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Multidirectional stretchable electric heating anti-icing and deicing material as well as preparation method and application thereof

A technology of electric heating and electric heating film, applied in the direction of heating element materials, ohmic resistance heating, ohmic resistance heating parts, etc. Effect

Active Publication Date: 2022-06-24
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Passive anti-icing technology mainly includes super-hydrophobic surface, super-slippery surface, low-adhesion anti-icing surface, etc. Passive anti-icing technology cannot achieve complete anti-icing under dynamic conditions, and its application has great limitations; active anti-icing technology is The anti-icing method is realized by applying energy to make the temperature of the icing surface reach above the freezing point. Among them, electric heating is the most direct and efficient method. At present, there are anti-icing technologies such as electric heating coating and electric heating film, but for The anti-icing of structural connectors such as steel springs and air springs of high-speed rail puts forward flexible and stretchable requirements for heating elements, and the air springs are deformed in multiple directions, and stretchable heating elements need to be adaptive to achieve multi-directional flexibility. Stretching, the existing electric heating anti-icing technology cannot well meet the application requirements in this area

Method used

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  • Multidirectional stretchable electric heating anti-icing and deicing material as well as preparation method and application thereof
  • Multidirectional stretchable electric heating anti-icing and deicing material as well as preparation method and application thereof
  • Multidirectional stretchable electric heating anti-icing and deicing material as well as preparation method and application thereof

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preparation example Construction

[0041] The present invention provides the preparation method of the multidirectional stretchable electric heating anti-icing material according to the above technical solution, comprising the following steps:

[0042] Mixing the elastic matrix, the nano conductive filler and the organic solvent to obtain the stretchable electric heating material dispersion;

[0043] Arrange parallel flexible stretchable electrodes on the substrate, apply the stretchable electric heating material dispersion on the surface of the substrate on which the flexible stretchable electrodes are arranged, and then perform curing and demolding in sequence to obtain a multidirectional stretchable electric heating material. Heat up anti-icing material.

[0044] In the invention, the elastic matrix, the nano conductive filler and the organic solvent are mixed to obtain the stretchable electric heating material dispersion. In the present invention, the mixing method is preferably as follows: adding nano-con...

Embodiment 1

[0050] A multidirectional stretchable electric heating anti-icing material, the preparation method is as follows:

[0051] The commercial spandex stretchable fiber cloth was pre-stretched for O 2 Plasma treatment, and then silver-plated on the pretreated fiber cloth by electroless plating to obtain an electroless silver-plated fiber cloth as a flexible stretchable electrode; the process of electroless plating is: (1) configure silver ammonia solution; ( 2) configure reducing solution, weigh glucose and tartaric acid into a beaker, add deionized water, then heat on an electric furnace, boil for 10min, and cool to room temperature; add absolute ethanol to the obtained solution, then add water and dilute to 1L ( Preheat to 30°C when using); (3) put O 2 The plasma-treated fiber cloth is pre-stretched and immersed in the prepared silver ammonia solution. After soaking for 30 minutes, the prepared reducing solution is added dropwise, and magnetic stirring is used; (4) the obtained ...

Embodiment 2

[0057] A multidirectional stretchable electric heating anti-icing material, the preparation method is as follows:

[0058] Firstly, the silicone rubber film is prepared by casting and demoulding, the silicone rubber film is pre-stretched and the uncured silicone rubber latex is added dropwise, and then the carbon nanotube film is attached to the side of the pre-stretched silicone base on which the silicone rubber latex is added. The surface is released after curing to obtain a carbon nanomembrane-based flexible and stretchable electrode with a micro-folded structure;

[0059] In the elastic matrix material styrene-butadiene rubber, nano conductive filler graphene and organic solvent toluene are added, followed by mechanical stirring and ultrasonic dispersion to obtain a stretchable electric heating material dispersion; the mass of the elastic matrix is ​​10% of the mass of the organic solvent, The mass of nano conductive filler is 10% of the mass of styrene-butadiene rubber; ...

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Abstract

The invention provides a multidirectional stretchable electric heating anti-icing and deicing material and a preparation method and application thereof, and relates to the technical field of functional coating materials. The multi-directional stretchable electric heating anti-icing and deicing material provided by the invention comprises a flexible stretchable electric heating film and parallel flexible stretchable electrodes arranged in the flexible stretchable electric heating film, the flexible stretchable electric heating film is obtained by curing raw materials including an elastic matrix, a nano conductive filler and an organic solvent. The electric heating anti-icing and deicing material provided by the invention can heat the electric heating film layer to be above the freezing point based on the Joule heating effect, so that the heating anti-icing and deicing effect is realized, the multi-direction stretchability of the electric heating anti-icing and deicing material can be realized, and the electric heating anti-icing and deicing material can be applied to the anti-icing and deicing field of flexible components. Furthermore, the flexible stretchable electric heating film is engraved with a paper-cut structure, so that the tensile stress of the electric heating anti-icing and deicing material and the resistance change in the tensile process can be reduced, and the multidirectional stretchability can be better realized.

Description

technical field [0001] The invention relates to the technical field of functional coating materials, in particular to a multidirectional stretchable electric heating anti-icing material and a preparation method and application thereof. Background technique [0002] During the operation of the high-speed train on the alpine line, due to the low temperature and heavy snow on the road, the high-speed rail bogie area is prone to ice and snow accumulation, which causes the train to run at a reduced speed and the empty and steel springs in the high-speed rail bogie area freeze. It will affect the safety of train operation. In order to ensure the safe operation of high-speed trains, it is necessary to develop relevant anti-icing technologies. [0003] The traditional anti-icing method used in the rail transit industry is to spray anti-icing agents. This method is not permanent and requires repeated spraying, which is costly and pollutes the environment, and cannot achieve complete...

Claims

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Application Information

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IPC IPC(8): H05B3/03H05B3/34H05B3/14E01H8/08
CPCH05B3/03H05B3/34H05B3/146H05B3/14E01H8/08
Inventor 陈华伟赵泽辉刘晓林朱彦曈王泽林澜陈济琛占潇洋马峥
Owner BEIHANG UNIV
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