• Raja, S.
• Jarali, Chetan S.
• Kshirsagar, Prashant R.

Abstract

<p>The present study investigates the self-healing functionality of e-glass unidirectional fiber-reinforced epoxy resin, based on a hollow glass fiber approach under flexural and impact loading. The planned self-healing fiber-reinforced composite constitutes epoxy resin (Lapox ARL-125 &amp;#43; AH-367), e-glass fibers with 0&amp;deg; orientation, embedded hollow glass fabric (HGF) filled with a curing agent (Lapox L-552/K-552), which provides a self-healing functionality. The developed composite is tested on the virgin, damaged, and healed conditions for the various healing periods (1, 2, and 3 days), and recovered flexural, impact strength and subsequent healing efficiency are studied. On day three, the optimum flexural strength achieved is 851.17 N/mm&lt;sup&gt;2&lt;/sup&gt;, with a healing efficiency of 74.53&amp;#37; when subjected to quasi-static load. Similarly, the optimum impact energy absorbed is 4439.26 J/m, and impact strength achieved is 445.88 kJ/m&lt;sup&gt;2&lt;/sup&gt;, with a healing efficiency of 55.58&amp;#37; when subjected to impact load. The results show that developed self-healing composites may provide excellent flexural and impact properties for marine structural applications.</p>

Topics

• impedance spectroscopy
• polymer
• glass
• glass
• strength
• flexural strength
• resin
• fiber-reinforced composite
• curing