Antibacterial reusable air purification filter net and preparation method thereof

An air purification and filter technology, applied in the field of air purification, can solve the problems of indoor air secondary pollution, short service life, affecting the use effect of consumers, etc., to prevent the penetration of particles, reduce costs, and solve indoor secondary pollution problem effect

Inactive Publication Date: 2019-05-17
惠州德赛信息科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the long-term use of the existing purification filter, a large amount of dust or bacteria are adsorbed on it, because the material used is PP melt-blown non-woven fabric or PP needle-punched non-bacterial fabric, which generally does not have antibacterial properties. Extremely non-woven fabrics, etc., which cause the dust or bacteria it absorbs to multiply and cause secondary pollution of indoor air, and the service life of PP melt-blown non-woven fabrics or PP needle-punched electret non-woven fabrics is relatively short, which affects consumers. The effect of using

Method used

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  • Antibacterial reusable air purification filter net and preparation method thereof
  • Antibacterial reusable air purification filter net and preparation method thereof

Examples

Experimental program
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Embodiment 1

[0024] An antibacterial reusable air purification filter such as figure 1 Shown: including non-woven fiber support layer 1, filter layer 2, antibacterial layer 3 and cover layer 4, non-woven fiber support layer 1, filter layer 2, antibacterial layer 3 and cover layer 4 are hot-pressed and laminated sequentially from bottom to top; The filter layer 2 includes a PTFE filter membrane, and the antibacterial layer 3 includes a chitosan antibacterial nanofiber membrane.

[0025] In the present invention, the pore diameter of the PTFE filter membrane is 0.18 μm-0.22 μm, preferably, the pore diameter of the PTFE filter membrane is 0.20 μm, and the porosity of the PTFE filter membrane is greater than or equal to 89%. When particulate pollutants pass through the PTFE filter membrane, Particles with a particle size smaller than the pore size of the PTFE filter membrane pass through the PTFE filter membrane; particles with a particle size larger than the pore size of the PTFE filter membr...

Embodiment 2

[0029] A preparation method for an antibacterial and reusable air purification filter screen, comprising the steps of:

[0030] Preparation of PTFE filter membrane: Mix the dried PTFE powder and organic polar solution and extrude PTFE strips, calender the PTFE strips into PTFE membranes, and heat, stretch, shape and cut the PTFE membranes and winding to obtain a PTFE filter membrane.

[0031] The specific steps of preparing the PTFE filter membrane are as follows: fully dry the PTFE fine powder in an oven, fully mix the dried PTFE powder with the organic polar solution, and then enter the extruder to extrude, thereby extruding the PTFE strip, and then The PTFE strip is calendered into a membrane under a rolling machine, heated to volatilize the organic polar solution, then stretched vertically and horizontally, and then heat-treated to shape, cut and wind to obtain a biaxially stretched PTFE filter membrane. The pore diameter of the prepared PTFE filter membrane is 0.18 μm-0....

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Abstract

The invention relates to an antibacterial reusable air purification filter net and a preparation method thereof. The antibacterial reusable air purification filter net comprises a non-woven fiber supporting layer, a filter layer, an antibacterial layer and a covering layer which are sequentially hot-pressed and composited from bottom to top; the filter layer comprises a PTFE filter film; and the antibacterial layer comprises a chitosan antibacterial nanofiber membrane. Chitosan adopted by the antibacterial layer in the air purification filter net is a deacetylation product of chitin, is natural biopolymer linear polysaccharide, and is a rare positively-charged high-molecular polymer in nature, thus the situation that secondary pollution is caused by mass propagation of microorganisms adsorbed on the air purification filter net can be prevented, meanwhile, the air purification filter net can be washed through a detergent or washing powder without any reduction in performance, and thus the problem that a traditional filter net adsorbs dust for a long time, or bacteria breed, and consequently indoor secondary pollution is caused is completely solved.

Description

technical field [0001] The invention relates to the technical field of air purification, in particular to an antibacterial and reusable air purification filter and a preparation method thereof. Background technique [0002] With the development of modern industry, the problem of air quality degradation has become more and more prominent. In order to ensure the quality of indoor air, a variety of targeted air filtration and purification products have been produced on the market, including electrostatic adsorption type and physical mechanical filter type. , where the mechanical filter type purification filter is the core component of the air purification product. However, during the long-term use of the existing purification filter, a large amount of dust or bacteria are adsorbed on it, because the material used is PP melt-blown non-woven fabric or PP needle-punched non-bacterial which generally does not have antibacterial properties. Extremely non-woven fabrics, etc., which ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D46/00B01D46/54B01D39/16
Inventor 李锦珍钟晨刘耀义邵益勤赵军董成磊张晖张忠叶林
Owner 惠州德赛信息科技有限公司
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