Powder coating with antibacterial function and preparation method and application thereof

A powder coating and functional technology, applied in powder coatings, polyester coatings, epoxy resin coatings, etc., can solve the problems of poor heat resistance and durability, poor thermal stability of organic antibacterial agents, and easy volatilization of organic antibacterial agents , to achieve good thermal stability, improve the stability of the coating film, and improve the effect of crosslinking performance

Inactive Publication Date: 2010-03-10
TIGER DRYLAC TAICANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its heat-resistant stability and service durability are poor, so it is not suitable to be used as an antibacterial additive in powder coatings; if an organic antibacterial agent is used, the thermal stability of the organic antibacterial agent is poor during the baking powder coating process, and the organic antibacterial agent is easy to volatilize at high temperature , has obvious poison and pollution to the operating workers and the surrounding environment

Method used

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  • Powder coating with antibacterial function and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] 1. The ratio of parts by weight of powder coating with antibacterial function:

[0040] 93 parts of polyester resin

[0041] Polyester resin curing agent 7 parts

[0042] Antibacterial color masterbatch 6 parts

[0043] Leveling agent 2 parts

[0044] 4.5 parts of defoamer

[0045] 30 parts of pigments and fillers

[0046] 2. Preparation of powder coating with antibacterial function:

[0047] ①Put the polyester resin, polyester resin curing agent, antibacterial agent color masterbatch, leveling agent, defoamer and pigments and fillers into the mixing tank (1) according to the parts by weight described in the above 1, and then put them into the mixing tank (1) by extrusion After the extruder (2) is co-extruded, it is cooled by the blower fan (3), and the cold air can also be sent by the heat exchanger (4) for further cooling to obtain the tablet material;

[0048] ②Take the tablet material obtained in step ①, pass it through the auxiliary mill (5) for preliminary gri...

Embodiment 2

[0051] 1. The ratio of parts by weight of powder coating with antibacterial function:

[0052] Fluorocarbon resin 20 parts

[0053] Acrylic resin 40 parts

[0054] Isocyanate curing agent 12 parts

[0055] Antibacterial color masterbatch 2 parts

[0056] Leveling agent 0.5 parts

[0057] 1 part defoamer

[0058] 4 parts of pigment and filler

[0059] 2. Preparation of powder coating with antibacterial function:

[0060] ①Put the resin, curing agent, antibacterial agent color masterbatch, leveling agent, defoamer and pigments and fillers into the mixing tank (1) according to the parts by weight described in the above 1, and then pass through the extruder (2) After co-extrusion, it is cooled by the blower fan (3), and the heat exchanger (4) can also be used to transport cold air for further cooling to obtain a tablet material;

[0061] ②Take the tablet material obtained in step ①, pass it through the auxiliary mill (5) for preliminary grinding, and then use the main mill ...

Embodiment 3

[0064] 1. The ratio of parts by weight of powder coating with antibacterial function:

[0065] 20 parts epoxy resin

[0066] 50 parts polyester resin

[0067] 20 parts polyurethane curing agent

[0068] Antibacterial color masterbatch 8 parts

[0069] Leveling agent 1 part

[0070] 0.5 parts of defoamer

[0071] 15 parts of pigments and fillers

[0072] 2. Preparation of powder coating with antibacterial function:

[0073] ①Put the resin, curing agent, antibacterial agent color masterbatch, leveling agent, defoamer and pigments and fillers into the mixing tank (1) according to the parts by weight described in the above 1, and then pass through the extruder (2) After co-extrusion, it is cooled by the blower fan (3), and the heat exchanger (4) can also be used to transport cold air for further cooling to obtain a tablet material;

[0074] ②Take the tablet material obtained in step ①, pass it through the auxiliary mill (5) for preliminary grinding, and then use the main mi...

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Abstract

The invention discloses a powder coating with an antibacterial function and a preparation method and an application thereof. The powder coating comprises the following raw materials in the parts by weight: 60-90 parts of resin, 2-40 parts of curing agent, 1.5-10 parts of antibacterial agent color concentrate, 0.5-2 parts of flatting agent, 0-4.5 parts of defoaming agent, 4-30 parts of pigments andfillers and 0-15 parts of other auxiliary agents. The powder coating provided by the invention has the functions of bacterium resistance and broad spectrum and has strong functions of sterilizing andinhibiting various bacteria and mould fungi; the heat resistant temperature of the inorganic antibacterial agent can reach 500 DEG C, and the inorganic antibacterial agent has good heat stability; and the inorganic antibacterial agent is a silver ion antibacterial agent using glass as a carrier, has good transparency and can be made into a transparent antibacterial powder coating which has the advantages of safety and wide application range. The preparation method provided by the invention has reasonable processes, strong operability and high qualified rate of the prepared finished products and can realize industrial production in a large batch.

Description

technical field [0001] The invention relates to a powder coating, in particular to a powder coating with an antibacterial function, a preparation method thereof and its application in preparing an antibacterial protective decorative coating. Background technique [0002] 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 antibacterial agents are composed of metals such as copper and zinc and their ions immobilized on various carriers Inorganic antibacterial agents are divided into two categories: metal ion type and metal oxide type. [0003] Antimi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/00C09D133/00C09D127/12C09D175/04C09D163/00C09D7/12C09D5/14C09D5/03
Inventor 刘际平齐红俊邵波姜兴盛
Owner TIGER DRYLAC TAICANG
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