1 wt.%. Higher concentrations resulted in nanoparticle agglomeration, leading to reduced performance. Water absorption experiments indicated that composites with 0.1 wt.% TiO2 exhibited the lowest moisture uptake due to improved interfacial adhesion. The results confirm that TiO2 nanofillers contribute to enhanced stiffness, fracture toughness, and overall durability of GFRP composites. These advancements make TiO2 reinforced GFRP materials highly suitable for demanding applications in aerospace, automotive, and marine engineering. This research underscores the potential of nanofiller-modified GFRP composites as a high-performance material for structural applications requiring superior mechanical integrity and environmental resistance.

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Investigation of Mechanical Properties and Terminological Performance of TiO2 Filled Hybrid GFRP Composite and Nanocomposite—A Review

  • 章节

  • 发表日期：

    2026年

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  • S. Prashanth,
  • Sandeep Kumar Singh,
  • Rosang Pongen,
  • Yogendra Kumar Verma,
  • Kanjarla Vijay

摘要

Glass Fiber Reinforced Polymer (GFRP) composites have gained widespread adoption across various industries due to their outstanding strength-to-weight ratio, resistance to corrosion, and cost-effectiveness. However, their long-term reliability is often compromised by issues such as delamination and moisture absorption. This study investigates the improvement of mechanical properties and water resistance in GFRP composites through the integration of TiO2 nanofillers. The epoxy matrix was reinforced with TiO2 nanoparticles in concentrations ranging from 0.1 to 7 wt.%, with dispersion optimized using an Ultrasonication Dual Mixing (UDM) technique. Mechanical evaluations, including tensile, flexural, and impact tests conducted in accordance with ASTM standards, revealed notable enhancements at an optimal TiO2 content of 1 wt.%. Higher concentrations resulted in nanoparticle agglomeration, leading to reduced performance. Water absorption experiments indicated that composites with 0.1 wt.% TiO2 exhibited the lowest moisture uptake due to improved interfacial adhesion. The results confirm that TiO2 nanofillers contribute to enhanced stiffness, fracture toughness, and overall durability of GFRP composites. These advancements make TiO2 reinforced GFRP materials highly suitable for demanding applications in aerospace, automotive, and marine engineering. This research underscores the potential of nanofiller-modified GFRP composites as a high-performance material for structural applications requiring superior mechanical integrity and environmental resistance.