abstract |
A flame-retardant coating material and a flame-retardant substrate are provided. The flame-retardant coating material comprises: a polyurethane resin, an isocyanate compound has a plurality of isocyanate (-NCO) groups, and at least one metal hydroxide. The isocyanate groups of the isocyanate compound are linked to the polyurethane resin and the metal hydroxide, respectively. The flame-retardant coating material is halogen-free and can provide flame-retardant property and comply with environmental protection regulations. |