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Preparation method of electrostatic spinning nano fiber glass fiber machine woven felt filter material

A nanofiber and electrospinning technology, applied in the field of preparation of electrospinning nanofiber glass fiber woven felt filter material, can solve the problems of difficult filtration and low filtration efficiency, and achieve excellent filtration performance, high filtration efficiency, good The effect of charge storage stability

Inactive Publication Date: 2016-12-14
ANHUI YUANCHEN ENVIRONMENTAL PROTECTION SCI & TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

The existing ordinary glass fiber needle felt has low filtration efficiency, especially for the small particle size of dust in the cement industry, it is difficult to completely filter

Method used

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  • Preparation method of electrostatic spinning nano fiber glass fiber machine woven felt filter material

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preparation example Construction

[0028] The invention provides a method for preparing an electrospinning nanofiber glass fiber woven mat filter material, comprising the following steps, step 1, glass fiber mat pretreatment:

[0029] (1) First add titanium dioxide nanofibers or nano activated carbon fibers into ethanol for ultrasonic dispersion to obtain a uniform dispersion A, the mass fraction of titanium dioxide nanofibers or nano activated carbon fibers in the dispersion A is 0.1% to 5%, and the Titanium dioxide nanofibers or nano activated carbon fibers have a diameter of 20nm to 80nm and a length of 200nm to 500nm;

[0030] (2) Soak the glass fiber woven mat in the dispersion A, take it out and dry it, and obtain the glass fiber woven mat substrate A with titanium dioxide nanofibers or nano activated carbon fibers deposited on the surface, and the soaking time in this step is 4 minutes to 9 minutes; The diameter of the constituent fibers in the glass fiber needle felt is 1 μm to 50 μm, and the grammage i...

Embodiment 1

[0039]Carry out the preparation of electrostatic spinning nanofiber glass fiber woven felt filter material according to the following method:

[0040] Step 1, pre-treatment of glass fiber mat:

[0041] (1) First add 2.3g of titanium dioxide nanofibers into 120ml of ethanol for ultrasonic dispersion to obtain a uniform dispersion A, the mass fraction of titanium dioxide nanofibers in the dispersion A is 0.1% to 5%, and the diameter of the titanium dioxide nanofibers is 20nm~80nm, the length is 200nm~500nm;

[0042] (2) Soak the glass fiber woven mat in the dispersion A for 4 minutes, then take it out and dry it at 80°C to obtain the glass fiber woven mat substrate A with titanium dioxide nanofibers deposited on the surface;

[0043] Step 2, electrospinning:

[0044] (1) Add inorganic nanoparticles to the solvent for ultrasonic dispersion, and the ultrasonic dispersion time is 40 minutes to obtain a uniform dispersion B, in which the inorganic nanoparticles are silica, and the...

Embodiment 2

[0050] Carry out the preparation of electrostatic spinning nanofiber glass fiber woven felt filter material according to the following method:

[0051] Step 1, pre-treatment of glass fiber mat:

[0052] (1) First add 1.2g of nano activated carbon fibers into 80ml of ethanol for ultrasonic dispersion to obtain a uniform dispersion A, the mass fraction of nano activated carbon fibers in the dispersion A is 0.1% to 5%, and the diameter of the nano activated carbon fibers is 20nm ~80nm, the length is 200nm~500nm;

[0053] (2) Soak the glass fiber woven mat in the dispersion A for 4 minutes, then take it out and dry it at 80°C to obtain the glass fiber woven mat substrate A with nano-active carbon fibers deposited on the surface;

[0054] Step 2, electrospinning:

[0055] (1) Add inorganic nanoparticles to the solvent for ultrasonic dispersion, and the ultrasonic dispersion time is 40 minutes to obtain a uniform dispersion B, in which the inorganic nanoparticles are silica, and t...

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Abstract

The invention relates to a preparation method of an electrostatic spinning nano fiber glass fiber machine woven felt filter material, and belongs to the technical field of electrostatic spinning. The preparation method comprises the following steps: step one, pre-processing glass fiber felts; step two, carrying out electrostatic spinning; step three, preparing an ultrafine nano fiber dispersion liquid; and step four, performing a composite filter material soaking treatment. The technical scheme can achieves following two beneficial effects: first, high softness and ultrafine nano fibers are deposited on nano fiber films and glass fiber woven felts obtained by electrostatic spinning so as to form a composite filtering material with a fractal secondary structure on main fibers, and the main coarse fibers have a good filtering effect on particles with a large particle size; second, the nano fiber membranes with an electret effect are adhered between the glass fiber woven felts, the direct contact between the electrostatic spun fibers with an electret effect and the external environment is hindered; the obtained electrostatic spun fiber / glass fiber woven felt composite filtering material has a good charge storage stability, and the beneficial effect is prominent.

Description

technical field [0001] The invention relates to a method for preparing an electrostatic spinning nanofiber glass fiber woven mat filter material, which belongs to the technical field of electrostatic spinning. Background technique [0002] Glass fiber needle felt is a filter material with reasonable structure and good performance. It uses glass fiber as raw material, needles the carded chopped glass fiber felt with needles, and uses mechanical methods to make the felt layer between the glass fibers, The felt layer glass fiber and the reinforced glass fiber base cloth are entangled with each other, and the fiber web is reinforced to form a felt-shaped non-woven filter material. The existing ordinary glass fiber needle felt has low filtration efficiency, especially for the small particle size of dust in the cement industry, and it is difficult to completely filter it. [0003] Electrospinning is a nanofiber preparation technology that uses high voltage for spinning. It is als...

Claims

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Application Information

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IPC IPC(8): B01D39/14B01D46/10
CPCB01D39/14B01D46/0032B01D46/10B01D2239/0216B01D2239/025B01D2239/0258B01D2239/04B01D2239/0631B01D2239/0636B01D2239/0645B01D2239/10
Inventor 刘江峰徐辉周冠辰
Owner ANHUI YUANCHEN ENVIRONMENTAL PROTECTION SCI & TECH
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