一种水性聚氨酯防火涂料的制备方法
By using dihydroxymethylimidazolium DOPO as a chain extender, a waterborne polyurethane fire-retardant coating was prepared, solving the problems of water resistance and flame retardancy of polyurethane coatings and achieving environmentally friendly and highly efficient fire-retardant performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NANTONG BAOLILAI COATINGS CO LTD
- Filing Date
- 2025-07-07
- Publication Date
- 2026-07-17
AI Technical Summary
Existing polyurethane coatings suffer from high solvent volatility, serious pollution, and significant health hazards. Water-based polyurethane coatings also have poor water resistance and are flammable, limiting their application in the fire protection field.
Waterborne polyurethane fire-retardant coatings were prepared by reacting dihydroxymethylimidazolium (DOPO) with polyester polyol and diisocyanate as a chain extender. The water resistance and flame retardant properties of the coatings were improved by the flame retardancy and aromatic ring structure of DOPO.
The prepared waterborne polyurethane fire-retardant coating exhibits good emulsion stability, significantly reduces water absorption and heat release rate during combustion, and enhances the coating's water resistance and flame retardant properties.
Smart Images
Figure SMS_2 
Figure SMS_3 
Figure SMS_4