Anti-icing and de-icing composite material with electric heating/super-hydrophobic function and preparation method of anti-icing and de-icing composite material

Abstract

The invention provides an anti-icing and de-icing composite material with an electric heating/super-hydrophobic function and a preparation method of the anti-icing and de-icing composite material. The composite material comprises a super-hydrophobic layer (1), an electric heating grid layer (2) and a base layer (3) from top to bottom in sequence; the electric heating grid layer (2) is a mesh metal template with a micropore array; the electric heating grid layer (2) is coated in the base layer (3); and the base layer (3) is formed by a polymer mixture. The invention also relates to a preparation method of the composite material. Compared with traditional single active deicing or passive anti-icing, passive anti-icing and active anti-icing are combined, ice attached to the surface of the composite material can be rapidly removed, and the problem of high energy consumption caused by single electric heating deicing is solved. The anti-icing and de-icing composite material prepared by the method is higher in anti-icing and de-icing efficiency, can be used for covering parts on the outer surfaces of various machinery equipment in various service environments, and is of great significance to the development of an efficient anti-icing and de-icing technology.

Description

technical field [0001] The invention belongs to the technical field of composite materials; in particular, it relates to an anti-icing composite material with electric heating / super-hydrophobic function and a preparation method thereof. Background technique [0002] Icing of high-altitude aircraft is a physical phenomenon that exists widely in flight practice, and is one of the main causes of flight accidents. The icing of key parts on the aircraft will lead to problems such as increased flight resistance, decreased balance, increased energy consumption, and shifted center of gravity. [0003] At present, there are two main anti-icing methods: passive anti-icing and active deicing. Passive anti-icing mainly refers to super-hydrophobic coatings, which aim to increase the wetting angle and reduce the rolling angle to improve the super-hydrophobic properties of the material surface. The supercooled water droplets can leave the surface of the aircraft in time by relying on exte...

AI Technical Summary

Problems solved by technology

The Chinese patent application with the application number 201810401741.9 discloses "composite materials with electric heating deicing layer and its preparation method". The graphene paper is used as the electric heating element, which has good electric heating deicing performance, but the surface of the graphene paper has no active carbon atoms Or groups, there are still defects in the bonding of composite materials; and there are many uniform through holes on the graphene paper, although it can promote the interface mechanical interlocking to a certain extent, but it will also reduce the graphene paper. Electrical and thermal conductivity, affecting the electrothermal properties of materials

[0005] Superhydrophobic coatings are usually used as the outer layer of composite materials, such as patent CN105504324A, a resin-based composite material with a superhydrophobic bionic surface and its preparation method, which has demonstrated its excellent superhydrophobic performance. Good composite materials are cleaned and polished, followed by procedures such as laser processing of microstructures and spraying of hydrophobic coatings, which have the disadvantages of cumbersome steps, high cost, and unstable microstructure strength

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