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Novel preparation method of superhydrophobic glass

A superhydrophobic and glass technology, which is applied in the field of superhydrophobic glass preparation, can solve the problems of limited superhydrophobic glass, and achieve the effects of stable superhydrophobic properties, good industrial application prospects, and simple operation process

Inactive Publication Date: 2012-10-10
袁志庆 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, so far, the literature reports on the preparation of superhydrophobic glass at home and abroad are still very limited.

Method used

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  • Novel preparation method of superhydrophobic glass
  • Novel preparation method of superhydrophobic glass
  • Novel preparation method of superhydrophobic glass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) First, alternately clean the glass surface 3 times with absolute ethanol and acetone, each cleaning time is 5 minutes; then the glass is placed in a mixed solution of 30% hydrogen peroxide and concentrated sulfuric acid (the volume of hydrogen peroxide and concentrated sulfuric acid is 30:70) for 5 minutes, then washed 3 times with deionized water, and then dried in a nitrogen environment for 2 hours;

[0030] (2) Add 10nm, 20nm, 50nm, 80nm, 100nm, 150nm nano silicon dioxide to 1000mL absolute ethanol with a weight ratio of 10:10:20:20:20:20 and stir for 30 minutes to form a concentration of 1wt % nano silicon dioxide solution;

[0031] (3) Immerse the cleaned glass in the nano-silica solution for 20 minutes, then pull it out from the nano-silica solution at a speed of 5 cm / min, and dry it at 400° C. for 5 hours;

[0032] (4) Repeat step (3) 3 times;

[0033] (5) Place the glass impregnated with nano-silica in the ethanol solution of 1wt% heptadecafluorotrimethoxy...

Embodiment 2

[0035] (1) First, alternately clean the glass surface 5 times with absolute ethanol and acetone, and each cleaning time is 10 minutes; then the glass is placed in a mixed solution of 30% hydrogen peroxide and concentrated sulfuric acid (the volume of hydrogen peroxide and concentrated sulfuric acid is 30:70) for 5 minutes, then washed 3 times with deionized water, and then dried in a nitrogen environment for 2 hours;

[0036] (2) Add 10nm, 20nm, 50nm, 80nm, 100nm, 150nm nano-silica to 1000mL absolute ethanol with a weight ratio of 25:15:10:20:20:10 and stir for 30 minutes to form a concentration of 1wt % nano silicon dioxide solution;

[0037] (3) Immerse the cleaned glass in the nano-silica solution for 30 minutes, then pull it out from the nano-silica solution at a speed of 1 cm / min, and dry it at 400° C. for 8 hours;

[0038] (4) Repeat step (3) 3 times;

[0039] (5) Place the glass impregnated with nano-silica in the ethanol solution of 1wt% heptadecafluorotrimethoxyetho...

Embodiment 3

[0041] (1) First, alternately clean the glass surface with absolute ethanol and acetone for 4 times, each cleaning time is 8 minutes; then the glass is placed in a mixed solution of 30% hydrogen peroxide and concentrated sulfuric acid (the volume of hydrogen peroxide and concentrated sulfuric acid is 30:70) for 5 minutes, then washed 3 times with deionized water, and then dried in a nitrogen environment for 2 hours;

[0042] (2) Add 10nm, 20nm, 50nm, 80nm, 100nm, 150nm nano-silica to 1000mL absolute ethanol with a weight ratio of 20:30:10:10:15:15 and stir for 30 minutes to form a concentration of 2wt % nano silicon dioxide solution;

[0043] (3) Immerse the cleaned glass in the nano-silica solution for 20 minutes, then pull it out from the nano-silica solution at a speed of 10 cm / min, and dry it at 400° C. for 10 hours;

[0044] (4) Repeat step (3) 3 times;

[0045] (5) Place the glass impregnated with nano-silica in a stearic acid ethanol solution with a concentration of 1...

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Abstract

The invention belongs to the technical field of superhydrophobic material preparation and provides a novel preparation method of superhydrophobic glass. The novel preparation method comprises the main steps of 1, cleaning the surface of glass by anhydrous ethanol, acetone, hydrogen peroxide and concentrated sulfuric acid, 2, adding spherical nano-silica particles into anhydrous ethanol and fully stirring to obtain a nano-silica solution having a concentration of 0.01 to 10.0wt%, 3, immersing the glass in the nano-silica solution for 1 to 30 minutes, slowly and vertically pulling out the glass from the nano-silica solution, and drying the glass in a vacuum drying oven having a temperature of 100 to 500 DEG C for 1 to 10 hours, and 4, through low-surface energy materials of heptadecafluoro-trimethoxyethoxysilane and stearic acid, modifying the surface of the glass treated by the step 3 to obtain the superhydrophobic glass which is transparent.

Description

Technical field: [0001] The invention relates to a method for preparing superhydrophobic glass, which belongs to the technical field of superhydrophobic material preparation. Background technique: [0002] Glass is widely used in automobiles, construction, aerospace and other fields. However, the surface of ordinary glass is easy to accumulate dust, especially when sewage is splashed on the glass, it will often leave traces of pollution that are difficult to wipe off, which greatly affects the quality of the glass. beautiful. The annual cleaning cost of various glass surfaces in my country reaches more than 10 billion yuan. Therefore, self-cleaning glass has become an urgently needed product in the market. [0003] Inspired by the lotus leaf effect, superhydrophobic materials with surface-water contact angles greater than 150° have attracted widespread interest in recent years. The typical characteristics of super-hydrophobic materials are: when water droplets form shiny ...

Claims

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Application Information

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IPC IPC(8): C03C17/23
Inventor 袁志庆李慧王许南徐训蒙
Owner 袁志庆
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