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High-efficiency low-resistance nano anti-virus mask and production method thereof

A production method and anti-virus technology, applied in chemical instruments and methods, protective clothing, layered products, etc., can solve the problems of reducing the protective performance of masks, the attenuation of electret charge, and the inability to achieve high-efficiency filtration of germs, etc., to achieve light weight , good air permeability, simple preparation process

Inactive Publication Date: 2012-06-20
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese published patent CN1565701A provides a kind of melt-blown fiber non-woven mask material with an average fiber diameter of 0.3 microns through electret treatment. After the fibers are treated with electret, the filtration efficiency can be improved by electrostatic adsorption. The adsorption capacity of this filter material is easy to reach saturation, and the electret charge will gradually decay with the increase of the ambient temperature and humidity, which will greatly reduce the protective performance of the mask and cannot achieve high-efficiency filtration of germs.

Method used

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  • High-efficiency low-resistance nano anti-virus mask and production method thereof
  • High-efficiency low-resistance nano anti-virus mask and production method thereof
  • High-efficiency low-resistance nano anti-virus mask and production method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0028] (1) At room temperature, add 0.5 g of nylon 6 to 9.5 g of formic acid solvent, then add 0.01 g of sodium chloride, and stir on a magnetic stirrer at a speed of 50 rpm for 10 h until a uniform spinning solution is obtained. Silk solution to obtain a nylon 6 spinning solution containing sodium chloride with a mass fraction of 5%.

[0029] (2) At room temperature and a relative humidity of 20%, the prepared nylon 6 solution was sent to the spinneret at a delivery speed of 0.5mL / h, and the spinneret was connected to a 10 kV high-voltage electrostatic generator for Electrostatic spray net effect, finally use the conductive flat plate with melt-blown polypropylene non-woven fabric to receive the nylon 6 electrostatic spray net film containing two-dimensional mesh fiber and one-dimensional electrospun fiber electrostatic spray net film, the receiving distance is 5cm, Form the composite structure 7 of electrostatic spun mesh and non-woven fabric;

[0030] (3) Attach another me...

Embodiment 2

[0033](1) At room temperature, add 2 g of nylon 66 to 7.85 g of formic acid solvent, add 0.15 g of potassium chloride, and stir on a magnetic stirrer at a speed of 100 rpm for 12 h until a uniform spinning solution, the obtained mass fraction is 20% nylon 66 solution containing potassium chloride.

[0034] (2) At room temperature and a relative humidity of 25%, the prepared nylon 66 solution was sent to the spinneret at a delivery speed of 1 mL / h, and the spinneret was connected to a 30 kV high-voltage electrostatic generator for Electrostatic spray net effect, finally use the conductive roller with spunbonded polypropylene non-woven fabric to receive the nylon 66 electrostatic spray net film containing two-dimensional mesh fiber and one-dimensional electrospun fiber electrostatic spray net film, the receiving distance is 15 cm , forming a composite structure 7 of electrostatically spun mesh and non-woven fabric;

[0035] (3) Attach another spunbonded polypropylene nonwoven f...

Embodiment 3

[0038] (1) At room temperature, add 0.7 g of polyurethane to 9.25 g of N-N-dimethylformamide solvent, then add 0.05 g of sodium chloride, and stir on a magnetic stirrer at 200 rpm for 15 h until A spinning solution with uniform properties was obtained, and a polyurethane solution containing sodium chloride with a mass fraction of 7% was obtained.

[0039] (2) At room temperature and a relative humidity of 25%, the prepared polyurethane solution was sent to the spinneret at a delivery speed of 5 mL / h, and the spinneret was connected to a 40 kV high-voltage electrostatic generator for electrostatic Spray net effect, and finally use the conductive roller attached to the melt-blown polyethylene terephthalate non-woven fabric to receive the polyurethane electrostatic spray net film containing the electrostatic spray net film of two-dimensional mesh fiber and one-dimensional electrospun fiber, The receiving distance is 20 cm, forming a composite structure of electrostatic spun mesh ...

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Abstract

The invention relates to a high-efficiency low-resistance nano anti-virus mask and a production method thereof. The nano anti-virus mask comprises a filtering material and is characterized in that the filtering material comprises a base material and a static net spraying film. The production method of the nano anti-virus mask is characterized by comprising the following steps of: dissolving a polymer, adding an inorganic salt, and stirring the mixture to form a uniform spinning solution; and carrying out static net spraying on the obtained spinning solution, depositing the static net spraying film containing two-dimensional reticular fiber and one-dimensional electrospun fiber on a receiving device with the base material attached to obtain a composite structure of the base material and the static net spraying film, and preparing the composite structure into the nano anti-virus mask. The nano anti-virus mask has high virus filtering efficiency and small respiratory resistance.

Description

technical field [0001] The invention relates to a high-efficiency and low-resistance nano-antivirus mask and a production method thereof. Background technique [0002] Since the outbreak of atypical pneumonia in 2003, the research and production of anti-virus masks have attracted widespread attention from all walks of life. Traditional gauze masks have low barrier efficiency, easy moisture absorption on the surface, and are prone to cross-infection, and the protection efficiency against viruses is almost zero. Compared with my country's protective mask standard GB19083-2003 and European and American protective mask standards, its protective performance is very different. big gap. For this reason, the development of filter materials that can effectively filter harmful viruses and bacteria has become a key issue that needs to be solved urgently in the field of national health protection and the focus of research in the world in recent years. [0003] In order to solve the ab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A41D13/11D01D1/02D04H1/728B32B27/02B32B27/18
Inventor 丁彬王娜胡娟平俞建勇
Owner DONGHUA UNIV
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