Low-gloss bending-resistant heat transfer printing powder coating used for section aluminum and a preparing method thereof

A powder coating, low-gloss technology, applied in powder coatings, polyester coatings, coatings, etc., can solve problems such as unsatisfactory, low gloss, mechanical properties of coating films, and decreased storage stability of weather-resistant powder coatings, so as to avoid Effects of residual paper printing, reducing gloss, and improving transfer effect

Active Publication Date: 2017-06-20
广东华江粉末科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional thermal transfer powder coatings, especially those with low gloss, due to the addition of too much physical or chemical matting agent, lead to a sharp decline in the mechanical properties, weath

Method used

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  • Low-gloss bending-resistant heat transfer printing powder coating used for section aluminum and a preparing method thereof
  • Low-gloss bending-resistant heat transfer printing powder coating used for section aluminum and a preparing method thereof
  • Low-gloss bending-resistant heat transfer printing powder coating used for section aluminum and a preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0034] Example 1

[0035] Prepare low-gloss and anti-bending thermal transfer powder coatings for aluminum profiles according to the following steps:

[0036] (1) According to the following A component formula, put the raw materials into the mixing tank according to their corresponding mass percentages for pre-mixing, and the time is 3-4 minutes;

[0037] A component:

[0038]

[0039] Wherein, the saturated carboxyl-terminated polyester resin A is a high-toughness carboxyl polyester resin with an acid value of 46 mgKOH / g, a viscosity of 7500 mPa·s at 200°C, and a glass transition temperature of 67°C; The median particle size of extinct barium is 5.8μm;

[0040] (2) Use a twin-screw extruder to melt, knead, disperse and extrude the pre-mixed raw materials uniformly. The temperature in zone I of the extruder is set to 115°C, and the temperature in zone II of the extruder is set to 115°C. The output screw frequency is 30Hz; then it is compressed and crushed;

[0041] (3) The crushed mate...

Example Embodiment

[0055] Example 2

[0056] Prepare low-gloss and anti-bending thermal transfer powder coatings for aluminum profiles according to the following steps:

[0057] (1) According to the following A component formula, put the raw materials into the mixing tank according to their corresponding mass percentages for pre-mixing, and the time is 3-4 minutes;

[0058] A component:

[0059]

[0060] Wherein, the saturated carboxyl-terminated polyester resin A is a high-toughness carboxyl polyester resin with an acid value of 47 mgKOH / g, a viscosity of 7700 mPa·s at 200°C, and a glass transition temperature of 67°C; The median particle size of extinct barium is 5.7μm;

[0061] (2) Use a twin-screw extruder to melt, knead, uniformly disperse and extrude the pre-mixed raw materials. The temperature in zone I of the extruder is set to 118°C, and the temperature in zone II of the extruder is set to 115°C. The output screw frequency is 33Hz; then press and crush;

[0062] (3) The crushed materials are gra...

Example Embodiment

[0075] Example 3

[0076] Prepare low-gloss and anti-bending thermal transfer powder coatings for aluminum profiles according to the following steps:

[0077] (1) According to the following A component formula, put the raw materials into the mixing tank according to their corresponding mass percentages for pre-mixing, and the time is 3-4 minutes;

[0078] A component:

[0079]

[0080]

[0081] Wherein, the saturated carboxyl-terminated polyester resin A is a high-toughness carboxyl polyester resin with an acid value of 50 mgKOH / g, a viscosity of 7800 mPa·s at 200°C, and a glass transition temperature of 67°C; The median diameter of extinction barium is 5.5μm;

[0082] (2) Use a twin-screw extruder to melt, mix, disperse and extrude the pre-mixed raw materials uniformly. The temperature in zone I of the extruder is set to 120°C, and the temperature in zone II of the extruder is set to 120°C. The output screw frequency is 40Hz; then it is compressed and crushed;

[0083] (3) The crushed...

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Abstract

The invention relates to low-gloss bending-resistant heat transfer printing powder coating used for section aluminum and a preparing method thereof. The powder coating is prepared by mixing an A component and a B component. Raw materials of the A component include saturated carboxyl-ended polyester resin A, a TGIC curing agent, enclosed type isocyanate, extinction barium sulfate, a leveling agent, a brightening agent, benzoin, wax powder, a wax-based flatting agent, rutile type titanium dioxide, carbon black and iron oxide yellow. Raw materials of the B component include saturated carboxyl-ended polyester resin B, a TGIC curing agent, enclosed type isocyanate, extinction barium sulfate, a leveling agent, a brightening agent, benzoin, wax powder, rutile type titanium dioxide, carbon black and iron oxide yellow. Coating films of the powder coating have significant characteristics of extremely good storage stability, bending resistance and impact resistance, excellent whether resistance, high decoration performance, and the like.

Description

technical field [0001] The invention belongs to the field of thermal transfer printing powder, and in particular relates to a low-gloss anti-bending thermal transfer powder coating for aluminum profiles and a preparation method thereof. Background technique [0002] Thermal transfer powder coating, as an environmentally friendly and highly decorative coating, has been widely used in the field of aluminum profiles. However, traditional thermal transfer powder coatings, especially those with low gloss, due to the addition of too much physical or chemical matting agent, lead to a sharp decline in the mechanical properties, weather resistance and storage stability of the powder coating, which cannot meet many requirements. The requirements of aluminum profiles for outdoor use, or the requirements of some aluminum alloy doors that need to be stamped. Contents of the invention [0003] In order to solve the shortcomings and insufficiencies of the prior art, the primary purpose ...

Claims

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Application Information

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IPC IPC(8): C09D167/00C09D5/03C09D7/12
CPCC08L2205/025C08L2205/035C09D5/033C09D167/00C08L67/00C08L23/06C08L27/18C08K13/02C08K5/29
Inventor 魏育福蔡劲树刘飞方胥庚洪贤波
Owner 广东华江粉末科技有限公司
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