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Nano zinc oxide/silver composite antibacterial agent and preparation method thereof

A technology of nano-zinc oxide and composite antibacterial agent, which is applied in the directions of plant fibers, textiles, papermaking, fiber treatment, etc., can solve the problems of polluting textiles, etc., achieves improved washing resistance, simple and easy preparation method, and is environmentally friendly and harmless Effect

Active Publication Date: 2020-01-07
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a nano-zinc oxide / silver composite antibacterial agent and its preparation method, endow cotton fabrics with good antibacterial properties, and solve the problem of various microorganisms and bacterial molds polluting textiles

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The first step: preparation of epoxidized nano zinc oxide:

[0035] Dissolving 1.000 parts by mass of nano-zinc oxide in 30.000 parts by mass of deionized water, and ultrasonicating for 10 minutes to obtain an aqueous solution of zinc oxide;

[0036] Dissolve 0.010 parts by mass of KH-560 in 20 parts by mass of deionized water and 2 parts by mass of ethanol, and pre-hydrolyze for 1 hour to obtain an aqueous solution of KH-560;

[0037] Add the nano-zinc oxide solution obtained by ultrasound into a 250mL three-necked flask, and react at a stirring speed of 30rpm at a water temperature of 85°C, then slowly add the pre-hydrolyzed KH-560 aqueous solution into the three-necked flask dropwise within 30min, dropwise After the completion of the heat preservation reaction for 1 h, and finally cooled to room temperature, a milky white suspension was obtained, that is, an aqueous solution of epoxidized nano-zinc oxide.

[0038] The second step: the preparation of nano-zinc oxide / ...

Embodiment 2

[0043] The first step: preparation of epoxidized nano zinc oxide:

[0044] Dissolving 1.000 parts by mass of nano-zinc oxide in 30.000 parts by mass of deionized water, and ultrasonicating for 10 minutes to obtain an aqueous solution of zinc oxide;

[0045] Dissolve 0.020 parts by mass of KH-560 in 20 parts by mass of deionized water and 2 parts by mass of ethanol, and pre-hydrolyze for 1 hour to obtain an aqueous solution of KH-560;

[0046] Add the nano-zinc oxide solution obtained by ultrasound into a 250mL three-necked flask, and react at a stirring speed of 30rpm at a water temperature of 85°C, then slowly add the pre-hydrolyzed KH-560 aqueous solution into the three-necked flask dropwise within 30min, dropwise After the completion of the heat preservation reaction for 1 h, and finally cooled to room temperature, a milky white suspension was obtained, that is, an aqueous solution of epoxidized nano-zinc oxide.

[0047] The second step: the preparation of nano-zinc oxide / ...

Embodiment 3

[0052] The first step: preparation of epoxidized nano zinc oxide:

[0053] Dissolving 1.000 parts by mass of nano-zinc oxide in 30.000 parts by mass of deionized water, and ultrasonicating for 10 minutes to obtain an aqueous solution of zinc oxide;

[0054] Dissolve 0.030 parts by mass of KH-560 in 20 parts by mass of deionized water and 2 parts by mass of ethanol, and pre-hydrolyze for 1 hour to obtain an aqueous solution of KH-560;

[0055] Add the nano-zinc oxide solution obtained by ultrasound into a 250mL three-necked flask, and react at a stirring speed of 30rpm at a water temperature of 85°C, then slowly add the pre-hydrolyzed KH-560 aqueous solution into the three-necked flask dropwise within 30min, dropwise After the completion of the heat preservation reaction for 1 h, and finally cooled to room temperature, a milky white suspension was obtained, that is, an aqueous solution of epoxidized nano-zinc oxide.

[0056] The second step: the preparation of nano-zinc oxide / si...

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PUM

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Abstract

The invention relates to a nano zinc oxide / silver composite antibacterial agent and a preparation method thereof. The method includes: firstly taking nano zinc oxide and a silane coupling agent KH-560 as the raw materials to prepare epoxidized nano zinc oxide; then taking silver nitrate, epoxidized nano zinc oxide and sodium citrate as the raw materials to prepare the nano zinc oxide / silver composite antibacterial agent through a chemical reduction process. According to the invention, the nano zinc oxide / silver composite antibacterial agent is applied to antibacterial finishing of cotton fabrics, and through the synergistic antibacterial effect of ZnO and Ag, synergistic antibacterial, the broad-spectrum properties and high efficiency of the antibacterial agent can be improved. And through crosslinking of the epoxy group on the nano ZnO surface and the hydroxyl on a cotton fabric surface, the antibacterial performance and washing resistance of the cotton fabric can be improved. The preparation method is simple and practicable, the cost is low, and the preparation process is friendly and harmless to the environment.

Description

technical field [0001] The invention relates to an antibacterial agent for cotton fabrics, in particular to a nano zinc oxide / silver composite antibacterial agent and a preparation method thereof. Background technique [0002] Textiles are deeply loved by people because of their good comfort and aesthetics, and they have a large demand in the market. However, the porous shape of textiles is a good carrier for the growth of various microorganisms and bacteria and molds. They will not only pollute textiles, but also affect textiles. The quality of textiles will change color or moldy, etc., and these bacteria and molds will also affect human health through the transmission of textiles. Therefore, daily and medical textiles have a huge demand for antibacterial agents. [0003] Nano-ZnO has low price, surface effect, small size effect, quantum effect and macroscopic quantum tunneling effect, showing many special excellent properties, such as non-toxic, non-migratory, antibacteria...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M11/65D06M11/44D06M13/207D06M101/06
CPCD06M11/44D06M11/65D06M13/207D06M2101/06
Inventor 高党鸽刘静静李亚娟吕斌马建中
Owner SHAANXI UNIV OF SCI & TECH