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Virus penetrating blocking film for operating gown and preparation method of film

A technology for surgical gowns and viruses, which is applied in the field of anti-virus penetration film for surgical gowns and its preparation, which can solve the problems of poor uniformity of fabric protection, failure to meet comfort requirements, poor breathability and moisture permeability, etc., to achieve protection Reliable uniformity, high qualified rate of finished products, and good uniformity

Inactive Publication Date: 2017-12-15
JIANGSU HONGYUAN NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are three main types of surgical gown fabrics that are commonly seen clinically: ordinary non-woven fabrics, flash evaporation one-time forming filter materials, and coated fabrics. Among them, the protective efficiency of surgical gowns made of ordinary non-woven fabrics is only about 40%, which cannot meet the minimum requirements of the national standard. Requirements: The filter material made by DuPont of the United States by one-time flash evaporation has good protection performance, but the protection uniformity of the fabric is not good. Some parts of the same fabric have high filtration efficiency, but some parts are very low; coated fabrics The protective effect of the surgical gown is better, but its air permeability and moisture permeability are poor, which cannot meet the comfort requirements, and the general coating is not degradable, which does not meet the environmental protection requirements

Method used

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  • Virus penetrating blocking film for operating gown and preparation method of film

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] 1) Ingredients: first choice, raw materials for the preparation of anti-virus penetration film for surgical gowns: 94.9% thermoplastic polyurethane, 1% ABS resin, 4% slip agent, 0.1% antioxidant; among them, the The raw materials for the preparation of thermoplastic polyurethane include: 42 parts of polyester polyol, 17 parts of aromatic isocyanate, 19 parts of propylene glycol, and 5 parts of dibutyltin dilaurate;

[0022] 2) Drying: Mix and stir the above raw materials in the material barrel evenly to obtain the mixture;

[0023] 3) Dehumidification and drying: put the above mixture into a dehumidifier for drying, and control the moisture content to ≤0.01%;

[0024] 3) Screw extruder plasticization: Put the dried mixture into the screw extruder to obtain the melt by extrusion plasticization;

[0025] 4) Die blown film forming: the melt is introduced into the die, and finally the film is blown through the die to form, and after winding and dividing, the virus-penetrat...

Embodiment 2

[0028] 1) Ingredients: First choice, raw materials for the preparation of anti-virus penetration film for surgical gowns: 94% thermoplastic polyurethane, 0.8% ABS resin, 5% slip agent, 0.2% antioxidant; wherein, the The raw materials for the preparation of thermoplastic polyurethane include: 45 parts of polyester polyol, 16 parts of aromatic isocyanate, 20 parts of propylene glycol, and 7 parts of dibutyltin dilaurate;

[0029] 2) Drying: Mix and stir the above raw materials in the material barrel evenly to obtain the mixture;

[0030] 3) Dehumidification and drying: put the above mixture into a dehumidifier for drying, and control the moisture content to ≤0.01%;

[0031] 3) Screw extruder plasticization: Put the dried mixture into the screw extruder to obtain the melt by extrusion plasticization;

[0032] 4) Die blown film forming: the melt is introduced into the die, and finally the film is blown through the die to form, and after winding and dividing, the virus-penetrating...

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Abstract

The invention discloses a virus penetrating blocking film for an operating gown and a preparation method of the film. The virus penetrating blocking film is prepared from components in percentage by mass as follows: 94%-95% of thermoplastic polyurethane, 0.5%-1.5% of ABS (acrylonitrile butadiene styrene) resin, 4%-6% of silicon dioxide and 0.1%-0.3% of an antioxidant, wherein the thermoplastic polyurethane is prepared from raw materials as follows: 40-50 parts of polyester polyol, 15-20 parts of aromatic isocyanate, 18-22 parts of propylene glycol and 4-8 parts of dibutyltin dilaurate. By means of the scheme, the virus penetrating blocking rate of the polyurethane film can be increased, the preparation process is simple and easy to control, and the prepared film has good uniformity and high qualification rate.

Description

technical field [0001] The invention relates to the field of films, in particular to a virus-penetrating film for surgical gowns and a preparation method thereof. Background technique [0002] With the continuous improvement of living standards, people's requirements for medical products are getting higher and higher, and the requirements for infection control during surgery are also constantly improving. From the original protection of patients only to the protection of both patients and doctors and nurses The concept of personnel has changed, and the performance of surgical gowns used in the operation has become one of the hot spots that people pay attention to. [0003] At present, there are three main types of surgical gown fabrics that are more common in clinical practice: ordinary non-woven fabrics, flash evaporation one-time forming filter materials, and coated fabrics. Among them, the protective efficiency of surgical gowns made of ordinary non-woven fabrics is only ...

Claims

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Application Information

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IPC IPC(8): C08L75/06C08L55/02C08K3/36
Inventor 周喜峰
Owner JIANGSU HONGYUAN NEW MATERIAL TECH
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