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A kind of nanofiber coated paper-based filter material and preparation method thereof

A nanofiber, filter material technology, applied in the field of papermaking, can solve the problems of harmful, electrostatic voltage, low filtration efficiency, low breathing resistance, and high cost

Active Publication Date: 2021-07-16
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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  • A kind of nanofiber coated paper-based filter material and preparation method thereof
  • A kind of nanofiber coated paper-based filter material and preparation method thereof
  • A kind of nanofiber coated paper-based filter material and preparation method thereof

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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, 5 parts of chitosan, and 0.5 part of defoamer in sequence, and finally disperse for 20 minutes under the dispersing condition of a high-speed disperser at 1400 r / 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 coat the pre-prepared coating liquid on the base paper through the extrusion nozzle on the coater, and the coatin...

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, 5 parts of chitosan, and 0.5 part of defoamer in sequence, and finally disperse for 20 minutes under the dispersing condition of a high-speed disperser at 1400 r / 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 coat the pre-prepared coating solution on the base paper through the extrusion nozzle on the coater, and th...

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, 5 parts of chitosan, and 0.5 part of defoamer in sequence, and finally disperse for 20 minutes under the dispersing condition of a high-speed disperser at 1400 r / 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 coat the pre-prepared coating solution on the base paper through the extrusion nozzle on the coater, and the coat...

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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. The nanofiber-coated paper-based filter material includes 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 base paper are as follows: Quantitatively: 20-40g / m 2 , tensile strength: 0.3KN / m‑1.0KN / m; wet strength: 15%‑30%; filtration efficiency: 50%‑80%; respiratory resistance: 30‑70Pa; average pore size: 30‑ 55 μm; the nanofiber-coated paper-based filter material has an induced static voltage of 550‑920V and a filtration efficiency of >90%. Compared with polypropylene meltblown cloth, it is more environmentally friendly and meets the current policy requirements of energy saving, emission reduction and environmental friendliness.

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's requirements for their own health and environment are getting higher and higher. However, my country is a large developing country, and it is in the period of accelerated industrialization. The output and consumption of steel, coal, cement, electric power, etc. are all in the forefront of 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 ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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