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Preparation method for polymer reduction nanometer silver antibiotic finishing agent and uses thereof

A nano-silver antibacterial and polymer technology, applied in adhesive additives, non-polymer adhesive additives, fiber treatment, etc., can solve problems such as skin and eye irritation, poor stability, and insignificant antibacterial effect

Active Publication Date: 2009-02-18
多喜爱家居用品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Natural antibacterial agents mainly come from natural extracts, and the antibacterial effect is not obvious; organic antibacterial agents have obvious bactericidal effect in a short period of time, but have poor stability, certain toxicity and volatility, and are easy to cause skin and eye irritation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Preparation of nano-silver finishing agent and antibacterial fabric by poly(hydroxyethyl methacrylate) method

[0014] Add 20ml of hydroxyethyl methacrylate and 250ml of ethanol to a 500ml three-neck flask, add 0.2g of azoisobutyronitrile, replace the oxygen in the flask with high-purity nitrogen for 3 times under ultrasonic degassing, and protect the flask with high-purity nitrogen at 70°C Polymerize at low temperature for 7 hours to obtain a polymer solution. Concentrate the polymer, precipitate it with cyclohexane, purify it, and dry it in a vacuum oven at 50° C. for 48 hours to obtain a homopolymer. Weigh 10 grams of polymer and dissolve it in 100 ml of ethanol to prepare a polymer solution, add 3 grams of silver nitrate, and react at 60° C. for 10 hours to prepare nano-silver colloid. The prepared polymer stably dispersed nano-silver colloid is diluted, loaded on fabrics, and treated to obtain antibacterial fabrics.

Embodiment 2

[0016] Preparation of nano-silver finishing agent and antibacterial fabric by poly(hydroxyethyl acrylate) method

[0017] Add 20ml of hydroxyethyl acrylate and 250ml of ethanol to a 500ml three-neck flask, add 0.2g of azoisobutyronitrile, replace the oxygen in the flask with high-purity nitrogen for 3 times under ultrasonic degassing, and polymerize under the protection of high-purity nitrogen at 70°C After 7 hours, a polymer solution was obtained. The polymer was concentrated, precipitated with cyclohexane, purified, and dried in a vacuum oven at 50° C. for 48 hours to obtain a polymer. Weigh 10 grams of polymer and dissolve it in 100 ml of ethanol to prepare a polymer solution, add 4 grams of silver nitrate, and react at 60° C. for 10 hours to prepare nano-silver colloid. The prepared polymer stably dispersed nano-silver colloid is diluted, loaded on fabrics, and treated to obtain antibacterial fabrics.

Embodiment 3

[0019] Preparation of nano-silver finishing agent and antibacterial fabric by polyhydroxypropyl methacrylate method

[0020] Add 20ml of hydroxypropyl methacrylate, 250ml of ethanol, 0.2g of azoisobutyronitrile into a 500ml three-necked flask, and replace the oxygen in the flask with high-purity nitrogen for 3 times under ultrasonic degassing. Polymerize for 7 hours to obtain a polymer solution. The polymer is concentrated, precipitated with cyclohexane, purified, and dried in a vacuum oven at 50° C. for 48 hours to obtain a homopolymer. Weigh 10 grams of polymer and dissolve it in 100 ml of ethanol to prepare a polymer solution, add 4 grams of silver nitrate, and react at 60° C. for 10 hours to prepare nano-silver colloid. Dilute the prepared polymer stably dispersed nano-silver colloid, attach it to the fabric, and obtain antibacterial fabric after treatment.

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Abstract

The invention discloses a method for preparing polymer deoxidized nano silver antibacterial finishing agent and the application thereof, including the following steps: (1) under the initiation of initiator at temperature of 50-150 DEG C, homopolyerizing hydroxyl methacrylate or acrylic ester, or copolymerizing with other hydroxyl acrylic ester or methacrylate monomer to produce polymer which contains methacrylate hydroxyl ester; (2)preparing the polymer into solution, adding silver salt and co-reducing agent to initiate reaction, so as to deoxidize silver ions into stable polymer simple-substance nano silver antibacterial finishing agent; and (3)attaching the stable polymer simple-substance nano silver antibacterial finishing agent onto fabric to prepare ramie cotton fabric with excellent antibacterial performance. The fabric made from the antibacterial finishing agent is excellent in antibacterial effect and has broad-spectrum antibacterial effect.

Description

technical field [0001] The invention relates to the technical field of nanomaterials and nanoantibacteria, in particular to a preparation method and application of a polymer-reduced nanosilver antibacterial finishing agent. Background technique [0002] Harmful bacteria threaten human health and life, and various bacteria continue to multiply and mutate, which brings higher requirements for antibacterial finishing of textiles. New antibacterial agents with good antibacterial effect, non-dissolution, non-volatility, non-toxicity and no drug resistance are the current research direction. Antibacterial agents have developed from the initial natural antibacterial agents to organic compound antibacterial agents, then to polymer antibacterial agents, and then to inorganic nanoscale antibacterial agents. Natural antibacterial agents mainly come from natural extracts, and the antibacterial effect is not obvious; organic antibacterial agents have obvious bactericidal effect in a sho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/83D06M15/263C08F120/14C08F2/44C08K3/08C09D7/12C09J11/04D06M101/06
Inventor 魏珊珊汤建新苏伟曾晓希张敏
Owner 多喜爱家居用品有限公司