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Low-temperature radiation electrothermal film and preparation method thereof

A low-temperature radiation and thin-film technology, applied in electric heating devices, ohmic resistance heating, electrical components, etc., can solve problems such as the inability to maintain the uniform dispersion of the ink, the unsatisfactory electrical conductivity of the electrothermal ink, and the reduction of the electrical conductivity of the electrothermal coating. The power can be adjusted flexibly, the electric heating power density is uniform, and the effect of improving the peel strength

Inactive Publication Date: 2013-09-18
KMT纳米科技(香港)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the carbon nanotubes in the above-mentioned conductive ink cannot maintain the same uniform dispersion state in the ink after printing and drying, and the components such as resin and residual surfactant will also reduce the conductivity of the electrothermal coating
At present, carbon nanotubes are used as conductive materials for electrothermal inks, which have problems of unsatisfactory conductivity and high price and cost.

Method used

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  • Low-temperature radiation electrothermal film and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0071] In the following, the specific use of the ink prepared in the above formula 2 for the preparation of the electric heating film will be described.

[0072] The screen printing templates provided by Shenzhen Bantian Xinstar Screen Printing Materials Co., Ltd. are used. Their specific parameters are as follows. The length and width are 300mm and 200mm respectively, and the screen B is made on both sides of the screen with a length of 7mm. Strip printing side, for printing silver paste, hand-printed with polyurethane squeegee.

[0073] Mesh Wire diameter (micron) Pore ​​size (micron) Thickness (microns) Tension (N / cm) Screen A 325 28 40－50 56 30 Screen B 500 18 30－40 27 25

[0074] The operation steps are as follows:

[0075] (1) Prepare materials and tools: clean screen B and dry it, cut PET film and hot melt adhesive film (M-716A type, thickness about 50 microns) whose length and width are slightly larger than screen B, the th...

Embodiment 2

[0082] Print 3 times in the step of making the carbon nano conductive ink layer, other operations are the same as in Example 1, the thickness of the carbon nano conductive ink is measured to be about 5 microns, and the square resistance measured before the composite upper layer PET film step is 81Ω / □.

Embodiment 3

[0084] The carbon nano conductive ink of formula 3 is used in the step of making the carbon nano conductive ink layer, and other operations are the same as in Example 1. The thickness of the carbon nano conductive ink measured is about 4 microns, and the square resistance measured before the composite upper layer PET film step is 89Ω / □.

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Abstract

The invention discloses a low-temperature radiation electrothermal film and a preparation method thereof. The carbon nanometer conductive ink comprises the following components in mass percent: 1 to 5% of carbon nano tube, 94 to 98% of solvent, and 0.2 to 2% of surface active agent. The preparation method comprises the following steps: manufacturing a hot melt adhesive layer on a polyester film; printing a carbon nanometer conductive ink layer onto the hot melt adhesive layer; printing a generating and heating ink layer on the ink layer; manufacturing an electrode; and then hot-processing and compounding the polyester film through a hot melt adhesive film. The low-temperature electric radiant heater film has the characteristics that the peeling strength is high and the electro thermal power can be flexibly adjusted.

Description

[0001] technical field [0002] The invention relates to a low-temperature radiation electrothermal film and a preparation method thereof, belonging to electrothermal material technology. Specifically, it relates to a formula of carbon nano conductive ink, a manufacturing process and a related electrothermal film manufacturing method, and belongs to the technical field of electrothermal materials. Background technique [0003] The use of electric heating film for heating has the advantages of water saving, land saving, material saving and easy adjustment and measurement. Low-temperature radiation electrothermal film is used for residential heating. As an important way to replace water heating, it can be used for heating in rural areas in northern my country or in southern China in winter, and central heating in large northern cities that need to control pollution sources. The common electrothermal film on the market is made of conductive ink printing, metal electrode strips...

Claims

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Application Information

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IPC IPC(8): C09D11/02H05B3/20
Inventor 赵东林
Owner KMT纳米科技(香港)有限公司
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