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Polyethylene composite antibacterial coating and preparation method thereof

A composite antibacterial and polyethylene technology, which is applied in coatings, antifouling/underwater coatings, devices for coating liquids on surfaces, etc., can solve problems such as shedding, pollution, and loss of antibacterial properties

Inactive Publication Date: 2021-05-07
李健
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Polyethylene is a thermoplastic resin obtained by ethylene polymerization. It has good comprehensive properties and is often used as films, sheets, coatings, hollow containers, etc. When used as a coating, due to the properties of polyethylene, It will cause bacteria and other substances to adhere to it, causing pollution, causing the coating to lose its functional properties such as adhesion, and even cause it to fall off. It needs to be treated with antibacterial when it is applied. Antibacterial is to use chemical or physical methods to kill bacteria or hinder The process of bacterial growth and reproduction and its activity, while the existing antibacterial polyethylene coatings generally add antibacterial agents to achieve antibacterial purposes, which will easily cause the loss of antibacterial properties after long-term use

Method used

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  • Polyethylene composite antibacterial coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (1) Preparation of coating:

[0038] Take 16 parts of polyethylene glycol and 21 parts of acrylic acid, add deionized water, and stir at room temperature for 10 minutes to prepare a mixed solution;

[0039] Dissolve 100 parts of polyethylene in N,N-dimethylformamide, add N,N'-methylenebisacrylamide, stir at 70°C for 10 minutes, insert electrodes, and electrify for 5 minutes, where the discharge voltage is 600V and the current 60mV, then react at a constant temperature of 70°C for 4h, take the reaction product and wash and dry it to obtain modified polyethylene;

[0040] Take modified polyethylene and 8 parts of chloroether resin, add xylene and stir thoroughly to prepare the coating;

[0041] (2) Preparation of surface treatment agent:

[0042] (a) Preparation of modified zinc oxide nanocolumns:

[0043] Take the glass sheet for full cleaning and drying as the substrate;

[0044] Blend polyvinyl alcohol and zinc acetate, add deionized water, heat to 80°C and stir fo...

Embodiment 2

[0057] (1) Preparation of coating:

[0058] Take 18 parts of polyethylene glycol and 24 parts of acrylic acid, add deionized water, and stir at room temperature for 15 minutes to prepare a mixed solution;

[0059] Dissolve 100 parts of polyethylene in N,N-dimethylformamide, add N,N'-methylenebisacrylamide, stir at 75°C for 15 minutes, insert electrodes, and electrify for 7 minutes, in which the discharge voltage is 635V and the current 66mV, then react at a constant temperature of 75°C for 4.5h, take the reaction product and wash and dry it to obtain modified polyethylene;

[0060] Take modified polyethylene and 11 parts of chloroether resin, add xylene and stir thoroughly to prepare the coating;

[0061] (2) Preparation of surface treatment agent:

[0062] (a) Preparation of modified zinc oxide nanocolumns:

[0063] Take the glass sheet for full cleaning and drying as the substrate;

[0064] Blend polyvinyl alcohol and zinc acetate, add deionized water, heat to 87°C and s...

Embodiment 3

[0077] (1) Preparation of coating:

[0078] Take 20 parts of polyethylene glycol and 28 parts of acrylic acid, add deionized water, and stir at room temperature for 20 minutes to prepare a mixed solution;

[0079] Dissolve 100 parts of polyethylene in N,N-dimethylformamide, add N,N'-methylenebisacrylamide, stir at 80°C for 20 minutes, insert electrodes, and electrify for 10 minutes, where the discharge voltage is 670V and the current 72mV, then reacted at a constant temperature of 80°C for 5h, and the reaction product was washed and dried to obtain modified polyethylene;

[0080] Take modified polyethylene and 15 parts of chloroether resin, add xylene and stir thoroughly to prepare the coating;

[0081] (2) Preparation of surface treatment agent:

[0082] (a) Preparation of modified zinc oxide nanocolumns:

[0083] Take the glass sheet for full cleaning and drying as the substrate;

[0084] Blend polyvinyl alcohol and zinc acetate, add deionized water, heat to 95°C and sti...

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Abstract

The invention discloses a polyethylene composite antibacterial coating and a preparation method thereof, the coating is prepared from a paint and a surface treating agent, the paint comprises the following components by weight: 100 parts of polyethylene, 16-20 parts of polyethylene glycol, 21-28 parts of acrylic acid, and 8-15 parts of chlorinated polyether resin. According to the invention, by setting the coating components and the preparation process, a double-layer coating structure is formed, and the nanorods are arranged; polyethylene is subjected to hydrophilic modification through material components, heavy metal ions can be adsorbed, a flexible, water-resistant and weather-resistant coating base layer is prepared after the polyethylene is blended with chlorinated polyether resin, a hydrophilic and waterproof coating top layer is prepared from the surface treating agent through the material components, and adsorption of amphiphilic substances such as protein can be prevented through hydrophilicity of the coating, the antifouling effect is achieved, the cleanliness of the coating is kept, survival of bacteria is not facilitated, and thus the antibacterial effect is achieved; and the nanorods are zinc oxide modified by lead and ferroferric oxide, and can puncture cell walls of bacteria to achieve a sterilizing effect.

Description

technical field [0001] The invention relates to the technical field of antibacterial coatings, in particular to a polyethylene composite antibacterial coating and a preparation method thereof. Background technique [0002] Polyethylene is a thermoplastic resin obtained by ethylene polymerization. It has good comprehensive properties and is often used as films, sheets, coatings, hollow containers, etc. When used as a coating, due to the properties of polyethylene, It will cause bacteria and other substances to adhere to it, causing pollution, causing the coating to lose its functional properties such as adhesion, and even cause it to fall off. It needs to be treated with antibacterial when it is applied. Antibacterial is to use chemical or physical methods to kill bacteria or hinder The process of bacterial growth and reproduction and its activity, while the existing antibacterial polyethylene coatings generally add antibacterial agents to achieve antibacterial purposes, whic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D151/06C09D7/65C09D151/02C09D5/14B05D5/00B05D7/24
CPCB05D5/00B05D7/24B05D7/544B05D2507/015B05D2518/00C08K2003/2296C08K2201/011C09D5/14C09D151/02C09D151/06C09D7/65C08L51/08C08L27/06C08K9/02C08K7/00C08K3/22B05D2420/01B05D2420/02
Inventor 李健
Owner 李健
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