Adhesive self-resistance heating/super-hydrophobic integrated gradient thin film material

Abstract

The invention discloses an adhesive self-resistance heating / super-hydrophobic integrated gradient thin film material. The thin film material is made of adhesive resin, insulating resin, thermally andelectrically conductive filler and thermally conductive and insulating filler, wherein the adhesive resin and the insulating resin separately form a bonding layer and a substrate which are bonded together; and the thermally and electrically conductive filler and the thermally conductive and insulating filler are added to a middle layer and an upper layer of the substrate correspondingly to dividethe substrate into three gradient regions from top to bottom, wherein the surface of the uppermost region is constructed with a super-hydrophobic structure. The adhesive self-resistance heating / super-hydrophobic integrated gradient thin film material has the beneficial effects that (1) only the insulating resin is used in a main part, the functionalization of different regions is realized while ensuring that the interface influence between layers of different materials does not exist in a structure, mechanical properties are significantly improved, and stratification is not prone to occurring;and (2) anti-icing and de-icing are integrated into one, the icing time can be effectively delayed, low-energy electric heating de-icing can be achieved, and the energy utilization efficiency of aircrafts can be ultimately improved.

Description

technical field [0001] The invention relates to a thin film material, in particular to an adhesive self-resistance heating / super-hydrophobic integrated gradient thin film material, which belongs to the technical field of aerospace anti-icing. Background technique [0002] The icing phenomenon of the aircraft in the high-altitude supercooled environment will increase the flight resistance, reduce the stability of the aircraft, and cause serious flight problems. Therefore, the anti-icing system equipped on the aircraft is an important measure to ensure the safe flight of the aircraft, and it is indispensable on the aircraft. missing important part. The most widely used deicing system on the aircraft is the electric heating deicing system. The traditional electric heating deicing system usually uses metal materials as the electric heating elements of the deicing system, and several heating elements are symmetrically arranged on the leading edge of the slat that needs to be prot...

AI Technical Summary

Problems solved by technology

[0003] 1. The electric heating elements are distributed inside the aircraft skin, and each electric heating element is controlled by a complex electronic controller and cumbersome logic program, and the installation and maintenance costs are extremely high;

[0004] 2. The electric heating element is mainly made of metal conductive and heat-conducting materials, which greatly increases the weight of the aircraft, increases the fuel consumption of the aircraft, and increases the flight cost

It can be seen that the new skin simply couples the electric heating layer and the super-hydrophobic structure, and bonding each layer through an adhesive belongs to the design method in the field of laminate technology. The residual stress in the laminate and the heat generated when the electric heating layer is energized Stress will significantly weaken the interface adhesion, affect the life of the skin, and eventually the skin will delaminate

In addition, the super-hydrophobic layer of the new skin is made of polyimide with low thermal conductivity, and the back glue is a thermally conductive and insulating adhesive, so the heat generated by the electric heating layer cannot be directed to the new skin. surface

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