Preparation method of nano titanium dioxide ultraviolet light catalytic purification coating layer

Abstract

The invention relates to the technical field of purification, and in particular, relates to a preparation method of a nano titanium dioxide ultraviolet light catalytic purification coating layer, wherein the preparation method comprises the following steps: proportionally putting carrier dispersion slurry into a high-speed dispersion machine, and stirring at low speed by using the high-speed dispersion machine; respectively adding a nano titanium dioxide dispersion liquid, a fluorine-acrylic emulsion and water glass while stirring, uniformly stirring, and continuously and slowly adding a cosolvent and a coalescing agent with the same amount; adjusting the rotating speed of the high-speed dispersion machine, then continuously and slowly adding a high-shear rheological additive, mixing and stirring for 5-10 min, then carrying out the next step of operation, and properly adjusting the rotating speed of the high-speed dispersion machine along with the increase of the viscosity; and diluting a low-shear rheological additive by using two times of deionized water, and then slowly adding the low-shear rheological additive into the high-speed dispersion machine for many times until the viscosity of the low-shear rheological additive is 85-90. The nano titanium dioxide ultraviolet light catalytic purification coating layer has the functions of purifying air and resisting bacteria.

Description

technical field [0001] The invention relates to the technical field of purification, in particular to a method for preparing a nano-titanium dioxide ultraviolet photocatalytic purification coating. Background technique [0002] In today's society, environmental pollution is becoming more and more serious, and the current technical level is far from meeting the requirements of air purification. The current main purification technologies include high-voltage electrostatic dust collection; ozone, negative ion sterilization; filter purification technology, HEPA, activated carbon smoke and dust removal, and physical adsorption of harmful substances in the air. Although the above technologies can play a certain role in fresh air through physical methods , Inhibit bacteria, collect dust and remove odors, etc. to purify the air, but it still cannot achieve the purpose of thorough purification. Its disadvantages mainly include: harmful gases, germs, viruses, microorganisms and other...

AI Technical Summary

Problems solved by technology

[0002] In today's society, environmental pollution is becoming more and more serious, and the current technical level is far from meeting the requirements of air purification.

The current main purification technologies include high-voltage electrostatic dust collection; ozone, negative ion sterilization; filter purification technology, HEPA, activated carbon smoke and dust removal, and physical adsorption of harmful substances in the air. Although the above technologies can play a certain role in fresh air through physical methods , Inhibit bacteria, collect dust and remove odors, etc. to purify the air, but it still cannot achieve the purpose of thorough purification

Its disadvantages mainly include: harmful gases, germs, viruses, microorganisms and other pollutants cannot be eliminated; harmful gases cannot be decomposed, easy to be saturated, and short service life