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

A porous composite membrane, air purification technology, applied in the field of air purification, can solve the problems of air purification components pollution, body damage, inhalation of these particles will directly lead to respiratory diseases and other problems, to prevent reproduction, good bacteriostatic effect.

Active Publication Date: 2022-04-22
绍兴市上虞区武汉理工大学高等研究院
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of porous composite membrane for air purification and preparation method thereof
  • A kind of porous composite membrane for air purification and preparation method thereof
  • A kind of porous composite membrane for air purification and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Weigh 1kg of polyvinyl chloride, take 1L of methanol and 2L of dichloromethane, mix to obtain the first solvent, mix the polyvinyl chloride and the first solvent into the reactor, heat up to 55 ° C, heating and stirring for 2h to obtain a film-forming solution.

[0031] Weigh 1 kg of Na again 7 PMo 11 Mil 40, take 5 L of dichloromethane and mix Na 7 PMo 11 NiO 40 and dichloromethane to obtain an atmospheric liquid.

[0032] The nitrogen at 45 °C is then blown to the surface of the non-woven fabric through the atmosphere liquid, and the film-forming liquid is coated on the surface of the non-woven fabric, and the thickness of the coating does not exceed 1mm, and the solvent on the surface of the non-woven fabric is dried to obtain a composite film. Sectional plot structures such as Figure 1 as shown.

Embodiment 2

[0034] Weigh 1kg of polyvinyl chloride, take 1L of methanol and 2L of dichloromethane, mix to obtain the first solvent, mix the polyvinyl chloride and the first solvent into the reactor, heat up to 55 ° C, heating and stirring for 2h to obtain a film-forming solution.

[0035] Weigh 1 kg of Na again 7 PMo 11 NiO 40 , take 5 L of dichloromethane and mix Na 7 PMo 11 NiO 40 and dichloromethane to obtain an atmospheric liquid.

[0036] The nitrogen at 45 °C is then blown to the surface of the non-woven fabric through the atmosphere liquid, and the film-forming liquid is coated on the surface of the non-woven fabric, and the thickness of the coating does not exceed 1mm, and the solvent on the surface of the non-woven fabric is dried to obtain a composite film.

[0037] Weigh 1kg of polyisonitrile and 500mlDMF, mix and stir to dissolve to obtain a polyisonitrile solution, the polyisonitrile solution is coated on the surface of the polyvinyl chloride layer of the composite film, covered ...

Embodiment 3

[0039] Weigh 1kg of polyvinyl chloride, take 1L of methanol and 3L of trichloromethane, mix to obtain the first solvent, mix the polyvinyl chloride and the first solvent into the reactor, heat up to 58 ° C, heating and stirring for 2h to obtain a film-forming solution.

[0040] Weigh 1 kg of Na again 7 PMo 11 MnO 40 , take 6 L of trichloromethane and mix Na 7 PMo 11 MnO 40 and trichloromethane to get an atmospheric liquid.

[0041] The nitrogen at 48 °C is then blown to the surface of the non-woven fabric through the atmosphere liquid, and the film-forming liquid is coated on the surface of the non-woven fabric, the thickness of the coating does not exceed 1mm, and the solvent on the surface of the non-woven fabric is dried to obtain a composite film.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

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...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): B01D69/12B01D69/02B01D67/00
CPCB01D69/12B01D69/02B01D67/0002B01D2325/48
Inventor 郭玲琼徐飞飞范晓庆邱凤桃刘博
Owner 绍兴市上虞区武汉理工大学高等研究院
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap