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Flexible heating film assembly and preparing method thereof

A heating film and flexible technology, applied in the field of flexible heating film components and their preparation, can solve the problems of silicon carbide components burning, cannot be washed, poor room temperature toughness, etc., achieve good elastic modulus and bending strength, and ensure washing resistance. , the effect of uniform pore size distribution

Active Publication Date: 2015-12-30
J NOVA WORKS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, non-metallic electric heating materials also have many disadvantages. For example, the use of silicon carbide materials in high-temperature oxidizing atmospheres may easily cause silicon carbide components to be burned due to strong oxidation, which restricts their wide application in higher temperature fields; molybdenum disilicide It has the dual properties of metal and ceramics, but the disadvantages of poor room temperature toughness and low high temperature strength also limit its development and application
[0006] The above-mentioned heating materials are hard and heavy, and cannot meet most needs. For example, they cannot give people a comfortable experience when applied to clothing, home textiles, and home furnishing. At the same time, most of the heating materials are not resistant to washing, usually It cannot be washed or can only be washed partially, which also brings limitations to the application of heating materials

Method used

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  • Flexible heating film assembly and preparing method thereof
  • Flexible heating film assembly and preparing method thereof
  • Flexible heating film assembly and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Cut out a flexible heating membrane module with a size of 10*10cm, according to Figure 4 The structures shown are composited, from top to bottom are polytetrafluoroethylene porous membrane (5 μm), carbon nanotube membrane with circuit system (5 μm), and polytetrafluoroethylene porous membrane (5 μm). A 40°C temperature sensor is connected in series in the circuit, but the heating will be stopped when the temperature exceeds 40°C, and the heating will be started when the temperature is lower than 40°C. Power on the circuit through a USB external power bank, and use a temperature measuring gun to measure the temperature of different points on the film. The test position is as follows: Figure 8 As shown, the measurement results are shown in Table 1.

Embodiment 2

[0053] Cut out a flexible heating membrane module with a size of 10*10cm, according to Figure 5 The structures shown are composited, from top to bottom are polytetrafluoroethylene porous membrane (5 μm), carbon nanotube membrane with circuit system (5 μm), and polytetrafluoroethylene porous membrane (5 μm). A 40°C temperature sensor is connected in series in the circuit, but the heating will be stopped when the temperature exceeds 40°C, and the heating will be started when the temperature is lower than 40°C. Power on the circuit through a USB external power bank, and use a temperature measuring gun to measure the temperature of different points on the film. The test position is as follows: Figure 8 As shown, the measurement results are shown in Table 1.

Embodiment 3

[0055] Cut out a flexible heating membrane module with a size of 30*30cm, according to Figure 4 The structures shown are composited, from top to bottom are polytetrafluoroethylene porous membrane (5 μm), carbon nanotube membrane with circuit system (5 μm), and polytetrafluoroethylene porous membrane (5 μm). A 40°C temperature sensor is connected in series in the circuit, but the heating will be stopped when the temperature exceeds 40°C, and the heating will be started when the temperature is lower than 40°C. The circuit is energized in the form of external direct current through the wire, the output voltage is controlled at 5V, and the temperature of different points on the film is measured with a temperature measuring gun. The test position is as follows: Figure 8 As shown, the measurement results are shown in Table 1.

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Abstract

The invention discloses a flexible heating film assembly and a preparing method thereof. The flexible heating film assembly comprises a flexible heating layer. The flexible heating layer is formed by connecting five to one thousand heating film layers in a stacked mode. Loose and porous structures are formed between every two layers. A circuit system is connected to the flexible heating layer. At least one of the upper side and the lower side of the flexible heating layer is provided with a protecting layer. The multiple heating film layers of the flexible heating layer are connected in a stacked mode, the loose and porous structures are formed between every two layers, and by means of unique nanometer holes, the large long-diameter ratio and the large specific area, the flexible heating layer has large elasticity modulus and high bending strength, macroscopic flexibility and hand feeling comfort of the flexible heating film assembly are ensured; in addition, the flexible heating film assembly has ultra-thin thickness and high flexibility, is easy to process and form and resistant to detergent, and is an excellent insulating and heat preserving material.

Description

technical field [0001] The invention belongs to the technical field of heating materials, and in particular relates to a flexible heating film component and a preparation method thereof. Background technique [0002] With the improvement of living standards, people need special heat sources in more and more places, such as: hot compresses in medical treatment, heating of meals when going out, warming hands and feet when it is cold, car seat cushions, etc. At present, heating materials on the market are generally divided into chemical heating and electric heating. The common substances of chemical heating are quicklime, hot ice (sodium acetate solution), iron powder, etc., and the chemical reactions of these substances generate heat. However, these substances are all chemicals, and they react violently, are not easy to control, and the temperature is also unstable, which is easy to cause harm to the human body, and the safety situation is worrying. [0003] The main materia...

Claims

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Application Information

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IPC IPC(8): H05B3/36H05B3/10
Inventor 王英杰葛英黄哲军
Owner J NOVA WORKS CO LTD
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