Composite nano antibacterial air filtering membrane

Abstract

The invention discloses a composite nano antibacterial air filtering membrane which comprises an aggregate base layer, a sticking and spraying layer and a nanofiber membrane layer which are sequentially arranged, the aggregate base layer is gum dipping wood pulp paper or polyester non-woven fabric, the sticking and spraying layer is a polyolefin material and is stuck and sprayed on the aggregate base layer, and the nanofiber membrane layer and the aggregate base layer are bonded together through hot pressing of the sticking and spraying layer; the nanofiber membrane layer is of a three-dimensional net-shaped structure which is formed by superfine fibers with the diameter of 300-500nm and is prepared from a high polymer material through an electrostatic spinning process; an antibacterial agent is added into an electrostatic spinning solution used for preparing the nanofiber membrane layer, and the antibacterial agent is added into the electrostatic spinning solution according to the proportion of 0.1%-1%. The composite nano antibacterial air filtering membrane has the performance of efficient filtration and low resistance, has certain antibacterial and bacteriostatic ability, can realize air blowback self-cleaning, can be repeatedly used, is a novel air filter material, and has a wide application prospect.

Description

technical field [0001] The invention relates to the technical field of air filter materials, in particular to a composite nanometer antibacterial air filter membrane. Background technique [0002] With the increasing air pollution, people have higher and higher requirements for indoor air quality. The pollutants in indoor air mainly include bacteria, viruses, solid pollutants (such as dust, pollen, bacteria-carrying particles, etc.), gaseous pollutants (odor, formaldehyde and other decoration pollution) and so on. Air purifiers have a certain ability to remove solid pollutants and gaseous pollutants in indoor air. The filter materials used in existing air purifiers generally include: primary filter, which is the first layer of air purifier filtration. Adsorbs small dust particles and hair in the air; the pleated HEPA filter is made of very small glass fibers interwoven (air filter material similar to filter paper), usually a stack of sub-glass fibers that are continuously f...

AI Technical Summary

Problems solved by technology

In order to improve the filtering effect, the existing composite air filter membrane will increase its thickness, but at the same time it will also increase its resistance and reduce the air permeability, and the existing air filter membrane is generally used for one-time use, and a certain amount of adsorption and accumulation on the filter membrane Once the particles are removed, they need to be replaced, and the filter membrane cannot be reused. At the same time, the existing air generally only has filtering and adsorption functions, and does not have antibacterial properties.

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