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A kind of 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: 2022-06-21
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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  • A kind of 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 into a three-necked flask, heat to 50°C under stirring and maintain a constant temperature, and add the HI aqueous solution dropwise to the three-necked flask at a speed of 5 mL / min, and the dropwise addition is completed. Then, the temperature was kept constant for 1 hour, and then the temperature was lowered 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, which has the following reaction equation:

[0035]

[0036] However, n is 30-60.

[0037] (2) Dissolve crystal A in ether, cut the newly cut metal magnesium into small pieces, add it to 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, The filtrate is then cooled to -5°C to obtain solid...

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 into a three-necked flask, heat to 55°C under stirring and maintain a constant temperature, and add the HI aqueous solution dropwise to the three-necked flask at a speed of 5.5ml / min. After completion, the reaction was performed at a constant temperature for 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 The mass ratio of , HI and water is 1:0.7:0.35:4.5.

[0047] (2) Dissolve crystal A in ether, cut the newly cut metal magnesium into small pieces, add it to 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, The filtrate was then cooled to -6°C to obtain solid B. Wherein, the mass ratio of crystal A, magnesium and ether is 1:0.085:4.5.

...

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 into a three-necked flask, heat to 60°C under stirring and maintain a constant temperature, and add the HI aqueous solution dropwise to the three-necked flask at a speed of 6ml / min, and the dropwise addition is completed. After that, the reaction was performed at a 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 crystal A in ether, cut the newly cut metal magnesium into small pieces, add it to 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, The filtrate was then cooled to -7°C to obtain solid B. The mass ratio of crystal A, magnesium and ether is...

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 includes the process of coating a film on one of the two surfaces of a base cloth and the process of coating a light-reflecting coating on the other surface, the light-reflecting coating The raw material includes a modified chitosan-titanium dioxide composite material containing a modified chitosan surfactant. The modified chitosan surfactant uses chitosan as the base material and 1,4-dioxane as the base material. Grafting agent, to modify chitosan, use the moldability of chitosan itself and the ethoxy structure on the modified body to promote the formation of dense nano-film coating of rutile titanium dioxide, forming excellent sunlight reflection The ability, applied to the preparation of protective clothing fabrics, forms a light-reflecting coating of sunlight on the base fabric, which has the effect of reflecting the near-infrared radiation of sunlight, reduces the temperature inside the protective clothing and is firmly bonded to the base fabric, making it The protective clothing will not fall off when worn, which increases the comfort of the protective clothing in summer.

Description

technical field [0001] The invention belongs to the technical field of textiles, and relates to a preparation method of a medical protective clothing fabric. 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 around the world. Protective clothing is an important barrier to protect the safety of medical staff. Therefore, the quality of protective clothing is related to every The life safety of medical staff who are in close contact with virus carriers requires very high protective 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 covered or coated with a film on the fabric. [0003] However, while the protective performance of protective clothing is improved, the breathable and moist...

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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Patent Type & Authority Patents(China)
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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