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Graphene-based waterproof electrothermal film and production method thereof

A technology of graphene and electric heating film, which is applied in the direction of electric heating devices, ohmic resistance heating, electrical components, etc., can solve the problems of unsafe and environmentally friendly preparation process of electric heating film, and achieve safety and environmental protection in the preparation process, good waterproof performance, and raw material components The effect of environmental protection

Active Publication Date: 2017-01-04
福建久信科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Therefore, in view of the above content, the present invention provides a graphene-based waterproof electrothermal film and its preparation method, which solves the problem that the electrothermal film preparation process in the prior art is unsafe and environmentally friendly.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A graphene-based waterproof electric heating film, the waterproof electric heating film is composed of an electric heating non-woven fabric covered with a polyester plastic film on the upper and lower surfaces and affixed with a conductive copper foil. The electric heating non-woven fabric is impregnated with a non-woven fabric It is obtained by processing in a slurry, and the electric heating slurry comprises the following raw materials in parts by weight: 3 parts by weight of graphene, 50 parts by weight of polyacrylic acid emulsion, 20 parts by weight of 3-aminopropyltriethoxysilane, mineral oil 5 parts by weight, 3 parts by weight of potassium sorbate, 10 parts by weight of sodium dodecylbenzenesulfonate; the graphene is produced by the mechanical exfoliation graphite method, and the powder formed by monolayer graphene accumulation; has the following technology Indicators: Appearance, black gray powder; thickness = 4nm, diameter 15nm, water content = 1%; bulk density...

Embodiment 2

[0032] A graphene-based waterproof electric heating film, the waterproof electric heating film is composed of an electric heating non-woven fabric covered with a polyester plastic film on the upper and lower surfaces and affixed with a conductive copper foil. The electric heating non-woven fabric is impregnated with a non-woven fabric The electrothermal slurry contains the following raw materials in parts by weight: the raw material components of the electrothermal slurry are composed in the following parts by weight: 4 parts by weight of graphene, 50 parts by weight of polyacrylic acid emulsion, 3 parts by weight - 26 parts by weight of aminopropyltriethoxysilane, 5 parts by weight of mineral oil, 5 parts by weight of potassium sorbate, 10 parts by weight of sodium dodecylbenzenesulfonate; the graphene is produced by mechanically exfoliating graphite, A powder formed by stacking single-layer graphene; has the following technical indicators: appearance, black gray powder; thick...

Embodiment 3

[0039] A graphene-based waterproof electric heating film, the waterproof electric heating film is composed of an electric heating non-woven fabric covered with a polyester plastic film on the upper and lower surfaces and affixed with a conductive copper foil. The electric heating non-woven fabric is impregnated with a non-woven fabric It is obtained by processing in a slurry, and the electric heating slurry comprises the following raw materials in parts by weight: 5 parts by weight of graphene, 60 parts by weight of polyacrylic acid emulsion, 30 parts by weight of 3-aminopropyltriethoxysilane, mineral oil 10 parts by weight, 8 parts by weight of potassium sorbate, 15 parts by weight of sodium dodecylbenzene sulfonate; the graphene is produced by the mechanical exfoliation graphite method, and the powder formed by monolayer graphene accumulation; has the following technology Indicators: Appearance, black gray powder; thickness = 2nm, diameter 20nm, water content = 1.8%; bulk den...

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Abstract

The invention relates to an electrothermal film, and provides a graphene-based waterproof electrothermal film and a preparation method thereof. According to the invention, the problem that the electrothermal film preparation process is not safe and not environmentally-friendly in the prior art is solved. The method comprises the following preparation steps: (1) dispersing graphene into water and mixing with resin emulsion and aids to obtain graphene-based waterborne electrothermal pulp; (2) dipping non-woven fabric into the graphene-based waterborne electrothermal pulp and drying to prepare electrothermal non-woven fabric; (3) adhering conductive copper foils to the two ends of the electrothermal non-woven fabric; (4) covering the upper surface and the lower surface of the electrothermal non-woven fabric, adhered with the conductive copper foils, with polyester plastic films, and hot-sandwiching the electrothermal non-woven fabric in the middle of the polyester plastic films.

Description

technical field [0001] The invention relates to an electrothermal film, in particular to a graphene-based waterproof electrothermal film and a production method thereof. Background technique [0002] The electrothermal film is a film that can generate heat after being energized. It is made of conductive special ink and metal current-carrying strips, which are processed and hot-pressed between insulating polyester films. Electric heating film is divided into high temperature electric heating film for electronic appliances, military, etc. and low temperature electric heating film for civilian use. The traditional low-temperature electrothermal film used for floor heating must be used after heat-resistant plastic vacuum envelopes to ensure service life and safety. [0003] The conductive fillers usually used in electrothermal film are carbon powder (graphite powder, conductive carbon black), metal powder (nickel, silver, etc.). Metal powder has high density, high price, and i...

Claims

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Application Information

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IPC IPC(8): H05B3/34H05B3/14D06M15/263D06M11/74
CPCD06M11/74D06M15/263H05B3/145H05B3/34H05B2203/013
Inventor 王书传何文龙
Owner 福建久信科技有限公司
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