▎ 摘　　要

NOVELTY - Porous niobium carbide MXene/reduced graphene oxide base floor heating brick comprises insulation, porous niobium carbide MXene/reduced oxidation graphene-based heating film and tile layer. The porous niobium carbide MXene/reducing graphene oxide-based heating film is sandwiched between the insulation layer and the ceramic tile layer. The porous niobium carbide MXene/reduced graphene oxide-based heating film includes a first transparent insulating layer and porous niobium carbide MXene/reduced graphene oxide based conductive film. The second transparent insulating layer and the electrode, the first transparent insulating layer covers one side of the porous niobium carbide MXene/reduced graphene oxide-based conductive film. The second transparent insulating layer covers the other side of the porous niobium carbide MXene/reduced graphene oxide-based conductive film. USE - Used as porous niobium carbide MXene/reduced graphene oxide base floor heating brick. ADVANTAGE - The brick: has superior electronic conductivity, good flexibility and tensile resistance, excellent thermal conductivity, infrared emission performance, antibacterial performance and structural stability. DETAILED DESCRIPTION - Porous niobium carbide MXene/reduced graphene oxide base floor heating brick comprises insulation, porous niobium carbide MXene/reduced oxidation graphene-based heating film and tile layer. The porous niobium carbide MXene/reducing graphene oxide-based heating film is sandwiched between the insulation layer and the ceramic tile layer. The porous niobium carbide MXene/reduced graphene oxide-based heating film includes a first transparent insulating layer and porous niobium carbide MXene/reduced graphene oxide based conductive film. The second transparent insulating layer and the electrode, the first transparent insulating layer covers one side of the porous niobium carbide MXene/reduced graphene oxide-based conductive film. The second transparent insulating layer covers the other side of the porous niobium carbide MXene/reduced graphene oxide-based conductive film, where one end of the electrode is electrically connected to the porous niobium carbide MXene/reduced graphene oxide-based conductive film and the other end of the electrode extends outside the first transparent insulating layer or the second transparent insulating layer. The preparation of the porous niobium carbide MXene/reduced graphene oxide-based conductive film comprises (i) providing graphite powder and niobium aluminum carbide powder, grinding the graphite powder and niobium aluminum carbide powder to a fineness of not greater than 200, where the mass ratio of the graphite powder and the niobium aluminum carbide powder is 1-8:1 and mixing graphite powder with niobium aluminum carbide powder and pressing to form a working electrode, the preparation of niobium carbide/graphite oxide material comprises fixing the working electrode in the electrolytic cell, adding electrolyte into the electrolytic cell so that the working electrode is immersed in the electrolyte, where the electrolyte is a fluorine-containing anion liquid as an etching agent, using the working electrode as a anode, applying a voltage to ionize the fluorine-containing anion liquid to generate fluorine radicals and centrifuging the electrolyte to collect the precipitate to obtain the niobium carbide/graphite oxide material, preparation of niobium carbide MXene/reduced graphene oxide dispersion comprises dissolving the niobium carbide/graphite oxide material in isopropanol in a mass-volume ratio of 50-500 mg/ml, probing the isopropanol containing niobium carbide/graphite oxide material ultrasonically, centrifuging the isopropanol containing niobium carbide/graphite oxide material at 8000-15000 revolutions/minute for 10-30 minutes, collecting the precipitate, soaking the precipitate in a reducing reagent to reduce, performing centrifugation, collecting the precipitate, drying, dispersing the dried precipitate in the first dispersant, and preparing the niobium carbide MXene/reduced graphene oxide dispersion after ultrasonic in a water bath and preparation of particulate resin slurry comprises providing the particulate powder and the second dispersant, mixing the two, adding resin into the second dispersant while stirring the second dispersant, preparing a particulate resin slurry, the diameter of the particulate powder is 0.1-1 mu m, the concentration of the particulate powder is 10-100 mg/ml, and the concentration of the resin is 50-500 mg/ml, preparation of porous niobium carbide MXene/reduced graphene oxide based conductive ink comprises mixing the particulate resin slurry, niobium carbide MXene/reduced graphene oxide dispersion, polyacrylonitrile-maleic anhydride copolymer and stabilizer in a mass ratio of 500:1000-10000:1-50:5-20, transferring into a protective gas environment and stirring at 65-85 degrees C until the volume is concentrated to 1/2 to 1/6 to prepare porous niobium carbide MXene/reduced graphene oxide-based conductive ink and preparation of porous niobium carbide MXene/reduced graphene oxide-based conductive film comprises forming the porous niobium carbide MXene/reduced graphene oxide-based conductive ink into a film by printing, scraping or printing, soaking the film in a dilute acid solution, washing and drying to prepare porous niobium carbide MXene/reduced graphene oxide Base conductive film, where the niobium aluminum carbide powder is Nb3AlC2 powder or Nb4AlC3 powder, and the particulate powder is carbonate powder or metal oxide powder. An INDEPENDENT CLAIM is also included for preparing porous niobium carbide MXene/reduced graphene oxide base floor heating brick, comprising (i) adding the porous niobium carbide MXene/reduced graphene oxide-based heating film into the upper mold cavity, placing the polyurethane primer in the lower mold cavity, when the polyurethane base material is heated, foaming and buckling the upper mold cavity and the lower mold cavity together; and (ii) forming the porous niobium carbide MXene/reduced graphene oxide-based heating film and the heating insulation layer integrally to form a heating insulation layer and bonding the tile layer to the porous niobium carbide MXene/reduced graphene oxide based heating film. DESCRIPTION OF DRAWING(S) - The drawing shows the schematic representation of an exploded view of porous niobium carbide MXene/reduced graphene oxide base floor heating brick.