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Composite anti-microbial air filtration material, preparation method and application

An air filter material and composite antibacterial technology, applied in the field of air filter materials, can solve the problems of difficult industrialization of electrospinning, difficulty in forming large-scale products, and high cost

Active Publication Date: 2015-08-05
上海展恒环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The above studies all use electrospinning to improve the filtration efficiency, but the pressure drop also increases, making it difficult to achieve high efficiency and low pressure drop.
Moreover, the industrialization of electrospinning is difficult, and it is difficult to form large-scale products
Even if there are products out, the cost is higher

Method used

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  • Composite anti-microbial air filtration material, preparation method and application
  • Composite anti-microbial air filtration material, preparation method and application
  • Composite anti-microbial air filtration material, preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] The polypropylene pellets were added to the melt electrospinning equipment for electrospinning, and the nylon woven cloth with a mesh number of 250 was used as the receiving substrate, and the thickness of the electrospun film was 10 μm.

[0053] Dissolve chitosan in 10% acetic acid solution, the concentration is 5%, spray on the upper and lower surfaces of the composite electrospun membrane, the amount is 20ml / m2; the nano TiO 2 The photocatalyst is dispersed in water with a concentration of 0.05%, and is sprayed on the upper and lower surfaces of the composite electrospun membrane in an amount of 25ml / m2.

[0054] 15g / m 2 The melt-blown polypropylene electret non-woven fabric is covered on the surface of the electrospun membrane.

[0055] The 150-mesh nylon weave is arranged in front of the electret non-woven fabric as a curtain to prevent haze.

[0056] The filtration test adopts the GB2626-2006 test standard, the equipment adopts the TSI8130 filter material tester...

Embodiment 2

[0058] Dissolve polyacrylonitrile in N,N-dimethylacetamide at a concentration of 6%, and spin it with a solution electrospinning machine, and the receiving substrate is 30g / m 2 Polypropylene melt-blown non-woven fabric with an electrospun film thickness of 3 μm.

[0059] Dissolve chitosan in 3% acetic acid solution, the concentration is 3%, spray on the upper and lower surfaces of the composite electrospun membrane, the amount is 10ml / m 2 ; Nano-TiO 2 The photocatalyst is dispersed in water, the concentration is 0.02%, sprayed on the upper and lower surfaces of the composite electrospun membrane, the amount is 15ml / m 2 .

[0060] 25g / m 2 The melt-blown polypropylene electret non-woven fabric is covered on the surface of the electrospun membrane.

[0061] The filtration test adopts the GB2626-2006 test standard, the equipment adopts the TSI8130 filter material tester, the aerosol used in the test is NaCl, the mass median particle size is 0.26 μm, and the number median parti...

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Abstract

The invention provides a composite anti-microbial air filtration material. An electrets fabric layer, an electrostatic spinning fiber membrane layer, chitosan and nano TiO2 photocatalyst are combined, thus PM2.5 is effectively removed, and meanwhile, the filtration material has anti-microbial, disinfection and odor removal functions; further, the filtration material is applied to the filtering material fields of window cloths and screen window to replace natural air instead of diffusion air; meanwhile, the filtration material is applied to fields of air-conditioners, air purifiers and masks, thus comprehensive purification of indoor air and breathing air of people is realized. In addition, the invention further provides a preparation method and application of the composite anti-microbial air filtration material.

Description

technical field [0001] The invention relates to the technical field of air filter materials, in particular to a composite antibacterial air filter material, a preparation method and an application thereof. Background technique [0002] At present, China's air pollution situation is severe. According to the Urban Air Quality Daily released by the Ministry of Environmental Protection in January this year, the top 10 cities with the highest API (Air Pollution Index) pollution index are: Shijiazhuang, Handan, Baoding, Tangshan, Tianjin, Zhengzhou, Jinan, Qinhuangdao, Jining, Urumqi and Wuhan (tied). There are two forms of air pollution recognized by the American Lung Association (ALA) as the most harmful to humans, which include: (1) gaseous pollutants, such as ozone, smog, volatile organic compounds (VOC), etc.; (2) Particulate pollution such as smoke and dust. [0003] The above rankings do not include PM2.5 and ozone pollution indices. Particle pollutants occupy a place i...

Claims

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Application Information

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IPC IPC(8): B01D39/14B01D50/00B01D53/86F24F13/28A47H23/08E06B9/52
Inventor 张秀芳李虎敏赵铭吴明华方渡飞马洪洋
Owner 上海展恒环保科技有限公司
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