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Abstract
The nanocomposite coating was optimized to improve the poor deformation synergy (eg.easy to fall off and peel off). Gecko-inspired bionic nanocomposite coating, inspired by gecko setae with a broom-like structure, was innovatively proposed by adding nanoparticles with different compounds and particle size. “Gecko toes dynamic adsorption-desorption effect” was simulated. Electrochemical test, mechanical properties test and XRD characterization were performed, respectively. Electrochemical test and mechanical properties test results show that gecko-inspired bionic nanocomposite coating has a better anti-corrosion effect and deformation synergy than conventional coatings. XRD characterization results indicate that nano-additives contributed to the formation of molecular level adhesion force.
Acknowledgments
(1) Special fund project for basic scientific research business expenses of central public welfare research institutes, Item no. 2018-9024, project name: Structural design and key technology of Nano-composite coating for bridge steel substrates;
(2) Beijing nature foundation project, Item no. 8172047, project name: Study on the “Hand Shape Asymmetry” Molecular Structure Design and “Self-Repair” Mechanism of Nano-composite Coatings for Bridge Steel Members
(3) The Interdisciplinary Training Program of High Level Talents in Beijing Higher Education Institutions in 2019, project name: Amplification test and achievement promotion of “three-imitation” Nano-composite coating for bionic self-repairing/imitation lotus leaf/imitation gecko toes, Item no. 2019100170419