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Durable and anti-ageing polypropylene electret air filtering material and preparation method thereof

An air filtration material, polypropylene technology, applied in chemical instruments and methods, filtration separation, membrane filters, etc., can solve the problems of insufficient removal of small particles, secondary pollution, and easy breeding of harmful microorganisms in filter materials, and achieve excellent results. The effect of filtration efficiency, reducing filtration resistance, good anti-aging 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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  • Claims
  • 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

[0028] A durable anti-aging polypropylene electret air filter material, consisting of the following raw material components in parts by weight: polypropylene 55, silicon monoxide 12, powdered activated carbon 13, 3-aminopropyltriethoxysilane coupling agent 4 , Glacial acetic acid 0.9, appropriate amount of deionized water, low density polyethylene wax 2, antioxidant 1010 1.5, titanate coupling agent 1, ultraviolet absorber 0.4, light stabilizer 0.6.

[0029] Specific steps are as follows:

[0030] (1) Preparation of silicon nanowires:

[0031] 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;

[0032] ②. Afterwards, cool down to 600°C at a rate of 2°C / min and keep it warm for 30 minutes. At the same time, blow air...

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PUM

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Abstract

The invention discloses a durable and anti-ageing polypropylene electret air filtering material. The durable and anti-ageing polypropylene electret air filtering material is prepared from the following raw material components in parts by weight: 50-60 parts of polypropylene, 9-13 parts of silicon monoxide, 10-15 parts of powdered active carbon, 2-5 parts of 3-aminopropyltriethoxysilane coupling agent, 0.5-1.3 parts of glacial acetic acid, a proper amount of de-ionized water, 1-3 part of low density polyethylene wax, 0.5-2 parts of an antioxidant 1010, 0.8-1.5 part of a titanate coupling agent, 0.2-0.6 part of an ultraviolet absorbent and 0.4-0.8 part of a light stabilizer. According to the durable and anti-ageing polypropylene electret air filtering material, a silicon nano-wire containing alpha-quartz is prepared and is added into a melt-blown polypropylene electret material, so that the material has extremely high electret charge stability and excellent filtering efficiency; the active carbon is used for loading the silicon nano-wire treated by the titanate coupling agent, so that the loading amount of the silicon nano-wire on the active carbon is improved; the adsorption of harmful substances in the air by the filtering material is effectively improved.

Description

technical field [0001] The invention belongs to the field of air filtration, and in particular relates to a durable anti-aging polypropylene 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 filter materials provide the po...

Claims

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Application Information

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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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