Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Filter element for preventing PM2.5 particulate matter, mask and preparing method for filter element

A PM2.5 and particulate matter technology, applied in the field of sanitary products, can solve the problems of high production cost, decreased strength, and inability to effectively filter pathogenic bacteria, and achieve the effect of low production cost and simple method.

Inactive Publication Date: 2018-04-13
TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
View PDF6 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the particles are too small, general conventional masks will not work. For example, masks with activated carbon filters and medical masks cannot prevent PM2.5
In the utility model patent with the authorized announcement number CN203389241U, the filter element made of polytetrafluoroethylene takes a long time, the production cost is high, the adsorption effect of PM2.5 is not obvious, and the pathogenic bacteria carried by PM2.5 cannot be effectively filtered
In the utility model patent with the authorized notification number CN203898978U, cellulose acetate, which is the filter material of cigarette filters, is used as the filter element, but cellulose acetate is easy to get wet, and its strength will decrease after being soaked.

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
  • Filter element for preventing PM2.5 particulate matter, mask and preparing method for filter element
  • Filter element for preventing PM2.5 particulate matter, mask and preparing method for filter element
  • Filter element for preventing PM2.5 particulate matter, mask and preparing method for filter element

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Preparation of bacterial cellulose membrane:

[0043] (1) Selected strains: Gluconacetobacter xylinum, which can secrete bacterial cellulose, was selected as the model strain. Firstly, strain activation: inoculate the Gluconacetobacter xylinum CGMCC No.2955 preserved in the glycerol tube onto the solid plate medium by streaking, put it in a constant temperature incubator at 30°C, and culture it for 2 days to obtain a single colony. A single colony was picked and transferred to the seed liquid culture medium, and cultured with shaking at 30° C. and 180 rpm for 20 h to obtain the seed liquid. Then the seed liquid is transferred to the culture medium to make the initial fermentation liquid containing the active strain.

[0044] (2) Aerobic fermentation: the initial fermentation liquid containing active bacterial strains is placed in a culture tank, and cultured statically, a bacterial cellulose film will be produced at the gas-liquid interface. After the fermentation, th...

Embodiment 2

[0059] Preparation of bacterial cellulose antibacterial film:

[0060] (1) Selected strains: Gluconacetobacter xylinum, which can secrete bacterial cellulose, was selected as the model strain. Firstly, strain activation: inoculate the Gluconacetobacter xylinum CGMCC No.2955 preserved in the glycerol tube onto the solid plate medium by streaking, put it in a constant temperature incubator at 30°C, and culture it for 2 days to obtain a single colony. A single colony was picked and transferred to the seed liquid culture medium, and cultured with shaking at 30° C. and 180 rpm for 20 h to obtain the seed liquid. Then the seed liquid is transferred to the culture medium to make the initial fermentation liquid containing the active strain.

[0061] (2) Aerobic fermentation: put the initial fermentation broth containing active strains into a culture tank with a fermentation medium layer height of 30 mm, and place the connected culture containers in a constant temperature incubator at...

Embodiment 3

[0067] Preparation of filter elements to prevent PM2.5 particulate matter:

[0068] (1) Selected strains: Gluconacetobacter xylinum, which can secrete bacterial cellulose, was selected as the model strain. Firstly, strain activation: inoculate the Gluconacetobacter xylinum CGMCC No.2955 preserved in the glycerol tube onto the solid plate medium by streaking, put it in a constant temperature incubator at 30°C, and culture it for 2 days to obtain a single colony. A single colony was picked and transferred to the seed liquid culture medium, and cultured with shaking at 30° C. and 180 rpm for 20 h to obtain the seed liquid. Then the seed liquid is transferred to the culture medium to make the initial fermentation liquid containing the active strain.

[0069] (2) Aerobic fermentation: Put the initial fermentation broth containing active strains into a culture tank with a fermentation medium layer height of 30 mm, and place the connected culture containers in a constant temperature...

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

PropertyMeasurementUnit
Bottom diameteraaaaaaaaaa
Diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to the field of hygienic products and the technical field of bioengineering, in particular to a filter element for preventing PM2.5 particulate matter, a mask and a preparing method for the filter element. The filter element comprises a bacterial cellulose antibacterial membrane, the bacterial cellulose antibacterial membrane is prepared in the mode that a bacterial cellulosemembrane and an antibacterial agent are combined, the water resistance is good, the PM2.5 particulate matter can be effectively adsorbed and filtered, and meanwhile the filter element has the good sterilization and antibacterial effects. The bacterial cellulose membrane is soaked in a 0.4 g / L-1 g / L of polylysine solution, taken out, dried and shaped, and then the filter element is obtained; the preparing method for the filter element is low in production cost and simple in method; the filter element prepared with the method can be applied to production of the anti-haze mask.

Description

technical field [0001] The invention relates to the field of sanitary products, in particular to a filter element for preventing PM2.5 particles, a mask containing the filter element, and a preparation method of the filter element. Background technique [0002] In recent years, with the rapid development of industry, air pollution has become increasingly serious, and smog has become the focus of people's attention. The core of smog lies in PM2.5, PM2.5, also known as fine particulate matter, refers to particulate matter in the ambient air with an aerodynamic equivalent diameter less than or equal to 2.5 μm. It can be suspended in the air for a long time, and the higher its concentration in the air, the more serious the air pollution. Compared with atmospheric particulate matter, PM2.5 has small particle size, large area, strong activity, easy to attach toxic and harmful substances (such as heavy metals, microorganisms, etc.), and has a long residence time in the atmosphere ...

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
IPC IPC(8): A41D13/11
CPCA41D13/1192
Inventor 贾士儒孙忠岩钟成李思琦侯颖谢燕燕
Owner TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com