Water-based nanometer titanium dioxide photocatalytic sterilization purification coating and preparation method thereof

A nano-titanium dioxide, photocatalytic technology, applied in the field of coatings, can solve the problems of inability to meet the living environment, purifying the air, limited ability to kill bacteria, selective killing of bacteria by nano-titanium dioxide and weak antibacterial effect, etc., to expand the application. range, excellent ageing resistance, longevity effect

Inactive Publication Date: 2018-09-04
合肥易美特建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its ability to purify air and kill bacteria is limited, and the selective killing and antibacterial effects of nano-titanium dioxide on bacteria are still weak, which cannot meet the increasingly stringent requirements of living environment.

Method used

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  • Water-based nanometer titanium dioxide photocatalytic sterilization purification coating and preparation method thereof
  • Water-based nanometer titanium dioxide photocatalytic sterilization purification coating and preparation method thereof
  • Water-based nanometer titanium dioxide photocatalytic sterilization purification coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] This implements water-based nano-titanium dioxide photocatalytic sterilization and purification coating, and the raw material components comprising the following mass percentages are shown in Table 1:

[0034] The raw material of the water-based nano-titanium dioxide photocatalytic sterilization purification coating of table 1 embodiment 1

[0035]

[0036] The specific preparation steps of the water-based nano-titanium dioxide photocatalytic sterilization and purification coating of the present embodiment are as follows:

[0037] (1) Mix nano-titanium dioxide, 1 / 3 water and silane coupling agent evenly, then reflux reaction in a water bath at 60°C for 5 hours, then cool down to room temperature, and the product is centrifuged and washed to obtain nano-nanometer titanium dioxide modified by silane coupling agent ;

[0038] (2) Inorganic antibacterial agent and anion micropowder are added successively in the water-based organosilicon modified acrylic emulsion, under ...

Embodiment 2

[0041] This implements water-based nano-titanium dioxide photocatalytic sterilization and purification coating, and the raw material components comprising the following mass percentages are shown in Table 2:

[0042] The raw material of the water-based nano-titanium dioxide photocatalytic sterilization purification coating of table 2 embodiment 2

[0043]

[0044] The specific preparation method of the water-based nano-titanium dioxide photocatalytic sterilization and purification coating of this embodiment is the same as that of Embodiment 1.

Embodiment 3

[0046] This implements water-based nano-titanium dioxide photocatalytic sterilization and purification coating, and the raw material components comprising the following mass percentages are shown in Table 3:

[0047] The raw material of the water-based nano-titanium dioxide photocatalytic sterilization purification coating of table 3 embodiment 3

[0048]

[0049]

[0050] The specific preparation method of the water-based nano-titanium dioxide photocatalytic bactericidal purification coating of the present embodiment is the same as in Example 1

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Abstract

The invention discloses a water-based nanometer titanium dioxide photocatalytic sterilization purification coating and a preparation method thereof. The coating is prepared from 38-55 wt% of nanometertitanium dioxide, 10-30 wt% of a waterborne organosilicone modified acrylic emulsion, 2-5 wt% of silicate, 1.5-3.5 wt% of an inorganic antibacterial agent, 1-3 wt% of negative ion micro-powder, 1.4-5.0 wt% of a functional assistant, 2-4 wt% of a silane coupling agent, 0.4-0.8 wt% of a wetting dispersant, and the balance of water. The coating has air purifying and bacterium killing effects, is green and environmentally friendly, has excellent anti-aging property, scrub resistance, cohesiveness, corrosion resistance and the like, can directly replace putty powder and a latex paint, and can be directly firmly bonded with a cement mortar wall without peeling, shedding or cracking.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a water-based nano-titanium dioxide photocatalytic sterilization and purification coating and a preparation method thereof. Background technique [0002] Paint is a new type of polymer material and supporting engineering material that is coated on the surface of the protected and decorated substrate and can form a continuous film that is firmly attached. It has a wide range of applications. At present, architectural coatings mainly play a decorative and protective role, and rarely involve antibacterial and air purification functions. [0003] At present, indoor air pollution is serious and increasing day by day. According to surveys in recent years, it has been found that indoor air pollution is more serious than outdoor. Indoor air pollution is affected by many factors. In addition to air pollution entering the room, there are also indoor pollution sources. Modern building m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D5/14C09D5/08C09D7/63
CPCC09D133/04C08K2003/2241C08K2201/011C09D5/08C09D5/14C09D7/63C08L1/284C08K13/06C08K9/06C08K3/22C08K5/20
Inventor 朱明静
Owner 合肥易美特建材有限公司
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