Polyurethane foam air-purification filter screen and preparation method thereof

A polyurethane foam and air purification technology, applied in chemical instruments and methods, separation methods, dispersed particle filtration, etc., can solve the pollution problems of secondary pollution of the environment, small amount of purification materials, limited adsorption capacity, etc. High purification efficiency and small wind resistance

Inactive Publication Date: 2016-07-27
NINGBO TAIAN NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the amount of purification material loaded on the surface of honeycomb ceramics is relatively small, and the amount of purification treatment is relatively small, and the powdered purification material connected by a single load is easy to fall off, causing inconvenience in use
Another example is that the publication date is March 30, 2011, and the publication number is CN101998973A Chinese patent, which discloses a method for manufacturing a polyurethane foam base material for a filter with adsorption properties. The method includes the formation of polyurethane foam. One-shot molding of a formulation comprising isocyanate and polyester or polyether, catalyst, silicone oil and water, particles of the adsorbent material are directly included in the foam-forming formulation without any surface pretreatment, and the filter material obtained can be It is used in air conditioning and ventilation systems for water and air purification, ion exchange, deodorization, drying, blocking public harmful substances, or separation and purification; but on the one hand, activated carbon is used as an added purification material in this product, which can Adsorbs organic pollutants such as trace formaldehyde to achieve the purpose of air purification. However, its adsorption capacity is limited and it is easy to be saturated, and if it is not treated in time after adsorption saturation, formaldehyde will be released back, which not only cannot completely solve the pollution problem but also easily causes secondary pollution to the environment. Pollution; on the other hand, the purification particles are dispersed in polyurethane foam, in which the granular purification material has a limited specific surface area and a limited area in contact with the air, so that the purification area is not large and the purification efficiency is not high
[0005] Also do not have a kind of structural design reasonable at present, synthesis process is simple, load is firm, specific surface area is big, purification efficiency is high, wind resistance is little, easy to use and wide application range polyurethane foam air purification filter screen and preparation method thereof

Method used

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  • Polyurethane foam air-purification filter screen and preparation method thereof
  • Polyurethane foam air-purification filter screen and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0029] see Figure 1 to Figure 2 , choose a mold with a length, width and height of 320×320×10mm, and evenly smear a layer of stearic acid on its wall, and heat it to 40°C and keep it warm for use. 100g of polyoxypropylene polyol, 0.05g of organotin, 2g of silicone oil and 20g of titanium dioxide were uniformly mixed to obtain doped material A for use. Prepare 45g of toluene diisocyanate as material B for use. The air purification material powder adopts nano-scale catalyst material. In the process of polyurethane foam preparation, the nano-scale purification material is fully mixed with the raw materials for polyurethane foam preparation, and the polyurethane foam air containing nano-purification material is obtained in one step during the preparation of polyurethane foam. Purification filter sheet. The nano-scale air purification material is selected, which has the characteristics of large specific surface area and lively surface properties. It can provide more reactive sit...

Embodiment 2

[0033] see Figure 1 to Figure 2 , choose a mold with a length, width and height of 320×320×10mm, and evenly spread a layer of silicone grease on its wall, and heat it to 45°C and keep it warm for use. 100g of polyoxypropylene polyol, 0.2g of tertiary amine, 1g of silicone oil, 10g of aluminum hydroxide and 30g of manganese dioxide were evenly mixed to obtain doped material A for use. Prepare 50g of toluene diisocyanate as material B for later use. The air purification material powder adopts nano-scale catalyst material. In the process of polyurethane foam preparation, the nano-scale purification material is fully mixed with the raw materials for polyurethane foam preparation, and the polyurethane foam air containing nano-purification material is obtained in one step during the preparation of polyurethane foam. Purification filter sheet. The nano-scale air purification material is selected, which has the characteristics of large specific surface area and lively surface prope...

Embodiment 3

[0037] see Figure 1 to Figure 2 , choose a mold with a length, width and height of 320×320×10mm, and evenly spread a layer of silicone grease on its wall, and heat it to 45°C and keep it warm for use. 100g of polyolefin polyol and 50g of manganese dioxide powder were evenly mixed to obtain doped material A for use. 50g of diphenylmethane diisocyanate, 20g of alcohol amine, 2g of monocarbodiimide and 8g of zinc oxide were mixed and stirred uniformly to obtain material B for use. The air purification material powder adopts nano-scale catalyst material. In the process of polyurethane foam preparation, the nano-scale purification material is fully mixed with the raw materials for polyurethane foam preparation, and the polyurethane foam air containing nano-purification material is obtained in one step during the preparation of polyurethane foam. Purification filter sheet. The nano-scale air purification material is selected, which has the characteristics of large specific surfac...

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Abstract

The invention relates to a polyurethane foam air-purification filter screen and a preparation method thereof. Polyurethane foam air-purification filter screen with simple synthetic process, firm loading, large specific surface area and high purifying efficiency and the preparation method thereof do not exist in the market at present. The polyurethane foam air-purification filter screen provided by the invention comprises air-purification material powder and is characterized by further comprising polyurethane foam, wherein the air-purification material powder is uniformly fixed in the polyurethane foam. The preparation method provided by the invention comprises the following steps: mixing material A, material B and the air-purification material powder, and then quickly and uniformly stirring and waiting for foaming; at the beginning of foaming trend, putting into a mold, foaming and forming; curing for 3-48 hours, thereby acquiring the polyurethane foam air-purification filter screen with the air-purification material powder uniformly distributed in the polyurethane foam, wherein the material A is used for preparing the polyurethane foam and the material B is polyisocyanate. The polyurethane foam air-purification filter screen has the advantages of simple synthetic process, firm load, large specific surface area, high purification efficiency and small wind resistance.

Description

technical field [0001] The invention relates to an air purification filter screen and a preparation method thereof, in particular to a polyurethane foam air purification filter screen and a preparation method thereof, belonging to the technical field of environmental protection. Background technique [0002] With the current development of science and technology and the popularity of interior decoration, the problem of air pollution is becoming more and more prominent, especially the content of volatile harmful gas pollutants is gradually increasing, which seriously threatens human health. Air purifier products to deal with this problem are also becoming more and more popular. Among the air purifying products, the purifying filter element plays a role in effectively removing these pollutants in the air. In the process of air purification, through the contact reaction between the filter element and the air, the volatile harmful pollutants are removed to achieve the purpose of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/86B01D46/30C08G18/76C08G18/62C08K3/22C08K3/04C08K3/26
CPCB01D46/30B01D53/86C08G18/48C08G18/62C08G18/7614C08G18/7671C08K3/04C08K3/22C08K3/26C08K2003/2227C08K2003/2241C08K2003/2262C08K2003/265C08K2201/011C08G2110/0083
Inventor 黄建国王康
Owner NINGBO TAIAN NEW MATERIAL TECH CO LTD
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