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Method for preparing super-hydrophilic and hydrophobic composite nano array interface material

A nano-array, interface material technology, applied in nanotechnology, metal material coating process, device for coating liquid on surface, etc., can solve problems such as unfavorable unified production standards, industrial application, complex process, etc., and achieve benefits for industrialization. The effect of production, cheap and easy-to-obtain raw materials, and innovative methods

Active Publication Date: 2015-08-19
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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  • Method for preparing super-hydrophilic and hydrophobic composite nano array interface material
  • Method for preparing super-hydrophilic and hydrophobic composite nano array interface material
  • Method for preparing super-hydrophilic and hydrophobic composite nano array interface material

Examples

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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 ...

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

The invention relates to a method for preparing a super-hydrophilic and hydrophobic composite nano array interface material, which comprises the following steps: 1)taking a copper sheet as a base material, preparing a zinc oxide nano conical fascia by a chemical bath sedimentation method in hot bath; 2)using seventeen perfluorinated silane for modifying the oxidative nano conical fascia at 120 DEG C by a vapour deposition method; 3)preparing a polyvinyl alcohol low-solid content aqueous solution; 4)establishing an ultrasonic atomization and condensation platform, atomizing the polyvinyl alcohol aqueous solution with concentration being 0.1-0.2%, reducing the temperature of the surface of the copper-based zinc oxide nano conical fascia to 1-5 DEG C through the condensation platform, uniformly condensing the surface of the super-hydrophobic zinc oxide nano conical fascia by the polyvinyl alcohol dispersion liquid dispersed in air, performing spray deposition under observation of a high power CCD imaging system; and 5)rapidly transferring to a constant temperature heating stage, solidifying at constant temperature, after solvent moisture is completely volatilized, solidifying polyvinyl alcohol and absorbing on the surface of the zinc oxide nano conical fascia to form a hydrophilic and hydrophobic composite nano array interface. The method has the advantages of simple process and low cost, and the material has high anti-condensation frosting performance.

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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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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