Fluorine resin-modified polyester powder coating for aluminum profile and preparation method for fluorine resin-modified polyester powder coating

A technology of powder coating and modified polyester is applied in the field of preparation of fluororesin-modified polyester powder coatings for aluminum profiles and fluororesin-modified polyester powder coatings for aluminum profiles, which can solve the problems of high price and immature technology, etc. problem, to achieve the effect of low price and strong operability

Active Publication Date: 2014-06-11
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

Although fluorocarbon powder coatings have excellent weather resistance, the fluorocarbon resin technology used in powder coatings in my country is still immature, and the fluorocarbon resins imported from abroad are extremely expensive.

Method used

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  • Fluorine resin-modified polyester powder coating for aluminum profile and preparation method for fluorine resin-modified polyester powder coating
  • Fluorine resin-modified polyester powder coating for aluminum profile and preparation method for fluorine resin-modified polyester powder coating
  • Fluorine resin-modified polyester powder coating for aluminum profile and preparation method for fluorine resin-modified polyester powder coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Prepare the fluororesin modified polyester powder coating for aluminum profiles according to the following steps:

[0028] In the first step, the following raw materials are premixed according to the weight percentage,

[0029]

[0030] In the second step, the pre-mixed raw materials are melt-mixed and extruded with a twin-screw extruder, wherein the temperature of the extruder zone I is 130°C, and the temperature of the extruder zone II is 120°C;

[0031] In the third step, the extruded material is pressed into tablets, cooled and crushed, and the crushed material is finely pulverized with an ACM mill until the particle size of the powder is 10-100 microns;

[0032] In the fourth step, the finely pulverized powder coating is sieved to a particle size of 20-80 microns with a rotary sieve of 180 mesh to produce a powder coating product.

[0033] Among them, the FEVE fluorine resin is Kynar500PCFEVE resin produced by Arkema, France, and the carboxyl polyester is P4900...

Embodiment 2

[0037] Prepare the fluororesin modified polyester powder coating for aluminum profiles according to the following steps:

[0038] In the first step, the following raw materials are premixed according to the weight percentage,

[0039]

[0040] In the second step, the pre-mixed raw materials are melt-mixed and extruded with a twin-screw extruder, wherein the temperature of the extruder zone I is 125°C, and the temperature of the extruder II zone is 115°C;

[0041] In the third step, the extruded material is pressed into tablets, cooled and crushed, and the crushed material is finely pulverized with an ACM mill until the particle size of the powder is 10-100 microns;

[0042] In the fourth step, the finely pulverized powder coating is sieved to a particle size of 20-80 microns with a rotary sieve of 180 mesh to produce a powder coating product.

[0043] Among them, the FEVE fluorine resin is Kynar500PCFEVE resin produced by Arkema, France, and the carboxyl polyester is P4900...

Embodiment 3

[0047] Prepare the fluororesin modified polyester powder coating for aluminum profiles according to the following steps:

[0048] In the first step, the following raw materials are premixed according to the weight percentage,

[0049]

[0050] In the second step, the pre-mixed raw materials are melt-mixed and extruded with a twin-screw extruder, wherein the temperature of the extruder zone I is 120°C, and the temperature of the extruder II zone is 110°C;

[0051] In the third step, the extruded material is pressed into tablets, cooled and crushed, and the crushed material is finely pulverized with an ACM mill until the particle size of the powder is 10-100 microns;

[0052] In the fourth step, the finely pulverized powder coating is sieved to a particle size of 20-80 microns with a rotary sieve of 180 mesh to produce a powder coating product.

[0053] Among them, the FEVE fluororesin is Kynar500PCFEVE resin produced by ArkeMe, France, and the carboxylated polyester is P490...

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Abstract

The invention discloses a fluorine resin-modified polyester powder coating for an aluminum profile. The fluorine resin-modified polyester powder coating comprises multiple auxiliaries and pigments such as carboxyl-terminated saturated polyester resin, TGIC (triglycidyl isocyanurate), FEVE (fluoroethylene vinyl ether) fluorine resin, an isophorone diisocyanate tripolymer, a flatting agent, a brightening agent, benzoin and precipitated barium sulphate. A preparation method for the powder coating comprises the following steps of premixing the raw materials of the powder coating, and performing melted extrusion, tabletting, crushing and screening to obtain a finished product. The weather resistance of the powder coating can be greatly improved, the heat resistance and cold resistance of a film can also be improved, influence on decoration effects and the preparation method of the powder coating is avoided, and the price of the powder coating can be accepted by domestic users.

Description

technical field [0001] The invention relates to a powder coating, in particular to a fluororesin-modified polyester powder coating for aluminum profiles; the invention relates to a preparation method of a powder coating, in particular to a fluororesin-modified polyester powder coating for aluminum profiles method of preparation. Background technique [0002] The existing weather-resistant powder coatings in my country are still dominated by polyester / TGIC, but their weather resistance is far inferior to that of fluorocarbon powder coatings. Although fluorocarbon powder coatings have excellent weather resistance, the fluorocarbon resin technology used in powder coatings in my country is still immature, and the fluorocarbon resins imported from abroad are extremely expensive. Therefore, there is an urgent need to develop a low-cost weather-resistant powder coating to meet the needs of domestic users. Contents of the invention [0003] The purpose of the present invention i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/00C09D127/12C09D129/10C09D5/03C09D7/12
Inventor 魏育福蔡劲树蔡英进马传安
Owner 广东华江粉末科技有限公司
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