Water-based graphene electrothermal film and preparation method thereof

Abstract

The invention belongs to the technical field of electric heating, and particularly relates to a water-based graphene electrothermal film which comprises a first insulating protective layer, a graphene heating layer and a second insulating protective layer. The first insulating protective layer and the second insulating protective layer are attached to the top and the bottom of the graphene heating layer respectively, the graphene heating layer comprises a base material layer, a graphene conducting layer, an insulating layer, a heat preservation layer, a waterproof layer and an electrode, the outer wall of the base material layer is coated with the graphene conducting layer, and the outer wall of the graphene conducting layer is coated with the insulating layer; the outer wall of the insulating layer and the outer wall of the electrode are both coated with the heat preservation layer, the outer wall of the heat preservation layer is coated with the waterproof layer, and the left side and the right side of the graphene conducting layer are connected with the electrode. According to the invention, the main body of the solvent is water, so that the use of an organic solvent is reduced to the maximum extent. From the perspective of environmental protection, the water-based graphene electrothermal film only uses water as a diluent, is harmless to human health, does not contain harmful cancerogenic substances in preparation, and is non-toxic and odorless.

Description

technical field [0001] The invention relates to the technical field of electric heating, in particular to a water-based graphene electric heating film and a preparation method thereof. Background technique [0002] The electric heaters used in current electric heating materials basically use graphite, carbon powder, conductive carbon black, carbon fiber and other powder materials, and the solvents are mostly oily, mainly using benzene, ketones, esters, etc. as diluents , contains a strong pungent taste, and the high VOC content is harmful to human health; there are also different degrees of harm to the environment; a large amount of harmful gases will be slowly released and volatilized for about 10 to 15 years, and continue to affect the human body. At the same time, due to the preparation process and the characteristics of its three-dimensional structure, its heating uniformity and service life are poor, and the power consumption will generally increase after 2-3 years of u...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a water-based graphene electrothermal film and its preparation method, to solve the harmfulness to human health proposed in the above background technology, the harm to the environment of different sizes, the uniformity of heating and the service life are relatively poor, generally The problem that power consumption will increase after 2-3 years of use

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