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A special weather-resistant pearlescent powder coating for aluminum materials and its preparation method

A powder coating and weather resistance technology, applied in powder coatings, anti-corrosion coatings, polyester coatings, etc., can solve the problems of improper powder coating formulation and process handling, powder boiled pearl powder falling off, and mortar resistance instability, etc. The effect of chemical resistance and excellent physical properties, strong adhesion and short curing time

Active Publication Date: 2018-05-11
GUANGZHOU KINTE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Special weather-resistant pearlescent powder for aluminum materials The current domestic weather-resistant pearlescent powder coatings for aluminum materials are limited by market development. Improper powder coating formula and process treatment will cause powder boiled pearl powder to fall off, unstable mortar resistance and poor aging resistance. and other defects, the present invention focuses on solving the problems in this respect

Method used

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  • A special weather-resistant pearlescent powder coating for aluminum materials and its preparation method
  • A special weather-resistant pearlescent powder coating for aluminum materials and its preparation method
  • A special weather-resistant pearlescent powder coating for aluminum materials and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A special weather-resistant pearlescent powder coating for aluminum materials, which is formed by bonding together a base powder and a weather-resistant pearlescent pigment at a weight ratio of 100:1, and the base powder includes the following components by weight:

[0040]

[0041] Preparation:

[0042] 1. Prepare base powder:

[0043] (a) Weigh saturated polyester resin, curing agent TGIC, titanium dioxide, barium sulfate, leveling agent, benzoin, other additives and pigments in the mixing tank according to the above weight ratio, fully mix and crush for 1 to 10 minutes ;

[0044] (b) The crushed material enters the twin-screw extruder for extrusion; the heating temperature of the extruder is controlled at 80-120°C;

[0045] (c) The extruded material is compressed into tablets, cooled, and pulverized into a powder with a particle size (equivalent particle size D50) of 30-45um, and then sieved to obtain a weather-resistant pearlescent powder coating for aluminum m...

Embodiment 2

[0053] A special weather-resistant pearlescent powder coating for aluminum, which is formed by bonding together a base powder and a weather-resistant pearlescent pigment at a weight ratio of 100:3, and the base powder includes the following components by weight:

[0054]

[0055]

[0056] Preparation:

[0057] 1. Prepare base powder:

[0058] (a) Weigh saturated polyester resin, curing agent TGIC, titanium dioxide, barium sulfate, leveling agent, benzoin, other additives and pigments in the mixing tank according to the above weight ratio, fully mix and crush for 1 to 10 minutes ;

[0059] (b) The crushed material enters the twin-screw extruder for extrusion; the heating temperature of the extruder is controlled at 80-120°C;

[0060] (c) The extruded material is compressed into tablets, cooled, and pulverized into a powder with a particle size (equivalent particle size D50) of 30-45um, and then sieved to obtain a weather-resistant pearlescent powder coating for aluminum...

Embodiment 3

[0069] A special weather-resistant pearlescent powder coating for aluminum materials, which is formed by bonding together a primer and a weather-resistant pearlescent pigment at a weight ratio of 100:1. The primer is composed of composition A and composition B.

[0070] The composition B contains the following components by weight:

[0071]

[0072] The composition B contains the following components by weight:

[0073]

[0074] Preparation:

[0075] 1. Prepare base powder:

[0076] (a) Weighing composition A and composition B according to the weight ratio, respectively placing them in a mixing tank, fully mixing and crushing for 1 to 10 minutes;

[0077] (b) The crushed materials of composition A and composition B are respectively extruded into a twin-screw extruder; the heating temperature of the extruder is controlled at 80-120°C;

[0078] (c) The extruded composition A material and composition B material are respectively tabletted, cooled, and crushed, and then re...

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Abstract

The invention discloses a special weather-resistant pearlescent powder coating for aluminum materials, which is formed by bonding together a base powder and a pearlescent pigment at a weight ratio of 100:0.003-10. The pearlescent pigment is a weather-resistant pearlescent pigment. The aluminum material of the invention The special weather-resistant pearlescent powder coating has excellent characteristics such as non-toxic and environmental protection, strong adhesion to aluminum, boiling water resistance, mortar resistance and xenon lamp aging resistance. Various performance requirements and appearance requirements such as high adhesion, good chemical resistance and excellent physical properties of special pearlescent powder.

Description

technical field [0001] The invention relates to the technical field of powder coatings, in particular to a special weather-resistant pearlescent powder coating for aluminum materials and a preparation method thereof. Background technique [0002] Powder coating has the characteristics of energy saving, no VOC emission, good decoration, and safe use. In recent years, domestic powder coating technology has developed rapidly. Powder coating is used as a decorative material. With the affluence of life, people are no longer limited to a single color requirement for powder coating coating. Bonding powder coatings with a metallic appearance are recognized as high-end products in the field of powder coatings. They are well received by the construction market and have been gradually promoted in various fields. Among them, the special weather-resistant pearlescent powder coating for aluminum has excellent weather resistance and shiny pearlescent appearance, and is highly sought after...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D167/00C09D7/61C09D5/08C09D5/03
Inventor 史中平肖龙和高庆福杨小华
Owner GUANGZHOU KINTE IND
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