▎ 摘　　要

NOVELTY - Pressure sensitive electric heating fabric comprises fabric layer and electric heating film, where the heating layer of the electric heating membrane is provided with a pressure sensitive characteristic.The heating layer of the electric heating film is provided with a pressure sensitive characteristic, the heating layer comprises 95-98 wt.% polyurethane resin, 2-5 wt.% graphene and 0.01-0.5wt.% black phosphorus/metal oxide nano-composite material. USE - Pressure sensitive electric heating fabric used in electric blanket ADVANTAGE - The pressure sensitive electrothermal fabric has excellent pressure sensitive characteristics, and reduces energy consumption and saves power. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: 1. A kind of electric blanket, which comprises pressure sensitive electric heating fabric. 2. A sitting-lying device, where one position of the sitting and lying tool is contact with the pressure sensitive electric heating fabric at the position of supporting the human body. 3. A method for preparing pressure sensitive electrothermal surface material, which involves uniformly dispersing black phosphorus/metal oxide nano-composite material in the deionized water after removing oxygen to obtain the black phosphorus/metal oxide nano composite material dispersion liquid, the dispersion liquid concentration 1-10mg/ml, dispersing the graphene powder of the needed quality in the nano-composite material dispersion; the concentration of the graphite dispersion in the 50- 100mg/ml, adding the aqueous polyurethane emulsion of the needed quality in the dispersion obtained by the preparation, further dispersing uniformly to obtain the aqueous slurry, the aqueous polyurethane solid content is 30-60 wt.%, coating the aqueous slurry by means of scraping, scraping the wet film with specific thickness on the release film, drying the wet film under the condition of heating to obtain dry film; the thickness of the wet film is 200-800 microns, and the drying temperature of the wet film is 60-100℃, carrying out steps in a glove box filled with inert gas, printing complete metal conductive paste layers on the upper and lower surfaces of the dry film prepared, drying, and then taking the dry film as a heating electrode, and respectively leading out leads on the upper and lower layers for connecting a power supply, the dry film with the surface containing the metal electrode and the lead is a heating layer of the electrothermal film, the metal conductive paste is any one of conductive silver paste, conductive copper paste and conductive aluminum paste, drying temperature is 100-150℃, arranging a fabric on the electrothermal film heating layer prepared to obtain the pressure sensitive electrothermal fabric. DESCRIPTION OF DRAWING(S) - The drawing shows a graph showing the relationship between the resistor and the pressure of the sample preparation to the embodiment 1-4 of the present invention and the ratio 1.