Flatting agent for polyester-hydroxyalkylamide type powder coating and preparation method thereof

A hydroxyalkyl amide powder coating technology, applied in powder coatings, polyester coatings, coatings, etc., can solve the problems of reducing coating leveling, impact resistance, mechanical properties and storage stability, and achieve good The effect of matting effect, large market space and implementation value

Active Publication Date: 2014-04-02
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

These methods can make polyester-hydroxyalkylamide powder coatings have matting properties under certain conditions, but will reduce the leveling, impact resistance, mechanical properties and storage stability of the coating.

Method used

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  • Flatting agent for polyester-hydroxyalkylamide type powder coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] 100g of glycidyl methacrylate, 30g of tert-butyl methacrylate, 20g of styrene, 8g of methyl methacrylate, 42g of isobutyl methacrylate, 2g of azobisisovaleronitrile Add the mixed solution dropwise. 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 mixed solution 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 synthetic resin A with a glass transition temperature of 55°C and a number average molecular weight of 4500.

[0019] Mix and pulverize 50g of synthetic acrylic resin A, 110g of tetradecanoic acid, 30g of wax substance Deuteron wax MPO?, and 10g of zinc stearate in a weight ratio of 6:10:3:1 to make a matte Agent 1.

[0020]

Embodiment 2

[0021] Example 2 70g of synthetic acrylic resin A, 50g of dodecanedioic acid, 40g of sebacic acid, 30g of wax substance Deuteron wax MPO?, 10g of aluminum stearate, according to the ratio of 7:5::4: Mix and pulverize at a weight ratio of 3:1 to make matting agent 2.

[0022]

Embodiment 3

[0024] 120g of glycidyl methacrylate, 30g of n-butyl methacrylate, 10g of styrene, 8g of methyl methacrylate, 32g of isobutyl methacrylate, 2g of azobisisovaleronitrile Add the mixed solution dropwise. 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 mixed solution 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. Discharge while hot, cool, and coarsely pulverize to obtain an acrylic synthetic resin B with a glass transition temperature of 50°C and a number average molecular weight of 6,500.

[0025] 60g of synthetic acrylic resin B, 80g of undecyl diaci...

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Abstract

A flatting agent for a polyester hydroxyalkylamide type powder coating and a preparation method thereof. The flatting agent comprises the components of acrylic resin synthesized from (methyl) glycidyl acrylate and other monomers, C10-C18 long-chain diacid, wax or wax analog, and a metal salt or organic metal complex. The flatting agent provided by the invention is obtained by grinding and mixing acrylic resin, C10-C18 long-chain diacid, wax or wax analog, and metal salt or organic metal complex according to the proportion at room temperature. The flatting agent provided by the invention can be used in a polyester-hydroxyalkylamide type powder coating to form a good flatting film after curing, and does not generate unfavorable influences on other performances of the film.

Description

technical field [0001] The invention relates to the technical field of hydroxyalkylamide cured polyester powder coatings, in particular to a matting agent for polyester-hydroxyalkylamide type powder coatings. Background technique [0002] Polyester-hydroxyalkylamide powder coatings are safe and environmentally friendly, and are an important outdoor weather-resistant powder coating. They have been widely used in outdoor facilities with weather-resistant requirements, such as architectural aluminum profiles, automobiles, motorcycles and bicycle parts. , garden metal furniture, highway guardrails, outdoor advertising and lighting, ceilings and other fields. With the improvement of people's living standards and quality, higher requirements are put forward for the decoration and functionality of coatings. For example, coatings applied in the fields of automobiles, construction machinery, home appliances, building materials, and outdoor leisure furniture. Can provide a good m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D7/12C09D167/00C09D5/03C08F220/32C08F220/18C08F212/08C08F220/14C08F220/28
Inventor 鲍远志
Owner 六安科瑞达新型材料有限公司
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