A kind of silicon dioxide nanocomposite material and its preparation method and application

A nano-composite material and silicon dioxide technology, applied in the field of nano-materials, can solve problems such as poor firmness of film and glass substrate, poor mechanical wear resistance and weather resistance, anti-reflection and anti-reflection durability, etc., to avoid stability problems, Excellent effect of improving wear resistance, stability and weather resistance

Active Publication Date: 2020-12-15
STATE POWER INVESTMENT CORP RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above method must be in an environment irradiated by ultraviolet light to achieve hydrophilic properties, and it is difficult to achieve the above effects in a dark environment, thus limiting its scope of application; at the same time, the above-mentioned related technologies also have self-cleaning, anti-fog effects, Defects such as anti-reflection and anti-reflection and unsatisfactory durability
[0007] In addition, nanoporous silica films can also be prepared on the substrate, which can achieve the effect of using water droplets to spread rapidly on the surface of the porous film, thereby avoiding the dependence on sunlight; however, the porous two Silicon oxide nano-films usually have poor mechanical wear resistance and weather resistance, especially the poor firmness between the film and the glass substrate, so they cannot function outdoors for a long time

Method used

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  • A kind of silicon dioxide nanocomposite material and its preparation method and application
  • A kind of silicon dioxide nanocomposite material and its preparation method and application
  • A kind of silicon dioxide nanocomposite material and its preparation method and application

Examples

Experimental program
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Effect test

Embodiment 1-1

[0080] Embodiment 1-1 prepares silica nanoparticle suspension

[0081] Under the condition of condensation and reflux, stir 2L of ethanol and 100mL of concentrated ammonia water in a water bath at about 60°C; The reaction product is placed in a fume hood to remove ammonia water until the pH of the product reaches 7.0-7.5, and then a suspension of silica nanoparticles is obtained. The content of silica nanoparticles is about 7.5 mg / mL, which can be sealed and stored at room temperature.

[0082] figure 1 is the transmission diagram of the silica nanoparticle suspension prepared above; by figure 1 It can be seen that the average particle diameter of the silica nanoparticles in the suspension prepared in this example is about 20 nm.

Embodiment 1-2

[0083] Embodiment 1-2 prepares silica nanoparticle suspension

[0084] Under the condition of condensation and reflux, stir 20L ethanol and 1000mL concentrated ammonia water in a water bath at about 60°C; The reaction product was placed in a fume hood to remove ammonia water until the pH of the product reached 7.0-7.5 to obtain a suspension of silica nanoparticles, wherein the content of silica nanoparticles was about 7.5mg / mL.

[0085] figure 2 is the transmission diagram of the silica nanoparticle suspension prepared above; by figure 2 It can be seen that the average particle diameter of silica nanoparticles in the suspension prepared in this embodiment is about 20nm; -30nm accounts for about 10%. It can be seen that the preparation method of the silica nanoparticle suspension of the present invention has good repeatability and stability, and can be prepared on a large scale according to actual production requirements.

Embodiment 1-3

[0086] Embodiment 1-3 prepares silica nanoparticle suspension

[0087] Under the condition of condensing and reflux, stir 20L ethanol and 800mL concentrated ammonia water in a water bath at about 30°C; The reaction product is placed in a fume hood to remove ammonia water until the pH of the product reaches 7.0-7.5, and then a suspension of silica nanoparticles is obtained, wherein the content of silica nanoparticles is about 4mg / mL, and the average particle size is about 10nm.

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Abstract

The invention provides a silicon dioxide nanometer composite material and a preparation method and application thereof. The silicon dioxide nanometer composite material is mainly formed by compoundingsilicon dioxide nanoparticle suspension and nanometer silicon dioxide acidic sol, wherein the particle size of silicon dioxide nanometer particles in the silicon dioxide nanometer particle suspensionis 5-30 nm; the nanometer silicon dioxide acidic sol is provided with chain nanosilicon dioxide, and the veneer content of the nanometer silicon dioxide acidic sol is 70-90%. A silicon dioxide nanometer composite thin film prepared from the silicon dioxide nanometer composite material has good effects of antireflection, self cleaning and mist prevention, meanwhile has good mechanical abrasion resistance and weather resistance, is good in firmness with a matrix, is not limited during usage, can exert effects for a long term in the field, and is wide in application range.

Description

technical field [0001] The invention relates to a nanometer material, in particular to a silica nanocomposite material and its preparation method and application. Background technique [0002] Multifunctional glass is glass with multiple functions such as anti-reflection and anti-reflection, self-cleaning performance, high mechanical strength and / or good weather resistance. With the development of science and technology, the research and development of multifunctional glass is very urgent; at the same time, the requirements for the simplicity, scale and cost control of the preparation method of multifunctional glass are also getting higher and higher. [0003] Anti-reflection coating, also known as anti-reflection coating, its main function is to reduce or eliminate the reflected light from optical surfaces such as lenses, prisms, and plane mirrors, thereby increasing the light transmission of these components and reducing or eliminating the stray light of the system. The a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D1/00C03C17/25
CPCC03C17/25C03C2217/213C03C2217/732C03C2217/78C03C2218/111C03C2218/112C09D1/00
Inventor 刘德军杜鑫罗田李延生王雨露付婧张蓉
Owner STATE POWER INVESTMENT CORP RES INST
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