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A kind of preparation method of electrostatic spinning pan/bamboo charcoal powder nanofiber membrane filter material and product thereof

A technology of nanofiber membranes and filter materials, which can be used in spinning solution preparation, layered products, fiber treatment, etc., and can solve the problems of reducing the service life and filtration performance of air-conditioning filter elements, affecting the accuracy of instrument measurement, and affecting air quality, etc. , to achieve the effect of small fiber fineness, low penetration and high filtration efficiency

Inactive Publication Date: 2020-02-18
YANCHENG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Fine particles may carry a large number of bacteria, viruses and organic pollutants, which have a great impact on human health and the accuracy of instrument measurement
The existing indoor air conditioner filter elements will continue to deposit particles on the filter material with the prolongation of working hours during use, resulting in a rapid increase in the resistance pressure drop, reducing the service life and filtration performance of the air conditioner filter elements, and further affecting the performance of automobiles. , trains and other locomotives and other indoor air quality

Method used

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  • A kind of preparation method of electrostatic spinning pan/bamboo charcoal powder nanofiber membrane filter material and product thereof
  • A kind of preparation method of electrostatic spinning pan/bamboo charcoal powder nanofiber membrane filter material and product thereof
  • A kind of preparation method of electrostatic spinning pan/bamboo charcoal powder nanofiber membrane filter material and product thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Prepare the solution: first measure 44ml of DMF (density = 0.945-950g / ml) solvent and place it in a beaker, add 6g of polyacrylonitrile (PAN) powder into the solvent, place the beaker on an electric stirrer and stir it with a glass rod. Heat it for 60 minutes until it is completely dissolved, then let it cool naturally for 2 hours at room temperature at 20°C, take it out for use, and the solution after stirring is colorless and transparent;

[0030] Add different contents of bamboo charcoal powder 0g, 0.15g, 0.5g, 1g respectively to prepare PAN bamboo charcoal solution, and stir on a magnetic stirrer for 3 hours;

[0031] Electrospinning: use electrospinning machine SH-01, electrospinning needle specifications: select the inner diameter of 0.41mm, outer diameter of 0.71mm, and length of 6.5mm. The distance is 30cm, the liquid feeding volume is 0.588ml / h, and different contents of PAN bamboo charcoal solutions are sprayed onto PP melt-blown non-woven fabrics to make pure...

Embodiment 2

[0038] Preparation of polyacrylonitrile solution: first measure 44ml of DMF (N,N-dimethylformamide, density = 0.945-950g / ml) solvent in a beaker, add 6g of polyacrylonitrile (PAN) powder into the solvent, Place the beaker on an electric stirrer and stir it with a glass rod and heat it for 60 minutes until it is completely dissolved, then let it cool naturally for 2 hours at room temperature at 20°C, take it out for use, and the solution after stirring is colorless and transparent;

[0039] Add 1g of bamboo charcoal powder to prepare PAN bamboo charcoal solution, and stir on a magnetic stirrer for 3 hours;

[0040]Electrospinning: use electrospinning machine SH-01, electrospinning needle specifications: select the inner diameter of 0.41mm, outer diameter of 0.71mm, and length of 6.5mm. The distance is 30cm, the liquid feeding volume is 0.588ml / h, and under the same spinning time of 20 minutes, spray 1g of PAN bamboo charcoal solution onto the PP melt-blown non-woven fabric to m...

Embodiment 3

[0044] Prepare the solution: first measure 44ml of DMF (N,N-dimethylformamide, density = 0.945-950g / ml) solvent in a beaker, add 6g of polyacrylonitrile (PAN) powder to the solvent, and place the beaker Stir with a glass rod on an electric stirrer and heat it for 60 minutes until it is completely dissolved, then let it cool naturally at room temperature for 2 hours at 20°C, take it out for use, and the solution after stirring is colorless and transparent;

[0045] Electrospinning: use electrospinning machine SH-01, electrospinning needle specifications: select the inner diameter of 0.41mm, outer diameter of 0.71mm, and length of 6.5mm. The distance is 30cm, the liquid feeding volume is 0.588ml / h, and the PAN solution is sprayed onto the PP melt-blown non-woven fabric to make a PAN nanofiber membrane. The total electrospinning time of the PAN nanofiber membrane is 60min;

[0046] Preparation of nanofiber membrane filter material: 20cm×20cm PP non-woven fabric and electrospun na...

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Abstract

The invention discloses a preparation method of an electrostatic spinning PAN / bamboo charcoal powder nanofiber membrane filtering material and a product of the preparation method. The method comprisesthe following steps: preparation of a polyacrylonitrile solution; preparation of a polyacrylonitrile bamboo charcoal solution; electrostatic spinning; preparation of a nanofiber membrane filtering material: preparing a filtering material comprising a multilayer structure of polypropylene nonwoven fabric, a polyacrylonitrile nanofiber membrane, a polyacrylonitrile nanofiber membrane containing bamboo charcoal, a polyacrylonitrile nanofiber membrane and polypropylene nonwoven fabric. The nanofiber membrane filtering material is small in fineness, and has the characteristics of low resistance, high flow, low penetrating power and high filtering efficiency, and meets the performances of the currently pursuant filtering materials.

Description

technical field [0001] The invention belongs to the technical field of nanofiber membranes, and in particular relates to a method for preparing an electrospun PAN / bamboo charcoal powder nanofiber membrane filter material and a product thereof. Background technique [0002] With the continuous improvement of living standards, people have higher and higher requirements for the air quality of the living environment. In addition, places such as hospital operating rooms and high-precision electronic instrument rooms have stricter requirements on indoor air quality. Fine particles may carry a large number of bacteria, viruses and organic pollutants, which have a great impact on human health and the accuracy of instrument measurement. The existing indoor air conditioner filter elements will continue to deposit particles on the filter material with the prolongation of working hours during use, resulting in a rapid increase in the resistance pressure drop, reducing the service life ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/02B32B27/32B32B27/30B32B5/02B32B27/12B32B37/12B32B37/10B32B37/06D01D1/02D01D5/00D04H1/43D04H1/728
CPCB32B5/02B32B5/26B32B27/12B32B37/06B32B37/10B32B37/12B32B2250/20B32B2262/0223B32B2262/0253D01D1/02D01D5/0069D01D5/0092D04H1/43D04H1/728
Inventor 郭岭岭林洪芹陆振乾崔红高大伟王春霞王涛张婉
Owner YANCHENG INST OF TECH
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