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Magnetic electret fiber air purifying and filtering material and preparation method

A technology of air purification and filter materials, which is applied in the field of air purification, can solve the problems of complex improvement process, poor charge storage performance, and influence on development and application, and achieve the effects of extending the movement path, slow magnetic field attenuation, and reducing direct loss

Inactive Publication Date: 2019-02-12
CHENDU NEW KELI CHEM SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] According to the above, among the filter element materials used in air purifiers in the existing solutions, electret filter materials generally have defects such as poor charge storage performance and excessive potential decay, while the traditional improvement process is complicated and costly, which affects Further develop the application

Method used

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  • Magnetic electret fiber air purifying and filtering material and preparation method

Examples

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Effect test

Embodiment 1

[0031] (1) Add iron salts, cobalt salts and nickel salts into deionized water and mix well to obtain a metal ion solution; the metal ion solution is a sulfate solution;

[0032] Wherein: 19 parts by weight of iron salt, 19 parts by weight of cobalt salt, 15 parts by weight of nickel salt, 47 parts by weight of deionized water;

[0033] (2) Add the metal ion solution prepared in step (1) into a miscible solution of cyclohexane, n-pentanol, cetyltrimethylammonium bromide and oxalic acid, and mix and stir at room temperature to obtain micro The emulsion is then centrifuged, dried, and calcined to obtain magnetic nanowire powder; the calcining temperature is 890°C, and the time is 1.5h;

[0034] Wherein: 43 parts by weight of metal ion solution, 43 parts by weight of cyclohexane, 3 parts by weight of n-pentanol, 4 parts by weight of cetyltrimethylammonium bromide, and 7 parts by weight of oxalic acid;

[0035] (3) Add the magnetic nanowire powder prepared in step (2) and the inor...

Embodiment 2

[0040] (1) Add iron salts, cobalt salts and nickel salts into deionized water and mix well to obtain a metal ion solution; the metal ion solution is a nitrate solution;

[0041] Wherein: 18 parts by weight of iron salt, 17 parts by weight of cobalt salt, 13 parts by weight of nickel salt, 52 parts by weight of deionized water;

[0042] (2) Add the metal ion solution prepared in step (1) into a miscible solution of cyclohexane, n-pentanol, cetyltrimethylammonium bromide and oxalic acid, and mix and stir at room temperature to obtain micro The emulsion is then centrifuged, dried, and calcined to obtain magnetic nanowire powder; the calcining temperature is 800°C, and the time is 2 hours;

[0043] Wherein: 40 parts by weight of metal ion solution, 49 parts by weight of cyclohexane, 2 parts by weight of n-pentanol, 3 parts by weight of cetyltrimethylammonium bromide, and 6 parts by weight of oxalic acid;

[0044](3) Add the magnetic nanowire powder prepared in step (2) and the in...

Embodiment 3

[0049] (1) Add iron salts, cobalt salts and nickel salts into deionized water and mix well to obtain a metal ion solution; the metal ion solution is a chloride solution;

[0050] Wherein: 22 parts by weight of iron salt, 20 parts by weight of cobalt salt, 16 parts by weight of nickel salt, 42 parts by weight of deionized water;

[0051] (2) Add the metal ion solution prepared in step (1) into a miscible solution of cyclohexane, n-pentanol, cetyltrimethylammonium bromide and oxalic acid, and mix and stir at room temperature to obtain micro The emulsion is then centrifuged, dried, and calcined to obtain magnetic nanowire powder; the calcining temperature is 1000°C, and the time is 1h;

[0052] Wherein: 45 parts by weight of metal ion solution, 36 parts by weight of cyclohexane, 4 parts by weight of n-pentanol, 5 parts by weight of cetyltrimethylammonium bromide, and 10 parts by weight of oxalic acid;

[0053] (3) Add the magnetic nanowire powder prepared in step (2) and the ino...

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Abstract

The invention relates to the field of air purification, and discloses a magnetic electret fiber air purifying and filtering material and a preparation method. The preparation method comprises the following preparation processes: (1) preparing metal ion solutions of ferric salt, cobalt salt and nickel salt; (2) adding into a mixed solution of cyclohexane, n-amyl alcohol, cetyl trimethyl ammonium bromide and oxalic acid to form a microemulsion, and calcining to prepare magnetic nanowire powder; (3) adding the magnetic nanowire powder, inorganic electret nanoparticle titanium dioxide, silicon dioxide and a polar polymer into a solvent to prepare electrostatic spinning fluid; and (4) performing electrostatic spinning on a non-woven fabric to prepare the magnetic electret fiber air purifying and filtering material. The magnetic nanowire added in the prepared magnetic electret fiber material not only enhances the initial potential but also slows down the attenuation of surface potentials, amagnetic field enables the material to keep surface potential for a long time in damp air, the magnetic field decay is extremely slow, the capture capacity of the material to particulate matters is enhanced, and the service life of the material is prolonged.

Description

technical field [0001] The invention relates to the field of air purification, and discloses a magnetic electret fiber air purification filter material and a preparation method thereof. Background technique [0002] In recent years, with the increasing pollution of the air environment and the use of many interior decoration and decoration materials, the air quality has attracted widespread attention from the society. In order to effectively solve the threat of indoor air pollution to people's health, air purifiers are generally used at present. As the core component of the air purifier, the performance of the filter material is directly related to the quality of the air purification effect. [0003] High-performance filter materials must have the characteristics of high efficiency and low resistance, but conventional filter materials rely solely on mechanical capture mechanisms to filter particles, usually with high efficiency and high pressure resistance. Electret fiber f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/14B01D46/00
CPCB01D39/14B01D46/0001B01D46/0034
Inventor 陈庆高锋
Owner CHENDU NEW KELI CHEM SCI CO LTD
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