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Antibacterial nano-silver textile and preparation method thereof

A nano-silver antibacterial and textile technology, applied in the field of radiation chemistry, can solve the problems of poor washing resistance, high reaction temperature, complex process, etc., and achieve the effects of superior washing resistance, less usage, simplified operation steps and experimental devices

Active Publication Date: 2014-08-06
SHANGHAI INST OF APPLIED PHYSICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to overcome the defects of high reaction temperature, toxicity, low efficiency, complicated process and poor washing resistance of the product in the existing preparation method of nano-silver antibacterial textiles, thereby providing a nano-silver antibacterial textile Textiles and methods for their preparation

Method used

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  • Antibacterial nano-silver textile and preparation method thereof
  • Antibacterial nano-silver textile and preparation method thereof
  • Antibacterial nano-silver textile and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) Add the grafted monomer in water, sonicate, add a certain amount of water-soluble silver salt and reducing agent after it is completely dissolved, and continue to sonicate for 5 minutes to obtain a mixture. Among them, the amount of grafting monomer is 0.1g 2-aminoethyl methacrylate hydrochloride / ml water, the concentration of silver nitrate in the mixture is 1.7mg / mL, and the concentration of ethanol is 10% (V / V%) ;

[0037] (2) Add cotton cloth (0.05g cotton cloth / ml mixture), nitrogen bubbles for 10 minutes to remove the oxygen in the system, seal it and send it to the cobalt-60 irradiation chamber, the irradiation dose rate is 2kGy / h, and the irradiation is 17h;

[0038] (3) After the irradiation is completed, wash the obtained nano-silver antibacterial cotton cloth with a large amount of water for 6-10 times, and dry it.

Embodiment 2

[0048] Infiltrate nylon-6 (0.5g fabric / ml mixture, weight average mass=1 million) fabric into the mixture containing graft monomer, reducing agent, water-soluble silver salt and water. The preparation method of this mixture is the same as Example 1, wherein the grafting monomer consumption is 0.5g2-aminoethyl methacrylate hydrochloride / ml water, and methanol concentration is 45% (V / V%) in this mixture, acetic acid The concentration of silver is 40mg / mL; then nitrogen bubbles for 10min to remove the oxygen in the system, seal it and send it into the cobalt-60 irradiation room, the irradiation dose rate is 1kGy / h, and the irradiation is 17h; after the irradiation is completed, put The obtained nano-silver antibacterial fabric was rinsed with a large amount of water for 6-10 times, and then dried to obtain a silver-loaded antibacterial fabric with a surface silver loading of 16.7%.

[0049] Wash the antibacterial fabric 50 times according to the AATCC61-2006 accelerated washing s...

Embodiment 3

[0051] The polyvinylidene fluoride (PVDF) (0.5g fabric / ml mixture, weight average mass = 600,000) fabric was soaked into the mixture containing graft monomer, reducing agent, water-soluble silver salt and water. The preparation method of this mixture is the same as embodiment 1, wherein the grafting monomer consumption is 0.01g2-aminoethyl methacrylate hydrochloride / ml water, and isopropanol concentration is 1% (V / V%) in this mixture , the concentration of silver perchlorate is 0.17mg / mL; then nitrogen bubbles for 10min to remove the oxygen in the system, sealed and sent to the cobalt-60 irradiation room, the irradiation dose rate is 10kGy / h, irradiation 10h; After the irradiation, the obtained nano-silver antibacterial fabric was rinsed with a large amount of water for 6-10 times, and dried to obtain the silver-loaded antibacterial fabric, with a surface silver-loaded amount of 1.7%.

[0052] Wash the antibacterial fabric 50 times according to the AATCC61-2006 accelerated was...

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Abstract

The invention discloses antibacterial nano-silver textile and a preparation method thereof. The preparation method comprises the steps as follows: under the oxygen-free condition, the high-energy ray irradiation textile has grafting reaction and reduction reaction in a mixture of water, a grafting monomer, a reducing agent and water-soluble silver salt, so that the antibacterial nano-silver textile is obtained; and the grafting monomer adopts 2-aminoethyl methacrylate hydrochloride, and the reducing agent adopts alcohol with the atomic number of 1-8. According to the preparation method, the textile does not require any modification treatment before grafting, the operation method is simple, efficient and environment-friendly, especially, large-scale batch production can be realized, and further, the prepared antibacterial nano-silver textile is outstanding in antibacterial performance and excellent in laundering durability.

Description

technical field [0001] The invention relates to the field of radiation chemistry, in particular to a nano-silver antibacterial textile and a preparation method thereof. Background technique [0002] Textiles are closely related to human life, and are also closely related to the health and hygiene of human life. Especially with the improvement of people's quality of life, the antibacterial properties of textiles have been paid more and more attention. The use of silver as an antibacterial can be traced back to ancient times. The ancients used silverware to store food and water to prolong the storage time of food. In addition, acupuncture and moxibustion in traditional Chinese medicine and silver in western medicine have a long history in treating ulcers. In 1983, Von Naegeli discovered that silver could kill microorganisms such as bacteria, which played an important role in the development of silver. Since the 20th century, silver has experienced the development of colloida...

Claims

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Application Information

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IPC IPC(8): D06M11/83D06M14/22D06M14/34D06M14/28D06M14/30D06M14/32D06M101/06D06M101/34D06M101/22D06M101/30D06M101/20D06M101/28D06M101/32
Inventor 李景烨虞鸣刘汉洲马红娟李林繁
Owner SHANGHAI INST OF APPLIED PHYSICS - CHINESE ACAD OF SCI
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