| abstract |
The invention relates to a composite board with thermal insulation function and a preparation method thereof, belonging to the technical field of energy-saving material boards. The composite board includes a support body and a cavity in the support body, the cavity is filled with a modified polyurethane foam material, and the support body is a cement-based organic-inorganic thermal insulation material. On the one hand, the present invention makes the material have excellent flame retardant performance by introducing a thermal insulation accelerator into the cement-based material, and introduces modified polypropylene fibers, so that the material has excellent compressive strength; on the other hand, the modified polyurethane foaming Introducing flame retardant additives into the material to improve the flammability of the polyurethane foam material, and because the foamed polyurethane material contains a large number of air bubbles, it has excellent thermal insulation properties, so that the modified polyurethane foam material not only has excellent thermal insulation properties performance and flame retardant properties. Therefore, the composite board provided by the present invention has excellent thermal insulation performance, and has the advantages of low combustion and less smoke during combustion. |