| abstract |
The invention relates to the technical field of decorative materials, in particular to a high-impact-resistance A-level non-combustible high-pressure decorative plate and a preparation method thereof. The melamine formaldehyde resin dipping coating on the surface of the decorative plate has larger thermal shrinkage stress in a continuous high-temperature environment, and the surface of the whole decorative plate is easy to crack and curl, so that the decorative effect is lost. Based on the problems, the invention provides a high-impact-resistance A-level non-combustible high-pressure decorative plate which sequentially comprises a decorative layer, a buffer layer, an inorganic plate, the buffer layer and the decorative layer from top to bottom, wherein the decorative layer is formed by impregnating decorative fibers in modified melamine-formaldehyde resin, and a certain content of waterborne polyurethane is added in the modified melamine-formaldehyde resin in the using process, so that the thermal shrinkage stress of a melamine-formaldehyde resin impregnated coating on the surface of the decorative plate is effectively reduced, the stability of the high-impact-resistance A-level non-combustible high-pressure decorative plate in a high-temperature environment is greatly improved, single-layer multi-pressure can be realized, the energy loss is reduced, and the high-impact. |