Degradable antibacterial nanofiber non-woven fabric composite filter material and preparation method thereof

Abstract

The invention discloses a degradable antibacterial nanofiber non-woven fabric composite filter material. The material comprises a three-layer structure, wherein the first layer in a windward directionis a nanofiber filter layer, the second layer is a nano-material antibacterial layer, and the third layer is a substrate layer. The invention also provides the preparation method of the degradable antibacterial nanofiber non-woven fabric composite filter material. The preparation method comprises the following steps o: coating the substrate layer with a layer of adhesive; coating antibacterial microspheres on the substrate layer by adopting an electrostatic spraying process to form a nano-material antibacterial layer; preparing a nanofiber filter layer on the nano-material antibacterial layerby adopting an electrostatic spinning process; and carrying out hot rolling compounding on the composite material. According to the degradable antibacterial nanofiber non-woven fabric composite filter material and the preparation method thereof of the invention, the filtering resistance can be reduced while efficient filtering is ensured, the antibacterial effect reaches 99% or above, and all thematerials are green and degradable environment-friendly materials.

Description

Technical field[0001]The present invention relates to a method of preparing a nanofiber nonwoven fabric composite filter material and a preparation method thereof, in particular a degradable antibacterial nanofiber nonwoven composite filter material.Background technique[0002]Air is a necessary condition for humanity, but with the development of the economy, industrial production and urban life is increasingly serious, causing more and more attention. It is not only filtration for PM2.5 particulate matter, but also filtration for bacteria and viruses. At present, air filter materials on the market have mainly glass fiber, polyacrylonitrile fiber, polyester fiber, PTFE film, etc., although there is a higher filtering efficiency, but the air resistance is extremely unfavorable to energy saving, and the cycle is short and cannot be used. Reuse, no antibacterial, antiviral properties, cannot face increasingly serious environmental pollution problems. Secondly, too much abandoned filters ...

AI Technical Summary

Problems solved by technology

At present, the air filter materials on the market mainly include glass fiber, polyacrylonitrile fiber, polyester fiber, PTFE membrane, etc. Although these materials have high filtration efficiency, the large air resistance is not conducive to energy saving, and the service life is short and cannot be used. Repeated use, does not have antibacterial and antiviral properties, and cannot face the increasingly serious environmental pollution problem

Secondly, too much waste filter material has caused great environmental pressure because it cannot be degraded naturally.

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