Enhancing Coating Adhesion on Fibre-Reinforced Composite by Femtosecond Laser Texturing

Carbon fibre-reinforced polymers (CFRP), thanks to their properties such as lightness, resistance corrosion and fatigue, are emerging composite materials in the aeronautic fields, guaranteeing reduce weight costs by maintaining high performances terms of strength security. For preventing fluid damage freezing, applications, CFRP parts need be coated painting. However, paint/coating adhesion on composites is generally poor affected surface conditions. In this work, femtosecond laser texturing was investigated an approach improve superhydrophobic coatings (SHC) substrates. The textured surfaces show, after coating, a more lasting behaviour compared received sample, even several cleaning cycles, demonstrating that pre-treatment reliable green method enhance SHC substrate.