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Preparation method of smooth porous surface of glass

A porous surface and glass surface technology, applied in the direction of coating, etc., can solve the problems of high cost and difficult operation of single-layer polystyrene microspheres, and achieve the effect of low cost, excellent liquid repellency and good self-cleaning effect

Inactive Publication Date: 2017-11-03
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method can obtain SLIPS with all-round lyophobic properties in a large area, and can be cut into shapes according to requirements and attached to the glass substrate. However, the operation of making single-layer polystyrene microspheres is difficult and the cost is too high.

Method used

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  • Preparation method of smooth porous surface of glass
  • Preparation method of smooth porous surface of glass
  • Preparation method of smooth porous surface of glass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1: a kind of preparation method of smooth porous surface of glass, concrete steps are:

[0022] (1) Pre-treatment: use 99% acetone and distilled water to clean the glass ultrasonically in order to remove dust and oil on the glass surface;

[0023] (2) Pretreatment: at a temperature of 80°C, place the pretreated glass in step (1) in a sodium hydroxide solution for 3 hours and take it out, then rinse it with distilled water, and dry it; the concentration of sodium hydroxide is 0.2mol / L; Sodium hydroxide solution etches a layer to multi-layer micro-nano structure on the glass surface;

[0024] (3) Surface modification: Soak the glass pretreated in step (2) in 1H,1H,2H,2H-perfluorodecyltriethoxysilane for 6 hours, take it out, and dry it;

[0025] (4) Pouring coating: Place the surface-modified glass in step (3) in a homogenizer, pour and coat the glass surface with a lubricating liquid (the lubricating liquid is perfluoropolyether lubricating oil) to obtain a ...

Embodiment 2

[0028] Embodiment 2: a kind of preparation method of smooth porous surface of glass, concrete steps are:

[0029] (1) Pre-treatment: use 99% acetone and distilled water to clean the glass ultrasonically in order to remove dust and oil on the glass surface;

[0030] (2) Pretreatment: At a temperature of 70°C, place the pretreated glass in step (1) in a sodium hydroxide solution for 9 hours and take it out, then rinse it with distilled water, and dry it; the concentration of sodium hydroxide is 0.15mol / L;

[0031] (3) Surface modification: Soak the glass pretreated in step (2) in 1H,1H,2H,2H-perfluorodecyltriethoxysilane for 7 hours, take it out, and dry it;

[0032] (4) Pouring coating: Place the surface-modified glass in step (3) in a homogenizer, pour and coat the glass surface with a lubricating liquid (the lubricating liquid is perfluoropolyether lubricating oil) to obtain a smooth porous surface of the glass, wherein The spin coating speed is 5000r / min;

[0033] The op...

Embodiment 3

[0034] Embodiment 3: a kind of preparation method of smooth porous surface of glass, concrete steps are:

[0035] (1) Pre-treatment: use 99% acetone and distilled water to clean the glass ultrasonically in order to remove dust and oil on the glass surface;

[0036] (2) Pretreatment: at a temperature of 60°C, place the pretreated glass in step (1) in a sodium hydroxide solution for 15 hours and take it out, then rinse it with distilled water, and dry it; the concentration of sodium hydroxide is 0.1mol / L;

[0037] (3) Surface modification: Soak the glass pretreated in step (2) in 1H,1H,2H,2H-perfluorodecyltriethoxysilane for 8 hours, take it out, and dry it;

[0038] (4) Pouring coating: Place the surface-modified glass in step (3) in a homogenizer, pour and coat the glass surface with a lubricating liquid (the lubricating liquid is perfluoropolyether lubricating oil) to obtain a smooth porous surface of the glass, wherein The spin coating speed is 6000r / min;

[0039] The op...

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Abstract

The invention relates to a preparation method of a smooth porous surface of glass, and belongs to the technical field of surface processing. A sodium hydroxide solution is used to hydrothermally etch a micro-nano structure of a glass structure, lubricating oil is spin-coated after fluorination modification, the obtained surface has an excellent lyophobic characteristic, and the self-cleaning effect is good. The method is simple in process and low in cost.

Description

technical field [0001] The invention relates to a method for preparing a smooth porous surface of glass, belonging to the technical field of surface processing. Background technique [0002] Glass is widely used in various fields of life, production and scientific research. In daily use, glass will be corroded or mildewed due to long-term exposure to the sun and rain or microbial adhesion, so it is necessary to improve the corrosion resistance of the glass panel to prolong its service life. The researchers obtained a superhydrophobic surface by imitating the lotus leaf effect. The microstructure of this surface can form a stable air-liquid interface layer, making it easy for water droplets to roll off, thus having a good effect on preventing corrosion and weathering of glass. However, superhydrophobic surfaces have disadvantages such as easy adsorption of bacteria, poor pressure stability, and poor physical wear resistance. So the researchers imitated the Nepenthes effect,...

Claims

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Application Information

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IPC IPC(8): C03C17/34C03C15/00C03C23/00
CPCC03C15/00C03C17/3405C03C23/0075C03C2217/76C03C2218/11
Inventor 朱艳贺胤沈韬
Owner KUNMING UNIV OF SCI & TECH
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