Surface modification method based on polymerization and cross-linking solidification of dopamine and/or derivatives thereof
US10633554B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2017 |
| Grant date | Apr 28, 2020 |
| Priority date | — |
| Expiry date | Dec 11, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2479/02
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention provides a surface modification method based on the polymerization and cross-linking solidification of dopamine and/or its derivatives, which belongs to the technical field about composite material fabrication. The principle of dopamine polymerization and the formation process of polydopamine coating layer are the foundation of the present invention. This innovative method is established after deeply analyzing the failure mechanism of polydopamine coating layer in severe environments, such as organic solvents and acidic/alkalic environments. The critical work is finding out an eligible cross-linking agent which could react with the active functional groups in polydopamine. After cross-linking reaction, the soluble low-molecular-weight dopamine oligomers could be transformed into the insoluble three-dimensional stereographic networks. In this instance, the interaction between polydopamine molecules, and the adhesion between polydopamine coating layer and substrate materials, can be significantly strengthened. After the cross-linking solidification, the hydrophilic polydopamine coating layer could be stable and effective for long-term utilization in severe envir…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.