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A kind of composite protective material and preparation method thereof for new crown pneumonia epidemic prevention

A protective material and pneumonia technology, which is applied in the field of composite protective materials for new coronary pneumonia epidemic prevention and its preparation, can solve the problems of the mechanical properties, air permeability and comfort of polyester fabrics, and affect the wearing performance of fiber fabrics, etc., and achieve excellent antibacterial, The effect of increasing the load and improving the air permeability

Active Publication Date: 2020-12-22
大连双迪桃花卫生用品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, while improving the durability and load capacity of graphene, the mechanical properties, air permeability, and comfort of polyester fabrics usually decrease, which affects the wearing performance of fiber fabrics.

Method used

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  • A kind of composite protective material and preparation method thereof for new crown pneumonia epidemic prevention
  • A kind of composite protective material and preparation method thereof for new crown pneumonia epidemic prevention
  • A kind of composite protective material and preparation method thereof for new crown pneumonia epidemic prevention

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] A composite protective material for the prevention of new coronary pneumonia, including a support layer, a nanofiber antibacterial layer and a skin-friendly layer arranged sequentially from the outside to the inside, the nanofiber antibacterial layer includes a layer loaded with hexamethylene diisocyanate modified The hydroxyl-terminated hyperbranched polyester nanofiber nonwoven fabric of graphene and the carboxyl-terminated hyperbranched polyester nanofiber nonwoven fabric loaded with diethylenetriamine-modified graphene are prepared by the following steps:

[0064] S1. Preparation of hydroxyl-terminated hyperbranched polyester nanofiber nonwoven fabric

[0065] The hydroxyl-terminated hyperbranched polyester masterbatch and cellulose acetate butyrate with a mass ratio of 1:8 are melt-extruded through a twin-screw extruder, drawn, and laid into a network to obtain a hydroxyl-terminated hyperbranched polyester / acetate butyrate Cellulose blended fiber non-woven fabric; ...

Embodiment 2-3 and comparative example 4-5

[0103] Compared with Example 1, the composite protective materials provided in Examples 2-3 and Comparative Examples 4-5 for the prevention of new coronary pneumonia are different in that in step S1, the softening point is at a high degree of branching at 100°C Mass ratio m 1 :m 2 As shown in Table 2, the others are basically the same as those in Embodiment 1, and will not be repeated here.

[0104] The test result of table 2 embodiment 2-3 and comparative example 4-5

[0105]

[0106] It can be seen from Table 2 that with the increase in the mass ratio of the high-branched hydroxyl-terminated hyperbranched polyester masterbatch with a softening point of 100°C and the low-branched hydroxyl-terminated hyperbranched polyester masterbatch with a softening point of 200°C The antibacterial rate of the protective material and the antibacterial rate after washing gradually increased, but the breaking strength and air permeability both increased first and then decreased. This is...

Embodiment 4-5 and comparative example 6-7

[0108] Compared with Example 1, the composite protective materials provided in Examples 4-5 and Comparative Examples 6-7 for the prevention of new coronary pneumonia are different in that in step S2, the softening point is at a high degree of branching at 100°C The mass ratio m 3 :m 4 As shown in Table 3, the others are basically the same as those in Embodiment 1, and will not be repeated here.

[0109] The test result of table 3 embodiment 4-5 and comparative example 6-7

[0110]

[0111] As can be seen from Table 3, with the softening point at 100 ° C high degree of branching carboxyl hyperbranched polyester masterbatch and softening point at 200 ° C low branching carboxyl hyperbranched polyester masterbatch mass ratio Increase, the antibacterial rate of the protective material and the antibacterial rate after washing all gradually increase, but the breaking strength and air permeability all increase first and then decrease, and the impact mechanism is roughly the same as...

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Abstract

The invention provides a composite protective material for the prevention of new coronary pneumonia and a preparation method thereof. Including a support layer, a nanofiber antibacterial layer and a skin-friendly layer arranged in sequence from the outside to the inside, the nanofiber antibacterial layer includes at least one layer of hydroxyl-terminated hyperbranched polyester nanofiber non-woven fabric loaded with diisocyanate-modified graphene and at least A non-woven fabric of carboxyl-terminated hyperbranched polyester nanofibers loaded with polyethylene polyamine-modified graphene. Among them, the hydroxyl-terminated hyperbranched polyester nanofiber non-woven fabric and the carboxyl-terminated hyperbranched polyester nanofiber non-woven fabric form a penetrating network through condensation and crosslinking of the terminal hydroxyl and carboxyl groups; diisocyanate-modified graphene and hydroxyl-terminated hyperbranched The terminal hydroxyl groups of polyester nanofibers or the amino groups of polyethylene polyamines form chemical bonds, and the amino groups of polyethylene polyamines form chemical bonds with the terminal carboxyl groups of carboxyl-terminated hyperbranched polyester nanofibers or the isocyanate groups of diisocyanate, thus giving polyester The fabric has excellent antibacterial properties, mechanical properties and air permeability.

Description

technical field [0001] The invention belongs to the technical field of textile materials, and relates to a composite protective material used for the prevention of new coronary pneumonia and a preparation method thereof. Background technique [0002] With the gradual improvement of people's living standards, personal hygiene and health issues have been paid more and more attention. As the necessities of human life, fiber textiles have been paid more and more attention to their safety and hygiene functions. Under this social trend, the research on various antibacterial and protective fabrics has developed rapidly in recent years. And since the 21st century, with the successive outbreaks of major viral infectious diseases such as H1N1 influenza, avian influenza, equine influenza, SARS pathogens, and new coronaviruses, these viruses enter the lungs through the upper and lower respiratory tracts and bronchi, and enter through the alveoli. Human blood poses a major threat to hu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/02B32B27/12B32B27/36B32B27/28B32B27/34B32B27/20B32B9/02B32B9/04B32B33/00A41D31/02A41D31/30A41D31/14A41D31/24D04H3/005D06M11/74D06M101/32
CPCB32B5/022B32B5/02B32B27/20B32B9/047A41D31/02A41D31/30A41D31/14A41D31/24D04H3/005D06M11/74B32B2262/0276B32B2262/0261B32B2262/062B32B2250/20B32B2307/7145B32B2307/724B32B2571/02A41D2500/30D06M2101/32A62B23/025B01D2239/025B01D39/1623B01D2239/0627B01D2239/0622B01D2239/0492A41D13/1192B32B5/268B32B2260/023B32B5/267B32B2262/0284B32B2307/54B32B2307/30B32B2571/00B32B2262/02B32B5/266C08K3/042A41D31/305B32B5/26B32B2307/714B32B2437/00C08K5/29C08K9/04D04H3/011
Inventor 刘洪李长桂
Owner 大连双迪桃花卫生用品有限公司
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