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Preparation method of medical protective clothing fabric

A technology for protective clothing and fabrics, which is applied in the field of preparation of medical protective clothing fabrics, can solve the problems that the advantages of rutile titanium dioxide cannot be well utilized, and achieve the effect of reducing temperature and increasing comfort.

Active Publication Date: 2021-04-09
SUZHOU TANGHUA NANO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] There are also people who apply rutile titanium dioxide to the heat-insulating coating of outdoor textiles, such as a kind of heat-insulating coating for outdoor textiles disclosed in Chinese patent CN102561039B and its preparation method and application. The weight parts of each component of the heat-insulating coating It is: 6-7 parts of silicon dioxide, 2-3 parts of aluminum oxide, 10-12 parts of zinc oxide, 4-5 parts of rutile titanium dioxide, 80-100 parts of PU glue, 0.5-2 parts of dispersant, 2-4 parts of bridging agent, 0.2-3 parts of leveling agent, 0.5-1 part of defoamer, 0-45 parts of toluene, 0-45 parts of acetone and 1-2 parts of anti-sticking agent. Although it can play a certain heat insulation effect, it is obvious from the formula that in addition to rutile titanium dioxide, a large amount of silicon dioxide, aluminum trioxide and zinc oxide are also added, while the addition of rutile titanium dioxide The amount is small and PU glue is used as the film-forming material, which cannot give full play to the advantages of rutile titanium dioxide.

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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  • Preparation method of medical protective clothing fabric
  • Preparation method of medical protective clothing fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The medical protective clothing fabric provided in this embodiment is prepared through the following steps:

[0034] (1) Dissolve chitosan and sulfuric acid in water, add them to a three-necked flask, heat to 50°C under stirring and maintain a constant temperature, add HI aqueous solution to the three-necked flask dropwise at a rate of 5mL / min, and the addition is complete Afterwards, react at constant temperature for 1 hour, and then lower the temperature to -8°C to obtain light yellow crystal A, in which chitosan, H 2 SO 4 The mass ratio of , HI, and water is 1:0.6:0.3:4, with the following reaction equation:

[0035]

[0036] Among them, n is 30-60.

[0037] (2) Dissolve the crystal A in ether, cut the freshly cut metal magnesium into small pieces, add it into the ether solvent, stir at room temperature for 3 hours, then distill off the solvent at 30°C, and heat the remaining solution to 60°C, Filtrate with heat preservation, and then cool the filtrate to -5°C ...

Embodiment 2

[0045] The medical protective clothing fabric provided in this embodiment is prepared through the following steps:

[0046] (1) Dissolve chitosan and sulfuric acid in water, add them to a three-necked flask, heat to 55°C under stirring and maintain a constant temperature, add HI aqueous solution to the three-necked flask dropwise at a speed of 5.5ml / min, dropwise After completion, the reaction was carried out at constant temperature for another 1.5 hours, and then the temperature was lowered to -9°C to obtain light yellow crystal A. Among them, chitosan, H 2 SO 4 , HI, water mass ratio is 1:0.7:0.35:4.5.

[0047] (2) Dissolve the crystal A in ether, cut the freshly cut metal magnesium into small pieces, add it to the ether solvent, stir at room temperature for 3.5 hours, then distill off the solvent at 35°C, and heat the remaining solution to 65°C, Filtrate with heat preservation, and then cool the filtrate to -6°C to obtain solid B. Wherein, the mass ratio of crystal A, m...

Embodiment 3

[0052] The medical protective clothing fabric provided in this embodiment is prepared through the following steps:

[0053] (1) Dissolve chitosan and sulfuric acid in water, add them to a three-necked flask, heat to 60°C under stirring and maintain a constant temperature, add HI aqueous solution to the three-necked flask dropwise at a speed of 6ml / min, and the addition is completed After that, the reaction was carried out at constant temperature for 2 hours, and then the temperature was lowered to -10°C to obtain light yellow crystal A. Among them, chitosan, H 2 SO 4 The mass ratio of , HI and water is 1:0.8:0.4:5.

[0054] (2) Dissolve the crystal A in ether, cut the freshly cut metal magnesium into small pieces, add it to the ether solvent, stir at room temperature for 4 hours, then distill off the solvent at 35°C, and heat the remaining solution to 70°C, Filtrate with heat preservation, and then cool the filtrate to -7°C to obtain solid B. The mass ratio of crystal A, m...

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 relates to a preparation method of a medical protective clothing fabric, which comprises a process of coating one of two surfaces of base cloth with a film and a process of coating the other surface of the base cloth with a light reflection coating, and the raw material of the light reflection coating comprises a modified chitosan- titanium dioxide composite material containing a modified chitosan surfactant, according to the modified chitosan surfactant, chitosan is used as a base material, 1, 4-dioxane is used as a grafting agent, chitosan is modified, rutile type titanium dioxide is promoted to form a compact nano-film coating by utilizing the film-forming property of chitosan and an ethoxy structure on a modified body, and excellent sunlight reflection capability is formed; and when the modified chitosan- titanium dioxide composite material is used in preparation of protective clothing fabric, a light reflection coating is formed on the base cloth, has the effect of reflecting near infrared radiation of sunlight, reduces the internal temperature of the protective clothing and is firmly bonded with the base cloth, so that the protective clothing does not fall off when being worn, and the wearing comfort of the protective clothing in summer is improved.

Description

technical field [0001] The invention belongs to the technical field of textiles, and relates to a preparation method of a fabric for medical protective clothing. Background technique [0002] With the emergence of SARS and the new crown epidemic, protective clothing with the function of isolating viruses, body fluids, blood, and alcohol has become an important reserve material for countries all over the world. Protective clothing is an important barrier to protect the safety of medical personnel, so the quality of protective clothing is related to everyone. The life safety of medical staff who are in close contact with virus carriers requires very high protection performance. In order to achieve the purpose of isolating viruses, body fluids and blood in medical protective clothing, the existing protective clothing needs to be coated or coated with a film on the fabric. [0003] However, while the protective performance of protective clothing is improved, the air permeabilit...

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): B32B5/02B32B27/12B32B27/32B32B33/00B32B38/16B32B38/00D06N3/00A41D13/12A41D31/32A41D31/02C08B37/08
CPCB32B5/022B32B27/12B32B27/32B32B33/00B32B38/164B32B38/00D06N3/0011D06N3/00D06N3/0043D06N3/0077C08B37/003A41D13/12A41D31/32A41D31/02B32B2255/02B32B2037/243B32B2038/0064B32B2307/416D06N2209/0876D06N2211/18D06N2211/10A41D2500/30
Inventor 陈艳珍王鹏张仁海
Owner SUZHOU TANGHUA NANO TECH
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