Preparation process of low-voltage olefin-carbon flexible electrothermal film

Abstract

The invention relates to a preparation technology of a low-voltage olefince-carbon flexible electrothermal film. The preparation technology comprises the steps of preparing coating slurry; coating a bottom film with the coating slurry in a secondary coating manner to obtain a base film; carrying out ageing treatment on the base film and then carrying out gumming; covering the upper surface of the base film which is subjected to ageing treatment and gummed with an upper cover, carrying out hot-pressing bonding by using a thermal compound machine to obtain an electrothermal film; and cutting the electrothermal film to expose a conductive layer which is used for connecting an external circuit. According to the preparation technology, graphene is added to the coating slurry as a medium for strengthening the conductivity and the electrothermal film with good flexibility and low resistance is obtained in a secondary coating manner.

Description

technical field [0001] The invention relates to a preparation process of an electric heating film, in particular to a preparation process of a low-voltage alkene-carbon flexible electric heating film. Background technique [0002] Electrothermal film is a film material that can generate heat through electricity, and is mainly used in fields such as electric heating and smart clothing. The existing electrothermal film generally needs to be driven by a high voltage of 220V, and once it leaks, it will easily cause safety hazards. [0003] At present, the same kind of carbon heating film at home and abroad is carbon crystal film or carbon fiber film. This kind of electric heating film has high resistance and must use 220V voltage, so it will bring hidden dangers to human safety. At present, the market scale of carbon crystal film is considerable, but the problem of potential safety hazards has not been resolved. With the improvement of people's safety awareness, the market of ...

AI Technical Summary

Problems solved by technology

The existing electrothermal film generally needs a high voltage drive of 220V, and once the leakage is easy to cause safety hazards

[0003] At present, the same kind of carbon heating film at home and abroad is carbon crystal film or carbon fiber film. This kind of electric heating film has high resistance and must use 220V voltage, so it will bring hidden dangers to human safety.

At present, the market scale of carbon crystal film is considerable, but the existing safety hazards have not been resolved

[0005] 1. The voltage required by the carbon crystal electric heating film is extremely high, which is much higher than the safe voltage of the human body. Improper use will cause safety hazards

[0006] 2. The high-voltage electric heating film cannot be driven by lithium-ion batteries and other power sources, so its use must depend on the mains power, which limits the use of electric heating film

[0007] 3. The carbon crystal heating film uses materials such as adhesives that are harmful to the human body. The adhesive is prone to destabilization and aging at high temperatures, which makes the carbon crystal particles of the electric heating film loose, which affects the service life and calorific value.

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