Intelligent anti-icing material, and preparation method and application thereof

Abstract

The invention belongs to the technical field of composite materials, and particularly relates to an intelligent anti-icing material, and a preparation method and application thereof. The invention provides an intelligent anti-icing material. The intelligent anti-icing material comprises hydrophobic resin and nickel-titanium alloy wires embedded in the hydrophobic resin. When the ambient temperature reduces, the hydrophobic resin in the intelligent anti-icing material disclosed by the invention can shrink; the nickel-titanium alloy wires with a thermoelastic martensite phase transformation characteristic is subjected to phase transformation and is expanded; and the direction of expansion force in an ice layer is changed, so that tiny cracks are generated on the interface between the ice layer and the surface of the material, the adhesive force of the ice layer on the surface of the material is reduced, automatic falling of the ice layer is accelerated, and an excellent anti-icing usingeffect is achieved without need of heating. Experimental effects show that the intelligent anti-icing material disclosed by the invention has a good anti-icing effect; under the condition of-20 DEG C,compared with a non-intelligent anti-icing composite material, the intelligent anti-icing material provided by the invention has the advantage that the adhesion force of an ice layer on the surface is reduced by 18.2%-24.2%.

Description

technical field [0001] The invention belongs to the technical field of composite materials, and in particular relates to an intelligent anti-icing material and its preparation method and application. Background technique [0002] Icing phenomena such as precipitation icing and sublimation icing are very common in nature. In most cases, the occurrence of icing will bring great inconvenience to people's production and life, especially on vehicles and external equipment. The continuous attachment and accumulation of pollutants will cause traffic obstruction and equipment damage. Existing methods for removing icing include mechanical deicing and thermal deicing; however, mechanical deicing uses beating, which is likely to cause damage to equipment and equipment surfaces, and both mechanical deicing and thermal deicing consume a lot of energy. If the surface of the equipment or material has anti-icing properties, the de-icing work can be reduced to a certain extent. Therefore, ...

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Problems solved by technology

[0003] At present, the anti-icing means mainly use the surface structure of the equipment or material itself as a heat source to form an anti-icing system to avoid surface icing and adhesion, but this method needs to ensure the heating power to ensure that the surface temperature is maintained above freezing point , the energy consumption is very large

Or combine heating means with hydrophobic coating means (as the Chinese patent application number CN201710508043.4 discloses a kind of anti-icing film and its preparation method), but this method still needs to provide heat source, consumes energy, and this method The coating raw material matrix involved in this method is mainly epoxy resin and rubber. The resin must be molded at one time, which is inconvenient to use. Rubber is prone to aging during low temperature service and has a short service life.

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