Method for preparing photoinduced ultra hydrophilic automatically cleaning paint

A super-hydrophilic, self-cleaning technology, applied in coating and other directions, can solve the problems of increasing production cost, inconvenient use, and increasing energy consumption.

Inactive Publication Date: 2011-09-28
CHONGQING UNIV
View PDF3 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the anatase titanium dioxide film prepared by this method must be obtained by putting the substrate coated with titanium dioxide sol (called coating in this case) into a muffle furnace for heat treatment, therefore, for buildings that cannot be heat treated As far as the exterior wall is concerned, the preparat

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 preparing photoinduced ultra hydrophilic automatically cleaning paint
  • Method for preparing photoinduced ultra hydrophilic automatically cleaning paint
  • Method for preparing photoinduced ultra hydrophilic automatically cleaning paint

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0018] A preparation method of photoinduced superhydrophilic self-cleaning paint, the method includes the following steps:

[0019] ① Disperse titanium hydroxide in distilled water, and gradually add 30% mass fraction of hydrogen peroxide solution and stir thoroughly to obtain a titanium dioxide suspension;

[0020] Among them, titanium hydroxide: distilled water = 1.5g: 100mL (in industrial production, conversion according to this ratio, the same below);

[0021] ② Gradually drip 1% cerium nitrate solution into the titanium dioxide suspension obtained in step ①, and stir under microwave heating conditions to obtain a cerium-doped anatase titanium dioxide sol for use;

[0022] Among them, titanium dioxide suspension: 1% cerium nitrate solution = 106g: 0.5mL; microwave frequency is 2450MHz, microwave power 800W, heating temperature 90℃, heating time 90min;

[0023] ③ Put absolute ethanol, 50% ammonia water and distilled water in the reactor and stir evenly at room temperature with magnet...

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

No PUM Login to view more

Abstract

The invention provides a method for preparing a photoinduced ultra hydrophilic automatically cleaning paint, comprising the following steps: (1) preparing titanium dioxide suspension by using titanium hydroxide; (2) preparing cerium-doped anatase titanium dioxide for subsequent use; (3) placing waterless ethanol, ammoniacal liquor, distilled water and ethyl orthosilicate which is added later into a reactor and magnetic stirring uniformly; (4) magnetic stirring the mixed liquor prepared in step (3) for more than 3 h in a constant temperature bath of 80 DEG C to obtain silica sol; (5)mixing the cerium-doped anatase titanium dioxide prepared in step (2), silica sol prepared in step (4) with waterless ethanol and stirring uniformly to obtain the photoinduced ultra hydrophilic automatically cleaning paint. The photoinduced ultra hydrophilic automatically cleaning paint has the advantages of simple use and convenient. The preparation method has the advantages of low energy consumption, saving heat treatment equipment, and low cost.

Description

technical field [0001] The invention relates to a preparation method of nano-titanium dioxide photoinduced superhydrophilic self-cleaning coating. Background technique [0002] The photoinduced superhydrophilic self-cleaning film is made of nano-titanium dioxide (TiO 2 ) The super-hydrophilic self-cleaning coating is applied to the coating film formed on glass, tiles, building exterior walls and other substrates. It not only has the function of killing microbes in the pollutants adsorbed on the surface of the paint film under the light of a certain wavelength, so as to achieve the purpose of self-cleaning, but also has good hydrophilicity. After the paint film is applied, the dust and other dirt adsorbed on the surface of the paint film can be washed away with the rain by the scouring of rainwater, achieving the effect of automatically removing stains on the exterior wall of the building. Therefore, since nano-titanium dioxide superhydrophilic self-cleaning coatings came i...

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): C09D1/00C09D7/12
Inventor 杜军尹婷陶长元刘作华牟天明范兴左赵宏侯军
Owner CHONGQING UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap