A kind of porous composite membrane for air purification and preparation method thereof

Abstract

The present invention proposes a porous composite membrane for air purification and a preparation method thereof. The preparation method comprises: mixing polyvinyl chloride and a first solvent and putting it into a reaction kettle; 3h, to obtain the film-forming liquid, mix and stir the polyoxometalate and the second solvent evenly to obtain the atmosphere liquid, use nitrogen as the carrier gas, blow the steam of the atmosphere liquid to the surface of the base film, and simultaneously apply the film-forming liquid evenly Cover the surface of the base membrane, and obtain a porous composite membrane after the solvent is dried. The porous composite membrane prepared by the above method can inhibit the microorganisms in the air, prevent them from continuing to multiply on the surface of the membrane, and produce harmful substances to affect the air quality, thereby improving the effect of air purification.

Description

Technical field [0001] The present invention relates to the field of air purification technology, in particular to a porous composite membrane for air purification and a preparation method thereof. Background [0002] Air is the most basic substance for people to survive, the quality of air quality directly affects people's physical health, with the intensification of air pollution, people's demand for air purification is also getting higher and higher. [0003] At present, the most troublesome air pollutants are inhalable particulate matter and fine particulate matter, these substances float in the air is difficult to settle, and inhalation of these particles will directly lead to respiratory diseases, some particulate matter will even enter the human circulation system, causing serious physical damage, so the current air purification device mostly uses the way of gas-solid separation to filter the air, filter out floating particles, so as to achieve the purpose of purifying th...

AI Technical Summary

Problems solved by technology

[0003] At present, the air pollutants that plague people most are inhalable particles and fine particles. These substances float in the air and are difficult to settle. Inhaling these particles will directly cause respiratory diseases, and some particles will even enter the human circulatory system, causing serious physical damage. Therefore, the current air purification devices mostly use the method of gas-solid separation to filter the air to filter out floating particles, so as to achieve the purpose of purifying the air. However, in addition to particles, there are various microorganisms floating in the air. Although these microorganisms also It can be filtered out by some porous membranes, but microorganisms can still survive on the porous membranes full of impurities, and the spores or reproductive tissues produced by them can still pass through the porous membranes. If the filtered pollutants are not cleaned up in time, the air purification components will instead Become a Pollution Spreader

[0004] However, frequent cleaning will reduce the user experience, so there is an urgent need for a porous composite membrane that can read and filter out microorganisms for killing

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