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Silver-containing nanocomposite antibacterial coating and preparation method thereof

A composite antibacterial and silver nanotechnology, used in coatings, paints containing biocides, antifouling/underwater coatings, etc. Effect, low cost, high mechanical strength effect

Active Publication Date: 2021-03-30
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the dispersion methods reported so far are surface modification of nanoparticles. Most of these methods are complicated to operate, with cumbersome steps, great environmental pollution, and bring a lot of inconvenience to the preparation of nanocomposite coatings.

Method used

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  • Silver-containing nanocomposite antibacterial coating and preparation method thereof
  • Silver-containing nanocomposite antibacterial coating and preparation method thereof
  • Silver-containing nanocomposite antibacterial coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Preparation of P (Mma-Co-Ba-Co-MAMS) / Ag Nanocomposite Antibacterial Coating:

[0041] (1) Weigh 0.5 g mams, 0.057 g of initiator KPS, dissolved in 50 ml of deionized water, and then weigh 5 g of oxycrylate and 5 g of methyl methacrylate, added to 100 ml of four flasks, at 700 rpm The rotational speed was prepared for 2 h, and the pre-emulsion was added to the constant pressure drip funnel after completion;

[0042] (2) 0.5 g of nanoparticles and 0.5 g mams were dispersed in 50 ml deionized water, and the ultrasonic dispersion of JY92-II N-type ultrasonic cell pulverizer was used. The set parameters were: power 600W, working hours 3s, intermittent time 2s, Ultrasound is 30 minutes in an ice bath, and the ultrasonic dispersion is added to 250 ml of four flasks; 5 g of butyl acrylate and 5 g of methyl methacrylate are added, and in a 250 ml of four flasks, the normal temperature water bath pre-emulsified 0.5h, set After the stirring speed is 700 rpm, after 0.5 h, the tempera...

Embodiment 2

[0046] (1) Weigh 0.5 g mams, 0.057 g of initiator KPS, dissolved in 50 ml of deionized water, and then weigh 5 g of oxycrylate and 5 g of methyl methacrylate, added to 100 ml of four flasks, at 700 rpm The rotational speed was prepared for 2 h, and the pre-emulsion was added to the constant pressure drip funnel after completion;

[0047] (2) 0.25 g of nanoparticles and 0.5 g mams were dispersed in 50 ml deionized water, and the ultrasonic dispersion of JY92-II N-type ultrasonic cell pulverizer was used. The set parameters were: power 600W, working hours 3s, intermittent time 2s, Ultrasound is 30 minutes in an ice bath, and the ultrasonic dispersion is added to 250 ml of four flasks; 5 g of butyl acrylate and 5 g of methyl methacrylate are added, and in a 250 ml of four flasks, the normal temperature water bath pre-emulsified 0.5h, set After the stirring speed is 700 rpm, after 0.5 h, the temperature is started; the temperature reaches 65 ° C, weighs 0.057 g kps, dissolved in a sma...

Embodiment 3

[0051] (1) Weigh 0.5 g mams, 0.057 g of initiator KPS, dissolved in 50 ml of deionized water, and then weigh 5 g of oxycrylate and 5 g of methyl methacrylate, added to 100 ml of four flasks, at 700 rpm The rotational speed was prepared for 2 h, and the pre-emulsion was added to the constant pressure drip funnel after completion;

[0052] (2) 1.0 g of nanoparticles and 0.5 g mams were dispersed in 50 ml deionized water, and the ultrasonic dispersion of JY92-II N-type ultrasonic cell pulverizer was used. The set parameters were: power 600W, working time 3s, intermittent time 2s, Ultrasound is 30 minutes in an ice bath, and the ultrasonic dispersion is added to 250 ml of four flasks; 5 g of butyl acrylate and 5 g of methyl methacrylate are added, and in a 250 ml of four flasks, the normal temperature water bath pre-emulsified 0.5h, set After the stirring speed is 700 rpm, after 0.5 h, the temperature is started; the temperature reaches 66 ° C, weigh 0.057 g kps, dissolve in a small a...

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Abstract

The invention discloses a silver-containing nanometer composite antibacterial coating and a preparation method thereof. The preparation method comprises: synthesizing a maleic acid mono-fatty alcoholester sodium salt methyl methacrylate by using polyacrylate and polymethyl methacrylate as a polyacrylate copolymerization matrixes, wherein the methyl methacrylate used as both a polymerizable emulsifier and an auxiliary comonomer regulates the dispersion of Ag nanoparticles in the polymer matrix through electrostatic interaction and steric hindrance interaction; preparing a nanometer composite emulsion through semi-continuous emulsion polymerization; preparing a nanometer composite coating by using butyl acrylate and polymethyl methacrylate as the main components of the coating through an emulsion polymerization method; and dispersing Ag nanoparticles in the polymer matrix to prepare the high-dispersion nanometer composite antibacterial coating.

Description

Technical field [0001] The present invention relates to the field of nanocomposites, and more particularly to a silver nano-composite antibacterial coating and a preparation method thereof. Background technique [0002] With the continuous improvement of human living, people have higher requirements for living, working, living environment and health health. In the natural environment, microorganisms such as bacteria, fungi are widely distributed, but these microorganisms have not only brought great destruction to various materials, but also due to various diseases caused by microbial effects. harm. As an important building, coating is widely used in all aspects of furniture production, material packaging in daily life. At the same time, the application of antibacterial coatings is increasingly concerned about people's considerations for their own safety and environmental protection. [0003] At present, the antibacterial coating is mainly an antibacterial coating, mainly by addin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/08C09D133/12C09D5/14C08F220/18C08F220/14C08F222/16C08F2/24
CPCC08F2/24C08F220/14C08F220/18C08K2003/0806C08K2201/011C09D5/14C09D133/08C09D133/12C08K3/08
Inventor 郑俊萍陈雨
Owner TIANJIN UNIV
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