Preparation method of antibacterial nanofiber air filtering material

Abstract

The invention provides a preparation method of an antibacterial nanofiber air filtering material. The preparation method comprises the following specific steps: (S1) preparing sericin powder and polyoxyethylene powder; (S2) dissolving the sericin powder in deionized water to form a sericin solution of different mass fraction; (S3) dissolving the polyoxyethylene powder in deionized water to form a polyoxyethylene solution of different mass fraction; (S4) mixing the sericin solution with the polyoxyethylene solution to form a spinning solution of different concentration; (S5) providing a base material, a primary filtering layer material I and a primary filtering layer material II; (S6) performing electrostatic spinning on the lower surface of the base material by an electrostatic spinning device to form a layer of nanofiber membrane I; (S7) performing electrostatic spinning on the upper surface of the base material by the electrostatic spinning device to form a layer of nanofiber membrane II; (S8) compounding the primary filtering layer material I on the surface of the nanofiber membrane I; (S9) compounding the primary filtering layer material II on the surface of the nanofiber membrane II: and (S10) drying and standing to obtain a finished product.

Description

technical field [0001] The invention belongs to the technical field of air purification, and relates to a preparation method of an antibacterial nanofiber air filter material. Background technique [0002] In recent years, my country has suffered from continuous smog weather, the number of provinces and cities affected has continued to increase, and the number of heavily polluted areas has also continued to increase. According to reports, there are many reasons for the large-scale and long-lasting smog weather in China, but the most important and direct reasons are two: one is the meteorological conditions for the formation of smog, and the other is the artificial formation of smog. reason. Man-made reasons mainly include the following: First, the large-scale use of fossil dyes in factories, thermal power plants and chemical plants with coal combustion as the main energy structure will produce a lot of particulate matter; Gold, mechanical and electrical manufacturing, as w...

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Problems solved by technology

Second, a large amount of motor vehicle exhaust emissions will also produce a large amount of particulate matter, which has buried hidden dangers for the generation of haze weather

For example, Chinese patent document CN201610212835.2 discloses an electrospun nanofiber air filter material and its preparation method. The air filter material prepared by this method can only effectively filter particles, dust and impurities, and the micropores are easy to filter during the early stage. Blocked, poor air permeability, and secondly, its own antibacterial performance is not obvious. When applied to an air filter device, the function is single, and other purification methods need to be added as an auxiliary, resulting in increased energy consumption; when applied to a mask, it is directly in contact with the human body. Mouth-nose contact, antibacterial performance and comfort performance are weak, which can easily cause discomfort to the human body, so the existing air filter materials cannot meet the requirements of use

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