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Preparation method of mask interlayer interlayer filter material

A filter material and interlayer technology, which is applied in the field of preparation of interlayer filter materials in masks, can solve problems such as difficulty in realizing high-efficiency and low-resistance filtration, and achieve the effects of controllable fiber morphology, rich pore structure, and high porosity.

Active Publication Date: 2018-12-18
TAICANG AN YOU NO WOVEN SCI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the large pore size, fiber diameter, and low porosity of traditional fiber filter materials make it difficult to achieve high-efficiency and low-resistance filtration of fine particles such as PM2.5 in the air, which greatly promotes the development of high-performance fiber filter materials. process

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A preparation method for interlayer filter material in the middle of a mask, comprising the following steps:

[0017] S1. Use chopped plant fiber to configure fiber slurry and add it to the refiner for refining treatment. The rotating speed of the refining is 15000r, and then sieve with a fiber sieving instrument. The selection of the screen mesh is 300um, and the sieved After the solution is concentrated to a concentration of 20wt%, the fibrillated plant fiber solution is obtained;

[0018] S2. Prepare a sodium alginate solution with a concentration of 3wt% and a PVA solution with a concentration of 20wt%, respectively, prepare the fibrillated plant fiber solution in step S1, and mix the sodium alginate solution and the PVA solution in a mass ratio of 1:1:1 , and then add oxidized activated carbon, the content of oxidized activated carbon is 8wt%, let stand defoaming, obtain composite solution, then pour in the container, cast into the hydrogel film that thickness is 1...

Embodiment 2

[0023] A preparation method for interlayer filter material in the middle of a mask, comprising the following steps:

[0024] S1. Use chopped plant fibers to configure fiber slurry and add it to the refiner for refining treatment. The rotating speed of the refining is 20000r, and then sieve with a fiber sieving instrument. The selection of the sieve mesh is 150um, and the sieved After the solution is concentrated to a concentration of 25wt%, the fibrillated plant fiber solution is obtained;

[0025] S2. Prepare a sodium alginate solution with a concentration of 6wt% and a PVA solution with a concentration of 10wt%, respectively, prepare a fibrillated plant fiber solution in step S1, and mix the sodium alginate solution and the PVA solution in a mass ratio of 1:1:1 , and then add oxidized activated carbon, the content of oxidized activated carbon is 4wt%, leave standstill defoaming, obtain composite solution, then pour in the container, cast into the hydrogel film that thickness...

Embodiment 3

[0030] A preparation method for interlayer filter material in the middle of a mask, comprising the following steps:

[0031] S1. Use chopped plant fiber to configure fiber slurry and add it to the refiner for refining treatment. The rotating speed of the refining is 16000r, and then sieve with a fiber sieving instrument. The selection of the screen mesh is 180um, and the sieved After the solution is concentrated to a concentration of 22wt%, the fibrillated plant fiber solution is obtained;

[0032] S2. Prepare a sodium alginate solution with a concentration of 4wt% and a PVA solution with a concentration of 18wt%, respectively, prepare the fibrillated plant fiber solution in step S1, and mix the sodium alginate solution and the PVA solution in a mass ratio of 1:1:1 , then add oxidized activated carbon, the content of oxidized activated carbon is 5wt%, leave standstill defoaming, obtain composite solution, then pour in the container, cast into the hydrogel film that thickness i...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention provides a preparation method of a mask interlayer interlayer filter material, comprising the following steps: S1. preparing a fibrillated plant fiber solution; S2. preparing a hydrogelfilm; S3. preparing a fibroin electrolytic spinning film by electrospinning of a spinning solution, and coating both sides of the fibroin electrolytic film with a composite solution prepared in Step S2, and then compounding the hydrogel film on both sides to obtain a composite film; S4. putting the composite film in a freeze-dryer and freeze-drying to obtain a freeze-dried film; and S5. fixing thefreeze-dried film on a receiving plate of an electrospinning machine, and carrying out electrospinning on both sides of the freeze-dried film through the same spinning solution in the Step S3 so as to obtain the mask interlayer interlayer filter material. The mask interlayer interlayer filter material has good adsorption and filtration effects.

Description

technical field [0001] The invention relates to textile materials, in particular to a method for preparing a filter material in the middle of a mask. Background technique [0002] With the continuous development of science and technology and modern industry, the problem of environmental pollution is becoming more and more serious, and the pollution of air fine particles characterized by PM2.5 is intensifying. The composition of PM2.5 pollutants in the air is complex, mainly including inorganic substances (such as SiO 2 , SO 4 2- and NO 3 - etc.) and organic substances (such as organic carbon and elemental carbon, etc.), and the sources are mainly coal-fired power generation, industrial production and vehicle exhaust emissions, and have the characteristics of compound pollution with multiple pollution sources superimposed. It will not only cause frequent smog weather, but also cause respiratory and cardiovascular diseases, fetal developmental defects, congestive heart fa...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): B01D46/54B01D39/16A41D13/11
CPCA41D13/11B01D39/1607B01D46/543
Inventor 李德喜陈宗明
Owner TAICANG AN YOU NO WOVEN SCI TECH CO LTD
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