Nanofiber coated paper-based filter material and preparation method thereof

A nanofiber and filter material technology, applied in the field of papermaking, can solve the problems of polluting the environment and human body, high cost, harmfulness, etc., and achieve the effects of improving filtration efficiency, good electret efficiency, and good dispersion stability.

Active Publication Date: 2020-09-22
QILU UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the problems of low output, high cost, environmental pollution and harm to the human body of the above-mentioned polypropylene melt-blown cloth, the present invention provides a method for manufacturing a new paper-based filter material with simple operation and moderate cost, so as to obtain a high-quality and high-quality filter material. Paper-based filter material with static voltage, high filtration efficiency and low breathing resistance

Method used

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  • Nanofiber coated paper-based filter material and preparation method thereof
  • Nanofiber coated paper-based filter material and preparation method thereof
  • Nanofiber coated paper-based filter material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] A preparation method of nanofiber-coated paper-based filter material, the steps are as follows:

[0051] (1) Preparation of coating solution:

[0052] Add 0.3 parts of sodium hexametaphosphate and 1 part of nanofiber material to 1000 parts of water, then add 10 parts of nano silicon dioxide, 10 parts of tourmaline, 40 parts of polytetrafluoroethylene powder and 20 parts of diatomaceous earth, and disperse at high speed Disperse at high speed for 30 minutes under the dispersion condition of 1400r / min. Then add 30 parts of polyvinyl alcohol successively, 5 parts of chitosan, 0.5 part of defoamer, finally disperse 20 minutes under the dispersing condition of high-speed disperser 1400r / min. The resulting coating had a liquid-solid content of 10.2%.

[0053] (2) The quantitative will be 20g / m 2 Put the base paper on the narrow slot coater, and apply the pre-prepared coating liquid on the base paper through the extrusion nozzle on the coater, and the coating amount is 6.8g...

Embodiment 2

[0059] A preparation method of nanofiber-coated paper-based filter material, the steps are as follows:

[0060] (1) Preparation of coating solution:

[0061] First add 0.3 parts of sodium hexametaphosphate and 1 part of nanofiber material to 1000 parts of water, then add 10 parts of nano silicon dioxide, 10 parts of tourmaline, 50 parts of polytetrafluoroethylene powder and 20 parts of diatomaceous earth, and disperse at high speed Disperse at high speed for 30 minutes under the dispersion condition of 1400r / min. Then add 30 parts of polyvinyl alcohol successively, 5 parts of chitosan, 0.5 part of defoamer, finally disperse 20 minutes under the dispersing condition of high-speed disperser 1400r / min. The resulting coating had a liquid-solid content of 10.6%.

[0062] (2) The quantitative will be 20g / m 2 Put the base paper on the narrow slot coater, and apply the pre-prepared coating liquid on the base paper through the extrusion nozzle on the coater, and the coating amount i...

Embodiment 3

[0068] A preparation method of nanofiber-coated paper-based filter material, the steps are as follows:

[0069] (1) Preparation of coating solution:

[0070] Add 0.3 parts of sodium hexametaphosphate and 1 part of nanofiber material to 1000 parts of water, then add 10 parts of nano silicon dioxide, 10 parts of tourmaline, 60 parts of polytetrafluoroethylene powder and 20 parts of diatomaceous earth, and disperse at high speed Disperse at high speed for 30 minutes under the dispersion condition of 1400r / min. Then add 30 parts of polyvinyl alcohol successively, 5 parts of chitosan, 0.5 part of defoamer, finally disperse 20 minutes under the dispersing condition of high-speed disperser 1400r / min. The resulting coating had a liquid-solid content of 10.5%.

[0071] (2) The quantitative will be 20g / m 2 Put the base paper on the narrow slot coater, and apply the pre-prepared coating liquid on the base paper through the extrusion nozzle on the coater, and the coating amount is 6.6g...

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Abstract

The invention belongs to the technical field of papermaking, and relates to a nanofiber coated paper-based filter material and a preparation method thereof, wherein the nanofiber coated paper-based filter material comprises a base paper layer and a coating layer formed by coating and drying a coating liquid. The base paper layer is base paper, and the physical properties of the base paper are as follows: the quantification is 20-40 g / m<2>, and the tensile strength is 0.3 KN / m-1.0 KN / m; the wet strength is 15%-30%; the filtering efficiency is 50%-80%; the respiratory resistance is 30 to 70 Pa;the average pore diameter is 30 to 55 microns; the nanofiber coated paper-based filter material has the induction electrostatic voltage of 550-920 V and the filter efficiency of more than 90%. The nanofiber coated paper-based filter material is more environment-friendly than polypropylene melt-blown cloth, and meets the policy requirements of energy conservation, emission reduction and environmental friendliness at present.

Description

technical field [0001] The invention relates to a nanofiber-coated paper-based filter material and a preparation method thereof, in particular to a new paper-based filter material with high static voltage, low respiratory resistance and high filtration efficiency and a preparation method thereof, belonging to the technical field of papermaking. Background technique [0002] my country is a large industrial production country. With the improvement of people's living standards in our country, people have higher and higher requirements for their own health and environment. However, my country is a large developing country and is in the period of accelerated industrialization. The output and consumption of steel, coal, cement, and electric power are among the top in the world. Because these heavy industries, energy industries, and raw material industries are all backward industries, the corresponding instruments and equipment are very backward, which has a serious impact on the ...

Claims

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Application Information

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IPC IPC(8): D21H19/40D21H19/64D21H19/52D21H19/56D21H19/60D21H19/44D21H19/58D21H21/12D21H21/36D21H23/22D21H25/06D21H27/08B01D39/14
CPCB01D39/14B01D2239/0435B01D2239/0492B01D2239/10B01D2239/1291D21H19/40D21H19/44D21H19/52D21H19/56D21H19/58D21H19/60D21H19/64D21H21/12D21H21/36D21H23/22D21H25/06D21H27/08
Inventor 赵传山陈立栋李杰华李辉李霞丁其军
Owner QILU UNIV OF TECH
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