A method for preparing super-hydrophobic composite nano-array interface material

A technology of nano-arrays and interface materials, which is applied in the direction of nano-technology, metal material coating technology, and devices for coating liquid on the surface. The effect of gaining, benefiting industrialized production and method innovation

Active Publication Date: 2017-08-25
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] These methods for preparing super-hydrophobic materials are complicated in process and involve a variety of technical means, which is not conducive to uniform production standards and industrial applications. They can only provide theoretical basis, and there are still many limitations in the future application field.

Method used

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  • A method for preparing super-hydrophobic composite nano-array interface material
  • A method for preparing super-hydrophobic composite nano-array interface material
  • A method for preparing super-hydrophobic composite nano-array interface material

Examples

Experimental program
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Effect test

Embodiment 1

[0025] A method for preparing a super-hydrophobic composite nano-array interface material, comprising the following steps:

[0026] 1) Cut a 4cm×4cm copper sheet as the base material, and polish the copper sheet with 800 mesh, 1500 mesh, and 3000 mesh in turn to make the surface rough. Sonicate in acetone, absolute ethanol, and ultrapure aqueous solution for 5 minutes respectively, take out the nitrogen gas and blow dry, and then place it in a 60°C oven for oxidation for 1 hour to seed the copper-based surface;

[0027] 2) Configure chemical bath solution, select c(Zn 2+ ) : c(OH + ) = molar ratio of 1:8, Zn 2+ is derived from zinc nitrate hexahydrate [Zn(NO 3 ) 2 6H 2 O], OH + The source of NaOH is sodium hydroxide, respectively measure 25mL of the solution in a 40mm×70mL weighing bottle, mix and stir until clear to form a chemical bath solution. Suspend the copper sheet in the chemical bath solution in reverse, and prepare the zinc oxide nanocone film by chemical bath...

Embodiment 2

[0032] A method for preparing a super-hydrophobic composite nano-array interface material, comprising the following steps:

[0033] 1) Cut a 4cm×4cm copper sheet as the base material, polish the copper sheet with 800 mesh, 1500 mesh, and 3000 mesh in turn to make the surface rough, and then ultrasonically in acetone, absolute ethanol, and ultrapure aqueous solution for 5 minutes to remove nitrogen After drying, place it in an oven at 60°C for 2 hours to oxidize to seed the copper-based surface;

[0034] 2) Configure chemical bath solution, select c(Zn 2+ ) : c(OH + ) = molar ratio of 1:8, Zn 2+ is derived from zinc nitrate hexahydrate [Zn(NO 3 ) 2 6H 2 O], OH + The source of sodium hydroxide (NaOH), respectively measure 25mL solution in a 40mm × 70mL weighing bottle, mix and stir until clear to form a chemical bath solution, hang the copper piece in the chemical bath solution in reverse, heat at 60 ° C Zinc oxide nanocone film was prepared by chemical bath deposition at c...

Embodiment 3

[0039] A method for preparing a super-hydrophobic composite nano-array interface material, comprising the following steps:

[0040] 1) Cut a 4cm×4cm copper sheet as the base material, polish the copper sheet with 800 mesh, 1500 mesh, and 3000 mesh in turn to make the surface rough, and ultrasonically in acetone, absolute ethanol, and ultrapure aqueous solution for 5 minutes respectively, and take out nitrogen After drying, place it in an oven at 60°C for 2 hours to oxidize to seed the copper-based surface;

[0041] 2) Configure chemical bath solution, select c(Zn 2+ ) : c(OH + ) = molar ratio of 1:8, Zn 2+ is derived from zinc nitrate hexahydrate [Zn(NO 3 ) 2 6H 2 O], OH + The source of sodium hydroxide (NaOH), respectively measure 25mL solution in a 40mm × 70mL weighing bottle, mix and stir until clear to form a chemical bath solution, hang the copper piece in the chemical bath solution in reverse, heat at 60 ° C Zinc oxide nanocone film was prepared by chemical bath d...

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Abstract

A method for preparing a super-hydrophobic composite nano-array interface material, the preparation steps are: 1) using a copper sheet as a base material to prepare a zinc oxide nanocone film by chemical bath deposition in a hot water bath; 2) using a vapor phase deposition method on Use seventeen perfluorosilane to super-modify the oxidized nano-cone membrane at 120°C; 3) configure polyvinyl alcohol low-solid content aqueous solution; The aqueous solution is atomized through the condensation platform to reduce the surface temperature of the copper-based zinc oxide nano-cone film to 1°C to 5°C, so that the polyvinyl alcohol dispersion liquid dispersed in the air can condense the surface of the super-hydrophobic zinc oxide nano-cone film evenly, at high magnification Atomized deposition under the observation of the CCD imaging system; 5) Quickly transfer to a constant temperature hot stage, and cure at a constant temperature. After the solvent moisture is completely volatilized, the polyvinyl alcohol is cured and adsorbed and adhered to the surface of the zinc oxide nanocone to form a hydrophilic-hydrophobic composite nano-array interface; The process is simple, the cost is low, and the resistance to condensation and frosting is high.

Description

technical field [0001] The invention belongs to the field of preparation of functional super-hydrophobic nano-array interface materials, in particular to a method for preparing super-hydrophobic composite nano-array interface materials. Background technique [0002] A superhydrophobic surface generally refers to a surface whose contact angle between a solid and water is greater than 150°, and it is difficult for water droplets to stay on this surface. It is effectively contained and brings convenience to life and industrial and agricultural production. Superhydrophobic materials have a very wide range of functional applications in daily life. At present, they have been used in car windshields, syringe needles, daily necessities packaging, steam condensation systems, inner walls of oil pipelines, ship shells, fuel storage tanks, satellite antennas, etc. Successful application of materials with superhydrophobic properties. The natural superhydrophobic interfaces in nature, s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C28/00C23C18/00B05D5/08B05D3/02B82Y40/00
Inventor 王海军李金祥王学川
Owner SHAANXI UNIV OF SCI & TECH
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