Electroactive air filtering material and preparation method thereof

Abstract

The invention relates to the technical field of air filtering materials, and in particular, relates to an electroactive air filtering material and a preparation method thereof. The air filtering material comprises a polymer fiber filtering base material, a layer of oxidizing material is sputtered on one surface of the polymer fiber filtering base material, and a layer of reducing material is sputtered on the other surface of the polymer fiber filtering base material. A preparation method of the air filtering material comprises the following steps: (1) drying the filtering base material in a drying box; (2) placing the filter base material obtained in the step (1) in a vacuum chamber, and sputtering a layer of oxidation material on one surface of the filter base material to obtain a filterbase material containing an oxidation material layer on one surface; and (3) placing the filtering base material obtained in the step (2) in a vacuum chamber, and sputtering a layer of reducing material on the other surface of the filtering base material to obtain the electroactive air filtering material. The air filtering material prepared by the method has a filtering effect on bacteria, virusesand the like and also has quite strong sterilization, virus killing and antibacterial functions.

Description

technical field [0001] The invention relates to the technical field of air filter materials, in particular to an electroactive air filter material and a preparation method thereof. Background technique [0002] With the progress of the times, people's requirements for environmental quality are getting higher and higher. However, the rapid development of the economy has aggravated the pollution of the environment, and the dust particles, chemical substances, and harmful microorganisms in the air have had adverse effects on human health. Therefore, effective control of harmful substances in the air is a major problem to be solved. The application of air filters and filter materials is an important means of purifying the air. Ordinary air filter materials are not thorough enough to remove fine particles, and the filter materials are prone to breed harmful microorganisms, which may cause secondary pollution. [0003] At present, fiber filter materials mainly rely on mechanica...

AI Technical Summary

Problems solved by technology

Although the air filter made by it has certain bactericidal and antibacterial effects, it still has the following disadvantages: first, metals are prone to chemical reactions in the air, such as metal silver, although silver does not react with oxygen, but due to air There is a small amount of O in 3 , can oxidize silver to AgO, the surface becomes dark

It uses copper (aluminum) mesh base material, which belongs to the metal rigid base material, and has the following disadvantages: First, after long-term use of the metal base material, the moisture generated by breathing is easy to make it rust, resulting in poor air permeability

Secondly, in the actual application environment of smog, the air contains both water molecules and smog particles, and the humidity in the air is as high as 80-90%. The moisture in the air and the water vapor produced by breathing adhere to the copper mesh substrate, affecting Friction / piezoelectricity generates electrical stimulation, which affects the sterilization and antibacterial effects, which is not conducive to use in haze environments and high humidity environments

Third, it is composed of multi-layer electrodes, the process is complicated, the weight is heavy, and the flexibility, fit and comfort are not good