Anti-corrosion coatings with high barrier chemical resistance properties

Abstract

The ways of solving actual problems of development corrosion resistant chemical resistant polymer coatings for containers, tanks, pipes and equipment in the chemical petrochemi cal industry are considered. It is shown that the widest range of resistance to aggressive media (acid, alkali, organic chlorine compounds, kerosene, diesel fuel, nitrobenzene, etc.) manifest a coating based on epoxy vinyl ester and epoxy novolac ester and oligomeric matrices with un iformly distributed therein particles of chemically resistant glass in the form of flakes or fibers of linear dimensions of 1 : 10 ratio. Thin plates of micaceous hematite (alpha-Fe[2]O[3] hematite structure) are used as fillers. Such particles of chemically re-sistant fillers create a coating structure with high barrier properties, preventing the penetration of aggressive agents to the surface of the metal to be protected.