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Preparation method of transparent superhydrophilic porous titanium dioxide film for solar thermal power generation mirror

A solar thermal power generation, porous titanium dioxide technology, applied in the direction of coating, etc., can solve the problem of not being retrieved, and achieve the effects of strong and easy cleaning ability, strong impact resistance, and simple process flow

Active Publication Date: 2018-11-30
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

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  • Preparation method of transparent superhydrophilic porous titanium dioxide film for solar thermal power generation mirror
  • Preparation method of transparent superhydrophilic porous titanium dioxide film for solar thermal power generation mirror
  • Preparation method of transparent superhydrophilic porous titanium dioxide film for solar thermal power generation mirror

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Embodiment 1

[0029] A method for preparing a transparent superhydrophilic porous titanium dioxide film for a solar thermoelectric mirror, comprising the following steps:

[0030] (1) Clean the glass substrate with washing liquid and deionized water, then ultrasonically clean it with acetone, absolute ethanol, and deionized water for 15 minutes, then wash it again with absolute ethanol, and dry it for later use;

[0031] (2) Accurately measure 60ml of absolute ethanol, 10ml of butyl titanate, 2ml of acetylacetone, 0.7ml of ammonia water and stir at room temperature for 10min to form A solution; then measure 30ml of absolute ethanol, 10ml of deionized water and 1ml of concentrated hydrochloric acid Mix well to form B solution, add B solution dropwise to A solution, continue to stir at 20 °C for 1 h, and form a stable yellow transparent TiO 2 Sol.

[0032] (3) Using the spin coating method, the TiO that has not been aged in step (2) 2 Take 1 drop of sol on the center of the glass substrate ...

Embodiment 2

[0036] A method for preparing a transparent superhydrophilic porous titanium dioxide film for a solar thermoelectric mirror, comprising the following steps:

[0037] (1) Clean the glass substrate with washing liquid and deionized water, then ultrasonically clean it with acetone, absolute ethanol, and deionized water for 30 minutes respectively, then wash it with absolute ethanol again, and dry it for later use;

[0038] (2) Accurately measure 120ml of absolute ethanol, 10ml of butyl titanate, 2ml of acetylacetone, 0.7ml of ammonia water and stir for 30min at 25°C to form A solution; then measure 60ml of absolute ethanol, 10ml of deionized water and 1ml of concentrated Mix hydrochloric acid evenly to form B solution, add B solution to A solution drop by drop, continue to stir at 40°C for 2 hours, seal and darken for 24 hours, and form stable yellow transparent TiO 2 Sol.

[0039] (3) adopt spin-coating method, in step (2) TiO 2 Take 1 drop of the sol and drop it on the center...

Embodiment 3

[0048] A method for preparing a transparent superhydrophilic porous titanium dioxide film for a solar thermoelectric mirror, comprising the following steps:

[0049] (1) Clean the glass substrate with washing liquid and deionized water, then ultrasonically clean it with acetone, absolute ethanol, and deionized water for 20 minutes respectively, then wash it with absolute ethanol once, and dry it for later use;

[0050] (2) Accurately measure 180ml of absolute ethanol, 10ml of butyl titanate, 2ml of acetylacetone, 0.7ml of ammonia water and stir at 25°C for 60min to form A solution; then measure 90ml of absolute ethanol, 10ml of deionized water and 1ml of concentrated Mix hydrochloric acid evenly to form B solution, add B solution drop by drop to A solution, continue to stir at 60°C for 4 hours, seal and darken for 24 hours, and form stable yellow transparent TiO 2 Sol.

[0051] (3) adopt spin-coating method, in step (2) TiO 2 Take 1 drop of sol and drop it on the center of t...

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Abstract

The invention relates to a method for preparing a porous TiO2 film with the phase separation principle, in particular to a method for preparing a transparent super-hydrophilic porous TiO2 film for a solar thermal power generation reflector.The method is characterized by including the following steps that 1, a glass substrate is cleaned and dried ready for use; 2, TiO2 sol is prepared; 3, a TiO2 film is obtained with a spin-coating method; 4 coated glass obtained in the step 3 is placed into a muffle furnace and heated to be at 100 DEG C-200 DEG C at the speed of 1 DEG C / min-3 DEG C / min, the temperature is preserved for 10 min-30 min, the coated glass is then heated to be at 400 DEG C-550 DEG C at the speed of 2 DEG C / min-4 DEG C / min, the temperature is preserved for 1 h-8 h, then the coated glass is subjected to furnace cooling to be at the room temperature, and the transparent super-hydrophilic porous TiO2 film for the solar thermal power generation reflector is obtained.According to the film prepared with the method, the contact angle with water in the natural state is smaller than 5 degrees, the transmittance is higher than 80%, and high cleaning capacity and the anti-fog performance are achieved.

Description

technical field [0001] The invention relates to a method for preparing porous TiO by using the principle of phase separation 2 thin-film approach, specifically involving a naturally superhydrophilic transparent porous TiO 2 Thin film preparation, used in solar reflective materials, building glass, windshield and other fields. Background technique [0002] Large-scale development of the solar power generation market is conducive to improving the power energy structure dominated by coal power. At present, solar power generation is divided into two ways: solar direct power generation and indirect power generation. Solar direct power generation includes thermal ion power generation, solar photovoltaic power generation, solar light induction power generation, thermoelectric power generation and magnetic fluid power generation; solar indirect power generation includes low-temperature non-concentrating power generation And medium and high temperature concentrating power generatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C17/23
CPCC03C17/23C03C2217/212
Inventor 李宏张艳文贺慧婷
Owner WUHAN UNIV OF TECH
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