一种多维纳米相复合的镍基多功能海洋防护涂层的制备方法
By introducing a bilayer structure of Ni-Co-MSN and Ni-W-LDH into the nickel-based coating and combining it with an electrodeposition process, the problems of hydrogen barrier, corrosion prevention and wear resistance of nickel-based composite coatings in marine environments were solved, achieving a highly efficient multi-protection effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ZHENGZHOU UNIV
- Filing Date
- 2026-06-18
- Publication Date
- 2026-07-17
AI Technical Summary
Existing nickel-based composite coatings are insufficient in hydrogen barrier performance in marine environments, and their corrosion resistance is insufficient to meet the requirements of long-term service. They are also difficult to achieve multiple functions such as hydrogen barrier, corrosion resistance and wear resistance. Furthermore, thick coatings are prone to cracking and peeling.
The design employs a dual-layer structure, with an inner layer of Ni-Co-MSN and an outer layer of Ni-W-LDH. A multi-dimensional nanophase composite coating is constructed using a two-step electrodeposition technique. Three-dimensional MSN nanoparticles are used to construct hydrogen traps, and two-dimensional LDH nanosheets are used to construct a labyrinth barrier. The combination of DC and pulse electrodeposition processes achieves functional layering and interface enhancement.
It significantly improves hydrogen barrier performance by over 90%, corrosion resistance by over 100 times, and wear resistance by a significant margin, completely solving the problems of coating cracking and interface peeling, and achieving multi-functional synergistic protection for metal equipment in marine environments.
Smart Images
Figure CN122406339A_ABST