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Preparation method for Beta-cyclodextrin nano-silver antibacterial fabric

A nano-silver antibacterial and cyclodextrin technology is applied in the directions of plant fibers, textiles and papermaking, fiber processing, etc. It can solve the problems of difficult fixation, lack of reactive groups of elemental silver, discoloration, etc., and achieve good antibacterial durability.

Inactive Publication Date: 2018-06-12
TIANJIN BAOXINGWEI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Silver-based antibacterial agents have the advantages of persistence, broad-spectrum, safety, high efficiency, and resistance to drug resistance. However, elemental silver lacks reactive groups and is difficult to fix on textiles. It is also sensitive to light and easy to absorb. A "color change" reaction occurs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0017] A preparation method of β-cyclodextrin nano-silver antibacterial fabric, the specific steps are as follows:

[0018] (1) Preparation of β-cyclodextrin nano silver solution

[0019] Configure equal volumes of β-cyclodextrin solution, silver nitrate solution and sodium borohydride solution, wherein the concentration of β-cyclodextrin solution is 20mmol / L, the concentration of silver nitrate solution is 1mmol / L, and the concentration of sodium borohydride solution 2mmol / L;

[0020] Add the silver nitrate solution into the β-cyclodextrin solution and stir for 1 hour to obtain a colorless, uniform and transparent solution;

[0021] Pour the obtained colorless, uniform and transparent solution into a round-bottomed flask, add a magnet, connect the constant pressure titration funnel, add the sodium borohydride solution to the constant pressure titration funnel, and adjust the titration speed to make the sodium borohydride solution Drop by drop, stir magnetically at a tempera...

specific Embodiment 2

[0027] A preparation method of β-cyclodextrin nano-silver antibacterial fabric, the specific steps are as follows:

[0028] (1) Preparation of β-cyclodextrin nano silver solution

[0029] Configure equal volumes of β-cyclodextrin solution, silver nitrate solution and sodium borohydride solution, wherein the concentration of β-cyclodextrin solution is 20mmol / L, the concentration of silver nitrate solution is 1mmol / L, and the concentration of sodium borohydride solution 2mmol / L;

[0030] Add the silver nitrate solution into the β-cyclodextrin solution and stir for 1.5 hours to obtain a colorless, uniform and transparent solution;

[0031] Pour the obtained colorless, uniform and transparent solution into a round-bottomed flask, add a magnet, connect the constant pressure titration funnel, add the sodium borohydride solution to the constant pressure titration funnel, and adjust the titration speed to make the sodium borohydride solution Drop by drop, stir magnetically at a temp...

specific Embodiment 3

[0037] A preparation method of β-cyclodextrin nano-silver antibacterial fabric, the specific steps are as follows:

[0038] (1) Preparation of β-cyclodextrin nano silver solution

[0039] Configure equal volumes of β-cyclodextrin solution, silver nitrate solution and sodium borohydride solution, wherein the concentration of β-cyclodextrin solution is 20mmol / L, the concentration of silver nitrate solution is 1mmol / L, and the concentration of sodium borohydride solution 2mmol / L;

[0040] Add the silver nitrate solution into the β-cyclodextrin solution and stir for 1.2 hours to obtain a colorless, uniform and transparent solution;

[0041] Pour the obtained colorless, uniform and transparent solution into a round-bottomed flask, add a magnet, connect the constant pressure titration funnel, add the sodium borohydride solution to the constant pressure titration funnel, and adjust the titration speed to make the sodium borohydride solution Drop by drop, stir magnetically at a temp...

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Abstract

The invention relates to a preparation method for a Beta-cyclodextrin nano-silver antibacterial fabric. The specific steps are as follows: a Beta-cyclodextrin solution, a silver nitrate solution and asodium borohydride solution are prepared in the same volume; the silver nitrate solution is added into the Beta-cyclodextrin solution and stirred, so that a colorless, uniform and transparent solution is obtained; the sodium borohydride solution is dripped into the colorless, uniform and transparent solution to react, so that a Beta-cyclodextrin nano-silver solution is prepared; the obtained Beta-cyclodextrin nano-silver solution is added with water to prepare a Beta-cyclodextrin nano-silver aqueous solution, and cross-linking agent is added into the Beta-cyclodextrin nano-silver aqueous solution and stirred, so that a uniformly mixed antibacterial finishing solution is obtained; and a fabric is dipped and rolled in the antibacterial finishing solution twice, baked, washed and dried, so that the Beta-cyclodextrin nano-silver antibacterial fabric is obtained. The preparation method adopts Beta-cyclodextrin as a protective agent, adopts the chemical reduction method to prepare nano-silver, and carries out antibacterial finishing on the fabric with polycarboxylic acid serving as the cross-linking agent, and after antibacterial finishing, the fabric has good antibacterial durability.

Description

technical field [0001] The invention relates to the field of preparation of nano-silver antibacterial fabrics, in particular to a preparation method of β-cyclodextrin nano-silver antibacterial fabrics. Background technique [0002] With economic development and social progress, people's awareness of hygiene and health has been continuously enhanced, and higher requirements have been put forward for the antibacterial and deodorizing functions of textiles, and many new antibacterial finishing agents have been developed. Silver-based antibacterial agents have the advantages of persistence, broad-spectrum, safety, high efficiency, and resistance to drug resistance. However, elemental silver lacks reactive groups and is difficult to fix on textiles. It is also sensitive to light and easy to absorb. A "color change" reaction occurs. Contents of the invention [0003] The invention aims to solve the deficiencies of the prior art, and provides a preparation method of β-cyclodextr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/03D06M11/80D06M11/83D06M13/192D06M13/207D06M101/06
CPCD06M11/80D06M11/83D06M13/192D06M13/207D06M15/03D06M2101/06
Inventor 司荣美潘中海刘彩风
Owner TIANJIN BAOXINGWEI TECH
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