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A method to realize the controllable inversion of superhydrophilic and superhydrophobic glass surfaces

A glass surface, super-hydrophobic technology, applied in the direction of coating, etc., can solve the problems of unstable performance, limit the engineering application of materials, change the affinity and hydrophobicity, etc., achieve good results, overcome the irreversibility of super-hydrophilic and super-hydrophobic control and stable performance

Active Publication Date: 2019-06-04
AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method of changing the affinity and hydrophobicity by high-energy beam irradiation is reversible, making its performance less stable and limiting the engineering application of materials

Method used

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  • A method to realize the controllable inversion of superhydrophilic and superhydrophobic glass surfaces
  • A method to realize the controllable inversion of superhydrophilic and superhydrophobic glass surfaces
  • A method to realize the controllable inversion of superhydrophilic and superhydrophobic glass surfaces

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] 1. Realize the superhydrophilicity of the glass surface:

[0036] 1.1. Prepare hydrochloric acid solution: mix 24ml of deionized water and 24ml of 30% hydrochloric acid in a beaker. The mixture was stirred in air for 1 min;

[0037] 1.2. Prepare a mixed solution of tetrabutyl titanate and hydrochloric acid: add 1.5ml tetrabutyl titanate to the hydrochloric acid solution, stir for 5 minutes, and put the obtained mixed solution of tetrabutyl titanate and hydrochloric acid into a stainless steel autoclave;

[0038] 1.3. Glass cleaning: Put the glass into an ultrasonic cleaner with cleaning solution for 30 minutes, take it out, rinse it with distilled water for 1 minute, and then dry it; the cleaning solution is a mixed solution of distilled water: acetone: isobutanol = 1:1:1 ;

[0039] 1.4. Preparation of super-hydrophilic surface: Put the glass into a stainless steel autoclave, immerse in the mixed solution of tetrabutyl titanate and hydrochloric acid, react the autocla...

Embodiment 2

[0047] 1. Realize the superhydrophilicity of the glass surface:

[0048] 1.1. Preparation of hydrochloric acid solution: Mix 50ml of deionized water and 50ml of 30% hydrochloric acid in a beaker. The mixture was stirred in air for 5 min;

[0049] 1.2. Prepare a mixed solution of tetrabutyl titanate and hydrochloric acid: add 1.0ml tetrabutyl titanate to the hydrochloric acid solution, stir for 15 minutes, and put the obtained mixed solution of tetrabutyl titanate and hydrochloric acid into a stainless steel autoclave;

[0050] 1.3. Glass cleaning: Put the glass in an ultrasonic cleaner with cleaning solution for 60 minutes, take it out, rinse it with distilled water for 2 minutes, and then dry it; the cleaning solution is a mixed solution of distilled water: acetone: isobutanol = 1:1:1 ;

[0051] 1.4. Preparation of super-hydrophilic surface: Put the glass into a stainless steel autoclave, immerse in a mixed solution of tetrabutyl titanate and hydrochloric acid, react the au...

Embodiment 3

[0057] 1. Realize the superhydrophilicity of the glass surface:

[0058] 1.1. Preparation of hydrochloric acid solution: Mix 12ml of deionized water and 12ml of 30% concentrated hydrochloric acid in a beaker. The mixture was stirred in air for 3 min;

[0059] 1.2. Prepare a mixed solution of tetrabutyl titanate and hydrochloric acid: add 0.48ml tetrabutyl titanate to the hydrochloric acid solution, stir for 25 minutes, and put the obtained mixed solution of tetrabutyl titanate and hydrochloric acid into a stainless steel autoclave;

[0060] 1.3. Glass cleaning: Put the glass into an ultrasonic cleaner with cleaning solution for 40 minutes, take it out, rinse it with distilled water for 3 minutes, and then dry it; the cleaning solution is a mixed solution of distilled water: acetone: isobutanol = 1:1:1 ;

[0061] 1.4. Preparation of super-hydrophilic surface: Put the glass into a stainless steel autoclave, immerse in the mixed solution of tetrabutyl titanate and hydrochloric ...

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Abstract

The invention belongs to the technical field of surface treatment, and relates to a method for achieving controlled super-hydrophilic and super-hydrophobic inversion of a glass surface. The method is characterized in that controlled super-hydrophilic and super-hydrophobic inversion of the glass surface is achieved through growing different nano layers on the glass surface. According to the method for achieving controlled super-hydrophilic and super-hydrophobic inversion of the glass surface, controlled super-hydrophilic and super-hydrophobic inversion can be achieved through regulating and controlling a microstructure change of the material surface, and the defects of uncontrollable super-hydrophilic and super-hydrophobic inversion and unstable performance under light irradiation in the prior art are overcome.

Description

technical field [0001] The invention belongs to the technical field of surface treatment, and relates to a method for realizing controllable inversion of superhydrophilicity and superhydrophobicity on the glass surface. Background technique [0002] Wettability is an important characteristic of solid surfaces. Studies have shown that wettability is determined by its chemical composition and microscopic geometry (T.Onda, S.Shibuichi, N.Satoh, K.Tsujii, Langmuir1996, 12, 2125-2127; N. Satoh, K. Tsujii, J. Phys. Chem. 1996, 100, 19512-19517. W. Chen, A.Y. Fadeev, M. C. Hsieh, et al. Langmuir, 1999, 15, 3395-3399.). Superhydrophilicity and superhydrophobicity are the main manifestations of surface wettability. In general, when the contact angle between the liquid on the interface and the interface is about 150 degrees, it is superhydrophobic. When the contact angle between the liquid on the interface surface and the interface is 10° It is superhydrophilic when the degree is be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C17/34C03B25/00
CPCC03B25/00C03C17/3429C03C2217/212C03C2217/28C03C2217/75C03C2217/76C03C2218/111C03C2218/156
Inventor 罗炳威刘大博罗飞田野祁洪飞
Owner AVIC BEIJING INST OF AERONAUTICAL MATERIALS