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Antibacterial and antiviral degradable non-woven fabric as well as preparation method and application thereof

A non-woven fabric and anti-virus technology, applied in the textile field, can solve problems such as the difficulty of large-scale commercial production of electrospinning technology, affecting the comfort of the wearer, and the lack of verification of anti-virus properties, etc., to achieve high virus inactivation and sterilization Effect, excellent long-term effectiveness, effect of excellent air permeability

Pending Publication Date: 2021-10-29
NANJING FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although masks prepared from these raw materials are biodegradable and can solve environmental pollution problems, their antiviral properties have not been verified, and the main problem with electrospun nonwovens is that the air permeability of masks may be affected. Reduced, thereby affecting the comfort of the wearer
On the other hand, due to various safety and technical issues, it is difficult to achieve large-scale commercial production of electrospinning technology.

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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  • Antibacterial and antiviral degradable non-woven fabric as well as preparation method and application thereof
  • Antibacterial and antiviral degradable non-woven fabric as well as preparation method and application thereof
  • Antibacterial and antiviral degradable non-woven fabric as well as preparation method and application thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0029] The preparation method of the antibacterial and antiviral degradable nonwoven fabric comprises the following steps:

[0030] (1) 2,2,6,6-tetramethylpiperidine-1-oxyl radical (TEMPO), NaBr, NaClO and deionized water are mixed in a certain proportion to prepare a reaction solution and adjust the pH value of the reaction solution, Immerse the cellulose spunlace non-woven fabric in the above reaction solution for a certain period of time, wash with deionized water and ethanol after the reaction and dry naturally;

[0031] (2) Mix 1-ethyl-(3-dimethylaminopropyl) carbodiimide hydrochloride (EDC), N-hydroxysuccinimide (NHS) and deionized water in a certain proportion to prepare Reaction solution, immersing the cellulose spunlace nonwoven fabric obtained in step (1) in the reaction solution for a certain period of time;

[0032] (3) dissolving the modified guanidinium polymer or neomycin sulfate into a solvent to prepare a certain concentration of the reaction solution and adjus...

Embodiment 1

[0045] refer to figure 1 , the present embodiment provides an antibacterial and antiviral degradable non-woven fabric, the non-woven fabric is a cellulose wet-laid spunlace non-woven fabric with a surface density of 50 g / m 2 .

[0046] Described organic antibacterial agent is a modified guanidine-based polymer, and its molecular formula structure is: where n≥2.

[0047] The mask sequentially includes the above-mentioned antibacterial and antiviral degradable non-woven fabric, a second fabric layer and a third fabric layer from outside to inside.

[0048] The second fabric layer is a polypropylene melt-blown non-woven fabric that filters and absorbs fine particles or bacterial viruses; the third fabric layer is any one of polypropylene spunbonded non-woven fabrics or natural cotton fabrics.

[0049] The preparation method of the antibacterial and antiviral degradable nonwoven fabric comprises the following steps:

[0050] (1) TEMPO, NaBr, NaClO and deionized water are mix...

Embodiment 2

[0056] The present embodiment provides an antibacterial and antiviral degradable nonwoven fabric. Compared with Example 1, the difference is that in step (3), the modified guanidine-based polymer is dissolved in deionized water to prepare a concentration of 50 mg / The reaction solution of mL, all the other are identical with embodiment 1.

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Abstract

The invention relates to an antibacterial and antiviral degradable non-woven fabric as well as a preparation method and application thereof. The non-woven fabric is a cellulose spunlace non-woven fabric, and the non-woven fabric contains an organic antibacterial agent and / or antibiotic. The organic antibacterial agent is a modified guanidyl polymer, and the antibiotic is neomycin sulfate. A mask sequentially comprises the antibacterial and antiviral degradable non-woven fabric, a second fabric layer and a third fabric layer from outside to inside. According to the antibacterial and antiviral degradable non-woven fabric, the mask can be endowed with long-acting antibacterial and antiviral functions while the air permeability of the mask is not influenced, meanwhile, the problem of leaching effect of a metal nanoparticle modified mask is solved, the material is degradable, and the environmental pollution pressure caused by non-degradable petroleum-based fiber materials such as polypropylene and the like can be effectively relieved.

Description

technical field [0001] The invention relates to the technical field of textiles, in particular to an antibacterial and antiviral degradable nonwoven fabric and a preparation method thereof, as well as its application in protective materials such as masks. Background technique [0002] The devastating novel coronavirus (COVID-19) pandemic has infected hundreds of millions of people, causing immeasurable and irreparable socioeconomic losses. To alleviate the pandemic crisis, the use of personal protective equipment (such as masks) is considered an important strategy to limit and mitigate the spread of the SARS-CoV-2 virus, because masks can effectively capture and intercept tiny virus aerosols. However, these petroleum-based masks, especially polypropylene (PP) masks, which dominate the global market, cannot completely eliminate the risk of infection due to their lack of antiviral and antibacterial properties, as viruses can Survive on the surface of the mask for a long time....

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): D06M15/31D06M13/432D06M13/372A41D13/11A41D31/02A41D31/30A41D31/04D06M101/06
CPCD06M15/31D06M13/432D06M13/372D06M16/00A41D13/11A41D13/1192A41D31/02A41D31/30A41D31/04A41D2500/30D06M2101/06
Inventor 邓超肖惠宁勇强法扎德·塞迪靳向煜李程程魏海英
Owner NANJING FORESTRY UNIV
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