Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for constructing self-cleaned anti-reflective film by using hollow nano composite particles

A nanoparticle and composite nanoparticle technology is applied in the field of constructing a self-cleaning anti-reflection film by using hollow nanocomposite particles, which can solve the problems of low content and limited photocatalytic effect, and achieve high self-cleaning performance, good photo-induced hydrophilicity and photocatalysis. performance effect

Inactive Publication Date: 2015-01-28
CHANGZHOU UNIV
View PDF7 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

By precisely controlling thin-film TiO 2 The thickness of the film layer can reduce its adverse effect on light transmittance. We have disclosed that about 10nm of TiO is plated on the surface of the anti-reflection film through precise control. 2 The coating (ZL2010102623352) has also achieved excellent photoinduced superhydrophilic effect, and the light transmittance of the film is due to TiO 2 The introduction of the film layer decreased by about 1%, but due to the TiO 2 Less content, limited photocatalytic effect

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for constructing self-cleaned anti-reflective film by using hollow nano composite particles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] (1) At room temperature (25°C), 0.06g of acrylic resin emulsion (solid content 30%, active ingredient polyacrylic acid M w is 5000) dissolved in 1.5ml NH 4 Add 50ml of EtOH to OH, stir vigorously for 10min, and then add 0.5ml of TEOS dropwise in 5 times with a time interval of 10min, adding 0.1ml of TEOS each time. Seal the resulting mixture and stir vigorously for 10h to obtain two Silica nanoparticle sol;

[0018] (2) the silicon dioxide nanoparticle sol obtained in step (1) was left open and stirred in a fume hood for 2h (adjusting the pH value of the sol to be 7), then adding 0.6ml titanium isopropoxide TTIP to the sol, Stir at room temperature (25°C) for 6 hours (titanium isopropoxide is hydrolyzed into titanium dioxide and cover the surface of silica nanoparticles), centrifuge at 10,000 rpm for 5 minutes, filter and dry to obtain titanium dioxide-wrapped silica composite nanoparticles particle;

[0019] (3) disperse the titanium dioxide wrapped silica composite...

Embodiment 2

[0023] (1) At room temperature (25°C), 0.1g of acrylic resin emulsion (solid content 30%, active ingredient polyacrylic acid M w is 5000) dissolved in 1.5ml NH 4 Add 50ml of EtOH to OH, stir vigorously for 10min, then add 1ml of TEOS dropwise in 5 times, the time interval is 10min, each time TEOS is 0.2ml, seal the obtained mixed solution and stir vigorously for 10h to obtain Silicon nanoparticle sol;

[0024] (2) The silicon dioxide nanoparticle sol obtained in step (1) was left open and stirred for 2h in a fume hood (the pH value of the sol was adjusted to be 7), and then 1.3ml of titanium isopropoxide TTIP was added to the sol, Stir at room temperature (25°C) for 6 hours (titanium isopropoxide is hydrolyzed into titanium dioxide and cover the surface of silica nanoparticles), centrifuge at 10,000 rpm for 5 minutes, filter and dry to obtain titanium dioxide-wrapped silica composite nanoparticles particle;

[0025](3) disperse the titanium dioxide wrapped silica composite ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Pencil hardnessaaaaaaaaaa
Water contact angleaaaaaaaaaa
Login to View More

Abstract

The invention belongs to the field of preparation of inorganic hybrid membrane and particularly relates to a method for constructing a self-cleaned anti-reflective film by using hollow nano composite particles. The method comprises the following steps: by using strawberry-like nano silicon oxide composite titanium oxide hollow spheres as a basic constructing unit of the anti-reflective film, respectively plating a thin film on each side of clean glass by using a dip-coating method; and calcining at 500 DEG C to obtain the multifunctional anti-reflective film with photo-induced super-hydrophilicity and photocatalytic self-cleaning function as well as the highest light transmittance in a visible range of over 99%.

Description

technical field [0001] The invention belongs to the field of preparation of inorganic hybrid membranes, in particular to a method for constructing self-cleaning anti-reflection membranes by using hollow nanocomposite particles. Background technique [0002] Anti-reflection coatings play an important role in new energy photovoltaic power generation and solar thermal power generation technologies. A silicon solar photovoltaic cell that has not been treated with anti-reflection coatings will lose more than 30% of the reflected light on its surface, which fundamentally limits photoelectric conversion. rate increase. And using the anti-reflection film technology, if the sunlight reflection on the surface of the solar thermal power vacuum glass tube is reduced by 4%, it is equivalent to a 20% increase in the system efficiency of a 50MW power station. Due to the harsh working conditions in the field and the general 20-year service life requirement of solar modules, the surface of ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C03C17/23
CPCC03C17/256C03C2217/71C03C2217/73C03C2218/365
Inventor 陈若愚王韵博王红宁钟璟刘小华
Owner CHANGZHOU UNIV