Effect of black rice husk ash biosilica on mechanical, wear, and fatigue behavior of stacked aloevera/roselle and glass fiber reinforced epoxy composite

Abstract

In this present study, a high‐performance structural epoxy biocomposite has been prepared and characterized for its mechanical, wear, and fatigue behavior. The main aim of this research was to determine the effect of fiber stacking order and the biosilica addition in the epoxy hybrid composite when it is subjected to external loading. The research also focused on how the surface treatment process on fiber and particle affects the mechanical, wear, and fatigue behavior of composite. The biosilica particles were synthesized from black rice husks and then surface treated with 3‐aminopropyltriethoxysilane. Similarly, a base treatment was applied to fiber mats and the composite laminates for this investigation were fabricated by hand layup process. It is noted that the composite designations E12 and E22 exhibited an improved tensile strength of 58, 62% and flexural strength of 45, 51% for 1.0 vol% biosilica in both staking sequence models. Similarly, in inter‐laminar shear strength the composites E2, E21 and E22 outperformed than E1, E11, and E12. In terms of Izod impact toughness and hardness, composite designation E22 provides maximum increment of about 94% and 5%. The wear resistance of composite E22 exhibited lower wear loss and COF. The highest fatigue life count of 41,782 was observed for the composite designation E22 in tension‐tension fatigue mode. Overall the stacking order R/A/G/A/R gives better results than others. These load bearing properties enhanced hybrid composites might be employed in structural, industrial, automotive, home appliance, defense, and lightweight industrial applications.

Study on mechanical, thermal and morphology behavior of sisal / Bentonite nanoclay reinforced cardanol biopolymer composites

“…Tensile strength grew linearly up to a reinforcement level of 5 wt% bentonite nanoclay, but after that it started to decline despite the reinforcement level being increased further. The ber-matrix adhesion and ber orientation are signi cant strictures that in uence the mechanical characteristics of short ber and nanoparticle reinforced polymer composites [23,24]. These ndings demonstrated that sisal bers containing bentonite nanoclay had a superior contact with polymer matrix, enabling an improved rigidity, enhanced tension sharing, and consequently improved tensile testing results.…”

Effect of hybridization and stacking sequences on mechanical properties and thermal stability of aloe vera‐roselle‐glass fiber reinforced polymer composites

“…In comparison to their synthetic counterpart (i.e., glass fibers [GFs], aramid fibers, or carbon fibers), natural fibers offer various advantages such as lower weight, lower cost, lower density, biodegradable, and sustainable. [1][2][3] To this end, natural fibers reinforced composites have been explored for use in several applications such as medical implants, furniture fittings, paper industries, and textile industries. [4][5][6] Plant based polymer composites are preferred as they have superior sound and thermal resistance characteristics, and higher wear resistance that provide a safe and healthy working environment.…”

“…Demand for the use of natural fibers as polymer reinforcement has increased in the last few years. In comparison to their synthetic counterpart (i.e., glass fibers [GFs], aramid fibers, or carbon fibers), natural fibers offer various advantages such as lower weight, lower cost, lower density, biodegradable, and sustainable 1–3 . To this end, natural fibers reinforced composites have been explored for use in several applications such as medical implants, furniture fittings, paper industries, and textile industries 4–6 .…”