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Carbon fiber reinforced polymers (CFRPs) are widely used in structural reinforcement due to their exceptional strength-to-weight ratio. However, conventional CFRPs often exhibit limitations such as poor impact resistance, diminished thermal stability at high temperatures, and vulnerability to interlaminar fractures. In this study, CFRPs were fabricated in a 3:6:3 layer-by-layer sandwich architecture using aramid fiber, aluminum silicate ceramic fiber, and graphene sheets as novel additives to enhance their mechanical properties and thermal stability. Results demonstrate that the net breaking energy (NBE) and bending strength significantly differ with the incorporation of additives. Impact resistance increased with graphene and aramid incorporation, while bending strength decreased, indicating a trade-off between toughness and stiffness, with scanning electron micrographs (SEM) highlighting effects on interlamination and fracture of the results in the impact test. CFRP-Graphene (CFRP-G) showed the highest NBE, while homogenous CFRP excelled in bending strength. CFRP-Ceramic (CFRP-C) offered the best overall balance of properties. Thermal stability showed minimal variation due to different chemical composition. Statistical analyses (ANOVA, MANOVA) confirmed significant differences in bending strength (p = 0.0000677) and NBE (p = 0.00413). However, thermogravimetric analyses (TGA) yield no statistically significant differences.

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Fabrication and Characterization of Carbon Fiber Reinforced Polymer Composites with Novel Additives

  • 会议论文

  • 发表日期：

    2026年

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  • Brian Isaia L. Montefalcon,
  • Brian Ezekiel B. Barbadillo,
  • Rolito Felix T. Janda,
  • Antoinette C. Lacsa,
  • Raphael Louie C. De Guzman,
  • Eric B. Macalolot,
  • Jean Raynell S. Bello

摘要

Carbon fiber reinforced polymers (CFRPs) are widely used in structural reinforcement due to their exceptional strength-to-weight ratio. However, conventional CFRPs often exhibit limitations such as poor impact resistance, diminished thermal stability at high temperatures, and vulnerability to interlaminar fractures. In this study, CFRPs were fabricated in a 3:6:3 layer-by-layer sandwich architecture using aramid fiber, aluminum silicate ceramic fiber, and graphene sheets as novel additives to enhance their mechanical properties and thermal stability. Results demonstrate that the net breaking energy (NBE) and bending strength significantly differ with the incorporation of additives. Impact resistance increased with graphene and aramid incorporation, while bending strength decreased, indicating a trade-off between toughness and stiffness, with scanning electron micrographs (SEM) highlighting effects on interlamination and fracture of the results in the impact test. CFRP-Graphene (CFRP-G) showed the highest NBE, while homogenous CFRP excelled in bending strength. CFRP-Ceramic (CFRP-C) offered the best overall balance of properties. Thermal stability showed minimal variation due to different chemical composition. Statistical analyses (ANOVA, MANOVA) confirmed significant differences in bending strength (p = 0.0000677) and NBE (p = 0.00413). However, thermogravimetric analyses (TGA) yield no statistically significant differences.