Oil storage tanks face critical challenges of high-temperature-induced volatile loss and corrosion
failure, which restrict operational safety and economic efficiency. To address these issues, this study
develops a water-based anticorrosive–radiative cooling integrated coating. The coating achieves
passive cooling via solar heat reflection and radiative heat dissipation, while integrating anti-corrosion
functionality to form a comprehensive protection system. Systematic optimization of key parameters
was conducted: barium sulfate (BaSO₄) and magnesium fluoride (MgF₂) were selected as composite
reflective fillers for their complementary spectral reflectivity; the optimal formulation was determined
as a BaSO₄:MgF₂ volume ratio of 2:1, 70% pigment volume concentration (PVC), and a 150 μm coating
thickness. Experimental results show that the optimized coating exhibits a solar reflectivity of up to
92.82% with stable infrared emissivity, effectively reducing tank temperature and minimizing “breathing
loss” and volatile emissions. Electrochemical tests confirm that the double-layer system (epoxy–silicone
anticorrosive primer and radiative cooling topcoat) maintains low-frequency impedance above 2.0 × 10⁹
Ω after 68 days of immersion, demonstrating superior long-term corrosion resistance. As a water-borne,
energy-saving, and environmentally friendly solution, the coating aligns with the “Double Carbon”
goals, extends tank service life, reduces maintenance costs, and provides a sustainable protection
strategy for the aviation energy storage industry, with broad application prospects in green industrial
infrastructure.
