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Preparation method of filter material with formaldehyde removal function

A formaldehyde removal and filter material technology, applied in the field of functional filter material preparation, can solve the problems that formaldehyde molecules cannot be removed, bacteria are introduced, and the air purification quality is affected, so as to achieve a good removal effect, increase acidity, and reduce the effect of glossy appearance. Effect

Pending Publication Date: 2021-02-09
绍兴蓝竹新材料科技有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional PP filter paper, glass fiber, composite PP-PET filter paper, melt-blown polyester non-woven fabric and melt-blown glass fiber are used to make filter devices, which can only filter particles and dust, but cannot remove formaldehyde molecules in the air. Dust particles will bring bacteria, viruses, etc., and affect the quality of air purification. If a purification coating is introduced on the surface of the filter material, it is necessary to solve the problems of coating firmness and coating appearance.

Method used

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  • Preparation method of filter material with formaldehyde removal function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Follow the steps below to prepare a filter material with formaldehyde removal function:

[0018] 1) Preparation of filter material treatment agent: firstly weigh and mix the following raw materials in parts by mass to prepare a powder: 40 parts of water-soluble hydroxycellulose, 20 parts of blueberry leaf polyphenols, 8 parts of sodium alginate, and 6 parts of sodium citrate , 30 parts of polyvinyl acetate, 0.5 parts of sodium dodecyl sulfonate, 50 parts of nano-alumina;

[0019] Then weigh and mix the following raw materials in parts by mass to prepare a liquid preparation: 20 parts of acetic acid, 10 parts of ethanol, 50 parts of nano-silica colloid, and 5 parts of distilled water; mix the powder and liquid preparation at a mass ratio of 10:1 Stirring is configured as a filter material treatment agent;

[0020] 2) Preparation of formaldehyde photocatalytic decomposing agent: Weigh the following raw materials in parts by mass and mix them to prepare formaldehyde photo...

Embodiment 2

[0023] Follow the steps below to prepare a filter material with formaldehyde removal function:

[0024] 1) Preparation of filter material treatment agent: First, weigh the following raw materials in parts by mass and mix them to prepare a powder: 30 parts of water-soluble hydroxycellulose, 20 parts of blueberry leaf polyphenols, 8 parts of sodium alginate, and 3 parts of sodium citrate , 15 parts of polyvinyl acetate, 0.5 part of sodium dodecyl sulfonate, 50 parts of nano-alumina;

[0025] Then weigh and mix the following raw materials in parts by mass to prepare a liquid preparation: 20 parts of acetic acid, 10 parts of ethanol, 30 parts of nano-silica colloid, and 3 parts of distilled water; mix the powder and liquid preparation at a mass ratio of 3:1 Stirring is configured as a filter material treatment agent;

[0026] 2) Preparation of formaldehyde photocatalytic decomposing agent: Weigh the following raw materials in parts by mass and mix them to prepare formaldehyde pho...

Embodiment 3

[0029] Follow the steps below to prepare a filter material with formaldehyde removal function:

[0030] 1) Preparation of filter material treatment agent: First, weigh the following raw materials in parts by mass and mix them to prepare a powder: 20 parts of water-soluble hydroxycellulose, 15 parts of blueberry leaf polyphenols, 8 parts of sodium alginate, and 6 parts of sodium citrate , 15 parts of polyvinyl acetate, 0.5 part of sodium dodecyl sulfonate, 50 parts of nano-alumina;

[0031] Then the following raw materials were weighed and mixed in parts by mass to prepare a liquid preparation: 20 parts of acetic acid, 10 parts of ethanol, 30 parts of nano-silica colloid, and 5 parts of distilled water; the powder and the liquid preparation were mixed according to a mass ratio of 3:1 Stirring is configured as a filter material treatment agent;

[0032] 2) Preparation of formaldehyde photocatalytic decomposing agent: Weigh the following raw materials in parts by mass and mix th...

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Abstract

The invention discloses a preparation method of a filter material with a formaldehyde removal function. The preparation method comprises the following steps of: 1) preparing a filter material treatingagent; 2) preparing a formaldehyde photocatalytic decomposition agent; and 3) uniformly coating the surface of a filter material with the filter material treating agent prepared in the step 1); According to the preparation method of the invention, the problem of poor formaldehyde removal effect in the prior art is solved, polyvinyl acetate is used as a remover and undergoes condensation polymerization with formaldehyde after being subjected to alcoholysis, and therefore, rapid removal of the formaldehyde is realized; and part of polyvinyl alcohol obtained after alcoholysis is polymerized andcross-linked with hydroxycellulose and silica sol, and therefore, the fastness of a coating is improved, and a good removal effect is achieved. A polyvinyl acetate isolation acid catalyst can be protected through the hydroxy cellulose and nano silica gel.

Description

technical field [0001] The invention belongs to the technical field of preparation of functional filter materials, and in particular relates to a method for preparing a filter material with formaldehyde removal function. Background technique [0002] Formaldehyde is a colorless gas with a pungent odor, easily soluble in water, alcohol and ether. Formaldehyde has a wide range of uses in industry. It is often used in textiles, dyes, leather, resins, paints, plastics, rubber, pharmaceuticals, explosives, etc. Therefore, formaldehyde pollution mainly comes from the above products. The harm of formaldehyde to the human body is mainly manifested in the following aspects: formaldehyde can combine with the protein in the protoplasm of somatic cells, change the internal structure of the protein and solidify, so it has biocidal power. At low concentrations, it initially irritates the mucous membranes of the eyes, and at high concentrations, it irritates the upper respiratory tract,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/14B01D53/86B01D53/72B01D46/00
CPCB01D39/14B01D46/0001B01D46/0027B01D53/8668B01D2239/0407B01D2255/20707B01D2255/20792B01D2255/70B01D2257/704B01D2258/06
Inventor 单兴刚聂凯王刚强章金芳王鑫宇陈淑君冯华峰斯文婷潘小丹朱玫琦张欣雨谢诗毓陶埼波
Owner 绍兴蓝竹新材料科技有限公司
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