Nanometer fiber filter material and preparation method thereof

A nanofiber, filter material technology, applied in the field of nanofiber filter material and its preparation, can solve problems such as damage to the body and life

Inactive Publication Date: 2015-11-11
SHANGHAI TANLON FIBER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] As people pay more and more attention to the environment, we found that the PM10 (particulate matter with a diameter less than or equal to 10 microns in the atmosphere) index used to judge whether the dust content in industrial flue gas meets the standard can...

Method used

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  • Nanometer fiber filter material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033]Use PSA fiber as the surface fiber material, put it into the mixing box, open it through the opener and feed it into the carding machine. The fiber web obtained after full carding is passed through the cross-winding equipment, so that the short fiber web is transformed into a cross-laminated multi-layer fiber layer, and 120gsm100% PTFE base cloth is placed in the two layers of the above-mentioned multi-layer fiber layer, and the above structure is processed by Qingdao Textile After pre-punching and strengthening with the machine needle loom, the pre-punching structure is double-sided needling according to the main needling density of 750 needles / min to obtain a 550gsm filter substrate. After the above-mentioned filter felt is singed, it is cut into rolls with a width of 55 cm according to the designed width. Dissolve polyphenylsulfone terephthalamide in DMAC solvent at a concentration of 50%, and add the solute into the electrospinning device after the solute is comple...

Embodiment 2

[0035] Using glass fiber filament spinning, according to the weight of 350gsm, according to the design width of 55cm, weave glass fiber woven fabric with twill weave as the filter substrate, and install it on the electrospinning equipment. Dissolve polyphenylsulfone terephthalamide in DMAC solvent with a concentration of 50%. After the solute is completely dissolved, add it to the electrospinning equipment. According to the weight of 5gsm, open 6 spinning nozzles at a speed of 0.43m / min After the nanofiber layer is formed on the glass fiber woven fabric filter substrate, the nanofiber layer is closely combined with the filter substrate through a hot rolling process to form the filter material of Example 2.

Embodiment 3

[0037] Using 2D×51mm PSA fiber, through opening, carding, drawing, roving, spun yarn, plying and other conventional spinning processes, processed into 18s / 3 yarn, using 1.5D×51mm PSA fiber, through opening, carding, Conventional spinning processes such as drawing, roving, spun yarn, and plying are processed into yarns of 40s / 2. The above yarns are woven into sulfonamide woven fabrics with double-layer fabrics according to the design width of 55cm and weight of 350gsm. The filter substrate, one of which is woven with 40s / 2 yarn, is a nanofiber composite layer, and one layer is woven with 18s / 3 yarn, which is a strong support layer. The filter substrate was mounted on an electrospinning device. Dissolve polyphenylsulfone terephthalamide in DMAC solvent with a concentration of 20%. After the solute is completely dissolved, add it to the electrospinning equipment. According to the weight of 10gsm, open 8 spinning nozzles at a speed of 0.3m / min , after forming a nanofibe...

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Abstract

The invention relates to a nanometer fiber filter material. The nanometer fiber filter material is characterized by comprising a filter base material and a nanometer fiber layer formed on the filter base material, wherein the mass ratio of the filter base material to the nanometer fiber layer is 100:1-600:1. The nanoscale fiber material layer is composited on the surface of a traditional textile through an electrostatic spinning technology; the nanometer fiber fineness ranges from dozens of nanometers to hundreds of nanometers; fibers are cross-linked in an intricating mode; ultra-high magnitude-order nanoscale micro-holes exist, and the porosity is larger than 90%; the thickness of the fiber layer can be designed and machined according to the requirements of different products; PM2.5 and dust with the diameter larger than 2.5 microns can be totally filtered out, zero emission is achieved, different raw materials can be selected to machine the nanometer fiber layer according to the work condition and the characteristics of composited materials, and meanwhile the requirements for filtering precision, work condition temperature, chemical conditions and other aspects can be met. The running resistance of finished products is low, and filtering speed is high. The service life is long, the nanometer fiber filter material can be repeatedly used, and therefore running cost is greatly reduced, and higher cost performance is achieved.

Description

technical field [0001] The invention belongs to the field of high-temperature-resistant fiber filter materials, and in particular relates to a nanofiber filter material and a preparation method thereof. Background technique [0002] With its high filtration efficiency, stable performance, easy dust handling, and flexible use, the bag filter has gradually replaced the original high-temperature smoke and dust filtration method. As the demand for environmental governance is becoming more and more urgent, the demand for the quantity and performance of bag dust collectors in the market is also getting higher and higher. The filter material is one of the main working elements of the bag dust removal equipment. It uses fibers as the base material and uses various textile structures to block a large amount of dust released in industrial production from the atmospheric environment and protect our living environment. Even avoid its damage, its filtration efficiency reaches over 99%, ...

Claims

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Application Information

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IPC IPC(8): D04H1/4342D04H1/42D04H1/4382D04H13/00D01D5/00D01F6/80B01D39/14B01D39/16
Inventor 汪晓峰张光旭钱春芳吴佳
Owner SHANGHAI TANLON FIBER CO LTD
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