Influence of low-pressure Ar plasma modification of Musa sapientum banana fibers on banana fiber reinforced epoxy composite

Abstract

ABSTRACT Banana fibers are cost-effective, abundantly available and environmentally sustainable, but they often have some drawbacks, such as hydrophilicity and performance variations. The experimental approach is intended to be used in this work to examine the effects of cold glow discharge argon plasma modification on the surface of banana fibers. The emphasis is on examining the mechanisms that underlie the morphological and chemical changes observed in banana fibers, as well as identifying the mechanisms that enhance the fiber–matrix interface and, as a consequence, the mechanical properties of the laminates. Significant improvements were observed for epoxy matrix laminates reinforced with banana fibers when the surface of the banana fibers was modified by plasma of argon gas (Ar) gas with varying power densities of 80,120 W for 30 min, which changed the surface chemical characteristics. The FTIR and XRD investigations revealed that plasma treatment imparted active functional groups onto the surface of the banana fiber, establishing chemical interactions with the epoxy resin. As a result, banana fibers and modified BFREC composites can be used to manufacture interior panels, headliners, seatbacks, dashboards, automobile industry, and industrial applications in order to nurture self-sustaining biodegradable natural resources.