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Pollution-resistant epoxy-polyester powder paint flatting agent and preparation method thereof

A technology of powder coating and matting agent, which is applied in the direction of coating, etc., can solve the problems such as the decline of the coating film's pollution resistance, and achieve the effects of product performance improvement, improvement of pollution resistance, large market demand and implementation value

Active Publication Date: 2014-03-19
六安科瑞达新型材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of matting method will have adverse effects on other properties of the coating composition, especially at lower gloss, the stain resistance of the coating film will decrease

Method used

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  • Pollution-resistant epoxy-polyester powder paint flatting agent and preparation method thereof
  • Pollution-resistant epoxy-polyester powder paint flatting agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] 30g of glycidyl methacrylate, 100g of tert-butyl methacrylate, 20g of styrene, 8g of methyl methacrylate, 42g of isobutyl methacrylate, 2g of azobisisovaleronitrile into a monomer mixture. 200g of tert-butanol was added into a 1000ml three-neck flask and heated and stirred. When the temperature reaches 80°C-85°C, start to add the monomer mixture dropwise, finish the dropwise addition after 90 minutes, and keep the temperature at 80°C-85°C for 2 hours. Evaporate the solvent under reduced pressure, the temperature does not exceed 160°C, discharge while hot, cool, and coarsely pulverize to obtain acrylic resin A with a glass transition temperature of 80°C and a number average molecular weight of 6,500. Then, acrylic resin A, wax substance Deuteron wax MPO™, and zinc stearate were mixed and pulverized according to the weight ratio of 70:25:5 to make matting agent 1.

Embodiment 2

[0017] Embodiment 2 The acrylic synthetic resin A in embodiment 1 and the wax substance Polymist F-5A ? 1. Zinc stearate was mixed and pulverized according to the weight ratio of 80:15:5 to make matting agent 2.

Embodiment 3

[0019] 40g of glycidyl methacrylate, 120g of tert-butyl methacrylate, 10g of styrene, 8g of methyl methacrylate, 32g of isobutyl methacrylate, 2g of azobisisovaleronitrile into a monomer mixture. Dissolve 1 g of benzoyl peroxide in 40 g of tert-butanol to prepare an additional initiator solution. 200g of tert-butanol was added into a 1000ml three-neck flask and heated and stirred. When the temperature reaches 80°C-85°C, start to add the monomer mixture dropwise, finish the dropwise addition after 90 minutes, and keep the temperature at 80°C-85°C for 1 hour. Start to add the initiator solution, and keep warm for 1h after the addition. The solvent was distilled off under reduced pressure, and the temperature did not exceed 160°C. Discharging while hot, cooling, and coarsely pulverizing to obtain acrylic resin B with a glass transition temperature of 81°C and a number average molecular weight of 6,200. Then, acrylic resin B was mixed and pulverized with wax substance Lancowac...

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Abstract

The invention provides a pollution-resistant epoxy-polyester powder paint flatting agent and a preparation method thereof. The pollution-resistant epoxy-polyester powder paint flatting agent is composed of 15-50 wt% of wax or wax analog, 3-10 wt% of metallic salt or organometallic complex and 40-80 wt% of acrylic resin, wherein the acrylic resin contains 40-70 wt% of tert-butyl acrylate and (or) tert-butyl methacrylate. The flatting agent is prepared by proportionally pulverizing and mixing the synthetic acrylic resin, wax or wax analog and metallic salt or organometallic complex at normal temperature. The flatting agent can enable the epoxy-polyester powder paint to simultaneously have the application effects of pollution resistance and flatting.

Description

technical field [0001] The invention relates to the technical field of epoxy-polyester powder coatings, in particular to a stain-resistant epoxy-polyester powder coating matting agent and a preparation method thereof. Background technique [0002] Epoxy-polyester powder coatings can form uniform and smooth coatings, and have the advantages of low pollution, high utilization rate, excellent mechanical properties, and high adhesion. Therefore, they are widely used in many fields such as indoor building materials, home appliances, and furniture. With the improvement of living standards and quality, people have put forward higher requirements for the decoration and functionality of coatings. For example, coatings applied in the fields of indoor metal building materials, kitchen furniture or electrical appliances, people hope to provide Good matt effect and excellent stain resistance. Therefore, there is a huge market demand and implementation value to develop a powder coating ...

Claims

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Application Information

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IPC IPC(8): C09D7/12C08F220/18C08F220/32C08F212/08C08F220/14C08F220/28
Inventor 鲍远志翁世兵
Owner 六安科瑞达新型材料有限公司
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