▎ 摘　　要

NOVELTY - Heat preservation heating rock plate comprises base material rock plate (1), electrode (2), heating layer (3) and insulating layer (4). The base material rock plate the heating layer and the insulating layer are connected in turn, and the base rock plate and the heating layer is provided with the electrode. The heating layer comprises a modified polyurethane resin (I). The preparation raw material of the insulating layer comprises organic silicon polyether modified polyurethane polymer (II). USE - Heat preservation heating rock plate. ADVANTAGE - The heat preservation heating rock plate not only has the advantages of more environment-friendly and healthy, but also has light and thin, convenient for processing and manufacturing, easy transportation, wide application range of significance. DETAILED DESCRIPTION - Heat preservation heating rock plate comprises base material rock plate electrode, heating layer and insulating layer. The base material rock plate the heating layer and the insulating layer are connected in turn, and the base rock plate and the heating layer is provided with the electrode. The heating layer comprises a modified polyurethane resin of formula (I). The preparation raw material of the insulating layer comprises organic silicon polyether modified polyurethane polymer of formula (II), where R is an aliphatic or aromatic polyurethane residue, x, and z are 1-100 integer. An INDEPENDENT CLAIM is included for a method for preparing heat preservation heating rock plate, which involves claening base rock plate, adhering electrode to one surface of the base rock plate, adding polyethylene glycol, isophorone diisocyanate into the reaction container, stirring and reacting under the protection of nitrogen, raising the temperature to 60-120degrees Celsius, adding the first catalyst and diethanolamine to react for 2-8h, cooling and discharging to obtain the modified polyurethane resin for further use; according to the proportion, the modified polyurethane resin, graphene, conductive carbon nano powder, dispersing agent, antifoaming agent, flatting agent, de-ionized water are added to the stirring kettle, at 300r/min high speed stirring for 1 to 4h to obtain the crude graphene slurry, inputting the crude graphene slurry in the horizontal sand mill kettle cavity under the pressure condition, grinding to ensure the slurry fineness is in the range of 5microm to 10 microm, discharging to obtain the aqueous graphene electric heating slurry; uniformly coating the aqueous graphene electro-thermal slurry on one surface of the substrate rock plate adhered with the electrode, then drying to obtain the heating layer, the hydrogen-containing silicone oil, end hydroxyl allyl polyether is added to the reaction container, under the protection of nitrogen, stirring and raising the temperature to 40-130degrees Celsius, adding the second catalyst to react for 2h to 6h, cooling to 0 to 25degrees Celsius, continuously dripping isophorone diisocyanate-butyl acetate solution, adding the third catalyst, slowly raising the temperature to 60 degrees Celsius to 100degrees Celsius, reacting for 2h to 4h to obtain the organic silicon polyether modified polyurethane polymer for further use, adding organic silicon polyether modified polyurethane polymer, curing agent, drier and de-ionized water to the stirring cylinder, starting stirring, and at 200r/min rotating speed from foaming for 5 min to 10 min to obtain the foaming mixed material, scraping the foaming mixed material on the heating layer, then placing under the condition of 80degrees Celsius to 120degrees Celsius to form film and foam sealing reaction to obtain the heat preservation heating rock plate. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a heat preservation heating rock plate. Base material rock plate (1) Electrode (2) Heating layer (3) Insulating layer (4)