Anticorrosive–Radiative Cooling Integrated Coating for Oil Storage Tanks
Yong Wang,
Anzhi Zhong,
Haiyu Wang,
Daoquan Fan,
Yuke Li,
Han Cheng,
Wei Zhou,
Xiao Xue
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.
