PM2.5 air filter element and preparation method thereof

Abstract

The invention discloses a PM2.5 air filter element and a preparation method thereof, and relates to the field of air purification. The PM2.5 air filter element comprises a filter element body and a PM2.5 capturing agent sprayed and coated on the filter element body, wherein the PM2.5 capturing agent uses water-soluble neutral or weak alkaline amino acid, polypeptide or low-molecular-weight protein as main raw materials; hydrophilic polymers and salt are used as the assistance; surfactants and polyamino compound are compounded for preparation. The dust can be effectively filtered; the capturing effect on organic harmful substances and sol type PM2.5 is obvious; the air purification effect is good; the cost is low; the filter element replacement or cleaning operation is simple. The PM2.5 air filter element can be widely applied to equipment such as an automobile air filter element or air purifier; the practical values are high.

Description

technical field [0001] The invention belongs to the field of air purification and relates to a PM2.5 air filter element and a preparation method thereof. Background technique [0002] PM2.5 is a pollutant that currently affects people's lives, especially in the northern regions, where there are often reports of PM2.5 bursting. The main components of PM2.5 are organic carbon compounds, sulfates, nitrates, ammonium salts, and elements such as sodium, magnesium, calcium, aluminum, iron, lead, zinc, arsenic, and cadmium. In addition to natural processes such as natural processes, mainly human emissions, such as the burning of fossil fuels (such as coal, petroleum products), the burning of biomass (crop straw, forest fires, etc.), garbage incineration, etc., as well as dust in industrial production, road pollution, etc. dust, construction site dust, kitchen fumes, etc. In addition, some emitted gas pollutants will also be transformed into PM2.5 in the air, such as sulfur dioxid...

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Problems solved by technology

[0003] At present, the most commonly used method for the above-mentioned PM2.5 pollution is filtration, such as protection through masks, filter elements of air purifiers, etc., but simple filtration methods have certain limitations, and are generally only effective for small inorganic solid particles. Organic PM2.5 is not effective; German Trittec anti-dust screens use special materials to generate static electricity when the wind blows through the screens, which can attract some PM2.5 particles, but it is as good as air to electrically neutral PM2.5 The treatment effect of sol is poor; in addition, the method of using water curtain to separate windows can also filter PM2.5, but the elimination efficiency is not high, and the air permeability is not good, which affects its popularization and use

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