材料科学
环氧树脂
腐蚀
复合材料
剥脱关节
氮化硼
钝化
涂层
图层(电子)
金属
石墨烯
冶金
纳米技术
作者
Mingjun Cui,Siming Ren,Songlv Qin,Qunji Xue,Haichao Zhao,Liping Wang
标识
DOI:10.1016/j.corsci.2017.11.022
摘要
Hexagonal boron nitride (h-BN), a structural analogue of graphene, is a better alternative for anticorrosive coatings because of its electrical insulation properties. In this work, few-layer h-BN nanosheets are obtained by the exfoliation of stacked h-BN powders with poly(2-butyl aniline) (PBA) and incorporated into epoxy coatings for protecting metallic substrate against corrosion. Results show that as prepared composite coatings exhibit high impedance modulus and low water absorption, suggesting their superior performance of corrosion protection owing to the “labyrinth effect” of h-BN and passivation effect of PBA on the metal substrates.
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