Performance regulation method of wind power jacket anticorrosive coating suitable for marine salt spray environment, composite coating, microcapsule and method
By introducing core-shell structured microcapsules into the coating of offshore wind turbine jackets, the problem of easy degradation of traditional microcapsules in high salt spray environments has been solved, enabling the coating to self-repair and improve its anti-corrosion performance, thus extending the service life of wind power facilities.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- XIAN THERMAL POWER RES INST CO LTD
- Filing Date
- 2026-04-13
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies make it difficult to detect and effectively repair microcracks in offshore wind turbine jackets in a timely manner. Traditional microcapsules are prone to premature degradation or leakage in high salt spray environments, resulting in decreased corrosion resistance and insufficient mechanical and corrosion resistance of the repaired area.
The microcapsules employ a core-shell structure, with the wall material composed of polyurethane formed by the reaction of HDI trimer and polyethylene glycol PEG2000. The core material contains polyurethane acrylate RJ423, 1,6-hexanediol diacrylate HDDA, and photoinitiator 1173. They are prepared through interfacial polymerization. The microcapsule particle size is 15μm to 60μm, the wall thickness is 1μm to 5μm, the initial decomposition temperature is higher than 130℃, and the final decomposition temperature is higher than 500℃. When added to an aqueous polyurethane matrix, they form a composite coating to achieve self-healing.
Under ultraviolet light, the microcapsules rupture and release the repair agent, enabling the coating to repair itself efficiently, restoring the physical barrier function and corrosion resistance of the damaged area, enhancing the mechanical integrity of the coating, and extending the service life of wind power facilities.
Smart Images
Figure CN122399698A_ABST