Impact Strengthening of Laminated Kevlar/Epoxy Composites by Nanoparticle Reinforcement

Research output: Contribution to journalArticlepeer-review

Authors

  • Abdel Hamid I. Mourad
  • Nizamudeen Cherupurakal
  • Imad Barsoum
  • Farah A. Genena
  • Mouza S. Al Mansoori
  • Lamia A. Al Marzooqi

Colleges, School and Institutes

Abstract

Herein, we report the fabrication and characterization of high-strength Kevlar epoxy composite sheets for structural application. This process includes optimization of the curing conditions of composite preparation, such as curing time and temperature, and the incorporation of nanofillers, such as aluminum oxide (Al2O3), silicon carbide (SiC), and multi-walled carbon nanotubes (MWCNT) in different weight percentages. Differential scanning calorimetry (DSC) was utilized to investigate the thermal stability and curing behavior of the epoxy, finding that a minimum of 5 min is required for complete curing under an optimized temperature of 170 °C. Moreover, mechanical characterization, including flexural and drop-weight tests, were performed and found to be in good agreement with the DSC results. Our results show that nanofiller incorporation improves the mechanical properties of Kevlar epoxy composites. Among the tested samples, 0.5% MWCNT incorporation obtained the highest mechanical strength.

Details

Original languageEnglish
Article number2814
JournalPolymers
Volume12
Issue number12
Publication statusPublished - 27 Nov 2020