有机微粒
By designing core-shell structured organic microparticles, the core polymer has a high water contact angle, and the shell polymer has a low glass transition temperature, thus achieving excellent water repellency on the substrate surface and solving the problem of insufficient water repellency of existing coatings.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- DAIKIN INDUSTRIES LTD
- Filing Date
- 2021-06-24
- Publication Date
- 2026-07-17
AI Technical Summary
Existing organic microparticle coatings have insufficient water-repellent properties, making it difficult to meet the excellent water-repellent requirements for environmental protection.
Organic microparticles with a core-shell structure are used, wherein the glass transition temperature or melting point of the core polymer is above 15°C and the water contact angle is above 100°, while the glass transition temperature or melting point of the shell polymer is lower than that of the core polymer and the water contact angle of the shell polymer is less than 100°. The core polymer is composed of hydrophobic homopolymers and the shell polymer is a non-water-soluble homopolymer. The water repellency is improved through specific composition and structural design.
The formation of an uneven structure on the substrate surface imparts excellent water repellency, achieving high-efficiency water repellency to meet environmental protection requirements.
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