Substrate treatment-free anticorrosive primer for corrugated joist steel protective fence, and preparation method of anticorrosive primer

The invention discloses a substrate treatment-free anticorrosive primer for a corrugated joist steel protective fence, and a preparation method of the anticorrosive primer, belonging to the field of chemical engineering. The anticorrosive primer of the invention solves the problem that an existing product has high requirements on substrate treatment and is poor in effect after treatment. The anticorrosive primer comprises a component A and a component B, wherein the component A comprises silicon nitride modified epoxy resin, a dispersing agent, graphene, zinc powder, fumed silica, a leveling agent, vinyltrimethoxysilane, xylene and butanol; and the component B comprises a 1,3-BAC curing agent and aspartic acid. The preparation method comprises the following steps: preparing the silicon nitride modified epoxy resin; preparing a silicon nitride modified epoxy anticorrosive primer; preparing a novel curing agent; and mixing the silicon nitride modified epoxy anticorrosive primer with thecuring agent. According t