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Water-based sterilization finishing agent based on modified nano silver and preparation method and application thereof

A technology of nano-silver and finishing agent, which is applied in fiber treatment, biochemical fiber treatment, textile and paper making, etc., can solve the problem of limiting fiber types, and achieve the effect of good elasticity, hand feeling, and long-term bactericidal effect.

Active Publication Date: 2018-05-29
SHANGHAI UNIV OF ENG SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that it limits the type of fiber

Method used

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  • Water-based sterilization finishing agent based on modified nano silver and preparation method and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] 1. The nano-silver in the preparation process of nano-silver is nano-silver powder coated with silicon dioxide, and the preparation process is as follows:

[0065] A1, nano-silver is made into the suspension of 0.05mmol / L with deionized water;

[0066] A2, use ultrasonic wave to disperse for 30 minutes, add absolute ethanol, continue to disperse for 10 minutes, and then raise the temperature to 40°C with magnetic stirring;

[0067] A3, adjust the pH value of the suspension to 10 with ammonia water; immediately add 0.0574g tetrabutyl silicate (TEOS) and continue magnetic stirring for 2 hours, the color turns orange.

[0068] A4, the solution was centrifuged and dried in vacuum to obtain black Ag@SiO2 powder.

[0069] 2. The process of processing the modification of nano-silver is:

[0070] B1, nano-silver Ag@SiO coated with silicon oxide 2 Use absolute ethanol to prepare a 0.3mg / L solution;

[0071] B2, stir and disperse with magnetic force for 30 minutes, then dispe...

Embodiment 2

[0082] 1. The nano-silver in the preparation process of nano-silver is nano-silver powder coated with silicon dioxide, and the preparation process is as follows:

[0083] A1, nano-silver is made into the suspension of 0.05mmol / L with deionized water;

[0084] A2, use ultrasonic wave to disperse for 30 minutes, add absolute ethanol, continue to disperse for 10 minutes, and then raise the temperature to 40°C with magnetic stirring;

[0085] A3, adjust the pH value of the suspension to 10 with ammonia water; immediately add 0.0574g tetrabutyl silicate (TEOS) and continue magnetic stirring for 2 hours, the color turns orange.

[0086] A4, the solution was centrifuged and dried in vacuum to obtain black Ag@SiO2 powder.

[0087] 2. The process of processing the modification of nano-silver is:

[0088] B1, the nano-silver Ag@SiO coated with silicon oxide is prepared into a 0.3mg / L solution using absolute ethanol;

[0089] B2, stir and disperse with magnetic force for 30 minutes, t...

Embodiment 3

[0100] 1. The nano-silver in the preparation process of nano-silver is nano-silver powder coated with silicon dioxide, and the preparation process is as follows:

[0101] A1, nano-silver is made into the suspension of 0.05mmol / L with deionized water;

[0102] A2, use ultrasonic wave to disperse for 30 minutes, add absolute ethanol, continue to disperse for 10 minutes, and then raise the temperature to 40°C with magnetic stirring;

[0103] A3, adjust the pH value of the suspension to 10 with ammonia water; immediately add 0.0574g tetrabutyl silicate (TEOS) and continue magnetic stirring for 2 hours, the color turns orange.

[0104] A4, the solution was centrifuged and dried in vacuum to obtain black Ag@SiO2 powder.

[0105] 2. The process of processing the modification of nano-silver is:

[0106] B1, the nano-silver Ag@SiO coated with silicon oxide is prepared into a 0.3mg / L solution using absolute ethanol;

[0107] B2, stir and disperse with magnetic force for 30 minutes, t...

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Abstract

The invention belongs to the technical field of chemical engineering, and relates to a preparation method of a sterilization finishing agent, in particular to a water-based sterilization finishing agent based on modified nano silver and a preparation method and application thereof. The preparation method of the water-based sterilization finishing agent based on the modifed nano silver includes thesteps of weighing components, wherein the components are composed of, by weight, 0.00001-5% of modified nano silver, 20-80% of water-based urethane acrylate, 0.05-5% of photoinitiator and 10-79.95% of water; evenly blending water-based urethane acrylate, modified nano silver, photoinitiator and the water. The water-based sterilization finishing agent based on the modified nano silver can be driedat low temperature on the surface of a substrate and formed into a membrane under UV radiation. The formed membrane has great elasticity and hand feeling, and the nano silver can evenly and stably exist in the membrane and has a sterilization function for a long time.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and relates to a preparation method of a bactericidal finishing agent, in particular to a water-based bactericidal finishing agent based on modified nano-silver, a preparation method and an application. Background technique [0002] Silver has broad-spectrum antibacterial properties, and has the unique persistence, persistence, and broad-spectrum properties of inorganic antibacterial materials. It is not easy to produce drug resistance, good heat resistance, and high safety. Due to its special size, nano-silver has a larger specific surface area and more obvious mobility flexibility. Its bactericidal effect is widely used, especially in the textile industry. There are many ways to use nano-silver to finish fabrics. One is to use in-situ reaction to generate nano-silver particles and deposit them on polyester fabrics. The problem with this method is that the washing of fabrics will affec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/572D06M11/83D06M11/79D06M13/513
CPCD06M11/79D06M11/83D06M13/5135D06M15/572D06M16/00
Inventor 刘岩雪蒙辛斌杰
Owner SHANGHAI UNIV OF ENG SCI
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