Supercharge Your Innovation With Domain-Expert AI Agents!

A para-aramid nanofiber/polyphenylene sulfide non-woven composite filter material and preparation method thereof

A para-aramid fiber and nanofiber technology, which is applied in the field of composite filter material and its preparation, can solve the problems of high cost, complicated preparation process, and failure to improve the filtration efficiency of tiny particles, and achieve long service life, simple preparation process, and preparation method Simple and energy-saving effect

Active Publication Date: 2018-07-13
辽宁洁花环保科技装备有限公司
View PDF12 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The composite filter material of this invention is a single component. Although it is a composite of fiber net and short fiber, which improves the filtration efficiency of the composite filter material, it does not improve the filtration efficiency of tiny particles, and the preparation process is complicated and the cost is high.
[0005] It can be seen that in the existing technology, there is no PPS non-woven fabric with high filter material strength, good high temperature thermal stability, high air permeability, smooth surface, easy to clean dust, and high filtration accuracy for PM2.5 fine particles. Therefore, in the face of the increasingly serious problem of atmospheric haze caused by industrial development, it is urgent to develop a composite filter material with good performance, simple and energy-saving preparation methods, and ultra-high filtration efficiency for PM2.5 tiny particles

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

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0034] The preparation method refers to compounding para-aramid nanofibers and polyphenylene sulfide non-woven fabrics to obtain a composite filter material. The preparation method follows the steps below:

[0035] ① Suspension and dispersion of para-aramid nanofibers

[0036] Adding N-methylpyrrolidone to the aramid resin jelly body formed by the para-aramid polymerization reaction to swell the jelly body, and then stirring at a high speed to break the swollen aramid resin jelly body into granular colloidal particles. Adding a dispersant to the swollen aramid resin jelly body and stirring at a high speed for dispersion to obtain a uniform and stable para-aramid nanofiber suspension dispersion.

[0037] Wherein, the resin content of the aramid resin jelly is 15%~28%; the mass ratio of the aramid resin jelly to N-methylpyrrolidone is 1:0.2~3; the swelling aramid resin jelly and The mass ratio of the dispersant is 1:1~6; the diameter of the para-aramid nanofiber contained in th...

Embodiment 1

[0049] ① Suspension and dispersion of para-aramid nanofibers

[0050] Adding N-methylpyrrolidone to the aramid resin jelly body formed by the para-aramid polymerization reaction to swell the jelly body, and then stirring at a high speed to break the swollen aramid resin jelly body into granular colloidal particles. Adding water to the swollen aramid resin jelly body, stirring and dispersing at a high speed, obtains a uniform and stable para-aramid fiber nanofiber suspension dispersion.

[0051] Wherein, the resin content of the aramid resin jelly is 15%; the mass ratio of the aramid resin jelly to N-methylpyrrolidone is 1:0.2; the mass ratio of the aramid resin jelly to the dispersant The ratio is 1:1; the diameter of the para-aramid nanofiber contained in the suspension dispersion is 40nm, the fiber length is 10um, and the fiber mass percentage is 6%.

[0052] ② Composite treatment of para-aramid nanofibers and polyphenylene sulfide nonwovens

[0053] Spray the para-aramid ...

Embodiment 2

[0061] ① Suspension and dispersion of para-aramid nanofibers

[0062] Adding N-methylpyrrolidone to the aramid resin jelly body formed by the para-aramid polymerization reaction to swell the jelly body, and then stirring at a high speed to break the swollen aramid resin jelly body into granular colloidal particles. Adding water to the swollen aramid resin jelly body, stirring and dispersing at a high speed, obtains a uniform and stable para-aramid fiber nanofiber suspension dispersion.

[0063] Wherein, the resin content of the aramid resin jelly is 18%; the mass ratio of the aramid resin jelly to N-methylpyrrolidone is 1:1; the mass ratio of the aramid resin jelly to the dispersant The ratio is 1:2; the diameter of the para-aramid nanofiber contained in the suspension dispersion is 50nm, the fiber length is 20um, and the fiber mass percentage is 6%;

[0064] ② Composite treatment of para-aramid nanofibers and polyphenylene sulfide nonwovens

[0065] Immerse the polyphenylen...

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
diameteraaaaaaaaaa
lengthaaaaaaaaaa
Basis weightaaaaaaaaaa
Login to View More

Abstract

The invention relates to a composite filter material and a preparation method thereof, in particular to a para-aramid nanofiber / polyphenylene sulfide non-woven composite filter material and a preparation method thereof. The present invention aims at the deficiencies of the existing technology and products, overcomes the problem of low filtration efficiency of the existing conventional polyphenylene sulfide non-woven fabric filter material for tiny particles, and combines para-aramid nanofibers with polyphenylene sulfide needle-punched, spunlace Or the spunbonded non-woven fabric is compounded by spraying or dipping to obtain a gradient composite filter material. Compared with the existing polyphenylene sulfide needle-punched, spunlace or spunbonded non-woven fabric filter materials, the surface layer or interior of the composite filter material contains firmly bonded para-aramid nanofibers, and the filter material maintains good air permeability And high temperature resistance, the filtration rate of tiny particles is significantly improved, and the preparation method of the filter material is simple and energy-saving.

Description

technical field [0001] The invention relates to a composite filter material and a preparation method thereof, in particular to a para-aramid nanofiber / polyphenylene sulfide non-woven composite filter material and a preparation method thereof. Background technique [0002] Polyphenylene Sulfide (PPS) fiber is a new type of high-performance synthetic fiber, which has excellent thermal stability, chemical corrosion resistance, flame retardancy and other physical and chemical properties, and can work at higher temperatures and extremely harsh conditions. Long-term use in the environment, mainly used for thermal filter materials. In recent years, with the rapid development of industry, industrial pollution has become increasingly serious, which has endangered the natural environment and people's health. At present, the smog weather in most cities continues to be active, the concentration of suspended particulate matter in the atmosphere remains high, and the air quality is mostl...

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): D04H1/42D04H1/4282D04H1/70B01D39/16B01D46/00
Inventor 王罗新杨诗文庹星星殷先泽吴静陈少华王桦庹新林
Owner 辽宁洁花环保科技装备有限公司
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com