Flexible waterproof electric heating film and preparation method thereof

A flexible waterproof and electric heating film technology, which is applied in the direction of electric heating devices, ohmic resistance heating, ohmic resistance heating circuit diagrams, etc., to achieve good wearing experience and good flexibility

Pending Publication Date: 2019-02-05
杭州好德利智能科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current technology has not yet met people's needs for wearing, that is, an electric heating film that ensures the function of heating and keeping warm without losing softness, comfort and safety.

Method used

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  • Flexible waterproof electric heating film and preparation method thereof
  • Flexible waterproof electric heating film and preparation method thereof
  • Flexible waterproof electric heating film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] The top view of graphene heating film electrode structure and shape is as follows: figure 1 As shown, the electrode is an interdigitated electrode with equal spacing between branch electrodes, and the material is silver paste; the cross-sectional view of graphene heating film is shown in figure 2 As shown, the thicknesses of the waterproof cloth, the hot melt adhesive and the graphene layer are 160 μm, 50 μm, and 50 μm, respectively; the sheet resistance of the graphene layer is 130Ω / □. Bending the graphene heating film with a radius of curvature of 2 mm 1000 times increases the resistance by 1%, puts the graphene heating film in a washing machine for 1 hour, and the resistance increases by 0.5%.

Embodiment 2

[0069] The top view of graphene heating film electrode structure and shape is as follows: image 3 As shown, the electrode is an interdigitated electrode with equal spacing between branch electrodes, and the material is copper paste; the cross-sectional view of the graphene heating film is shown in figure 2 As shown, the thicknesses of the waterproof cloth, the hot melt adhesive and the graphene layer are 150 μm, 40 μm, and 40 μm, respectively; the sheet resistance of the graphene layer is 150Ω / □. Bending the graphene heating film with a radius of curvature of 2mm 1000 times increases the resistance by 0.5%, puts the graphene heating film in a washing machine for 1 hour, and the resistance increases by 0.3%.

Embodiment 3

[0071] The top view of graphene heating film electrode structure and shape is as follows: Figure 4 As shown, the electrode is an interdigitated electrode with equal spacing between branch electrodes, and the material is silver paste; the cross-sectional view of graphene heating film is shown in figure 2 As shown, the thicknesses of the waterproof cloth, the hot melt adhesive and the graphene layer are 130 μm, 40 μm, and 40 μm, respectively; the sheet resistance of the graphene layer is 150Ω / □. Bending the graphene heating film with a radius of curvature of 2mm 1000 times increases the resistance by 0.5%, puts the graphene heating film in a washing machine for 1 hour, and the resistance increases by 0.2%.

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Abstract

The invention discloses a flexible waterproof electric heating film and a preparation method thereof. The flexible waterproof electric heating film comprises a core heat generating layer comprising afirst surface and a second surface for electrical heating; and a first insulating layer disposed on the first surface, a second insulating layer disposed on the second surface; a first tarpaulin layerdisposed on the surface of the first insulating layer; and a second waterproof cloth layer disposed on the surface of the second insulating layer. The core heat generating layer includes a conductivefilm and a circuit line disposed on the conductive film. After the circuit line is powered on, the circuit line forms a conductive path with the conductive film, and the conductive film converts electrical energy into heat to release heat.

Description

technical field [0001] The invention relates to a flexible waterproof electrothermal film and a preparation method thereof. Background technique [0002] As people's requirements for clothing are getting higher and higher, the requirements for thermal insulation fabrics are also higher and higher. However, in the severe winter, it is not enough to rely on the thermal insulation function of fabrics alone. Although there are textiles with heating function in the prior art, the waterproof performance of these textiles is poor, and the heating parts are thick and heavy, poor in flexibility, and cannot be as soft as clothing. Moreover, these heated textiles have poor water resistance, and water leakage will easily lead to a short circuit of the heating wire, and even have a potential safety hazard of causing fire or burns. Specifically, the electrothermal film in anti-woven fabrics related to electric heating is usually packaged with substrates such as PET and PI. Such electroth...

Claims

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Application Information

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IPC IPC(8): H05B3/36H05B3/02H05B3/12H05B3/10
CPCH05B3/0019H05B3/10H05B3/12H05B3/36H05B2203/013H05B2203/017H05B2203/036H05B2203/006H05B3/20
Inventor 刘海滨马仁德谭化兵袁凯王红福钱洲侠
Owner 杭州好德利智能科技有限公司
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