A flame-retardant water-based coating and preparation method thereof
By using composite flame retardants in water-based coatings, especially ammonium polyphosphate and modified magnesium aluminum silicate, combined with the grafting technology of polydopamine and functional compounds, the problem of insufficient flame retardant performance of existing water-based coatings is solved, and efficient flame retardant effect, good adhesion and antibacterial properties are achieved.
Patent Information
- Application Number
- CN202510081514.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2045-01-20
AI Technical Summary
The flame retardant properties of existing water-based coatings are limited, and properties such as adhesion are insufficient, making it difficult to meet high flame retardant requirements.
A water-based coating with excellent mechanical properties, adhesion, and antibacterial properties was prepared using polyurethane acrylate as the main component, along with a composite flame retardant, dispersant, defoamer, film-forming aid, and water. The composite flame retardant is composed of ammonium polyphosphate and modified magnesium aluminum silicate. The modified magnesium aluminum silicate is grafted with a polydopamine structure that has adhesive and antibacterial properties, as well as a functional compound containing an antibacterial quaternary ammonium salt, a flame-retardant benzotriazole, and a DOPO group.
The flame retardant properties of water-based coatings have been significantly improved, with the limiting oxygen index reaching more than 35% and the UL-94 grade being V-0. The mechanical properties, adhesion and antibacterial properties of the coatings have also been improved.