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Melt-blow non-woven material capable of effectively filtering PM 2.5 particles, preparation method and production device

A high-efficiency filtration and melt-blown technology, which is applied in the preparation of melt-blown non-woven materials and the field of production devices for melt-blown non-woven materials, can solve the problems that melt-blown non-woven materials cannot meet the requirements for use, and achieves improved electret effect, The effect of reducing fiber fineness and small fiber diameter

Active Publication Date: 2014-11-19
DO FLUORIDE CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a melt-blown non-woven material that efficiently filters PM2.5 and solve the problem that existing melt-blown non-woven materials cannot meet the requirements of use

Method used

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  • Melt-blow non-woven material capable of effectively filtering PM 2.5 particles, preparation method and production device
  • Melt-blow non-woven material capable of effectively filtering PM 2.5 particles, preparation method and production device
  • Melt-blow non-woven material capable of effectively filtering PM 2.5 particles, preparation method and production device

Examples

Experimental program
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Effect test

Embodiment 1

[0030] The high-efficiency PM2.5 filter melt-blown non-woven material of this embodiment contains the following components in weight percentage: 96 parts of polypropylene, 3.8 parts of electret masterbatch, and 0.2 part of polyvinylidene fluoride.

[0031] The preparation method of the melt-blown non-woven material of the high-efficiency filter PM2.5 of the present embodiment comprises the following steps:

[0032] 1) Mix polypropylene, electret masterbatch, and polyvinylidene fluoride evenly to obtain a mixture;

[0033] 2) Feed the mixture obtained in step 1) into the silo of the screw extruder, and melt and extrude it to form a melt. 180°C, 200°C, 220°C, 225°C;

[0034] 3) The melt is kept in the pipeline at a constant temperature of 225°C, and after being metered by a metering pump, it is sprayed out through a spinneret to form fibers. Melt blown cloth;

[0035] 4) The melt-blown cloth obtained in step 3) is subjected to infrared radiation heat treatment at a constant t...

Embodiment 2

[0040] The high-efficiency PM2.5 filter melt-blown non-woven material of this embodiment contains the following components in weight percentage: 95 parts of polypropylene, 4.8 parts of electret masterbatch, and 0.2 part of polyvinylidene fluoride.

[0041] The preparation method of the melt-blown non-woven material of the high-efficiency filter PM2.5 of the present embodiment comprises the following steps:

[0042] 1) Mix polypropylene, electret masterbatch, and polyvinylidene fluoride evenly to obtain a mixture;

[0043]2) Feed the mixture obtained in step 1) into the silo of the screw extruder, and melt and extrude it to form a melt. 180°C, 200°C, 220°C, 235°C;

[0044] 3) The melt is kept in the pipeline at a constant temperature of 235°C, and after being metered by a metering pump, it is sprayed out through a spinneret to form fibers. Melt blown cloth;

[0045] 4) The melt-blown cloth obtained in step 3) is subjected to infrared radiation heat treatment at a constant te...

Embodiment 3

[0049] The high-efficiency PM2.5 filter melt-blown non-woven material of this embodiment contains the following components in weight percentage: 94 parts of polypropylene, 5.8 parts of electret masterbatch, and 0.2 part of polyvinylidene fluoride.

[0050] The preparation method of the melt-blown non-woven material of the high-efficiency filter PM2.5 of the present embodiment comprises the following steps:

[0051] 1) Mix polypropylene, electret masterbatch, and polyvinylidene fluoride evenly to obtain a mixture;

[0052] 2) Feed the mixture obtained in step 1) into the silo of the screw extruder, and melt and extrude it to form a melt. 180°C, 210°C, 230°C, 245°C;

[0053] 3) The melt is kept in the pipeline at a constant temperature of 245°C, and after being metered by a metering pump, it is sprayed out through a spinneret to form fibers. Melt blown cloth;

[0054] 4) The melt-blown cloth obtained in step 3) is subjected to infrared radiation heat treatment at a constant t...

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Abstract

The invention discloses a melt-blow non-woven material capable of effectively filtering PM 2.5 particles, a preparation method and a production device. The melt-blow non-woven material comprises, by weight percentage, 93-97 parts of polypropylene, 3-6 parts of electret master batch and 0.1-1 part of polyvinylidene fluoride. According to the melt-blow non-woven material capable of effectively filtering PM 2.5 particles, the polypropylene, the electret master batch and the polyvinylidene fluoride are compounded, the obtained melt-blow non-woven material is characterized by high porosity, the fiber diameter of smaller than two micrometers, large clogging capacity, high filtering efficiency and low resistance, an electret is good in charge storage performance after electret processing, the charge keeping rate can be above two years, and the electret can be used in a high-temperature and high-humidity environment. The product is environmentally friendly and free of pollution, has the advantages of being long in service life and wide in use range, and is particularly suitable for removing PM 2.5 particles in the air.

Description

technical field [0001] The invention belongs to the technical field of melt-blown non-woven materials, and in particular relates to a melt-blown non-woven material for efficiently filtering PM2.5, and also relates to a preparation method of a melt-blown non-woven material for efficiently filtering PM2. The production device of the melt-blown non-woven material that filters PM2.5. Background technique [0002] PM2.5 refers to particulate matter with an aerodynamic equivalent of less than or equal to 2.5 microns in the ambient air, also known as fine particulate matter; it can be suspended in the air for a long time; the higher its content (concentration) in the air, the higher the air pollution serious. Although fine particulate matter is only a relatively small component of the earth's atmosphere, it has an important impact on air quality and visibility. Compared with coarser atmospheric particulate matter, fine particulate matter has a smaller particle size, is rich in a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/4291D04H1/70D06C7/00D06M10/02B01D39/08
Inventor 杨华春张迎晨候红军李世江薛峰峰罗传军杨晨卢泥泥李小强罗成果王矿宾肖俊任小磊王哲张倩
Owner DO FLUORIDE CHEM CO LTD
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