一种井下消焰与定向结晶强化的防火涂料及其制备方法
By introducing LBL-modified ZIF-67, mullite powder, and hollow alumina spheres into the underground fire retardant coating, an interlocking structure of flame extinguishing core and directional crystalline phase is formed, solving the problems of easy loosening and insufficient flame extinguishing capacity of existing coatings at high temperatures, and achieving efficient flame extinguishing and structural strengthening effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA UNIV OF MINING & TECH
- Filing Date
- 2025-12-15
- Publication Date
- 2026-07-17
AI Technical Summary
Existing underground fireproof coatings lack active flame-extinguishing components, cannot effectively adsorb combustible media such as methane and coal dust underground, and the coating is prone to loosening at high temperatures, making secondary reinforcement and repair impossible, resulting in interruption of protection.
Using water-based acrylic emulsion as the film-forming base material, LBL-modified ZIF-67 as the flame-retardant core, and mullite powder and hollow alumina spheres as oriented crystalline phases, a coating with active adsorption flame retardancy and oriented structural reinforcement is formed through synergistic compatibility. Combined with LBL interlayer assembly technology and a dense columnar crystal layer induced by silica sol, efficient film formation and high-temperature stability are achieved.
It achieves efficient film formation and adhesion, active adsorption and flame extinguishing, and directional structural reinforcement. The coating maintains high integrity at high temperatures, has a fast flame extinguishing response, and a low coating peeling rate, which can effectively suppress the rapid spread of flames.
Smart Images
Figure CN121495415B_ABST