摘要
Nacre-inspired coatings reinforced with amino-functionalized boron nitride nanosheets (NH 2 –BNNSs) were developed in this work. A hierarchical “brick and mortar” structure, where NH 2 –BNNSs act as “bricks” and epoxy resin act as “mortar”, was developed attributed to electrostatic repulsion between NH 2 –BNNSs modified by sodium carboxymethyl cellulose. In nacre-inspired coatings, penetration path of corrosive species must travel to reach metal surface was extended significantly, leading to hindered metal corrosion. Electrochemical impedance spectroscopy demonstrated | Z | f =0.01 Hz of aluminum alloy (AA5052) covered by nacre-inspired coating (NC-20) was 4 orders of magnitude higher than that of AA5052 covered by pure epoxy coating after 84 days of exposure in NaCl solution.
危险品化学品经营许可证（带存储）