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Carbon tube reinforced polyacrylonitrile/nylon 6 complex fiber for air filtration

A technology of polyacrylonitrile fiber and composite fiber, which is used in filtration and separation, textiles and papermaking, non-woven fabrics, etc., can solve problems such as interference with the normal operation of equipment, threats, air pollution, life and health, etc.

Active Publication Date: 2018-11-13
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

The invention provides a carbon tube reinforced polyacrylonitrile / nylon 6 complex fiber for air filtration. The complex fiber is prepared by the following method: a carbon nano tube modified polyaniline fiber layer is formed on a substrate; a polyacrylonitrile fiber layer is formed on the carbon nano tube modified polyaniline fiber layer; a nylon 6 fiber layer is formed on the polyacrylonitrile fiber layer; a polyethylene oxide fiber layer is formed on the nylon 6 fiber layer. For overcoming the defects of existing non-woven fiber materials, the novel carbon tube reinforced fiber material is provided, carbon tubes are doped in the fiber layer, the carbon tubes in the fiber can increase the surface area in the fiber, accordingly the contact area between air and the fiber material is increased, and the filtering material is higher in filtering efficiency. In addition, due to the added carbon tubes, the pores among the fiber are larger, and meanwhile the filtering resistance of the filtering material can 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 Applications(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