Air purification material and preparation method thereof

A technology for air purification materials and substrates, which is applied in the field of air purification and can solve problems such as limiting the scope of use

Active Publication Date: 2019-11-15
SHENZHEN ZHONGQING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] On the other hand, although macroporous resins have the advantages of high specific surface area and high loading rate, they are generally in the form of granules, which are difficult to be made into other shapes such as flakes, thus limiting their scope of use.

Method used

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  • Air purification material and preparation method thereof
  • Air purification material and preparation method thereof
  • Air purification material and preparation method thereof

Examples

Experimental program
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no. 1 example

[0031] First, refer to figure 1 , which shows a flow chart of preparing an air-purifying material according to the present invention. Such as figure 1 As shown, in step s101, manganese oxide capable of decomposing formaldehyde is prepared. Manganese oxide can effectively decompose formaldehyde at normal temperature, and is a good material for decomposing formaldehyde. Subsequently, in step s102, the prepared manganese oxide is loaded onto a macroporous resin as a substrate to prepare a macroporous resin loaded with manganese oxide, and the air purification material according to the present invention can be obtained.

[0032] Hereinafter, the method for preparing an air-purifying material according to the present invention will be specifically described.

[0033] Manganese oxide preparation

[0034] According to one embodiment, the manganese oxide according to the present invention may be a birnessite-type manganese oxide, and its specific preparation process is as follows...

no. 2 example

[0066] Hereinafter, differences from the method for preparing an air-purifying material of the first embodiment will be mainly described, and redundant descriptions of the same parts as those of the method for preparing an air-purifying material of the first embodiment will be omitted.

[0067] Such as Figure 4 As shown, in the method for preparing an air purification material according to the second embodiment of the present invention, a step s103 is further included, and the step s103 softens the obtained macroporous resin loaded with manganese oxide.

[0068] As mentioned above, the macroporous resin loaded with manganese oxide prepared according to the method described in the first embodiment is in the form of particles. The granular state limits its range of use. Specifically, in many cases, the resulting formaldehyde-decomposing material needs to be compliant so that it can be formed into various shapes. For example, in the case where formaldehyde needs to be removed ...

no. 3 example

[0084] Hereinafter, the differences from the methods of preparing the air-purifying material of the first and second embodiments will be mainly described, and redundant descriptions of the same parts as those of the methods of preparing the air-purifying material of the first and second embodiments will be omitted.

[0085] Since the boiling point of formaldehyde is -19.5 degrees Celsius, formaldehyde exists in the air in gaseous form at room temperature. On the other hand, formaldehyde is very soluble in water, so most of the formaldehyde in the air exists in the form of combining with water molecules. In view of this, formaldehyde dissolved in water in the air can be decomposed by increasing the affinity of the air purification material with water. In fact, most formaldehyde in the air exists in the form of being dissolved in water, and decomposing formaldehyde dissolved in water can greatly improve the decomposition effect of formaldehyde.

[0086]Specifically, in this exe...

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Abstract

The invention discloses an air purification material and a preparation method thereof. The method includes: step 1: preparing a material capable of decomposing formaldehyde; step 2: preparing macroporous resin, i.e. preparing an initiator; and adding an oil phase into the initiator, wherein the oil phase is prepared by mixing a monomer, a cross-linking agent, a pore-foaming agent and a dispersantand then subjecting the mixture to ultrasonic dispersion uniformly; step 3: adding the material capable of decomposing formaldehyde into the oil phase, and conducting water bath heating to 75DEG C, and maintaining the state for 5h; and step 4: conducting cooling and constant temperature drying, thus obtaining the air purification material.

Description

technical field [0001] The invention relates to the field of air purification, in particular to an air purification material capable of decomposing formaldehyde in the air and a preparation method thereof. Background technique [0002] Formaldehyde, as a harmful gas that can endanger human health, has attracted more and more attention. Recent studies have shown that manganese oxides such as manganese dioxide, as a material capable of decomposing formaldehyde in the air at room temperature, are expected to be used to remove formaldehyde in specific spaces (such as rooms). [0003] However, since manganese oxides such as manganese dioxide are in a fine powder state, it is difficult to apply them in actively ventilated air purification systems. The traditional method of loading on alumina, titanium dioxide, granular activated carbon and other substrates has large wind resistance, low loading rate and powder falling. [0004] On the other hand, the boiling point of formaldehyd...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/86B01D53/72C08F212/08C08F212/36C08F2/44C08K3/22
CPCC08F212/08C08F2/44C08K3/22C08K2003/2262B01D53/04B01J20/28085B01J20/267B01J20/28011B01D2253/102C08F212/36
Inventor 赵飞赵冶蔡顺昕郭陈飞何成龙
Owner SHENZHEN ZHONGQING TECH CO LTD
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