Oxidation-reduction responded self-repairing anticorrosive coating and preparation method thereof

An anti-corrosion coating and self-healing technology, applied in anti-corrosion coatings, coatings, etc., can solve the problems of shortening the path and the research on self-healing coatings is still in the blank stage, and achieve the effect of rapid response, good application prospects and sufficient protection
CN106867404AInactive Publication Date: 2017-06-20NANJING UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NANJING UNIV OF SCI & TECH
Publication Date
2017-06-20
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a high-sensitivity oxidation-reduction responded self-repairing anticorrosive coating and belongs to the technical field of metal anticorrosive coatings. The high-sensitivity oxidation-reduction responded self-repairing anticorrosive coating is prepared from an organic-inorganic hybrid sol-gel coating and a magnetic intelligent nano container doped into the organic-inorganic hybrid sol-gel coating. A preparation process comprises the following steps: preparing the magnetic intelligent nano container; dispersing the magnetic intelligent nano container into organic-inorganic hybrid sol-gel; coating the surface of a magnesium alloy substrate with a mixture to form the high-sensitivity oxidation-reduction responded self-repairing anticorrosive coating. By adopting the high-sensitivity oxidation-reduction responded self-repairing anticorrosive coating provided by the invention, the dense degree of a coating substrate can be improved, and corrosion inhibitor molecules can be actively and rapidly released when the coating is damaged and a metal substrate is exposed in a corrosive environment and the corrosion inhibitor molecules are adsorbed on the surface of the metal substrate to realize a self-repairing effect; the high-sensitivity oxidation-reduction responded self-repairing anticorrosive coating is an anticorrosive coating with good performances and application potential.
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Description

technical field

[0001] The invention relates to a metal anticorrosion coating and a preparation method thereof, specifically an oxidation-reduction response self-repairing anticorrosion coating and its preparation method and application, belonging to the technical field of metal anticorrosion. Background technique

[0002] Magnesium alloys are widely used in aerospace, transportation and other industrial sectors due to their advantages such as high specific strength, good heat dissipation, low density, and excellent casting performance. They play an important role in realizing the long-term goals of equipment lightweight, energy saving and emission reduction. However, due to the active chemical properties of magnesium, the thermodynamic stability of magnesium alloy materials is poor, and there are often hidden dangers of corrosion damage in practical applications. This feature limits the further wide application of magnesium alloys. So far, the design and development of effe...

Claims

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