A kind of extinction ultra-low temperature curing powder coating composition and coating thereof

A powder coating, ultra-low temperature technology, used in powder coatings, coatings, polyester coatings, etc., can solve the application occasions that are difficult to meet the matte or low-gloss coating effect, and the cured coating is difficult to achieve matte or low-gloss effect. And other issues

Active Publication Date: 2022-05-06
TIGER DRYLAC TAICANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Specifically, in order to achieve ultra-low temperature curing effects, existing related technologies (such as the applicant's prior patent application CN110964409A) have proposed the use of epoxy-polyester hybrid powder coating systems, but the cured coating film is difficult to achieve matte or low gloss effect, it is difficult to meet the application occasions with matte or low-gloss coating effect

Method used

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  • A kind of extinction ultra-low temperature curing powder coating composition and coating thereof
  • A kind of extinction ultra-low temperature curing powder coating composition and coating thereof
  • A kind of extinction ultra-low temperature curing powder coating composition and coating thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0030] Embodiment 1: A kind of extinction ultra-low temperature curing powder coating composition, adopt the raw material shown in following table 1:

[0031] The formula of matting ultra-low temperature curing powder coating composition in the embodiment 1 of table 1

[0032] Raw material type parts by weight Specific raw material model High Acid Value Polyester Resin 725 Using TG0003 from Guangzhou Qingtian GMA acrylic resin 250 Using GMA1618 from Ningbo Nanhai Chemical Defoamer 10 Using POWDERMATE 542DG from Troy Degasser 5 With OXYMELT A4 from Estron leveling agent 10 Using BYK 3900P Total 1000 /

Embodiment 2

[0033] Embodiment 2: A kind of extinction ultra-low temperature curing powder coating composition, adopt the raw material shown in following table 2:

[0034] The formula of matting ultra-low temperature curing powder coating composition in the embodiment 2 of table 2

[0035]

Embodiment 3

[0036] Embodiment 3: A kind of extinction ultra-low temperature curing powder coating composition, adopt the raw material shown in following table 3:

[0037] The formula of matting ultra-low temperature curing powder coating composition in the embodiment 3 of table 3

[0038] Raw material type parts by weight Specific raw material model High Acid Value Polyester Resin 600 Using TG0003 from Guangzhou Qingtian GMA acrylic resin 400 Using GMA1618 from Ningbo Nanhai Chemical Defoamer 0 / Degasser 0 / leveling agent 0 / Total 1000 /

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Abstract

The invention discloses a matting ultra-low temperature curing powder coating composition and coating thereof, which at least include a high acid value polyester resin with an acid value not lower than 60 mgKOH / g and a GMA acrylic resin with an epoxy equivalent not higher than 600 g / eq. The high acid value polyester resin and GMA acrylic resin undergo a crosslinking and curing reaction at a temperature not higher than 125°C and not longer than 30 minutes to form a cured coating film, and the glossiness range of the cured coating film under the 60° angle test is 2 ‑20°; the present invention can complete curing at a temperature not higher than 125°C and not longer than 30 minutes, and at the same time, the gloss range of the cured coating film under the 60° angle test is 2‑20°, and has good weather resistance , can be used in indoor and outdoor fields.

Description

technical field [0001] The invention belongs to the field of powder coatings, and in particular relates to a matting ultra-low temperature curing powder coating composition, and also relates to a matting ultra-low temperature curing coating prepared by using the matting ultra-low temperature curing powder coating composition. Background technique [0002] Ultra-low temperature curing powder coatings have always been the main research and development direction in the field of powder coatings, especially suitable for substrates with low temperature curing requirements, such as wood or bamboo substrates with a certain moisture content or other heat-sensitive substrates. Its working principle is to realize the rapid low-temperature curing effect on the substrate before the thermal sensitivity of the substrate changes, so as to avoid the problems such as serious shrinkage cavity and cracking of the coating caused by the evaporation of a large amount of water vapor or deformation o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D167/00C09D133/04C09D5/03
CPCC09D167/00C09D133/04C09D5/03B05D1/06B05D7/16C08F220/00C08G63/00C08L67/06C09D133/00
Inventor 戴天贺骆飚
Owner TIGER DRYLAC TAICANG
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