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Preparation method of super-hydrophobic, super-oleophobic and high transparency triple-function coating film

A superhydrophobic, superoleophobic, high light transmittance technology, applied in the field of superhydrophobic superoleophobic high light transmittance triple function self-cleaning silica-based coating film and its preparation

Inactive Publication Date: 2014-08-06
JIANGNAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current literature reports mainly focus on superhydrophobic coatings, a small amount of superhydrophobic transparent coating films or superhydrophobic superoleophobic coating films, but do not solve the problem of superhydrophobic superoleophobic high light transmittance triple functional coating films. build issue

Method used

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  • Preparation method of super-hydrophobic, super-oleophobic and high transparency triple-function coating film
  • Preparation method of super-hydrophobic, super-oleophobic and high transparency triple-function coating film
  • Preparation method of super-hydrophobic, super-oleophobic and high transparency triple-function coating film

Examples

Experimental program
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Effect test

Embodiment 1

[0023] This example is the preparation of a super-hydrophobic, super-oleophobic and high-transmittance triple-functional coating film. The specific process is: use concentrated sulfuric acid (98wt%) and hydrogen peroxide (30wt%) aqueous solution to prepare a glass washing solution at a volume ratio of 3:1, soak the glass substrate in the glass washing solution for 5 minutes, and then wash it in deionized water and acetone respectively. Ultrasonic for 20 minutes, then treated with 5 mol / L sodium hydroxide aqueous solution at room temperature for 5 minutes, washed with deionized water, and dried by blowing at room temperature to obtain an activated glass substrate;

[0024] 2mL tetraethyl orthosilicate (Si(OCH 2 CH 3 ) 4 ) with 1mL dimethyldiethoxysilane ((CH 3 ) 2 Si(OCH 2 CH 3 ) 2 ) mixed, added to 25mL of absolute ethanol, stirred evenly to obtain solution A; 3mL of concentrated ammonia water (25wt%) was added to 25mL of absolute ethanol, stirred evenly to obtain solutio...

Embodiment 2

[0026] This example is the preparation of a super-hydrophobic, super-oleophobic and high-transmittance triple-functional coating film. The specific process is: use concentrated sulfuric acid (98wt%) and hydrogen peroxide (30wt%) aqueous solution to prepare a glass washing solution at a volume ratio of 3:1, soak the glass substrate in the glass washing solution for 5 minutes, and then wash it in deionized water and acetone respectively. Ultrasonic for 20 minutes, then treated with 5 mol / L sodium hydroxide aqueous solution at room temperature for 5 minutes, washed with deionized water, and dried by blowing at room temperature to obtain an activated glass substrate; 2 mL of ethyl orthosilicate (Si(OCH 2 CH 3 ) 4 ) with 1mL dimethyldiethoxysilane ((CH 3 ) 2 Si(OCH 2 CH 3 ) 2 ) mixed, added to 25mL of absolute ethanol, stirred evenly to obtain solution A; 4mL of concentrated ammonia water (25wt%) was added to 25mL of absolute ethanol, stirred evenly to obtain solution B; slow...

Embodiment 3

[0029] This example is the preparation of a super-hydrophobic, super-oleophobic and high-transmittance triple-functional coating film. The specific process is: use concentrated sulfuric acid (98wt%) and hydrogen peroxide (30wt%) aqueous solution to prepare a glass washing solution at a volume ratio of 3:1, soak the glass substrate in the glass washing solution for 5 minutes, and then wash it in deionized water and acetone respectively. Ultrasonic for 20 minutes, then treated with 5 mol / L sodium hydroxide aqueous solution at room temperature for 5 minutes, washed with deionized water, and dried by blowing at room temperature to obtain an activated glass substrate; 2 mL of ethyl orthosilicate (Si(OCH 2 CH 3 ) 4 ) with 1mL dimethyldiethoxysilane ((CH 3 ) 2 Si(OCH 2 CH 3 ) 2 ) mixed, added to 25mL of absolute ethanol, stirred evenly to obtain solution A; 5mL of concentrated ammonia water (25wt%) was added to 25mL of absolute ethanol, stirred evenly to obtain solution B; slow...

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Abstract

The invention discloses a preparation method of a super-hydrophobic, super-oleophobic and high transparency triple-function coating film, belongs to the field of novel materials, and particularly belongs to the field of self-cleaning optical materials. The method comprises the steps of firstly assembling large-grained SiO2 nano particles on a glass substrate, so as to form the lower layer of the fine structure of a functional coating layer, simultaneously adding pore-foaming agent, so as to adjust and control space filling factors, then assembling upper layer fluoride SiO2 nano fine particles, and constructing a two-stage uneven surface coating layer with a suspension structure and super-hydrophobic, super-oleophobic high and transparency functions. The functional film has frost prevention, fog prevention, pollution prevention, bacteriostasis and self-cleaning properties, also has excellent translucency, can effectively prevent properties of optical elements, photoelectron elements, solar batteries and laser systems from being influenced by environment in severe environment, greatly expands the application range of the equipment, guarantees the operational reliability, and prolongs the service life, thereby greatly improving the practical values of the equipment.

Description

technical field [0001] The invention discloses a method for preparing a super-hydrophobic, super-oleophobic and high-transmittance triple-functional coating film, which belongs to the field of new materials, in particular to the field of self-cleaning optical materials. Specifically relates to a superhydrophobic superoleophobic high light transmittance triple function self-cleaning silica-based coating film and its preparation. Background technique [0002] Superhydrophobic surfaces are common in nature, such as leaves of plants, feet of water striders, silk of spiders, wings of butterflies, watermelon rinds, moth eyes, etc. Water forms small droplets on these surfaces with contact angles exceeding 150°, and will roll off quickly if the surface is even slightly inclined. Surface pollutants such as dust can be carried away by rolling water droplets without leaving any traces. This surface self-cleaning effect is called "lotus leaf effect". Studies have shown that the superh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/00C09D1/00C09D7/12
Inventor 顾文秀杨光东刘世伟邹路易李磊王玉如卢先领陈凤凤
Owner JIANGNAN UNIV
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