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Antibacterial and antivirus powder coating and preparation process thereof

A technology of powder coating and antibacterial agent, applied in powder coatings, polyester coatings, paints containing biocides, etc., can solve the problems of uniform dispersion and persistence, affecting the antibacterial and antiviral effect of powder coatings, etc., to improve the uniformity and durability, high resistance to dissolution, improved uniform dispersion and adhesion

Inactive Publication Date: 2020-11-24
ANHUI HUAHUI SUYE TECH SHARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, common antimicrobial agents mixed in have relatively large defects in the uniform dispersion and persistence in powder coatings, thus affecting the antibacterial and antibacterial effects of powder coatings.

Method used

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  • Antibacterial and antivirus powder coating and preparation process thereof
  • Antibacterial and antivirus powder coating and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0046] The preparation technology of this powder coating comprises the steps:

[0047] The first step is to weigh the polyester resin, antibacterial agent, graphene, coupling agent, curing agent and leveling agent in the proportion of parts by weight and put them into the high-speed mixer, first stir and mix at 300r / min for 20-25min, and then Increase the rotation speed to 2000r / min and stir and mix for 8-10min to obtain the premix;

[0048] The second step is to extrude the premixed material through a twin-screw extruder to become a flake material, which is pulverized, ground, and passed through a 200-mesh sieve to obtain a fine powder to obtain a powder coating.

Embodiment 1

[0050] An antibacterial and antivirus powder coating, comprising the following raw materials in parts by weight: 60 parts of polyester resin, 3 parts of antibacterial agent, 4 parts of graphene, 1.6 parts of coupling agent, 5 parts of curing agent, and 1 part of leveling agent;

[0051] The powder coating is made by the following steps:

[0052] The first step is to weigh the polyester resin, antibacterial agent, graphene, coupling agent, curing agent and leveling agent into the high-speed mixer according to the proportion of parts by weight, first stir and mix at 300r / min for 20min, and then increase the speed Stir and mix at 2000r / min for 8min to obtain a premix;

[0053] The second step is to extrude the premixed material through a twin-screw extruder to become a flake material, which is pulverized, ground, and passed through a 200-mesh sieve to obtain a fine powder to obtain a powder coating.

Embodiment 2

[0055] An antibacterial and antivirus powder coating, comprising the following raw materials in parts by weight: 65 parts of polyester resin, 3.5 parts of antibacterial agent, 4.5 parts of graphene, 1.8 parts of coupling agent, 5.5 parts of curing agent, and 1.1 parts of leveling agent;

[0056] The powder coating is made by the following steps:

[0057] The first step is to weigh the polyester resin, antibacterial agent, graphene, coupling agent, curing agent and leveling agent into the high-speed mixer according to the proportion of parts by weight, first stir and mix at 300r / min for 23min, and then increase the speed Stir and mix at 2000r / min for 9min to obtain a premix;

[0058] The second step is to extrude the premixed material through a twin-screw extruder to become a flake material, which is pulverized, ground, and passed through a 200-mesh sieve to obtain a fine powder to obtain a powder coating.

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Abstract

The invention discloses an antibacterial and antivirus powder coating. The antibacterial and antivirus powder coating comprises the following components in parts by weight: 60-70 parts of polyester resin, 3-4 parts of an antibacterial agent, 4-5 parts of graphene, 1.6-2 parts of a coupling agent, 5-6 parts of a curing agent and 1-1.2 parts of a leveling agent. The invention further discloses a preparation process of the powder coating. Polyester resin synthesized by using different polyhydric alcohols and polyatomic acids as raw material is used as a film-forming matrix of the coating, so thatthe water resistance, the weather resistance and the mechanical property of the coating can be effectively improved; a self-made antibacterial agent is added into the coating, and the antibacterial agent is a macromolecular quaternary phosphonium salt antibacterial agent, has efficient antibacterial performance, has good compatibility with a coating matrix, has relatively high dissolution resistance, and endows the coating with a good antibacterial effect and antibacterial durability; and through the auxiliary matching of other auxiliary agents, the prepared coating has antibacterial and antivirus effects on the basis of weather resistance, water resistance and high mechanical properties.

Description

technical field [0001] The invention belongs to the field of powder coatings, and in particular relates to an antibacterial and antivirus powder coating and a preparation process thereof. Background technique [0002] Powder coating is a new type of solvent-free, pure solid powder coating composed of polymers, pigments and additives; it has the characteristics of no solvent, no pollution, saving energy and resources, reducing labor intensity and high mechanical strength of the coating film. The antibacterial function of paint is mainly achieved by adding antibacterial agents to paint. At present, there are three main types of antibacterial agents: natural antibacterial agents, organic antibacterial agents and inorganic antibacterial agents. Natural antibacterial agents are mainly propolis and allicin in animals and plants. Extract; organic antibacterial agents are mainly organic compounds such as organic acids, phenols, organic amines and isothiazolinones; inorganic antibact...

Claims

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Application Information

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IPC IPC(8): C09D5/14C09D5/03C09D167/02C09D7/61C08G63/685C08G63/78C08F130/02
CPCC08F130/02C08G63/6856C08G63/78C09D5/033C09D5/14C09D167/02C08L43/02C08K3/042
Inventor 费邦忠周正华查全达费安道
Owner ANHUI HUAHUI SUYE TECH SHARE CO LTD
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