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High-temperature-resistant melt-blown polypropylene compound electret air filtration material and preparation method thereof

An air filter material, melt-blown polypropylene technology, applied in the direction of filtration separation, membrane filter, separation method, etc., can solve the problems of insufficient removal of fine particles, secondary pollution, and easy breeding of harmful microorganisms in filter materials, etc., to achieve excellence Effects of filtration efficiency, reduction of filtration resistance, and excellent filtration performance

Inactive Publication Date: 2017-01-04
中安丰磊环境科技股份有限公司
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

Ordinary air filter materials are not thorough enough to remove fine particles, and harmful microorganisms are easy to breed on the filter materials, and there is a possibility of secondary pollution

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] A high-temperature-resistant melt-blown polypropylene composite electret air filter material consists of the following raw material components in parts by weight: polypropylene 55, silicon monoxide 10, powdered activated carbon 15, 3-aminopropyltriethoxysilane Coupling agent 4, glacial acetic acid 1.5, appropriate amount of deionized water, low density polyethylene wax 2, antioxidant 1010 1.5, titanate coupling agent 1, silicon dioxide 6, boric acid 3, barium oxide 3.

[0028] Specific steps are as follows:

[0029] (1) Preparation of silicon nanowires:

[0030] ①. Place the small porcelain boat containing silicon monoxide powder horizontally in the middle of the alumina tube, then place the tube in a high-temperature tube furnace, vacuumize at 100Pa, and then raise the temperature to 200 and 900°C respectively Keep warm for 60 minutes, then heat up to 1200°C for 4 hours;

[0031] ②. Afterwards, cool down to 600°C at a rate of 2°C / min and keep it warm for 30 minutes. ...

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Abstract

The invention discloses a high-temperature-resistant melt-blown polypropylene compound electret air filtration material. The high-temperature-resistant melt-blown polypropylene compound electret air filtration material is prepared from, by weight, 50-60 parts of polypropylene, 9-13 parts of silicon monoxide, 12-17 parts of powdery activated carbon, 2-6 parts of 3-aminopropyl triethoxy silane coupling agent, 0.5-2 parts of glacial acetic acid, a proper amount of deionized water, 1-3 parts of low-density polyethylene wax, 0.8-1.7 parts of antioxidant 1010, 0.7-1.3 parts of titanate coupling agent, 4-7 parts of silicon dioxide, 2-4 parts of boric acid and 1-4 parts of barium oxide. Silicon nanowires containing alpha-quartz are prepared and are added to the melt-blown polypropylene compound electret material, the material has excellent filtration efficiency and further has an obvious bacterial reproduction inhibiting function. The activated carbon supported silicon nanowires treated by the silane coupling agent are used, the silicon nanowire supporting capability of activated carbon is improved, and the adsorption capability of the filtration material to the harmful substances in the air is improved effectively.

Description

technical field [0001] The invention belongs to the field of air filtration, and in particular relates to a high-temperature-resistant melt-blown polypropylene composite electret air filter material and a preparation method thereof. [0002] technical background [0003] With the progress of the times, people's requirements for environmental quality are getting higher and higher. However, the rapid economic development has aggravated the pollution of the environment, and the dust, chemicals, and harmful microorganisms in the air have had adverse effects on people's health. Therefore, effective control of harmful substances in the air is a major problem to be solved. The application of air filters and filter materials is an important means of purifying the air. Ordinary air filter materials are not thorough enough to remove fine particles, and harmful microorganisms are easy to breed on the filter materials, and there is a possibility of secondary pollution. Electret air fi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/14B01D53/02
CPCB01D39/14B01D53/02B01D2239/0407B01D2239/0435B01D2239/0442B01D2239/10
Inventor 谢爱兵
Owner 中安丰磊环境科技股份有限公司
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