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Inorganic superhydrophobic anti-icing structure with multistage pore structure and preparation method and application thereof

A super-hydrophobic, ice-structured technology, applied in nanotechnology for materials and surface science, metal material coating technology, nanotechnology, etc., can solve the problems of low surface modification, pollute the environment, affect the surface of materials, etc., and achieve excellent Effect of anti-icing properties, good non-wetting and water repellency

Active Publication Date: 2020-08-28
TIANJIN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the surfaces of existing superhydrophobic anti-icing materials are surface-modified, and the surface is modified with organic substances with low surface energy (for example: heptadecafluorodecyltripropoxysilane (FAS-17), stearic acid, etc.) , these organic substances are easy to decompose at high temperature, causing environmental pollution and affecting the stability of superhydrophobicity and ice resistance on the surface of the material

Method used

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  • Inorganic superhydrophobic anti-icing structure with multistage pore structure and preparation method and application thereof
  • Inorganic superhydrophobic anti-icing structure with multistage pore structure and preparation method and application thereof
  • Inorganic superhydrophobic anti-icing structure with multistage pore structure and preparation method and application thereof

Examples

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Effect test

Embodiment 1

[0062] A method for preparing an inorganic superhydrophobic anti-icing structure with a hierarchical porous structure, comprising the following steps:

[0063] 1) Prepare the three-dimensional porous metal, the three-dimensional porous metal is nickel foam, and pretreat the three-dimensional porous metal: at room temperature 20-25°C, put the three-dimensional porous metal into hydrochloric acid (Sinopharm, AR), ethanol and The oxygen-dissolved deionized water was sonicated for 20 minutes each, wherein the concentration of hydrochloric acid was 3 mol / L, and the temperatures of the hydrochloric acid, ethanol and deionized water were respectively 50°C during sonication (realized by a water bath). The role of foam nickel (surface) pretreatment is: the hydrochloric acid of dissolved oxygen causes the original inert nickel oxide on the surface of foam nickel to be washed away, and the exposed highly active nickel is rapidly oxidized to form nickel oxide, and then soaked in deionized ...

Embodiment 2

[0069] A method for preparing an inorganic superhydrophobic anti-icing structure with a hierarchical porous structure, comprising the following steps:

[0070] 1) Pretreatment of the three-dimensional porous metal: at a room temperature of 20-25°C, put the three-dimensional porous metal into hydrochloric acid with dissolved oxygen (Sinopharm, AR), ethanol, and deionized water with dissolved oxygen for 20 minutes respectively, among which, The concentration of hydrochloric acid is 2 mol / L, and the temperatures of hydrochloric acid, ethanol and deionization are respectively 60° C. (realized by water bath) during ultrasonication.

[0071] Clean the three-dimensional porous metal after pretreatment: soak the three-dimensional porous metal in deionized water with dissolved oxygen for 8 hours.

[0072] After cleaning, dry at 60°C for 2 hours in a drying oven (Boxun, DZF-6020) with a vacuum degree of 0.08MPa, wherein the three-dimensional porous metal is nickel foam;

[0073] 2) Imm...

Embodiment 3

[0076] A method for preparing an inorganic superhydrophobic anti-icing structure with a hierarchical porous structure, comprising the following steps:

[0077] 1) Pretreatment of the three-dimensional porous metal: at a room temperature of 20-25°C, put the three-dimensional porous metal into hydrochloric acid with dissolved oxygen (Sinopharm, AR), ethanol, and deionized water with dissolved oxygen for 20 minutes respectively, among which, The concentration of hydrochloric acid is 1 mol / L, and the temperatures of hydrochloric acid, ethanol and deionization are respectively 40° C. (realized by water bath) during ultrasonication.

[0078] Clean the three-dimensional porous metal after pretreatment: soak the three-dimensional porous metal in deionized water with dissolved oxygen for 10 hours.

[0079] After cleaning, dry at 60°C for 2 hours in a drying oven (Boxun, DZF-6020) with a vacuum degree of 0.08MPa, wherein the three-dimensional porous metal is nickel foam;

[0080] 2) Im...

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Abstract

The invention discloses an inorganic superhydrophobic anti-icing structure with a multistage pore structure and a preparation method and application thereof. The preparation method comprises the stepsthat: three-dimensional porous metal is pretreated, cleaned and dried; the three-dimensional porous metal is immersed in a growth solution at 80-120 DEG C for 5-10 hours, and then is washed many times and is dried; after being dried, the three-dimensional porous metal is insulated at 250-450 DEG C for 1-5 hours, and then is cooled to room temperature; then the three-dimensional porous metal is placed at a vacuum degree of 0.06-0.09 MPa and is insulated at 120-180 DEG C for 6-12 hours; and then the three-dimensional porous metal is placed in an air environment to obtain the inorganic superhydrophobic anti-icing structure. The inorganic superhydrophobic anti-icing structure not only exhibits good non-wetting and water resistance, but also has excellent anti-icing performance. The inorganicsuperhydrophobic anti-icing structure can effectively prevent the formation and growth of ice at low temperatures.

Description

technical field [0001] The invention belongs to the technical field of super-hydrophobic anti-icing materials, and specifically relates to an inorganic super-hydrophobic anti-icing structure with a hierarchical pore structure and a preparation method and application thereof. Background technique [0002] Over the years, ice disasters have seriously affected people's lives. For example: power grid paralysis, icy vehicles, icy roads, icy daily necessities, etc. have brought great inconvenience to human beings. Moreover, icing behavior has great harm to the country's power system, aerospace, wind power generation, logistics and communication engineering. [0003] Since the 1990s, a large number of researchers have invested in anti-icing research, and anti-icing research is still a big challenge. Researchers have found that super-hydrophobic materials have a self-cleaning effect. When water droplets fall on a solid surface, they will roll away immediately and will not accumula...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C26/00B82Y30/00B82Y40/00
CPCC23C26/00B82Y30/00B82Y40/00Y02E10/72
Inventor 袁志好王文彬齐高璨
Owner TIANJIN UNIVERSITY OF TECHNOLOGY
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