Multi-paint composition system of low temperature rapidly cured powdery paints, coating method thereof, and coating

A powder coating and rapid curing technology, which is applied in powder coatings, coatings, polyester coatings, etc., can solve the problems of difficulty in ensuring the stability and reliability of ultra-low temperature curing, poor surface resistance of coating films, and differences in low-temperature curing effects.

Pending Publication Date: 2020-02-18
TIGER DRYLAC TAICANG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, as the applicant found through the application of comparative tests, the surface resistance of the coating film of this technical solution is relatively poor, and because the implementation of this technical solution is greatly restricted by the applied ...

Method used

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  • Multi-paint composition system of low temperature rapidly cured powdery paints, coating method thereof, and coating
  • Multi-paint composition system of low temperature rapidly cured powdery paints, coating method thereof, and coating
  • Multi-paint composition system of low temperature rapidly cured powdery paints, coating method thereof, and coating

Examples

Experimental program
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Effect test

Embodiment 1

[0039] Embodiment 1: a kind of multi-coat combination system of low-temperature fast-curing powder coatings, including the primer powder coating for base material primer and the top coating powder coating for base material top coating, wherein,

[0040] The formulation of the primer powder coating adopts the raw materials shown in the following table 3:

[0041] The formula of priming powder coating in table 3 embodiment 1

[0042] Raw material type parts by weight Specific raw material model epoxy resin 600 Adopt KD-211D of Guodu Chemical Epoxy curing agent 45 Using amine curing agent catalyst 5 Using Phosphorus Curing Agent leveling agent 10 Using ESTRON's RESIFLOW P-67A Benzoin 12 Using AXX-BENZOIN from Nanhai Chemical Degasser 20 CERAFLOUR 961 from BYK Pigments 308 Aluminum hydroxide Total 1000 /

[0043] The formulation of surface coating powder coating adopts the raw materials shown in the f...

Embodiment 2

[0060] Embodiment 2: The remaining technical solutions of this embodiment 2 are the same as those of embodiment 1, the only difference being that in step S10) in this embodiment 2, the temperature of the infrared curing chamber is maintained at 130° C., and the curing time is selected as 1 minute.

Embodiment 3

[0061] Embodiment 3: The remaining technical solutions of this embodiment 3 are the same as those of embodiment 1, the only difference being that in step S10) of this embodiment 3, the temperature of the infrared curing chamber is maintained at 110° C., and the curing time is selected as 3 minutes.

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Abstract

The invention discloses a multi-paint composition system of low temperature rapidly cured powdery paints, a coating method thereof, and a coating. The system comprises a prime coating powdery paint for the prime coating of a basic material and a top coating powdery paint for the top coating of the basic material. The prime coating powdery paint comprises prime coating epoxy resin with an epoxy equivalent of 400 to 700. The top coating powdery paint comprises high acid value polyester resin with an acid value not lower than 50 and one or more top coating epoxy resins with an epoxy equivalent of400 to 800. The raw materials are picked, the design of the coating structure is innovative, the stable storage performance of the powdery paint and the excellent protective performance of the coating can be maintained, low temperature rapid curing with a lower curing temperature and shorter curing time can be realized, the system is especially for coating a thermal sensitive basic material suchas MDF, and the coating has an excellent surface resistance performance.

Description

technical field [0001] The invention belongs to the field of thermosetting powder coatings, and specifically relates to a multi-coat combination system of low-temperature fast-curing powder coatings, and also relates to a coating method of the multi-coat combination system and a coating applied thereto. Background technique [0002] Although thermosetting powder coatings have the advantages of four "E" (Economical-economy, Environmental-environmental protection, Efficient-high efficiency, Excellent performance-excellent performance), some of its weaknesses are also obvious, such as relatively harsh curing conditions, and the curing temperature is generally at Between 180 and 200°C. If the curing temperature and energy consumption can be lowered, it is the need for environmental protection, energy saving and emission reduction; at the same time, high curing temperature not only leads to high energy consumption, but also leads to the coating of some substrates that cannot with...

Claims

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Application Information

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IPC IPC(8): C09D167/00C09D163/00C09D5/03B05D1/38B05D3/02
CPCB05D1/38B05D3/0254B05D2401/32B05D2451/00B05D2504/00B05D2508/00C08L2205/025C08L2205/035C09D5/03C09D163/00C09D167/00C08L63/00
Inventor 戴天贺骆飚
Owner TIGER DRYLAC TAICANG
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