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A filter screen with anti-oxidation properties

A technology of anti-oxidation performance and filter screen, which is applied in the direction of filtration separation, membrane filter, and dispersed particle filtration, etc., can solve the problems of aging, embrittlement and shedding, affecting service life and effect, and achieve good anti-aging damage performance

Active Publication Date: 2021-06-01
安吉润风空气净化科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In recent years, with the development of industry and the prosperity of the economy, the corresponding air pollution has become more and more serious, and the use of air purification devices such as air purifiers and fresh air purifiers has become more and more popular. The filter screen is a high-efficiency air filter, that is, HEPA, such as the high-efficiency filter screen disclosed on August 7, 2018 with the publication number CN108371854A, which has an efficient sterilization effect and has an efficient adsorption capacity for PM2.5 and formaldehyde. However, due to HEPA will age, embrittle and fall off after a period of use, affecting its service life and effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A filter screen with anti-oxidation performance is composed of a filter screen substrate and an anti-oxidation layer (including a first functional layer and a second functional layer coated on the filter screen substrate in sequence). The filter base is made of pp filter paper, grade H13. The first functional layer is coated with deacetylated chitin solution, and the thickness of the deacetylated chitin coating is 0.2mm. The second functional layer is coated with a mixture of nano-silicon dioxide and nano-manganese dioxide. Coating was carried out, and the coating thickness was 0.3 mm. The mass ratio of deacetylated chitin to nano-silica and nano-manganese dioxide mixture is 1:1, the mass ratio of nano-silica to nano-manganese dioxide is 1:1, nano-silica is VK-sp15, and nano-manganese dioxide is The silicon particle size is 15 nm, and the nano-manganese dioxide particle size is 30-50 nm. The composite filter is made into a wave shape and is used in air purifiers, fresh ...

Embodiment 2

[0035] A filter with anti-oxidation performance, comprising a filter base and an anti-oxidation coating; the anti-oxidation coating is coated on the surface of the filter base, the filter base is made of PET, and the anti-oxidation coating has a first function layer and a second functional layer, the first functional layer is coated with a chitosan solution with a thickness of 0.05 nm, and the mass concentration of the chitosan solution is 45%. The coating solution of the second functional layer includes nano-silicon dioxide, nano-manganese dioxide, and starch-based plastics, and the coating thickness is 0.95 nm. The particle size of nano-silica is 450-500 nm, and the mass concentration is 25%; the particle size of nano-manganese dioxide is 100-150 nm, and the mass concentration is 20%. In the coating solution, nano-silica and nano-manganese dioxide , The mass ratio of starch-based plastics is 2:1:0.5.

Embodiment 3

[0037] A filter with anti-oxidation performance, comprising a filter base and an anti-oxidation coating; the anti-oxidation coating is coated on the surface of the filter base, the filter base is made of PET, and the anti-oxidation coating has a first function layer and a second functional layer, the first functional layer is coated with a chitosan solution with a thickness of 0.1nm, and the mass concentration of the chitosan solution is 10%. The coating solution of the second functional layer includes nano-silicon dioxide, nano-manganese dioxide, and starch-based plastics, and the coating thickness is 0.2 nm. The particle size of nano-silica is 50-100 nm, and the mass concentration is 30%; the particle size of nano-manganese dioxide is 350-400 nm, and the mass concentration is 10%. In the coating solution, nano-silica and nano-manganese dioxide , The mass ratio of starch-based plastics is 1:1:0.5.

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Abstract

The invention relates to the field of materials, and relates to a filter screen with anti-oxidation performance, which includes a filter screen substrate and an anti-oxidation coating; the anti-oxidation coating is coated on the surface of the filter screen substrate, and the anti-oxidation coating is sequentially arranged Composed of the first functional layer and the second functional layer on the filter base, the first functional layer is coated with a deacetylated chitin solution, and the main component of the coating solution of the second functional layer is nano-silica and nano manganese dioxide, the thickness of the anti-oxidation coating is 0.01~0.5 mm. The filter screen provided by the invention has good anti-aging damage performance, waterproof, sterilizing, and purifying NO 2 and O 3 .

Description

technical field [0001] The invention relates to the field of materials, and belongs to the technical field of environmental protection material equipment, in particular to a filter screen with anti-oxidation performance. Background technique [0002] In recent years, with the development of industry and the prosperity of the economy, the corresponding air pollution has become more and more serious, and the use of air purification devices such as air purifiers and fresh air purifiers has become more and more popular. The filter screen is a high-efficiency air filter, that is, HEPA, such as the high-efficiency filter screen disclosed on August 7, 2018 with the publication number CN108371854A, which has an efficient sterilization effect and has an efficient adsorption capacity for PM2.5 and formaldehyde. However, due to HEPA will age, embrittle and fall off after a period of use, affecting its service life and effect. [0003] The chemical properties of silicon dioxide are rel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D39/14B01D46/00
CPCB01D39/14B01D46/0027B01D46/0028B01D2239/0442B01D2239/0471B01D2239/1291
Inventor 姚水良张红峰李国建陆海全余辉军
Owner 安吉润风空气净化科技有限公司