Heating film and preparation method thereof, device adopting heating film and preparation method for device

Abstract

The invention discloses a heating film and a preparation method thereof, a device adopting the heating film and a preparation method for the device. The heating film comprises a plurality of layers ofgraphene and carbon fibers. Specifically, the heating film comprises 0.1-5 parts by weight of the graphene, 60-80 parts by weight of the carbon fibers, 3-5 parts by weight of a bamboo paper pulp, 0.5-1 part by weight of a dispersing agent, 0.2-0.5 part by weight of a coupling agent, and a defoaming agent. The heating film provided by the invention has high safety, reliability, uniqueness and practicability; compared with a traditional metal heating material, the heating film provided by the invention can save energy by 30% or above; meanwhile, heating films provided by the invention can be intransverse connection and longitudinal connection with one another; a single heating film can reach a width of 1 meter and can be normally used under a power supply with a voltage of 36 VDC, which isunreachable for the traditional metal heating material; meanwhile, the heating film can continuously reach a surface temperature of 50 DEG C under the power supply with the voltage of 36 VDC, has high carbon content, is not prone to oxidation, can be continuously used for a long time, only has a service life attenuation rate of 1.7%, and can reach a heat utilization rate of about 99.8%.

Description

technical field [0001] The present invention relates to a thermal product and a manufacturing method thereof, in particular to a heating film and a manufacturing method, equipment using the heating film and a manufacturing method. Background technique [0002] At present, the electric heating film used by people uses 220V alternating current to generate heat through polymers, inks, carbon fiber tubes or metal wires (sheets), and there are potential safety hazards of current leakage and radiation generation, and the heating film does not heat uniformly without thermal insulation. Insufficient heat loss due to thermal performance, rapid aging and short service life; moreover, the 36VDC power supply cannot be continuously heated, and the temperature cannot be guaranteed, so the surface temperature cannot continuously reach the required temperature of 50°C to maintain indoor and certain special conditions. The temperature required by the occasion, and some still have radiation, ...

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Problems solved by technology

[0002] At present, the electrothermal film used by people uses 220V AC to generate heat through polymer, ink, carbon fiber tube or metal wire (sheet), and there are potential safety hazards such as current leakage and radiation, and the heating film does not heat uniformly. The lack of heat loss due to thermal performance, fast aging and short service life; moreover, it is impossible to achieve continuous heating of 36VDC power supply, and cannot guarantee constant temperature, so the surface temperature cannot continue to reach the required temperature of 50°C to maintain indoor and certain special The temperature required by the occasion, some still have radiation, the cost is still high, not environmentally friendly, and cannot widely meet the needs of the public

[0003] Therefore, the electrothermal film of the prior art cannot satisfy people's demand for

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