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A kind of preparation method of superfine fiber non-woven filter material

A technology of ultra-fine fiber and filter materials, which is applied in the direction of non-woven fabrics, separation methods, filtration and separation, etc., can solve the problems of shrinking fibers and not being able to proceed smoothly, and achieve high filtration efficiency and excellent filtration effects

Active Publication Date: 2022-03-29
LIANYUNGANG ARK IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional spunbond or meltblown process cannot reduce the diameter of the fiber without limit. Too small fiber diameter will lead to the failure of the spinning process. Therefore, how to further reduce the meltblown or spunbond nonwoven preparation process The diameter of the fiber in has always been the direction of the researchers' efforts

Method used

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  • A kind of preparation method of superfine fiber non-woven filter material

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A preparation method of superfine fiber non-woven filter material, comprising the steps of:

[0033] Step 1) Preparation of magnetic stress polymer slices, the magnetic stress particles are ferric oxide, the particle size is 500nm, the magnetic stress particles and the first polymer are mixed in a ratio of 11:100 and then granulated to obtain Magnetically stressed polymer slices containing magnetically stressed particles;

[0034] Step 2) Preparation of superfine fiber spun silk, the magnetic stress polymer chips prepared in step 1) are transported to the first screw extruder through the hopper, and melted in the first screw extruder to obtain the first polymer Melt; the second polymer is transported to the second screw extruder through the hopper, and melted in the second screw extruder to obtain the second polymer melt; the first polymer melt and the second polymer melt The distribution is delivered to the two-component spinning assembly through a metering pump, and th...

Embodiment 2

[0039] After the magnetic force splitting in step 2), the step of impacting with external force, that is, impacting with airflow is also included, and other parameters are the same as those in Embodiment 1.

Embodiment 3

[0041] Adjust the particle size of the magnetic stress particles to 600nm, mix the magnetic stress particles with the first polymer at a ratio of 15:100, adjust the solubility parameter ratio of the first polymer to the second polymer to 1:15, The strain ratio is 1:2, the spinneret hole structure is adjusted to a ten-lobe orange segment shape, and other process parameters are the same as in Example 1.

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Abstract

The invention discloses a method for preparing an ultrafine fiber nonwoven filter material and the ultrafine fiber nonwoven filter material prepared by the method. The invention uses magnetic force to split the ultrafine fiber original filaments. Alternating electromagnetic fields are arranged on both sides of the traveling route of the ultrafine fiber, and the direction of the magnetic field force on both sides of any point in the traveling direction of the ultrafine fiber original silk is opposite. The fine fiber raw silk can be fully and completely split into several independent superfine fibers combined with the subsequent beating process, which can make the splitting of the superfine fibers more complete, and the composition of the superfine fibers in the finally obtained nonwoven fiber web reaches more than 80%. , among them, the thicker raw silk fiber provides higher strength, and the finer superfine fiber provides excellent filtering effect, which not only ensures that the fiber mesh has sufficient strength as a filtering material, but also ensures that it has a good filtering effect .

Description

technical field [0001] The invention belongs to the field of spun-bonded nonwoven materials, and relates to the preparation of ultrafine fibers, in particular to a preparation method of ultrafine fiber nonwoven filter materials. Background technique [0002] With the development of economy and society, the rapid development of modern industry and transportation makes air pollution very serious. Smoke is one of the sources of air pollution and poses a great threat to human health. my country has strict restrictions on the emission of smoke and dust, and the standards are getting stricter. At present, the control of industrial smoke and dust is mainly solved by the bag filter, and the filter material is the core of the bag filter. The composition of industrial flue gas is relatively complex, especially in the working conditions of waste incineration and cement kiln co-processing of waste, which have higher and higher requirements for the performance of filter materials. In a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D04H1/4382D04H1/46D04H1/492D04H1/54D01D5/253D01D5/088D01D5/092D01F8/14D01F8/12D01F1/10B01D39/16
CPCD04H1/4382D01D5/253D01D5/088D01D5/092D04H1/46D04H1/492D04H1/54D01F8/14D01F8/12D01F1/10B01D39/1623
Inventor 倪青峰
Owner LIANYUNGANG ARK IND
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