一种疏水型防腐涂层及其制备方法
By using a dual-layer design of primer and hydrophobic topcoat, the problems of poor adhesion and weak mechanical strength of existing hydrophobic anti-corrosion coatings are solved, achieving high adhesion, high mechanical strength and long-lasting anti-corrosion performance. The coating still maintains good hydrophobicity and anti-corrosion performance after multiple friction and salt spray tests.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHANDONG ZHONGSHI YITONG GRP CO LTD
- Filing Date
- 2026-06-09
- Publication Date
- 2026-07-17
AI Technical Summary
Existing hydrophobic anti-corrosion coatings have poor adhesion to metal surfaces, weak mechanical strength, and insufficient anti-corrosion durability. They are particularly prone to peeling under external impact or temperature changes, and their physical micro-nano structures are easily worn, leading to a decrease in hydrophobic performance.
The system employs a dual-layer synergistic design, consisting of a primer protective layer and a hydrophobic topcoat protective layer. The primer protective layer is composed of a composite base adhesive, modified zinc powder, and nano zinc oxide, while the topcoat protective layer is composed of modified micron and nano powders. Through modification with a specific coupling agent, a strong chemical bond between inorganic fillers and organic resin is achieved, thereby improving adhesion and mechanical strength.
It achieves high adhesion, high mechanical strength and long-term anti-corrosion performance. The coating still maintains good hydrophobicity after being soaked in salt water for 100 days. It still has hydrophobic effect after 300 rubs. It shows no abnormality after 2500h salt spray test. It has self-cleaning and anti-fouling properties. It is resistant to ultraviolet aging without discoloration, cracking or peeling.
Smart Images
Figure CN122405079A_ABST