▎ 摘　　要

NOVELTY - Refractory graphene color steel composite thermal insulation board comprises color steel plate box provided with a graphene foamed concrete core material. The color steel plate box body is provided with a lower box body and an upper cover. The upper case is disposed at an upper portion of the lower case. The lower case is provided with a bottom plate and four side panels, and the bottom plate and the four side panels enclose a closed box structure, and the upper surface of the bottom plate a first reinforcing bar is fixedly disposed, and a second steel bar fixedly connected is disposed on a lower surface of the upper cover, the first reinforcing bar and the second reinforcing bar are not in contact with each other. The core material is filled in the interior of the color steel box. USE - The composite thermal insulation board is useful in field of construction material. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing refractory graphene color steel composite thermal insulation board comprising (1) Weighing cement, fly ash, lithium carbonate, polypropylene fiber, hyperbranched epoxy resin, graphene oxide, foaming agent, foam stabilizer and water, (2) Mixing the cement, fly ash, lithium carbonate and polypropylene fibers weighed in step (1), mixing for the first time, adding a part of the water weighed in step (1) for the second stirring, mixing, adding the hyperbranched epoxy resin weighed in step (1), and stirring for the third time, until it is in a flowing slurry, to obtain a cement slurry, (3) adding the graphene oxide weighed in step 1) to the remaining portion of the water weighed in step (1), the ultrasonic dispersion is uniform, and after heating to 50 degrees C, the foam is weighed by adding the step (1) product while stirring, adding the agent and foam stabilizer, further stirring until foaming, and a graphene foaming agent is obtained, (4) using graphene foaming agent, slowly introducing into the cement slurry prepared in the step (2), and stirring uniformly to obtain graphene foaming concrete slurry, (5) preparing of color steel composite thermal insulation board, pouring the graphene foamed concrete slurry prepared in step (4) into the lower box body, fill it, shaking it for 2 minutes, and after the concrete slurry is smoothed, the upper cover is vertically covered and flattened, and curing for 28 days to obtain the product.