Zinc-Rich Epoxy Anti-Corrosion Coating and Preparation Method Thereof

摘要

This invention relates to a zinc-rich epoxy anti-corrosion coating comprising a component A capable of being cured into a film, and a component B containing a curing agent, wherein the component A comprises, by mass percentage, 0.1-5 wt % graphene, 0-35 wt % zinc powder, 30-70 wt % filler, 10-20 wt % epoxy resin having 54 wt % solid content, and 10-20 wt % solvent, wherein the sum of the mass percentage contents of the graphene, zinc powder and filler is 60-80 wt % and the sum of the mass percentage contents of all components of component A is 100 wt %. According to the present invention, the addition of graphene to an anti-corrosion coating decreases the thickness of the coating film, reduces the amount of zinc powder while increases the anti-corrosion effect. It reduces zinc oxide vapour generated during welding and is environmentally friendly.

主权项

1. A zinc-rich epoxy anti-corrosion coating, characterized in that the zinc-rich epoxy anti-corrosion coating comprises a component A capable of being cured into a film, and a component B comprising a curing agent, wherein the mass ratio of the component A to the component B is 8:1 to 12:1,
wherein the component A comprisesgraphene0.1-5wt %,zinc powder0-35wt %,filler30-70wt %,epoxy resin having 54 wt %10-20wt %, andsolid contentsolvent10-20wt %; wherein, the sum of the mass percentage contents of the graphene, zinc powder and filler is 60-80 wt % and the sum of the mass percentage contents of all components of component A is 100 wt %; and the component B consists of the curing agent and a solvent in a mass ratio of 2:3 to 3:2.