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Delustering agent for epoxy polyester powder coating

A powder coating, epoxy polyester technology, used in polyester coatings, epoxy resin coatings, coatings, etc., can solve the problems of poor storage, difficult to obtain matting performance, matt powder gloss and storage can not achieve a win-win situation, etc. achieve good leveling effect

Inactive Publication Date: 2018-04-06
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

With the improvement of living standards and quality, people have put forward higher requirements for the decoration of coatings. Coating films with different gloss are the most basic needs, but the matting powders that often appear on the market cannot meet the gloss and storage requirements. Win-win situation, the storage of powders with superior matting properties is often poor, and it is difficult to obtain excellent matting properties for powders with better storage; therefore, the development of epoxy polyester powder coatings with excellent storage properties and excellent matting properties is used Matting agent with huge market demand and implementation value

Method used

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  • Delustering agent for epoxy polyester powder coating
  • Delustering agent for epoxy polyester powder coating
  • Delustering agent for epoxy polyester powder coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A kind of matting agent for epoxy polyester type matting agent powder coating is prepared from each component of following mass fraction:

[0018]

[0019] Among them, the carboxylated acrylic resin adopts the carboxylated acrylic resin of BASF, Germany 843, the acid value is 204mgKOH / g, and the Tg is 86°C; the epoxy-based acrylic resin is SA300 produced by Lu'an Jietongda New Material Co., Ltd., the epoxy equivalent is 300, and the Tg is 63°C;

[0020] The preparation method of the matting agent is as follows: firstly crush and sieve carboxyl acrylic resin and epoxy acrylic resin respectively, and the particle size is required to be controlled below 120 mesh, and then put them in a mixing tank according to the following formula and mix them thoroughly, and configure Matting agent A for epoxy polyester powder coating:

[0021] Preparation of epoxy polyester type matting powder coating:

[0022] (1) Pre-mixing: put the following raw materials into the mixing tank a...

Embodiment 2

[0030] The preparation process of this example is the same as that of Example 1, except that the carboxylated acrylic resin is SA151 from Lu’an Jietongda New Material Co., Ltd., its acid value is 155 mgKOH / g, and its Tg is 62°C to obtain a matting agent. b.

Embodiment 3

[0032] The preparation process of this example is the same as that of Example 1, except that the epoxy-based acrylic resin is SA700 produced by Lu'an Jietongda New Material Co., Ltd., with an epoxy equivalent of 750 and a Tg of 67°C.

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Abstract

The invention discloses a delustering agent for an epoxy polyester powder coating. The delustering agent is prepared from the following components in parts by mass: 5-50wt% of carboxyl acrylic resin,10-45wt% of epoxy acrylic resin, 30-55wt% of metal salts or organic metal composites, 0-20wt% of wax or wax analogues and 0-20wt% of filler. The delustering agent prepared by the invention can obtaina full coating appearance with extremely low glossiness and extremely good leveling property and also has relatively long gel time and relatively high storage stability.

Description

technical field [0001] The invention belongs to the field of paint preparation and relates to a matting agent for epoxy polyester type matting agent powder coating. Background technique [0002] Powder coating is a new type of coating industry. Because of its characteristics of solvent-free, recyclable, pollution-free, energy-saving and high mechanical strength of the coating film, its position in the coating industry is rising day by day. With the development of powder coatings and the requirements of different environments, there are more and more branches of powder coatings, the main ones are: thermosetting powder coatings and thermoplastic powder coatings; the common thermosetting powder coatings are epoxy polyester type , Pure epoxy type, pure polyester type, polyurethane type powder coating. [0003] Epoxy-polyester powder coatings can form uniform and smooth coatings, and have the advantages of excellent mechanical properties and high adhesion, so they are widely use...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D7/65C09D7/63C09D7/61C09D163/00C09D167/00
CPCC08K2003/267C08L2205/02C08L2205/035C09D163/00C09D167/00C08L63/00C08L33/02C08L63/10C08L23/06C08K13/02C08K5/47C08K5/098C08K3/34C08L67/00C08K5/39C08L23/12C08K3/26
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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