Antiviral and antibiotic fiber, and preparation method and use thereof

An antibacterial fiber and anti-virus technology, applied in the fiber field, can solve the problems of poor affinity and hinder fiber graft polymerization reaction modification, etc., and achieve the effects of energy saving, rich raw materials and strong adsorption capacity

Active Publication Date: 2014-07-30
SHENZHEN QIANHAI GUANGDA TECH INFORMATION SERVICE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, fibers with a hydrophobic structure have poor affinity for hydrophilic monomers containing cationic functional groups, which hinders the graft polymerization of functional groups to fibers.

Method used

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  • Antiviral and antibiotic fiber, and preparation method and use thereof
  • Antiviral and antibiotic fiber, and preparation method and use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Get 20g polypropylene fiber, after irradiation dosage is the gamma ray pre-irradiation of 40kGy, be placed in 200ml containing the olefinic monomer (being the acrylic acid of 2wt%, 2wt% methacrylamide, 1wt% acrylamide), 0.01wt% ammonium ferrous sulfate, and water as the balance, and reacted at 80°C for 1 hour to obtain pretreated polypropylene fibers. The solution can be reused after treatment.

[0028] The above-mentioned 20g polypropylene fiber after pretreatment is placed in 120ml of monomers containing cationic functional groups (i.e. 4wt% benzylethyltrimethylammonium chloride (CAS No. 26616) containing 5wt% by weight of the total solution -35-3), 1wt% of diallyl dimethyl ammonium chloride), 1wt% of polyquaternium salt (that is, 1wt% of polydimethyldiallyl ammonium chloride), 0.01wt% of Azobisisobutyronitrile, 0.01wt% triethylamine, 25wt% acetone, and a solvent with the balance being water, reacted for 30min under the ultraviolet light of a high-pressure mercury va...

Embodiment 2

[0030] Take 20g of viscose fiber, place it in 500ml solution containing 5wt% alkaline solution based on the total solution weight (that is, 5wt% sodium hydroxide), and the balance is water, soak at 80°C for 30min, and obtain alkali-treated Viscose. Put the viscose fiber after the alkali treatment in 150ml containing 40wt% olefinic monomers containing hydrophilic groups based on the total solution weight (i.e. 10wt% acrylic acid, 30wt% hydroxyethyl methacrylate), 0.5 In a solution of wt% benzophenone, 0.5wt% triethylamine, 20wt% ethanol, and the balance being water, react under the ultraviolet light of a high-pressure mercury vapor lamp with a power of 300W and a light intensity of 90% for 10 minutes , to obtain the pretreated viscose fiber.

[0031] Put the above-mentioned 20g viscose fiber after pretreatment into 100ml of monomers containing 15wt% cationic functional groups based on the total solution weight (i.e. 5wt% acryloyloxyethyltrimethylammonium chloride, 10wt% % dia...

Embodiment 3

[0033] Take 20g of polyacrylonitrile non-woven fabric to undergo graft polymerization reaction with olefin monomer solution containing hydrophilic groups through ultraviolet light irradiation, wherein the ultraviolet light irradiation conditions are: a high-pressure mercury vapor lamp with a power of 150W and a light intensity of 100%. react under UV light for 50 min. A pretreated polyacrylonitrile nonwoven fabric is obtained. Then place 200ml of olefinic monomers containing 5wt% hydrophilic groups based on the total solution weight (i.e. 2wt% acrylic acid, 2wt% methacrylamide, 1wt% acrylic acid amide), 0.01wt% In a solution of ferrous ammonium sulfate and water as the balance, react at 80° C. for 1 hour to obtain a pretreated polyacrylonitrile nonwoven fabric.

[0034] Put the above-mentioned 20g polyacrylonitrile non-woven fabric after pretreatment into 100ml of monomers containing 35wt% cationic functional groups based on the total solution weight (i.e. 35wt% acryloyloxyet...

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Abstract

The invention discloses an antiviral and antibiotic fiber, and a preparation method and an application thereof. The surface of the fiber is grafted with a monomer with a cationic functional group. The preparation method comprises the following steps: preprocessing a raw material fiber to improve the hydrophilic performance of the raw material fiber, fully infiltrating the preprocessed fiber in a grafting liquid containing a cationic functional group monomer, and carrying out an irradiation grafting reaction to obtain the antiviral and antibiotic fiber. The raw material fiber used by the preparation method can be a chemical fiber or natural fiber. Each of the anti-influenza virus rate and the anti-adenovirus rate of the antiviral and antibiotic fiber prepared in the invention is higher than 90%, and each of the anti-Staphylococcus aureus rate, the anti-Escherichia coli rate and the anti-Candida albicans rate of the antiviral and antibiotic fiber is higher than 96%. The antiviral and antibiotic fiber can be processed to form yarns, fabrics, nonwoven fabrics, nets and felts applied in medical, environmentally-friendly or/and personnel hygiene articles according to different uses.

Description

technical field [0001] The invention relates to a fiber, in particular to an antiviral and antibacterial fiber and its preparation method and application. Background technique [0002] People are often infested by bacteria and viruses in daily life, affecting people's quality of life, seriously even endangering human life and health. Because ordinary textiles do not have antibacterial properties, they adhere to human secretions during the wearing process of the human body and become a good environment for bacterial growth, endangering human health. The wide application of antibacterial materials began with the prevention of bacterial infections in hospitals and the attention and protection of personal hygiene; in addition, regarding viruses, the SARS (Severe Acute Respiratory Syndrome) virus that broke out in 2003, because it is easy to enter through the respiratory system The human body, the immune system, and the rapid replication and spread of the virus made it once wrea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M14/28D06M14/22D06M14/34D06M14/32D06M14/24A01N33/12A01N37/44A01N47/28A01P1/00A01P3/00
Inventor 陈文凯
Owner SHENZHEN QIANHAI GUANGDA TECH INFORMATION SERVICE
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