Surface and Interfacial Bonding with Epoxy Adhesive of Flame Retardent Acrylonitrile-Butadiene-Styrene Copolymers (ABS)

Flame retardants were widely used to expanding applications of acrylonitrile-butadiene-styrene copolymers (ABS) to daily life, heat generation, and energy storage. However, effect of flame retardants on surface properties such as wettability, adhesion and epoxy resins affinity were few studied. In this work, surface, epoxy resin adhesive as well as curing condition of ABS/ FRABS were investigated systematically. Results showed that processing temperature changing the ABS-flame retardant mixing from liquid-solid to liquid-liquid and affect the interface shear bonding strength. Best processing of rebonded ABS samples were curing under 0.7 kg, in 60 °C for 2 hours. Adhesion of epoxy to ABS/ FRABS remained for 90 days under soaking in 40 wt% sulfuric acid, showing the obvious chemical stability.