Coating as well as preparation method and application thereof
By developing a coating containing conductive materials, magnetic field shielding materials and polymers, the problem of insufficient shielding performance of existing coatings under high-frequency electromagnetic waves is solved, and the dual effects of high gas barrier performance and excellent electromagnetic shielding are achieved, which are suitable for a variety of materials.
Patent Information
- Application Number
- CN202411742480.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-04-04
AI Technical Summary
Existing electromagnetic wave shielding coatings are difficult to take into account efficient electromagnetic shielding and excellent barrier properties, especially under high-frequency electromagnetic waves, which are insufficient shielding performance and cannot meet the growing anti-interference demand.
A coating was developed, which includes conductive materials, magnetic field shielding materials, nanoparticle activators, acid reagents, carboxyl-containing polymers, hydroxyl-containing water-soluble polymers, coupling agents and solvents. Through the synergistic action of conductive materials and magnetic shielding materials, the frequency range of electromagnetic shielding is broadened, and a dense coating is formed through ester crosslinking reaction, achieving the dual effects of high gas barrier performance and excellent electromagnetic shielding.
It achieves the dual effects of high gas barrier performance and excellent electromagnetic shielding on a single coating, and can effectively block electromagnetic waves and water vapor and other gases. It is suitable for plastic films, fiber fabrics, textiles, paper-based, composites and other materials.