Air purifying coating capable of releasing anions and preparation method thereof

An air purification, negative ion technology, applied in the direction of polyurea/polyurethane coatings, coatings, etc., can solve the problem of short release time of negative ions, and achieve the effect of low volatile organic compound content, lower production cost and environmental pollution.

Inactive Publication Date: 2018-09-14
合肥金云新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Yet have the air-purifying coating that releases negative ions to fail to obtain good popularization and application always on the market, this is because the negative-ion release persistence of air-purifying coating has always been a technical difficulty for t

Method used

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  • Air purifying coating capable of releasing anions and preparation method thereof
  • Air purifying coating capable of releasing anions and preparation method thereof
  • Air purifying coating capable of releasing anions and preparation method thereof

Examples

Experimental program
Comparison scheme
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Example Embodiment

[0041] Example 1

[0042] In this implementation, an air purification coating that releases negative ions contains the following raw material components by mass percentage as shown in Table 1:

[0043] Table 1 Example 1 of the negative ion-releasing air purification coating materials

[0044]

[0045] The specific preparation steps of the negative ion-releasing air purification paint of this embodiment are as follows:

[0046] (1) First, add the hydroxy polyurethane resin and functional additives into the reactor at room temperature and stir for 20 minutes to fully emulsify;

[0047] (2) Add the carboxyl polyester resin and anion powder to the reactor in turn, with a stirring speed of 2000 rpm and high-speed dispersion to obtain a uniformly dispersed emulsion;

[0048] (3) Finally, the film-forming aid, pH adjuster and water are added to the reaction to adjust the pH and viscosity of the system. After the system is stable, the air purification coating that releases negative ions is obtai...

Example Embodiment

[0049] Example 2

[0050] In this implementation, an air purification coating that releases negative ions contains the following raw material components by mass percentage as shown in Table 2:

[0051] Table 2 Example 2 of the negative ion-releasing air purification coating materials

[0052]

[0053] The specific preparation method of the negative ion-releasing air purification coating of this embodiment is the same as that of Example 1.

Example Embodiment

[0054] Example 3

[0055] In this implementation, an air purification coating that releases negative ions contains the following raw material components by mass percentage as shown in Table 3:

[0056] Table 3 Example 3 of the raw materials of the negative ion-releasing air purification paint

[0057]

[0058] The specific preparation method of the negative ion-releasing air purification coating of this embodiment is the same as that of Example 1.

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Abstract

The invention discloses an air purifying coating capable of releasing anions and a preparation method thereof. The coating is composed of, by mass, 35-60% of hydroxyl polyurethane resin, 10-30% of anion powder, 2-5% of carboxyl polyester resin, 1.4-5.0% of functional aid, 4-6% of film forming aid, 0.2-0.5% of pH adjuster and the balance of water. When the hydroxyl polyurethane resin and the carboxyl polyester resin are in crosslinking reaction during curing, water molecules are generated, and tiny pinholes are formed in the surface of a film, so that anion release is facilitated; through synergism among the hydroxyl polyurethane resin, the carboxyl polyester resin and the anion powder, the coating has a function of continuously releasing the anions. The anion coating is low in volatile organic compound content, so that environment pollution can be reduced substantially, and the air purifying coating is environment-friendly.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to an air-purifying coating releasing negative ions and a preparation method thereof. Background technique [0002] With the development of industrialization and informationization, people's pursuit of their own living standards is getting higher and higher, especially in the modern and contemporary society of industrialization. According to the theory of the Atmospheric Joint Committee of the International Union of Geodesy and Geophysics, air negative ions are OH-(H2O)n, O2-(H2O)n and CO4-(H2O)n, and the appropriate concentration of negative ions in the air is harmful to human health. , longevity and ecological environment has a very beneficial role. [0003] The existence states and forms of trace harmful gases floating in the air are complex and diverse. Some exist in the state of gas free molecules, some are surrounded by positive charges floating in the air to form positive i...

Claims

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Application Information

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IPC IPC(8): C09D175/04C09D7/61C09D7/63C09D7/65C09D7/43
CPCC09D175/04C08K2003/324C08K2003/387C08L2205/035C09D7/43C09D7/61C09D7/63C09D7/65C08L67/00C08L83/04C08L83/12C08L1/286C08K13/02C08K3/38C08K3/22C08K3/34C08K5/17C08K3/32
Inventor 谭群英
Owner 合肥金云新材料有限公司
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