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Method for preparing flower-like silicon dioxide-based composite photocatalytic antibacterial water-based interior wall paint

A composite photocatalysis and silica technology, applied in biocide-containing paints, anti-fouling/underwater coatings, coatings, etc., can solve agglomeration, uneven dispersion, and poor antibacterial effect of photocatalytic water-based interior wall paint Good and other problems, to achieve the effect of good film formation, not easy to fall off and agglomeration, excellent photocatalytic antibacterial performance

Pending Publication Date: 2021-05-18
CHONGQING UNIV OF ARTS & SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In summary, the purpose of the present invention is to provide a method for preparing flower-shaped silica-based composite photocatalytic antibacterial water-based interior wall paint, to solve the problem of adding a single structure or a single type of photocatalytic particles in the water-based interior wall paint in the prior art. The problem of poor antibacterial effect of the prepared photocatalytic water-based interior wall paint is that it is prone to agglomeration and uneven dispersion.

Method used

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  • Method for preparing flower-like silicon dioxide-based composite photocatalytic antibacterial water-based interior wall paint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029]Methods of preparing antibacterial water-like wall paint, including antibacterial water-based wall paint, including the following steps:

[0030]Step 1, configure the silica-based composite photocatalytic particulate precursor solution: Silica sine sine sine sinenson tetrachloride is referred to in ultrapure water, and the silicone complex is controlled by adding an aqueous solution to the silicone complex. The precipitate was filtered, and then the precipitate was sufficiently cleaned by ultrapure water and anhydrous ethanol, and the constant temperature drying case was dried to obtain a silicine complex precipitate. Subsequently 6 mg / ml attached photocatalytic nanoparticle graphene and reductant oxide graphene solution was then added to the prepared silicine complex precipitate, and was configured to be 0.5 mol / L in precursor solution by ammonia water and ultrapure water. Ultrasonic oscillating 30min was prepared from a uniform silica-based composite photocatalytic particul...

Embodiment 2

[0032]Methods of preparing antibacterial water-like wall paint, including antibacterial water-based wall paint, including the following steps:

[0033]Step 1, configure the silica-based composite photocatalytic particulate precursor solution: Silica sine sine sine sinenson tetrachloride is referred to in ultrapure water, and the silicone complex is controlled by adding an aqueous solution to the silicone complex. The precipitate was filtered, and then the precipitate was sufficiently cleaned by ultrapure water and anhydrous ethanol, and the constant temperature drying case was dried to obtain a silicine complex precipitate. Subsequent 6 mg / ml adhering photocatalytic nanoparticle graphene and reductant oxide oxide solution were then added to the prepared silicine complex precipitate, and the precursor solution of 1.0 mol / L was configured by ammonia water and ultrapure water. Ultrasonic oscillating 30min was prepared from a uniform silica-based composite photocatalytic particulate pr...

Embodiment 3

[0035]Methods of preparing antibacterial water-like wall paint, including antibacterial water-based wall paint, including the following steps:

[0036]Step 1, configure the silica-based composite photocatalytic particulate precursor solution: Silica sine sine sine sinenson tetrachloride is referred to in ultrapure water, and the silicone complex is controlled by adding an aqueous solution to the silicone complex. The precipitate was filtered, and then the precipitate was sufficiently cleaned by ultrapure water and anhydrous ethanol, and the constant temperature drying case was dried to obtain a silicine complex precipitate. Subsequently 6 mg / ml of photocatalytic nanoparticle graphene and reductant oxide graphene solution were then added to the prepared silicine complex precipitate, and the predecessor solution of 1.5 mol / L was configured by ammonia water and ultrapure water. Ultrasonic oscillating 30min was prepared from a uniform silica-based composite photocatalytic particulate p...

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Abstract

The invention discloses a method for preparing flower-like silicon dioxide-based composite photocatalytic antibacterial water-based interior wall paint. The method comprises the following steps: preparing a silicon dioxide-based composite photocatalytic particle precursor solution; sequentially and mechanically stirring the precursor solution and components of the water-based interior wall paint to obtain a mixed coating; and conducting microwave reaction synthesis on the mixed coating, so as to obtain the photocatalytic antibacterial interior wall paint. According to the photocatalytic antibacterial interior wall paint and the preparation method thereof, the silicon dioxide-based composite photocatalytic nano-particles are dispersed in the water-based interior wall paint in the form of a precursor mixed solution, so that the photocatalytic particles are better in stability and dispersity. The attached photocatalytic nanoparticles are uniformly dispersed and wrapped on the flower-shaped silicon dioxide photocatalytic particles, so that the specific surface area is larger, more active sites are provided, the antibacterial and bactericidal effects of the prepared composite water-based interior wall paint are effectively improved, and the adsorption effect of silicon dioxide has important influence on the photocatalytic activity; and the growth of the composite photocatalytic particles can be effectively controlled, so that a relatively small particle size and a high specific surface area are obtained, and the photocatalytic antibacterial effect is further improved.

Description

Technical field[0001]The present invention belongs to the technical field of photocatalytic environmental protection coating, and more particularly to methods of preparing antibacterial water-like wall paint in the preparation of antibacterial water-based wall paint.Background technique[0002]Water-based wall paint is used in a large number of indoor wall decorative materials, due to their inactive and working in a long-term and human body contact, water-based internal wall paint harmful to the harmful material, and free formaldehyde, lead, chromium and other heavy metal ions The content has caused a wide concern to the safety of their long-term use. At the same time, as people's requirements for indoor air quality are getting higher and higher, especially the sustained effects of various closed space air dissemination diseases, forced us to put forward higher requirements for indoor antibacterial decoration materials. The existing photocatalytic inner wall paint is basically made of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D5/14C09D7/61C09D7/62
CPCC08K2003/265C08K2201/011C09D5/14C09D175/04C09D7/61C09D7/62C09D7/70C08K3/26C08K3/346C08K3/36C08K7/00C08K3/042C08K9/12C08K13/06
Inventor 翟福强李璐罗永以陈西浩
Owner CHONGQING UNIV OF ARTS & SCI
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