Abstract
Hexagonal boron nitride and cubic boron nitride were modified by polydopamine to improve dispersion in epoxy resin (EP). The average coefficient of friction (COF) of EP-HBN@PDA coating decreased under dry and seawater condition compared to EP indicating BN possessed self-lubricating effect. COF decreased with CBN content raising in seawater, because seawater removed debris including BN particles and CBN with high hardness improved rigidity of coatings. Wear rates of EP-CBN@PDA coating decreased by 68.88% and 97.95% compared to EP-HBN@PDA, and binary-filled coating performed excellently under seawater, it revealed CBN was more effective than HBN in improving load carrying capacity of coatings.
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