A superhydrophobic anti-icing coating for active photothermal deicing, coating and its preparation and application

Abstract

The invention belongs to the technical field of material surface ice removal, and discloses a super-hydrophobic icing prevention coating with an active photothermal deicing function, a coating layer,a preparation method of the coating and an application of the coating. The coating mainly comprises silicon carbide micro-powder, carbon nano tubes, adhesives, hydrophobic agents and solvents, the weight ratio of the silicon carbide micro-powder to the carbon nano tubes is (0.5-20):1, the weight ratio of the adhesives to the carbon nano tubes is (40-100):1, the weight ratio of the hydrophobic agents to the carbon nano tubes is (4-10):1, the adhesives are provided with silane coupling agents, and the hydrophobic agents are provided with long-fluorine carbon chain silane coupling agents. The coating layer is prepared from the coating. The coating is applied to material surface icing prevention. The coated layer prepared from the icing prevention coating prolongs icing time of super-cooled liquid droplets, ice adhesion of the surface is reduced, rapid heating is achieved under irradiation of near-infrared light, rapid photothermal deicing is achieved, active photothermal deicing and passive icing prevention of the coating layer are combined, and rapid remote deicing is facilitated.

Description

technical field [0001] The invention relates to the technical field of material surface engineering, in particular to a superhydrophobic anti-icing coating for active photothermal deicing, a coating, a preparation method and application thereof. Background technique [0002] The formation and accumulation of ice can easily cause fatal damage to equipment, such as wires and cables, aircraft engines, wind turbines, etc. In 2008, the southern ice disaster caused by the cold wave brought more than 150 billion losses to the country. In some areas, electric wires, cables and telephone lines were crushed due to heavy loads due to freezing, and several kilometers or even tens of kilometers of utility poles fell in rows. , causing interruption of power transmission and communication, seriously affecting local industrial and agricultural production. The traditional deicing methods are mainly energy-intensive active deicing methods, such as electric heating and mechanical deicing. Now...

AI Technical Summary

Problems solved by technology

In 2008, the southern ice disaster caused by the cold wave brought more than 150 billion losses to the country. In some areas, electric wires, cables and telephone lines were crushed due to heavy loads due to freezing, and several kilometers or even tens of kilometers of utility poles fell in rows. , resulting in interruption of power transmission and communication, seriously affecting local industrial and agricultural production

[0003] Superhydrophobic anti-icing coatings with rough structures are considered ideal anti-icing materials due to their high contact angles and low contact hysteresis to water, but the mechanical durability of superhydrophobic during icing / deicing processes Deterioration, rough structure is damaged

Superhydrophobic anti-icing materials still need to be improved

Moreover, the existing anti-icing materials have disadvantages such as complex preparation process, single function, and difficulty in large-scale application.

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