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Filtering material with antibacterial function and preparation method thereof

A filter material and functional technology, which is applied in the field of filter material with antibacterial function and its preparation, can solve the problems of low filtration efficiency, large resistance pressure drop, and poor antibacterial performance, and achieve high filtration efficiency, large resistance pressure drop, and enhanced The effect of antimicrobial properties

Active Publication Date: 2017-05-10
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the problems of low filtration efficiency, large resistance pressure drop and poor antibacterial performance of existing air filter materials, and provide a filter material with antibacterial function and its preparation method

Method used

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  • Filtering material with antibacterial function and preparation method thereof
  • Filtering material with antibacterial function and preparation method thereof
  • Filtering material with antibacterial function and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] like figure 1 As shown, the filter material with antibacterial function in this embodiment is composed of a substrate 11 and a nanofiber membrane arranged on the substrate 11. The nanofiber membrane includes hierarchical units, and each hierarchical unit includes nanofibers 14 The planar layer 12 formed by disorderly aggregation and the cavity structure 13 formed by directional arrangement and stacking of nanofibers 14 arranged on the planar layer 12, part of the cavity structure 13 is filled with substances 15 with antibacterial function, and the nanofibers 14 It is also doped with substances 15 that have antibacterial properties. The nanofibrous membrane also includes a planar layer 12 composed of randomly assembled nanofibers, and the planar layer 12 is arranged on the uppermost hierarchical unit.

[0044] The grammage of substrate 11 is 10g / m 2 , the material is polyvinyl chloride, it is mesh-shaped, and the mesh size is 1mm 2 . . The porosity of the nanofiber ...

Embodiment 2

[0052] like figure 1 As shown, the filter material with antibacterial function in this embodiment is composed of a substrate 11 and a nanofiber membrane arranged on the substrate 11. The nanofiber membrane includes hierarchical units, and each hierarchical unit includes nanofibers 14 The planar layer 12 formed by disorderly aggregation and the cavity structure 13 formed by directional arrangement and stacking of nanofibers 14 arranged on the planar layer 12, part of the cavity structure 13 is filled with substances 15 with antibacterial function, and the nanofibers 14 It is also doped with substances 15 that have antibacterial properties. The nanofibrous membrane also includes a planar layer 12 composed of randomly assembled nanofibers, and the planar layer 12 is arranged on the uppermost hierarchical unit.

[0053] Substrate 11 gram weight is 20g / m 2 , the material is metal, mesh shape, the mesh size is 1mm 2 . The porosity of the nanofiber membrane is 99.9%, the average ...

Embodiment 3

[0062] like figure 1 As shown, the filter material with antibacterial function in this embodiment is composed of a substrate 11 and a nanofiber membrane arranged on the substrate 11. The nanofiber membrane includes hierarchical units, and each hierarchical unit includes nanofibers 14 The planar layer 12 formed by disorderly aggregation and the cavity structure 13 formed by directional arrangement and stacking of nanofibers 14 arranged on the planar layer 12, part of the cavity structure 13 is filled with substances 15 with antibacterial function, and the nanofibers 14 It is also doped with substances 15 that have antibacterial properties. The nanofibrous membrane also includes a planar layer 12 composed of randomly assembled nanofibers, and the planar layer 12 is arranged on the uppermost hierarchical unit.

[0063] Substrate weight is 40g / m 2 , the material is polypropylene, mesh shape, the mesh size is 1mm 2 . . The porosity of the nanofiber membrane is 99%, the average...

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Abstract

The invention provides a filtering material with an antibacterial function and a preparation method thereof. The filtering material is characterized by comprising a base material and a nanofiber membrane arranged on the base material. The nanofiber membrane comprises at least one hierarchy unit, wherein each hierarchy unit comprises a plane layer disorderly aggregated by nanofibers and a cavity structure piled by directionally-arranged nanofibers, part of or all the cavity structure is filled with antibacterial substances, and the nano fibers are doped with antibacterial substances. The filtering material is high in filtering efficiency, large in resistance pressure drop, good in antibacterial performance, promising in application prospect in aspect of filtering materials for air purifiers, window screens and masks, and the like.

Description

technical field [0001] The invention belongs to the field of air filtration, in particular to a filter material with antibacterial function and a preparation method thereof. Background technique [0002] Microorganisms such as particles and bacteria in smog pose a great threat to human health. The problem of smog pollution has caused about 3 million premature deaths worldwide. It is imminent to take effective measures to protect it. The filter material with antibacterial function can remove bacteria and other microorganisms in the surrounding air, so as to effectively protect human health. The existing antibacterial filter materials all have the problems of low filtration efficiency, large resistance pressure drop, and poor antibacterial effect, and cannot meet the requirements of use at the same time. Due to the characteristics of small fiber diameter, small pore size, large specific surface area, and high porosity, electrospun nanofibers can be used in the field of air fi...

Claims

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Application Information

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IPC IPC(8): B01D46/00B01D39/14B01D39/16B01D39/20
CPCB01D39/14B01D39/1669B01D39/2051B01D39/2068B01D46/0028B01D2239/0442B01D2239/10B01D2279/65
Inventor 丁彬赵兴雷李玉瑶华婷廖亚龙蒋攀印霞孙刚俞建勇
Owner DONGHUA UNIV
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