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Article

Impact Strengthening of Laminated Kevlar/Epoxy Composites by Nanoparticle Reinforcement

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Mechanical Engineering Department, College of Engineering, United Arab Emirate University, Al Ain 15551, UAE
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Mechanical Design Department, Faculty of Engineering, Helwan University, Cairo 11795, Egypt
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Department of Mechanical Engineering, University of Birmingham, Dubai 341799, UAE
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Department of Mechanical Engineering, Khalifa University, Abu Dhabi 127788, UAE
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Department of Engineering Mechanics, Royal Institute of Technology-KTH, 10044 Stockholm, Sweden
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Author to whom correspondence should be addressed.
Polymers 2020, 12(12), 2814; https://doi.org/10.3390/polym12122814
Received: 5 November 2020 / Revised: 22 November 2020 / Accepted: 24 November 2020 / Published: 27 November 2020
(This article belongs to the Section Polymer Composites and Nanocomposites)
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. View Full-Text
Keywords: nanocomposites; Kevlar; epoxy; curing; thermo-mechanical properties nanocomposites; Kevlar; epoxy; curing; thermo-mechanical properties
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MDPI and ACS Style

Mourad, A.H.I.; Cherupurakal, N.; Hafeez, F.; Barsoum, I.; A. Genena, F.; S. Al Mansoori, M.; A. Al Marzooqi, L. Impact Strengthening of Laminated Kevlar/Epoxy Composites by Nanoparticle Reinforcement. Polymers 2020, 12, 2814. https://doi.org/10.3390/polym12122814

AMA Style

Mourad AHI, Cherupurakal N, Hafeez F, Barsoum I, A. Genena F, S. Al Mansoori M, A. Al Marzooqi L. Impact Strengthening of Laminated Kevlar/Epoxy Composites by Nanoparticle Reinforcement. Polymers. 2020; 12(12):2814. https://doi.org/10.3390/polym12122814

Chicago/Turabian Style

Mourad, Abdel H.I., Nizamudeen Cherupurakal, Farrukh Hafeez, Imad Barsoum, Farah A. Genena, Mouza S. Al Mansoori, and Lamia A. Al Marzooqi. 2020. "Impact Strengthening of Laminated Kevlar/Epoxy Composites by Nanoparticle Reinforcement" Polymers 12, no. 12: 2814. https://doi.org/10.3390/polym12122814

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