Water-repellent coating, water-repellent component, paint composition, and method for manufacturing a water-repellent component
A three-dimensional aggregated coating of alumina and boehmite particles with a radial structure and Cassie-Baxter surface maintains water repellency under adverse conditions, addressing the loss of superhydrophobicity in existing materials.
JP7873429B2Active Publication Date: 2026-06-12NIPPON LIGHT METAL CO LTD +1
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- NIPPON LIGHT METAL CO LTD
- Filing Date
- 2022-01-21
- Publication Date
- 2026-06-12
Smart Images
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Abstract
To provide a water-repellent film which has high water repellency even under an acid condition or a contamination condition, a water-repellent member, a coating composition and a method for producing a water-repellent member.SOLUTION: A water-repellent film includes a plurality of long particles containing at least any one of alumina and boehmite as a main component, and an aggregate containing a covering layer that covers the surface of the plurality of long particles and is formed of a water-repellent resin. The aggregate is formed by three-dimensionally aggregating the plurality of long particles. The outer surface of the aggregate is covered with the covering layer. The aggregate holds a space communicating with the outside of the water-repellent film between the plurality of long particles covered with the covering layer.SELECTED DRAWING: Figure 3
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