Performance of black pigments incorporated in interpenetrating polymer network (IPN)

Interpenetrating polymer network (IPN) in which two different resins (epoxy and silicone) are not miscible as such with each other is made to do so by using cross-linking agents and catalyst. IPN possess good improved mechanical, chemical, heat and corrosion resistant properties than individual resins. Incorporation of black pigments like graphite, silicon carbide, carbon black and acetylene black has enhanced these properties because of their shape, size, acid and salt solution resistance, conducting nature and heat stability property. Flake structured graphite and hexagonal structured silicon carbide pigments in IPN protect the mild steel structures from corrosive and high temperature atmosphere for longer duration than the other pigments.