The invention belongs to the field of carbon materials, and particularly relates to a preparation method for a
graphene heating film.
Graphene powder is evenly scattered in an
organic solvent by using an ultrasonic method, a stirring method and other methods to obtain a
graphene solution with the concentration of 0.05mg / ml to 0.5mg / ml, the
graphene evenly covers an organic filter film or a water-attributed filter film through a suction
filtration method, the
grapheme film and the filter film are separated through a mechanical stripping method or a soaking method or an
organic solvent dissolving method, the graphene thin film is obtained, electrodes are added to the graphene thin film, and heat can be generated by applying voltages on the graphene thin film. According to the preparation method for the graphene
heating film, the unique two-dimensional nano-structure, the characteristic of the large ratio of thickness to radial dimension and the characteristic of the high specific surface area of the graphene are utilized, through the preparation technology, evenly communicated conductive networks are formed among graphene sheet
layers, and much heat can be generated by applying low voltages (1-10V). The preparation method for the graphene
heating film has the advantages that the preparation process is simple and easy to control and free of
pollution, and the size is adjustable, and the preparation method for the graphene heating film is suitable for large-scale production.