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Nanofiber medical protective clothing material and preparation method thereof

A nanofiber and protective clothing technology, applied in the field of nanofiber medical protective clothing materials and their preparation, can solve problems such as health risk defects, decreased air permeability and moisture permeability, etc., and achieve good air permeability and moisture permeability and strong anti-virus penetration ability. , the effect of simple process

Pending Publication Date: 2021-06-01
咸宁优维科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to propose a nanofiber medical protective clothing material and its preparation method for the virus protection, air permeability and moisture permeability decline and health risk defects after the existing nanofibers are used for a long time.

Method used

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  • Nanofiber medical protective clothing material and preparation method thereof
  • Nanofiber medical protective clothing material and preparation method thereof

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Effect test

preparation example Construction

[0036] The present invention also provides a method for preparing the nanofiber medical protective clothing material, such as figure 2 As shown, it specifically includes the following steps:

[0037] (1) Configure the finished solution: according to the formula ratio, first add the antibacterial agent into the solvent, ultrasonically disperse it for 10-30 minutes, and then add one of the polymers PAN, PVDF, PSU, PS, PA, PU, ​​PMMA, and PEO in the formula ratio One or several kinds, stirred at 40-60°C for 3-5 hours, and prepared into a finished solution;

[0038] (2) Solution method air spinning: the finished solution configured in step (1) is drawn by solution method air spinning process to form nanofibers with high aspect ratio and doped with antibacterial agent, which are collected and adhered to the hydrophobic nonwoven fabric. On the cloth support layer, the antibacterial and sterilizing layer of hydrophobic nanofibers oriented or randomly arranged into a non-woven web s...

Embodiment 1

[0046] Provide a kind of nanofiber medical protective clothing material, its preparation method comprises the steps:

[0047] (1) Prepare the finished product solution: Add an appropriate amount of nano-silver particles into the DMF solvent, ultrasonically disperse for 20 minutes, then add an appropriate amount of PVDF powder into the ultrasonically treated solvent, stir for 4 hours under heating at 50°C, and finally obtain a mass fraction of 0.1 % nano silver, the spinning solution of mass fraction 16% PVDF;

[0048] (2) Solution method air spinning: the spinning solution configured in step (1) is drafted by solution method air spinning process to form nanofibers with high aspect ratio and doped with antibacterial agent, and the support layer is non-woven On the collector, set the collection distance to 30cm, the wind force to 300m / min, and the single-needle liquid supply speed to 2ml / h. The prepared nanofibers are collected and adhered to the hydrophobic non-woven fabric sup...

Embodiment 2

[0052] Provide a kind of nanofiber medical protective clothing material, its preparation method comprises the steps:

[0053] (1) Prepare the finished solution: Add an appropriate amount of nano-copper into the DMF solvent, ultrasonically disperse for 20 minutes, then add an appropriate amount of PAN powder into the ultrasonically treated solvent, stir for 4 hours under heating at 50°C, and finally obtain a mass fraction of 0.2% Nano copper, the spinning solution of mass fraction 12%PAN;

[0054] (2) Solution method air spinning: the spinning solution configured in step (1) is drafted by solution method air spinning process to form nanofibers with high aspect ratio and doped with antibacterial agent, and the support layer is non-woven On the collector, set the collection distance to 20cm, the wind force to 200m / min, and the single-needle liquid supply speed to 2.5ml / h. The prepared nanofibers are collected and adhered to the hydrophobic non-woven support layer, and arranged in...

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Abstract

The invention discloses a nanofiber medical protective clothing material and a preparation method thereof, and the protective clothing material comprises a hydrophobic non-woven fabric supporting layer, a hydrophobic nanofiber antibacterial and bactericidal layer and a functional protective layer which are arranged in a stacked manner through hot melting welding, wherein the hydrophobic nanofiber antibacterial sterilization layer is formed by nanofibers which are directly prepared on the hydrophobic non-woven fabric supporting layer by adopting an airflow spinning method and are doped with a nano antibacterial agent. The nanofiber doped with the nano antibacterial agent is directly prepared on the hydrophobic non-woven fabric supporting layer by adopting an air flow spinning method, and then the nanofiber and the functional protective layer are compounded into the medical protective clothing material by adopting a hot melting welding process, so that the prepared medical protective clothing material has good air and moisture permeability and relatively strong virus penetration resistance; and an antibacterial agent is added in the manufacturing process of the nanofibers, so that the antibacterial and bactericidal capabilities of the material are improved, and a layer of insurance is added to the protective clothing.

Description

technical field [0001] The invention relates to the technical field of medical protection, in particular to a nanofiber medical protective clothing material and a preparation method thereof. Background technique [0002] Medical protective clothing is the "combat suit" for medical workers. The material of conventional protective clothing is non-woven fabric. The problems encountered during use are poor air permeability and moisture permeability and weak anti-virus penetration ability. Usually, the effect of spinning viruses is good. High-quality protective clothing has poor air and moisture permeability, while protective clothing with good air and moisture permeability has poor anti-virus ability. After wearing protective clothing with poor air permeability and moisture permeability for one or two hours, the user's hair will be sweaty, glasses will fog up, and even water will accumulate in the shoes. The poor wearing comfort will greatly affect the convenience of work; and t...

Claims

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Application Information

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IPC IPC(8): B32B27/02B32B27/12B32B27/08B32B27/28B32B27/30B32B27/32B32B27/34B32B27/36B32B27/40A41D31/02A41D31/30A41D31/12A41D31/102
CPCB32B5/022B32B5/26B32B27/12B32B27/30B32B27/34B32B27/36A41D31/02A41D31/305A41D31/12A41D31/102B32B2262/0223B32B2262/0238B32B2262/0246B32B2262/0253B32B2262/0261B32B2262/0276B32B2262/0292B32B2262/0284A41D2500/30
Inventor 时楠伍晖韩若冰刘正廉宋健安
Owner 咸宁优维科技有限公司
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