Aqueous heavy-duty anticorrosive epoxy primer for petroleum transmission pipeline

The present invention discloses an aqueous heavy-duty anticorrosive epoxy primer for a petroleum transmission pipeline, wherein the aqueous heavy-duty anticorrosive epoxy primer comprises, by weight, 15-25% of an aqueous epoxy resin, 10-20% of a water-soluble phenol formaldehyde resin, 2-6% of an environmentally friendly cosolvent, 3-5% of a polytetrafluoroethylene emulsion, 6-10% of talc powder, 6-10% of precipitated barium sulfate, 10-15% of a curing agent, and the balance of an auxiliary agent. The aqueous heavy-duty anticorrosive epoxy primer of the present invention has characteristics of wide storage environment, fast surface drying, excellent water resistance, excellent acid resistance, excellent alkali resistance, excellent oil resistance, excellent salt spray resistance, excellent high-temperature resistance, excellent cold-heat alternation resistance, strong impact resistance, and good adhesion. 本发明公开了种输油管道用水性重防腐环氧底漆，包括按重量百分比的如下组分：水性环氧树脂15-25％，水溶性酚醛树脂10-20％，环保助溶剂2-6％，聚四氟乙烯乳液3-5％，滑石粉6-10％，沉淀硫酸钡6-10％，