Method for preparing antibacterial air-filtering membrane

An air filtration and antibacterial agent technology, applied in the field of filter material preparation, can solve the problems of incomplete retention of bacteria, long service life of filters, inability to kill germs, etc., and achieves low equipment requirements, long-term antibacterial ability and cost low cost effect

Inactive Publication Date: 2012-01-04
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional non-woven fabrics cannot completely trap such bacteria, and the trapped germs are usually unable to kill them
In addition, the filter usually has a long service life, and bacteria may grow and multiply on the upper surface of the filter, causing s

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Dissolve 10 parts by weight of polyvinyl alcohol in 100 parts by weight of water, add 0.1 part by weight of surfactant sodium dodecyl sulfonate, add 1 part by weight of surface-modified nano-silver with a particle size of 20 nanometers after the dissolution is complete, and disperse evenly. , spun into a non-woven fabric structure by electrospinning, gram weight 1g / m 2 , the fiber diameter is 200 nm.

Embodiment 2

[0027] Dissolve 5 parts by weight of polyvinyl alcohol in 100 parts by weight of water, add 0.1 part by weight of surfactant sodium dodecyl sulfonate, add 1 part by weight of surface-modified nano-zinc oxide with a particle size of 5 nanometers after the dissolution is complete, and disperse evenly After that, it was spun into a non-woven fabric structure by electrospinning, with a gram weight of 0.1g / m2 2 , the fiber diameter is 50 nm.

Embodiment 3

[0029] Dissolve 10 parts by weight of polyethylene glycol in 100 parts by weight of water, add 0.05 part by weight of the surfactant sodium dodecyl sulfonate, add 5 parts by weight of copper nitrate after the dissolution is complete, and after uniform dispersion, spin it by electrospinning. Non-woven structure, gram weight 5g / m 2 , the fiber diameter is 400 nm.

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Abstract

The invention relates to a method for preparing an antibacterial air-filtering membrane. The method comprises the following steps of: co-mixing and dissolving an antibacterial agent, a polymer, an addition agent and a solvent and obtaining a stable co-mixed solution; or obtaining a uniform fusant through fusing and co-mixing the antibacterial agent and the polymer; and then weaving nanofibers of the co-mixed solution or the fusant on the surface of a non-woven fabric through electrostatic spinning and obtaining the antibacterial air-filtering membrane. The preparation method provided by the invention has the advantages of simplicity, low cost, low requirement for equipment and suitability for scale production; and the product prepared by the method has good long-term antibacterial capability and can be applied to closed spaces with concentrated personnel, such as hospitals, stations and the like and can also be applied to places with lower requirements, such as ordinary families and the like.

Description

technical field [0001] The invention belongs to the field of preparation of filter materials, in particular to a preparation method of an antibacterial air filter membrane. Background technique [0002] The world's filter material industry is developing very fast. Because of its excellent filtering performance, non-woven fabrics are more and more widely used in metallurgy, machinery, electronics, pharmaceuticals, medicine, environmental protection, mining, building materials and other fields. According to reports, in 2007, the world filtration and separation products market reached 37.3 billion US dollars, of which air filtration was 5.5 billion, and air purification devices accounted for more than half of it, and it is still growing rapidly. This process has been facilitated by increasing demands on water and air quality. [0003] The most common air filtration membranes on the market today are mainly manufactured by traditional nonwoven processes such as meltblown or spun...

Claims

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Application Information

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IPC IPC(8): B01D39/00B01D46/54
Inventor 俞昊朱树琦石玉元杨锐孙宾朱美芳钟佳佳
Owner DONGHUA UNIV
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