Abstract
The accumulation of dead bacterial cells on the surface of general antibacterial and anti-corrosion coating will provide nutrition for subsequent cells, resulting in the rapid decomposition of the coating, which is the main factor restricting the service life of the coating. In this study, PDA was combined with PNIPAm to attain core-shell microspheres with thermoresponsive. Afterward, the modified scales were obtained by combining the pretreated basalt scales with core-shell microspheres and then depositing AgNPs. The thermoresponsive anti-corrosion and antibacterial composite coating were prepared by spraying. The results of cyclic immersion experiments at different temperatures showed that the coating prevented bacterial adhesion at 37 °C and removed adhesion bacteria at 4 °C. Concurrently, the coating realized the controlling release of the antibacterial agent through the temperature change. The EIS and SEM results indicated that the coating provided long-term protection for the matrix.
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