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Boiling-endurable sand-ripple powder paint for coating corners of aluminum section and preparation method thereof

A powder coating and boiling-resistant technology, applied in powder coatings, polyester coatings, coatings, etc., can solve the problems of no improvement in corner powder, affect the appearance, general weather resistance, etc., and achieve good corner powder performance, The effect of improving the powdering rate of corners and excellent boiling resistance

Active Publication Date: 2014-01-01
GUANGZHOU KINTE IND +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] CN201110417011.6 discloses an energy-saving aluminum profile powder coating, but the powder coating is leveling, and the aluminum profile coated with leveling powder is easily scratched and discolored during the handling process and its use environment , so leveling powder for aluminum profiles is becoming more and more non-mainstream products, and sand grain powder for aluminum profiles just solves this problem and is being used in large quantities
CN201210303069.2 discloses an aluminum profile powder and its preparation method, but the product is a conventional aluminum profile powder, the powder on the corners is not improved, and it is resistant to boiling and discoloration, which affects the appearance
CN201310042733.7 discloses a water-boiling-resistant polyester powder coating, but this product uses a mixed curing agent system of HAA system and isocyanate, and relies on hydrophobic fillers to improve water-boiling resistance. Sand grain powder coatings for aluminum profiles have average weather resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] The boil-resistant sand grain powder coating suitable for powder coating on the corners of aluminum profiles, its components and weight ratio are as follows:

[0043] High acid value saturated carboxyl polyester resin 180 parts

[0044] Triglycidyl isocyanurate 13 parts

[0045] Filling 60 parts

[0046] Auxiliary 5 parts

[0047] Sand texture agent 0.5 parts

[0048] Booster 1 part

[0049] Pigment 3 parts

[0050] Vapor phase oxide 1 part

[0051] The acid value of the high acid value saturated carboxyl polyester resin is 30-50mgKOH / g, the glass transition temperature Tg: 55-65°C, and the softening point: 100-120°C. The fumed oxide is alumina.

[0052] Preparation:

[0053] (1) Weigh high acid value saturated carboxyl polyester resin, triglycidyl isocyanurate, fillers, additives, graining agents, charge enhancers, pigments in proportion, put them in the mixing tank, fully mix and break , to obtain the mixed premixed material; place it in the mixing tank, mix ...

Embodiment 2

[0059] The boil-resistant sand grain powder coating suitable for powder coating on the corners of aluminum profiles, its components and weight ratio are as follows:

[0060] Low acid value saturated carboxyl polyester resin 250 parts

[0061] β-hydroxyalkylamide 13 parts

[0062] Filling 10 parts

[0063] Auxiliary 5 parts

[0064] Sanding agent 1 part

[0065] Bentonite 0.8 parts

[0066] Booster 1 part

[0067] Pigment 3 parts

[0068] Vapor phase oxide 1.5 parts

[0069] Acid value of low acid value saturated carboxyl polyester resin: 20-35mgKOH / g, glass transition temperature Tg: 55-75°C, softening point: 95-115°C. The fumed oxide is fumed silica.

[0070] Preparation:

[0071] (1) Weigh low acid value saturated carboxyl polyester resin, β-hydroxyalkylamide, filler, auxiliary agent, sand grain agent, bentonite, charge enhancer, pigment in proportion, put in the mixing tank, fully mix and crush , to obtain the mixed premixed material; place it in the mixing tank, ...

Embodiment 3

[0077] The boil-resistant sand grain powder coating suitable for powder coating on the corners of aluminum profiles, its components and weight ratio are as follows:

[0078] High acid value saturated carboxyl polyester resin 200 parts

[0079] Triglycidyl isocyanurate 16 parts

[0080] Filling 160 parts

[0081] Auxiliary 6 parts

[0082] Sanding agent 3 parts

[0083] Bentonite 2.5 parts

[0084] Booster 2 parts

[0085] Pigment 4.5 parts

[0086] Vapor phase oxide 2 parts

[0087] The acid value of the high acid value saturated carboxyl polyester resin is 36-40mgKOH / g, the glass transition temperature Tg: 55-65°C, and the softening point: 100-120°C. The fumed oxide is a mixture of alumina and fumed silica

[0088] Preparation:

[0089] (1) Weigh high acid value saturated carboxyl polyester resin, triglycidyl isocyanurate, fillers, additives, sanding agent, bentonite, power enhancer, pigments in proportion, put them in the mixing tank, and mix them thoroughly and cr...

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Abstract

The invention discloses boiling-endurable sand-ripple powder paint for coating corners of an aluminum section. The paint comprises polyester resin, a curing agent, filler, conventional auxiliary, a sand ripple agent, pigment and gas-phase oxide. The invention also discloses a preparation method of the powder paint. The powder paint has an excellent coating performance on corners of an aluminum section, and has a high coating rate on corners of the aluminum section.

Description

technical field [0001] The invention relates to a powder coating, in particular to a boiling-resistant sand texture powder coating suitable for powder coating on the corners of aluminum profiles, and also relates to a preparation method of the powder coating. Background technique [0002] Metal profiles are widely used in the construction industry due to their excellent durability, decoration and formability. Because of its good processing performance and light weight, aluminum profiles account for more than 80% of the amount of metal profiles, so the application of powder coatings in aluminum profiles has grown rapidly. [0003] Because aluminum profiles have a large number of corners, it is generally difficult to completely coat the corners of aluminum profiles with electrostatic spraying powder coatings, which affects the appearance; and due to the specific use environment of aluminum profiles, aluminum profile powder coatings must have good boiling resistance. to avoid ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/00C09D5/03
Inventor 甘灯河高庆福李光周良运程里张捷
Owner GUANGZHOU KINTE IND
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