Experimental analysis of atmospheric plasma treatment and resin optimization for adhesive bonding of carbon fibre/epoxy composites

Two objectives have been pursued: the effects of atmospheric pressure plasma treatment on the surface of carbon fiber composites reinforced with phenolic resin matrix, with the goal of increase wettability and adhesion of epoxy resin, and the search of the best air bubble removal techniques for epoxy resin. Measurements have been conducted with SEM, FTIR, drop contact angle and XPS. An increase of wettability is observed, confirmed by single lap shear strength tests