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A kind of electrothermal film and its preparation method and application

A technology of electric heating film and electric heating layer, which is applied in the direction of electric heating devices, ohmic resistance heating, and ohmic resistance heating parts, etc., can solve the problems of electric heating ink technology, resin aging organic solvents, etc., to improve service performance and fully water-based process , The effect of simple and continuous coating

Active Publication Date: 2020-08-28
江西江铜碳纳米材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Of course, there are also several core problems in the existing technology that have plagued the further promotion of electrothermal ink technology. In actual engineering applications, product life and energy consumption are the most concerned issues for consumers, and they are the bottlenecks that determine the further development of electrothermal ink technology.
[0004] However, the above-mentioned existing technologies still cannot meet the current research needs, and cannot completely avoid pollution problems such as resin aging and organic solvents. Therefore, the industry urgently needs to develop a new type of electrothermal film and its preparation method to avoid the defects of the prior art.

Method used

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  • A kind of electrothermal film and its preparation method and application
  • A kind of electrothermal film and its preparation method and application
  • A kind of electrothermal film and its preparation method and application

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preparation example Construction

[0031] Specifically, the preparation method includes the following steps:

[0032] (1) Highly conductive nano-carbon material and dispersant are uniformly dispersed in water to form a nano-carbon water-based dispersion liquid. In the nano-carbon water-based dispersion liquid, the content of nano-carbon material is 0.05~10wt%, and the content of dispersant is 0.02~ 5wt%;

[0033] (2) Mix 20-50 parts of hydrophilic resin, 1-10 parts of wetting agent, 1-10 parts of dispersant, 1-8 parts of cosolvent and 50-90 parts of water to form a fabric hydrophilic treatment solution;

[0034] (3) soaking the fiber base fabric with the fabric hydrophilic treatment solution, and then drying at 50-90°C to obtain a hydrophilic fabric;

[0035] (4) soaking the hydrophilic fabric with the nano-carbon aqueous dispersion, and then drying at 50-90° C. to obtain an electric heating layer;

[0036] (5) The electrodes are arranged in the electrothermal layer;

[0037] (6) The waterproof layer, insula...

Embodiment 1

[0079] First, configure the nano-carbon aqueous dispersion, wherein the content of multi-walled carbon nanotubes is 2wt%, the content of sulfate surfactant sodium lauryl sulfate dispersant is 1wt%, and the ultrasonic dispersion process is used to prepare uniformly dispersed nano Carbon water-based dispersion, stand for defoaming and use for later use. At the same time, prepare fabric hydrophilic treatment solution, disperse 30 parts of acrylamide-modified water-based acrylic resin, 2 parts of sodium secondary alkyl sulfonate, 2 parts of anionic surfactant dispersant, 5 parts of ethanol co-solvent, and 61 parts of water in high-speed dispersion Mix evenly under the machine, and set aside for defoaming. Next, the fiber base fabric is dipped into the fabric hydrophilic treatment liquid by dip coating process, and dried at 70° C. to obtain the hydrophilic fabric. Subsequently, the hydrophilic fabric is soaked in the nano-carbon aqueous dispersion by a dip-coating process, and dri...

Embodiment 2

[0084] First, configure the nano-carbon aqueous dispersion, wherein the content of multi-walled carbon nanotubes is 3wt%, the content of polyoxyethylene ether AEO-10P dispersant is 1wt%, and the ultrasonic dispersion process is used to prepare a uniformly dispersed nano-carbon aqueous dispersion , set aside after defoaming. Simultaneously, fabric hydrophilic treatment solution is prepared, 20 parts of polyethylene glycol modified water-based acrylic resins, 2 parts of secondary alkylsulfonate sodium, 2 parts of anionic surfactant dispersants, 5 parts of ethanol cosolvents, 61 parts of water in Mix evenly in a high-speed disperser, and set aside for defoaming. Next, the fiber base fabric is dipped into the hydrophilic treatment solution by dip coating process, and dried at 50° C. to obtain the hydrophilic fabric. Subsequently, the hydrophilic fabric is soaked in the nano-carbon aqueous dispersion by a dip-coating process, and dried at 50° C. to obtain an electric heating layer...

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Abstract

The invention discloses an electric heating film and a preparation method and an application thereof. The electric heating film comprises a waterproof layer, an insulating layer, an electric heating layer, an electrode, an insulating layer, a thermal insulation layer and a waterproof layer and the like; the electric heating layer comprises fiber base fabric, a high-conductivity nanometer carbon material and a functional auxiliary; and the high-conductivity nanometer carbon material is adsorbed on the surface or in the gap of the fiber base fabric. The preparation method comprises the steps oftaking the fiber base fabric as the bearing substrate of the high-conductivity nanometer carbon material, performing wetting to form a hydrophilic treatment liquid firstly, next, performing baking andcuring, then coating with a wetted nanometer carbon aqueous dispersion liquid, and next, performing baking and curing to obtain the electric heating layer; and next, gluing with the insulating layer,the thermal insulation layer, the waterproof layer and the electrode through hot melt adhesive to form the electric heating film. The electric heating film is free of binder resin, so that the problem of electric heating performance degradation caused by resin aging can be obviously avoided; and the electric heating film has the integrated performance of electric heating, waterproof property, thermal insulation, reflection and the like, and can be widely applied to the industries of home heating, floor heating, thermal insulation, industrial heating and the like.

Description

technical field [0001] The invention relates to an electric heating film and a preparation method thereof, in particular to a nano-carbon material electric heating film and its preparation method and application, belonging to the technical field of electric heating. Background technique [0002] Electric heating technology is currently a very widely used means of providing heat energy, especially in the fields of household heating, industrial and agricultural insulation and protection. Most of the existing electric heating heating technologies use wire-type heating elements such as metal resistance wires, such as metal resistance wires and carbon fiber heating cables used in existing electric floor heaters and electric blankets. Heating through this kind of cable needs to be transformed into planar heating in the end, but from the wire rod-shaped heating element to the planar heating surface, due to the small contact area between the wire and the surface, it is a typical unf...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B3/34H05B3/14H05B3/02
Inventor 陈名海崔亮
Owner 江西江铜碳纳米材料有限公司
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