▎ 摘　　要

NOVELTY - Electrothermal thin film material with uniform heating comprises 20-30 pts. wt. conductive silver powder, 50-80 pts. wt. glass powder, 30-50 pts. wt. synthetic resin adhesive, 40-60 pts. wt. graphene, 20-30 pts. wt. acrylic resin liquid, 7-9 pts. wt. ethanol, 6-8 pts. wt. propylene glycol methyl ether, 23-25 pts. wt. conductive carbon black, 5-8 pts. wt. dispersant, 2-4 pts. wt. K155 antifoaming agent, 25-30 pts. wt. de-ionized water, 10-15 pts. wt. V610 emulsion, 10-15 pts. wt. conductive metal powder, 5-10 pts. wt. W35 aqueous wax, 4-6 pts. wt. triethanolamine, 2-4 pts. wt. corrosion inhibitor, 6-8 pts. wt. K155 antifoaming agent. USE - Electrothermal thin film material with uniform heating used for electronic appliance, military and the electric heating film heating system is different from radiator, air conditioner, radiator is represented by point heating system, wire heating system represented by heating cable, and low carbon heating high technology product developed by modern aerospace technology in the field of heating field. ADVANTAGE - The electrothermal thin film material with uniform heating can be well absorbed by human body, the total conversion rate of the effective electric heating energy is very high, at the same time, the superconducting property of the special graphene material can ensure stable heating performance, it is good for people to use, it has environment-friendly function. The toxic and harmful gas generated by purifying the heat sealing device when operating, making the electric heating film is working staff easy to suffer from nose, throat and lung diseases, so as to ensure the life health of the working staff, indirectly lifting the production efficiency. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing an electrothermal thin film material with uniform heating, involving: a. adding acrylic resin liquid, ethanol, propylene glycol methyl ether and de-ionized water into the dispersing kettle fully stirring, and then the conductive carbon black, dispersant, antifoaming agent into the dispersing kettle, fully dispersing and stirring uniformly, moving dispersed material to the sand mill for grinding, grinding 3-4, the fineness is 15 micrometer, continuously grinding, until the fineness reaches the requirement, moving grinded material to the dispersing kettle, and then the de-ionized water, V610, conductive metal powder, aqueous wax, triethanolamine, corrosion inhibitor and antifoaming agent into the dispersing kettle, fully dispersing uniformly to obtain heating slurry for further use conductive carbon slurry for further use; b. adding conductive silver powder, glass powder, synthetic resin adhesive and graphene, grinding, dispersing, filtering to obtain the heating slurry for further use; c. designing graphene heating pattern, using a printing device to print the conductive carbon slurry according to the preset pattern, making into a film with a shielding circuit, using a printing device to print the heating slurry on the back of the film with a shielding circuit according to the pre-designed conductive circuit diagram, adjusting the resistance of the heating slurry to satisfy the power design requirement according to the requirement, using the printing device to print the conductive carbon slurry on the heating carbon slurry according to the pre-designed pattern, the metal current carrying strip and printed silver paste circuit, film of heating carbon slurry circuit, and hot melt adhesive film using compound machine for hot pressing composite, where the metal current carrying strip is located in the middle of the heating carbon slurry film and the pre-coating film, the metal current carrying strip conveying current part and silver paste contact not and heating carbon slurry contact; d. compounding the hot melt adhesive film, the metal current carrying strip and the electric heating film prepared by using a hot pressing compound machine, wherein the metal current carrying strip is located between the hot melt adhesive film and the printing electromagnetic shielding layer, making into the electric heating film with leakage current absorbing layer; e. connecting the electric heating film according to the requirement of using cold pressing terminal or welding process, wherein the metal current carrying strip of the printing electromagnetic shielding layer is connected with the zero line of the connection power supply, the current carrying strip of the heating carbon slurry respectively with the zero line and the live wire of the power supply; and f. attaching the upper surface and the lower surface of the electric heating film connected with the power supply to the insulating protective layer, then connecting the insulating protective layer with the ground wire of the power supply; at last, placing on the heat sealing device for heat sealing.