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Carbon Tube Reinforced Polyacrylonitrile/Nylon 6 Composite Fibers for Air Filtration

A technology of polyacrylonitrile fiber and polyacrylonitrile, which is applied in the direction of filtration and separation, textile and paper making, separation methods, etc., and can solve problems such as threats, air pollution, life and health, and interference with normal operation of equipment

Active Publication Date: 2020-10-23
杭州杭康医疗器械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Air pollution not only poses a huge threat to people's life and health, but also seriously interferes with the normal operation of equipment, and at the same time causes a certain degree of damage to the entire ecosystem

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The composite fiber is prepared by the following method: forming a carbon nanotube-modified polyaniline fiber layer on a substrate; forming a polyacrylonitrile fiber layer on the carbon nanotube-modified polyaniline fiber layer; forming a nylon fiber layer on the polyacrylonitrile fiber layer. 6 fiber layers; a polyethylene oxide fiber layer is formed on the nylon 6 fiber layer. Forming the polyaniline fiber layer modified by carbon nanotubes on the substrate is specifically: dissolving polyaniline in DMF to obtain polyaniline spinning solution, wherein the concentration of polyaniline is 1wt%; adding a concentration of 30 mL of hydrochloric acid solution of 0.01mol / L to obtain acidified polyaniline spinning solution; add carbon nanotubes to the acidified polyaniline spinning solution to obtain carbon nanotube modified polyaniline spinning solution, wherein, carbon nanotubes The concentration of the tubes is 4 wt %; the carbon nanotube-modified polyaniline fiber layer i...

Embodiment 2

[0019]The composite fiber is prepared by the following method: forming a carbon nanotube-modified polyaniline fiber layer on a substrate; forming a polyacrylonitrile fiber layer on the carbon nanotube-modified polyaniline fiber layer; forming a nylon fiber layer on the polyacrylonitrile fiber layer. 6 fiber layers; a polyethylene oxide fiber layer is formed on the nylon 6 fiber layer. Forming the polyaniline fiber layer modified by carbon nanotubes on the substrate is specifically: dissolving polyaniline in DMF to obtain polyaniline spinning solution, wherein the polyaniline concentration is 3wt%; adding a concentration of 40 mL of hydrochloric acid solution of 0.01mol / L to obtain acidified polyaniline spinning solution; add carbon nanotubes to the acidified polyaniline spinning solution to obtain carbon nanotube modified polyaniline spinning solution, wherein, carbon nanotubes The concentration of the tubes is 7wt%. The carbon nanotube-modified polyaniline fiber layer is form...

Embodiment 3

[0021] The composite fiber is prepared by the following method: forming a carbon nanotube-modified polyaniline fiber layer on a substrate; forming a polyacrylonitrile fiber layer on the carbon nanotube-modified polyaniline fiber layer; forming a nylon fiber layer on the polyacrylonitrile fiber layer. 6 fiber layers; a polyethylene oxide fiber layer is formed on the nylon 6 fiber layer. Forming the polyaniline fiber layer modified by carbon nanotubes on the substrate is specifically: dissolving polyaniline in DMF to obtain polyaniline spinning solution, wherein the concentration of polyaniline is 2wt%; adding a concentration of 35mL of hydrochloric acid solution of 0.01mol / L to obtain an acidified polyaniline spinning solution; carbon nanotubes were added to the acidified polyaniline spinning solution to obtain a polyaniline spinning solution modified by carbon nanotubes, wherein the carbon nanotubes The concentration of the tubes is 5 wt %; the polyaniline fiber layer modified...

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PUM

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Abstract

A carbon-tube-reinforced polyacrylonitrile / nylon 6 composite fiber for air filtration, wherein the composite fiber is prepared by the following method: forming a carbon-nano-tube-modified polyaniline fiber layer on a substrate; forming a polyacrylonitrile fiber layer on the carbon-nano-tube-modified polyaniline fiber layer; forming a nylon 6 fiber layer on the polyacrylonitrile fiber layer; and forming a polyethylene oxide fiber layer on the nylon 6 fiber layer. The method overcomes the defects of existing non-woven fiber materials. By doping carbon tubes in a fiber layer, the carbon tubes in the fiber layer can increase the surface area inside the fibers, thereby increasing the contact area of air and the fiber material, and making the filtration efficiency of a filtration material higher. Also, due to the addition of the carbon tubes, pores between the fibers become larger, so filtration resistance of the filtration material can also be effectively reduced.

Description

technical field [0001] The invention relates to the field of environmental protection materials, in particular to polyacrylonitrile / nylon 6 composite fibers reinforced by carbon tubes for air filtration. Background technique [0002] Particulate matter (PM) pollution in the air, especially the well-known PM2.5 and organisms such as bacteria and viruses carried by it, have a great impact on people's quality of life. Air pollution not only poses a huge threat to people's life and health, but also seriously interferes with the normal operation of equipment, and at the same time causes a certain degree of damage to the entire ecosystem. At present, many cities have disclosed the monitoring information about PM2.5 to citizens, and more and more people have begun to pay attention to the air pollution in their cities. Two years ago, PM2.5 data were only made public in the Beijing-Tianjin-Hebei region, the Yangtze River Delta, the Pearl River Delta, and other provincial capitals an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D04H1/4374D04H1/728B01D39/08
CPCB01D39/083D04H1/4374D04H1/728
Inventor 樊璠
Owner 杭州杭康医疗器械有限公司