A kind of weather-resistant antibacterial powder coating and preparation method thereof

An antibacterial powder and coating technology, used in powder coatings, polyester coatings, anti-corrosion coatings, etc.

Active Publication Date: 2020-10-23
佛山市涂亿装饰材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And the quaternary phosphonium salt that is composed of the same family element phosphorus as the nitrogen element has antibacterial properties equally, but is rarely used in the field of powder coatings, therefore, a quaternary phosphonium salt antibacterial agent is applied in the powder coating to prepare a kind of antibacterial Powder coating is of great significance

Method used

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  • A kind of weather-resistant antibacterial powder coating and preparation method thereof
  • A kind of weather-resistant antibacterial powder coating and preparation method thereof
  • A kind of weather-resistant antibacterial powder coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A weather-resistant antibacterial powder coating, by weight percentage, said coating comprises the following raw materials:

[0035]

[0036] The epoxy-modified acrylic resin is based on 2-ethyl methacrylate, acrylic acid, ethyl acrylate, butyl acrylate, styrene, hydroxypropyl acrylate, and trimethylolpropane triacrylate as monomers. Benzoyl is used as an initiator, bisphenol A epoxy resin is used as a modifier, and a thermosetting epoxy-modified acrylic resin is obtained through polymerization. Wherein, the raw materials for preparing the epoxy-modified acrylic resin include 20-30 parts of ethyl methacrylate, 25-30 parts of acrylic acid, 10-15 parts of ethyl acrylate, 5-10 parts of butyl acrylate, styrene 15-20 parts, 10-15 parts of hydroxypropyl acrylate and 1-3 parts of trimethylolpropane triacrylate, 1-7 parts of benzoyl peroxide, 20-30 parts of bisphenol A type epoxy resin, said Bisphenol A type epoxy resin is epoxy resin E-51.

[0037] The polyester resin is ...

Embodiment 2

[0057] On the basis of embodiment 1, present embodiment 2 is as a preferred embodiment of the present invention, a kind of weather-resistant antibacterial powder coating, and by weight percentage, described coating comprises following raw material:

[0058]

[0059] Wherein, the epoxy-modified acrylic resin consists of 25 parts of ethyl methacrylate, 28 parts of acrylic acid, 13 parts of ethyl acrylate, 8 parts of butyl acrylate, 17 parts of styrene, 12 parts of hydroxypropyl acrylate and three 2 parts of trimethylolpropane acrylate, 4 parts of benzoyl peroxide, and 25 parts of bisphenol A type epoxy resin are obtained through polymerization; It is obtained through melt polycondensation reaction with polyol according to the weight ratio of 30:58:7:2.5;

[0060] In the preparation process of the quaternary phosphonium salt antibacterial agent, the para substituent in the para-substituted toluene is F;

[0061] In the preparation method of the weather-resistant and antibacte...

Embodiment 3

[0069] On the basis of embodiment 2, present embodiment 3 is as a preferred embodiment of the present invention, a kind of weather-resistant antibacterial powder coating, by weight percentage, described powder coating comprises following raw material:

[0070]

[0071]

[0072] Wherein, the epoxy-modified acrylic resin consists of 30 parts of ethyl methacrylate, 30 parts of acrylic acid, 15 parts of ethyl acrylate, 10 parts of butyl acrylate, 20 parts of styrene, 15 parts of hydroxypropyl acrylate and three 3 parts of trimethylolpropane acrylate, 7 parts of benzoyl peroxide, and 30 parts of bisphenol A type epoxy resin are obtained through polymerization; It is obtained through melt polycondensation reaction with polyol according to the weight ratio of 20:65:2.1:3.5;

[0073] In the preparation process of the quaternary phosphonium salt antibacterial agent, the para substituent in the para-substituted toluene is Cl;

[0074] The preparation method of described powder co...

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Abstract

The invention discloses a weather-resistant antibacterial powder coating and a preparation method thereof, and relates to the field of powder coatings. The coating comprises, by weight, 30-45 parts ofepoxy modified acrylic resin, 20-35 parts of polyester resin, 0.2-1.5 parts of quaternary phosphonium salt antibacterial agents, 0.5-1 part of antibacterial synergists, 2-8 parts of curing agents, 0.5-3 parts of accelerants, 0.5-3 parts of flatting agents, 5-15 parts of pigments and 5-15 parts of fillers. The quaternary phosphonium salt antibacterial agents replace inorganic silver iron antibacterial agents, the antibacterial synergists serve as auxiliary materials, heavy metal pollution possibly caused by silver ion release is overcome, and the coating has good lasting antibacterial effects.The epoxy modified acrylic resin and the polyester resin with proper functionality and acid values are selected as base components of the powder coating, the dosage of the rest components is selectedand adjusted, so that the prepared powder coating has good antibacterial property, strong weather resistance and great application values and popularization prospects and is a novel antibacterial coating, and excellent ornamental features are ensured.

Description

technical field [0001] The invention belongs to the field of powder coatings, and in particular relates to a weather-resistant and antibacterial powder coating and a preparation method thereof. Background technique [0002] As human beings pay more and more attention to their own health, the living environment in which we get along day and night has also attracted more and more attention. A survey of microbial pollution in the living room showed that the total number of antibacterial bacteria in rural areas was 138.94cfu / cm 2 , town is 72.10cfu / cm 2 . It can be seen that the pollution caused by microorganisms in the living room environment cannot be ignored. Antibacterial coatings can be directly coated on various materials, and have attracted much attention because of their ease of use. The development of coatings with antibacterial functions is one of the development directions of the coatings industry. [0003] Both powder coatings and water-based coatings have the ad...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/02C09D163/00C09D167/00C09D5/03C09D5/14C09D5/08
CPCC08L2205/03C09D5/033C09D5/08C09D5/14C09D133/02C09D167/00C08L63/00C08L67/00C08K5/50C08L33/02
Inventor 吴延军
Owner 佛山市涂亿装饰材料科技有限公司
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