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

Multifunctional filtering material and preparation method thereof

A filter material and multi-functional technology, applied in the direction of filtration separation, membrane filter, separation method, etc., can solve the problems of limited antibacterial effect of non-woven fabrics, insufficient antibacterial effect, complicated preparation process, etc., to achieve excellent adsorption, preparation The method is simple and the filtering effect is good

Active Publication Date: 2020-02-21
DONGGUAN YIMAO FILTER MEDIA
View PDF22 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation process of the nano-carbon fiber composite layer in the non-woven fabric is complicated, but it only has a certain adsorption effect on the peculiar smell in the air, and the adsorption effect on harmful gases such as formaldehyde is not mentioned; at the same time, the polyester fiber in the non-woven fabric The layer is made of blended fiber and nano-silver antibacterial cotton fiber, the cost is high, and the antibacterial effect is not obvious enough, so the antibacterial effect of the whole non-woven fabric is limited

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
  • Multifunctional filtering material and preparation method thereof
  • Multifunctional filtering material and preparation method thereof
  • Multifunctional filtering material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0030] The invention provides a kind of preparation method of multifunctional filter material, comprises the steps:

[0031] S1, prepare the support layer non-woven fabric, and carry out antibacterial treatment to it;

[0032] S2, after superimposing the upper surface of the filter layer non-woven fabric and the lower surface of the protective layer non-woven fabric, perform ultrasonic compounding; S3, unwind the support layer non-woven fabric after the antibacterial treatment, and place it on the support layer non-woven fabric Spray hot melt adhesive evenly on the upper surface of the upper surface, then evenly sprinkle activated carbon particles on the upper surface of the support layer non-woven fabric sprayed with hot melt adhesive, and then evenly spray hot melt adhesive on the upper surface of the activated carbon particles;

[0033] S4. Superimpose the lower surface of the non-woven fabric of the filter layer on the upper surface of the activated carbon particles spraye...

Embodiment 1

[0046] The present embodiment provides a kind of preparation method of multifunctional filter material, comprises the following steps:

[0047] S1. Add the mixed solution of 10mL silver nitrate (30mmol / L) and 15mL copper nitrate (40mmol / L) into 30mL carboxymethyl chitosan aqueous solution (50mmol / L), and adjust the pH value to 6, sonicate at room temperature Oscillate for 1 hour to prepare an antibacterial finishing solution. At this time, the molar ratio of silver nitrate, copper nitrate and carboxymethyl chitosan in the antibacterial finishing solution is 1:2:5, and silver nitrate, copper nitrate and carboxymethyl chitosan The total mass of the total mass accounts for 1.7% of the total mass of the antibacterial finishing solution; the grammage obtained by the acupuncture method is 70g / m 2 1. The polypropylene needle-punched non-woven fabric with a thickness of 0.4mm is used as the support layer non-woven fabric, which is immersed in the prepared antibacterial finishing solut...

Embodiment 2～8 and comparative example 1～4

[0067] Embodiment 2~8 and comparative example 1~4 provide a kind of preparation method of multifunctional filter material respectively, compared with embodiment 1, difference is that the pH value of antibacterial finishing liquid and the ratio of each raw material are changed, each The pH value of the antibacterial finishing solution corresponding to the embodiment and the comparative example and the molar ratio of silver nitrate, copper nitrate and carboxymethyl chitosan in the antibacterial finishing solution and their percentages in the antibacterial finishing solution are shown in Table 4.

[0068] The pH value of antibacterial finishing solution and the ratio of each raw material in table 4 embodiment 2~8 and comparative example 1~4

[0069]

[0070] The antibacterial and antiviral effects of the multifunctional filter materials prepared in Examples 2-8 and Comparative Examples 1-4 were tested, and the results are shown in Table 5.

[0071] The bacteriostasis rate and ...

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
The average particle sizeaaaaaaaaaa
Gram weightaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a multifunctional filtering material and a preparation method thereof. According to the method, a supporting layer non-woven fabric is subjected to antibacterial treatment by preparing an antibacterial finishing liquid containing silver nitrate, copper nitrate and carboxymethyl chitosan; and the supporting layer non-woven fabric subjected to antibacterial treatment, an active carbon layer, a filtering layer non-woven fabric and a protection layer non-woven fabric are stacked layer by layer and compounded to prepare a multifunctional filtering material capable of comprehensively filtering solid pollutants, gaseous pollutants and microbial pollutants. According to the invention, by adopting the technical scheme, the multifunctional filtering material can achieve efficient antibacterial and long-acting antibacterial effects; by adjusting the gram weight and the thickness of each layer of the material and the related process parameters of the multifunctional filtering material, the comprehensive optimal filtering effect is achieved; and the preparation method is simple, the product structure is reasonable, and the application range is wide.

Description

technical field [0001] The invention relates to the field of air filter materials, in particular to a multifunctional filter material and a preparation method thereof. Background technique [0002] With the continuous development of society and the acceleration of industrialization, the problem of air pollution is becoming more and more serious. The fine particles, harmful gases and various bacteria, viruses and other microorganisms in the air are seriously threatening people's health. higher requirement. Among all kinds of air filter materials, non-woven fabrics have been widely used due to their simple production process, low cost, and good filterability. However, due to the single effect of traditional non-woven fabrics, it is difficult to filter out solid particles, harmful gases and microorganisms in the air at the same time, and the filtering effect is limited, which has gradually failed to meet people's requirements. Therefore, it is necessary to perform multi-effec...

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): B01D39/14B01D39/16B32B27/02B32B27/32B32B27/36B32B9/02B32B9/04B32B9/00
CPCB01D39/14B01D39/16B32B5/022B32B5/26B32B5/30B32B5/16B32B5/24B01D2239/0442B32B2262/0276B32B2262/0253B32B2262/062B32B2264/108
Inventor 吴龙涛陈利军宋宝祥王亚飞刘双全
Owner DONGGUAN YIMAO FILTER MEDIA
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