▎ 摘　　要

NOVELTY - Bendable heating film comprises a packaging layer, a conductive layer, a heating layer, a first bonding layer, a substrate and a second bonding layer from top to bottom in sequence. The first bonding layer and the second bonding layer are made of acrylic glue. A thickness of the first bonding layer and the second bonding layer is 10-200 mu m. The substrate is made of polyethylene naphthalate, polyimide or glass fiber felt material with a thickness of 10-500 mu m. The packaging layer is made of PET material with a thickness of 10-500 mu m. The conductive layer is a silver paste coating or a metal foil, preferably a copper foil. The conductive layer is adhered on two ends of the heating layer. A thickness of the heating layer is 20-1500 mu m. The heating layer is made of carbon nano-tube, graphene oxide, aqueous polyurethane, sodium dodecylbenzene sulfonate, thickening agent and flatting agent. USE - Used as bendable heating film. ADVANTAGE - The film: is bendable, and easy to stick; has adhesive tape structure, good stability, low surface resistance, uniform surface coating and controllable size. The method: is simple; and has short period and high film conductivity. The film has surface resistance of 20-200 omega /sq and heating power of 100-2400 W/m2. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the film, comprising: (i) cutting polyethylene naphthalate, polyimide or glass fiber felt substrate into a certain size coiled material; (ii) pouring ethanol solution into coating liquid groove of coating machine, and orderly passing substrate through coating liquid groove and drying system to remove dust and dirt on surface of substrate, and uniformly coating acrylic glue on coiled material by using coating machine to prepare coiled material with single-sided adhesive; (iii) preparing graphene oxide and carbon nano-tube into conductive mixed solution, coating conductive mixed solution on viscous side of substrate by using coating machine to prepare flexible transparent conductive film, adjusting concentration of conductive mixed solution during process of coating conductive mixed solution, adjusting coating thickness of flexible transparent conductive film by coating speed of machine, so as to change and adjust light transmittance and surface resistance of flexible transparent conductive film; (iv) before coiling, adhering conductive metal foil with double-sided adhesive on two ends of conductive film obtained in step (iii), or coating conductive silver paste with a certain width on two ends of film and drying; and (v) packaging conductive film coated on one surface of conductive mixed solution by coiled material with same width using plastic package system, coating a layer of acrylic glue on uncoated side of flexible transparent conductive film and covering a layer of release protective film by using coating machine, and forming roll. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of bendable heating film (Drawing includes non-English language text).