Influence of Epoxy/Nanosilica on Mechanical Performance of Hemp/Kevlar Fiber Reinforced Hybrid Composite with an Ultrasonic Frequency

Abstract

Ultrasonic vibration was employed in blending the nanosilica into epoxy resin to manufacture hemp/kevlar/nanosilica-based epoxy composites, with an ultrasonic occurrence of 20kHz and a 900W capacity of power. An ultrasonic probe was utilized to ensure the consistent dispersion of the nanoparticles in the epoxy. The mechanical characteristics of hemp/kevlar fiber reinforced with epoxy/nanosilica in a mat form have been studied. Hand layup procedures were used to create these composites, including varying weight of nanosilica and variable fiber stacking sequencing. The different weight are 3, 6, and 9, and the stacking sequences are B, C, and D. The effectiveness of ultrasonic irradiation on mechanical characteristics was investigated and related. The inclusion of 6wt. of SiO₂ to the B type resulted in a 25 rise in tension and a 37 in bending. The addition of 6wt. silica to the C-type hybridization nanocomposite results in a 34 rise in tension and a 38 rise in bending. Extreme tension behavior is attained at 6wt. SiO₂ with epoxy with the B type piling order, and extreme bending behavior is obtained at 6wt. SiO₂ with the C type piling order. A B-type model composite with a 6-wt. SiO₂ addition performed better in hygroscopic than A, C, and D type model composites. An SEM is utilized to observe the microstructure of shattered materials.