The effect of nanoclay addition to the microcapsule core material on corrosion protection of self healing epoxy coating

Coatings are subjected to physical damage during their service life. Developing a smart coating which can sense and repair the damage autonomically is of great industrial intrest [1]. oneof the most common and versatile approaches toward self healing is the embedding liquid healing agent filledmicrocapsules through the coating, which rapture upon crack propagates and releases the healing agent into the damagedarea [2]. In many cases the healing agent differs from the matrix component of the coating which results in a poor anticorrosion performance of the healed coating. Linseed oil isone of the healing agents proposed in literature for anticorrosion coatings [3]. With the aim to improve the anti corrosion ability of linseed oil based selfhealing systems we studied the effects of adding clay nanoparticles on the corrosion protection abilities of the resultant self healing system and morphology of microcapsules.