Non-successional wettability modifying based bionic anti-icing surface

A wettability and anti-icing technology, applied in coatings and other directions, can solve problems such as high energy consumption and environmental pollution, and achieve the effects of delaying freezing time, reducing damage, and reducing adhesion strength characteristics

Active Publication Date: 2017-05-31
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a simple and effective bionic anti-icing surface with discontinuous we

Method used

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  • Non-successional wettability modifying based bionic anti-icing surface
  • Non-successional wettability modifying based bionic anti-icing surface
  • Non-successional wettability modifying based bionic anti-icing surface

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0025] Example one:

[0026] Such as image 3 As shown, a coating substrate is uniformly coated on the surface of the material by spraying technology, and a (titanium dioxide hydrophobic coating), b (polytetrafluoroethylene particle coating), c (ferroferric oxide nano coating), d (Silicon-containing hydrophobic coating) Four kinds of coatings with different hydrophobic characteristics are coated on the surface of the material along the longitudinal and transverse directions, so that the hydrophobic coating is distributed in a grid pattern on the surface of the material. Based on actual use requirements, the horizontal and vertical lengths of each coating on the surface of the workpiece can be adjusted, so that the surface of the material has a variety of different wetting characteristics, and the surface of the material is distributed in a "well" shape.

[0027] The surface of the workpiece is coated with hydrophobic characteristic coatings with different wetting characteristics, w...

Example Embodiment

[0028] Embodiment two:

[0029] Such as Figure 5 As shown, four kinds of a (titanium dioxide hydrophobic coating), b (polytetrafluoroethylene particle coating), c (ferroferric oxide nano coating), and d (silicon-containing hydrophobic coating) are applied to the surface of the material by spraying technology The hydrophobic coating is uniformly coated on the surface of the material, and adjacent areas need to be coated with coatings with different wetting characteristics, and the distribution is honeycomb. According to the icing problem of parts in actual working conditions, the distribution form of the hydrophobic coating can present a densely distributed honeycomb shape, so that the surface of the material per unit area has more different types of wetting. The hydrophobic coatings with different wetting characteristics can be applied to the surface of the parts. Plasma spraying technology, supersonic spraying technology, nano-spraying technology and other spraying techniques c...

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Abstract

The present invention discloses a non-successional wettability modifying based bionic anti-icing surface which is characterized in that the surface of a material are regularly coated with a plurality of dewatering coatings with different wettability with that of the material, so that the non-successional wettability distribution of the surface of the material can be obtained; in the present invention, a single wettability characteristic of the surface of the material is changed, so that the surface of the material has different dewatering performances and an active anti-icing performance, the adhesion amount of water on the surface of the material is reduced, the icing time is delayed, and the icing freezing intensity is recued; due to dewatering effects of the different dewatering layers, condensate water has different freezing icing time to form discontinuous and non-successional freezing interfaces among the dewatering layers, the freezing adhesion stability between ice and the materials is broken, and the adhesion strength of the ice on the material is reduced. In the present invention, the adhesion amount of the water on the surface of the material is reduced, the icing time is delayed, at the same time, the ability of inhibiting icing and reducing adhesion strength is achieved, and active ice preventing and removing effects are realized.

Description

technical field [0001] The invention relates to the anti-icing technology of material surface. Background technique [0002] As a common natural phenomenon, icing has brought many restrictions and hazards to engineering fields, such as aviation, transportation, electric power and other engineering fields. The icing on the surface of the aircraft affects its aerodynamic performance, especially the icing on the engine, which seriously affects the flight safety. The key components such as the chassis suspension, brake calipers, and steering wheel of the EMU freeze, which reduces the safety and comfort of the ride and shortens the service life. Fan blades, anemometers, wind vanes and other components are icy on the surface, and the wind direction and wind speed cannot be correctly judged, which seriously affects the operating efficiency of the fan, reduces the power generation efficiency of the fan, and increases the failure rate of the fan operation. At present, there are sev...

Claims

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Application Information

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IPC IPC(8): C09D5/00C09D127/18C09D1/00C09D183/04
CPCC09D1/00C09D5/00C09D127/18C09D183/04
Inventor 陈廷坤丛茜李杨孙成彬齐迎春金敬福田为军
Owner JILIN UNIV
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