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Preparation method and application of bionic cocklebur type antibacterial and antiviral plant fiber

A plant fiber and anti-virus technology, which is applied in the fields of plant fiber, fiber treatment, textiles and papermaking, etc., can solve the problems of lack of anti-bacterial and anti-virus, etc., and achieve the effect of remarkable anti-bacterial and anti-virus effect, easy operation and simple process

Active Publication Date: 2021-10-22
FUJIAN AGRI & FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the defects of the lack of antibacterial and antiviral spunlace nonwoven products in the prior art, and firstly provide a preparation method of bionic cocklebur type antibacterial and antiviral plant fiber

Method used

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  • Preparation method and application of bionic cocklebur type antibacterial and antiviral plant fiber

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The preparation method of the bionic cocklebur type antibacterial and antiviral plant fiber comprises the following steps:

[0038](1) Weigh 30 grams (dry mass) of bleached spruce softwood chemical pulp, add 970 mL of deionized water to make the concentration 3%, soak for 4 hours at a temperature of 20 ° C, then add 500 mL of deionized water to adjust the fiber concentration Dissociate at a temperature of 20°C with a standard fiber disintegrator, and the rotation speed of the propeller is 20,000, so that the plant fibers are evenly dispersed into a single fiber state.

[0039] (2) The decomposed plant fiber obtained in step (1) is concentrated to a concentration of 10% with a Buchner funnel, placed in a PFI mill for mechanical beating, the beating temperature is 20°C, and the beating concentration is 10%. , the number of beating rotations is 20000 rpm, and the degree of beating of the plant fibers after beating is 82.4°SR, thereby obtaining cocklebur-type plant fibers. ...

Embodiment 2

[0045] The preparation method of the bionic cocklebur type antibacterial and antiviral plant fiber comprises the following steps:

[0046] (1) Take by weighing 30 grams (absolutely dry mass) of bleached hemlock softwood chemical pulp, add 1470 mL of deionized water to make the concentration 2%, soak for 6 hours at a temperature of 20 ° C, and then use a standard fiber disintegrator at 20 Dissociation is carried out at a temperature of ℃, and the rotation speed of the propeller is 20,000 revolutions, so that the plant fibers are evenly dispersed into a single fiber state.

[0047] (2) The decomposed plant fiber obtained in step (1) is concentrated to a concentration of 10% with a Buchner funnel, placed in a PFI mill for mechanical beating, the beating temperature is 20°C, and the beating concentration is 10%. , the number of beating revolutions is 20,000 rpm, and the beating degree of the plant fiber after beating is 84.4°SR, thereby obtaining the cocklebur type plant fiber.

...

Embodiment 3

[0053] The preparation method of the bionic cocklebur type antibacterial and antiviral plant fiber comprises the following steps:

[0054] (1) Take by weighing 30 grams (absolutely dry mass) of bleached wet metro fir softwood chemical pulp, add 1470 mL of deionized water to make the concentration 2%, soak for 6 hours at a temperature of 20 ° C, and then use a standard fiber disintegrator to Dissociation is carried out at a temperature of 30°C, and the rotation speed of the propeller is 30,000 revolutions, so that the plant fibers are evenly dispersed into a single fiber state.

[0055] (2) The decomposed plant fiber obtained in step (1) is concentrated to a concentration of 10% with a Buchner funnel, placed in a PFI mill for mechanical beating, the beating temperature is 30°C, and the beating concentration is 10%. , the number of beating revolutions is 30000 rpm, and the degree of beating of the plant fibers after beating is 89.8°SR, thereby obtaining cocklebur-type plant fibe...

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Abstract

The invention belongs to the technical field of preparation of antibacterial and antiviral fiber materials, and discloses a method for preparing bionic cocklebur type antibacterial and antiviral plant fibers. The surface of the plant fibers is fibrillated by a mechanical beating method, and the cocklebur type plant fibers are prepared. The specific surface area and porosity of plant fibers increase the amount of in-situ oxidation of polyaniline on the surface of plant fibers; glucose solution is then used to assist polyaniline to reduce silver ammonia ions on the surface of plant fibers to generate nano-silver in situ to obtain antibacterial Cocklebur type plant fiber with antiviral properties. The bionic cocklebur type antibacterial and antiviral plant fiber prepared by the method has a bacteriostatic rate of escherichia coli, Staphylococcus aureus and Candida albicans greater than 99.9%, and its antiviral activity value (Mv ) greater than 3.0.

Description

technical field [0001] The invention relates to the field of preparation of antibacterial and antiviral fiber materials, in particular to a preparation method and application of bionic cocklebur type antibacterial and antiviral plant fibers. Background technique [0002] With the development of social economy, the improvement of medical level and the improvement of medical and sanitary conditions, people's demand for medical protective equipment and materials is increasing. The global annual market sales of medical and health non-woven materials exceed 7 billion US dollars, of which spunlace non-woven fabrics account for 35% of medical non-woven materials, with an annual growth rate of 7%, and will continue to grow in the future . At present, conventional spunlace nonwoven products include medical surgical gowns, medical dressing materials, wound dressings, masks, bandages, etc. In the future, spunlace non-woven materials will also develop into the field of multifunctional...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M11/83D06M15/61D01D1/00C23C18/44D06M101/06
CPCC23C18/44D01D1/00D06M11/83D06M15/61D06M2101/06
Inventor 马晓娟曹石林黄海陈秋艳
Owner FUJIAN AGRI & FORESTRY UNIV