High-toughness powder coating specially used for security door

A powder coating, high toughness technology, applied in powder coating, polyester coating, coating, etc., can solve the problems that cannot meet the requirements of anti-theft doors, such as coating first and then molding, to achieve the effect of improving toughness and optimizing the production process

Active Publication Date: 2013-08-28
ZHEJIANG CHAOLANG ADVANCED MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] High-toughness powder coatings are currently used in the field of spraying workpieces such as automotive filters and springs. A

Method used

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  • High-toughness powder coating specially used for security door
  • High-toughness powder coating specially used for security door
  • High-toughness powder coating specially used for security door

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～6

[0030] Table 2 Example formula of indoor powder coating

[0031]

[0032] In Table 2, 50:50, 60:40 and 70:30 represent the effective reaction ratios of modified polyester resin A and epoxy resin.

[0033] Accurately weigh the materials according to the formula in Table 2, and place them in a high-speed mixer to mix for 5 minutes; the mixed materials are extruded with an extruder at a temperature of 90 °C in zone 1 and 115 °C in zone 2; the extruded materials are pulverized with an ACM pulverizer A 180-mesh sieve is used to prepare a powder product with a D50 particle size of 28-37 microns for later use.

[0034] The tough coating produced by the above production process is sprayed on a steel plate with a thickness of 0.4 to 2.0 mm using 60-90KV high-voltage static electricity, with an average coating thickness of 50-90 microns; curing conditions are: workpiece temperature 170-190 ℃, baking 10 to 20 minutes.

[0035] Table 2 Examples 1, 2, 3, and 4 are high-gloss powder co...

Embodiment 7～12

[0039] Table 4 Formulations of 7-12 Examples of Outdoor Powder Coatings

[0040]

[0041]

[0042] Accurately weigh the materials according to the formula in Table 4, and place them in a high-speed mixer to mix for 5 minutes; the mixed materials are extruded with an extruder at a temperature of 90 °C in zone 1 and 115 °C in zone 2; the extruded materials are pulverized with an ACM pulverizer A 180-mesh sieve is used to prepare a powder product with a D50 particle size of 28-37 microns for later use.

[0043] The tough coating produced by the above production process is sprayed on a steel plate with a thickness of 0.4 to 2.0 mm using 60-90KV high-voltage electrostatic, with an average coating thickness of 50-90 microns; curing conditions are: workpiece temperature 180-200 ° C, baking 10 to 20 minutes.

[0044] Table 4 Examples 7, 8, 9, and 10 are high-gloss powder coatings, wherein the modified barium sulfate is modified precipitated barium sulfate, and Examples 11 and 1...

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Abstract

The invention relates to a high-toughness powder coating specially used for a security door. The high-toughness powder coating comprises a curing reaction ingredient, a filler and an auxiliary material, wherein the curing reaction ingredient consists of a modified polyester resin A and a curing agent A or a modified polyester resin B and a curing agent B; the filler is modified barium sulfate; and the auxiliary material comprises a plasticizer, a catalytic promoter, an accessory ingredient and a pigment. The high-toughness powder coating specially used for the security door disclosed by the invention not only can overcome the disadvantages of the normal powder technology in the prior art, but also has the characteristic that the coating can not crack or fall off when the machine shaping such as the profiling, the edge-folding, the rolling, the binding sealing and the like is carried out when the thickness of the coating on a workpiece is 50-90mu m, a method with a novel workmanship technological process is provided for the security door industry, and the improvement of the production efficiency and the economic benefit of the security door enterprises is preferably promoted.

Description

technical field [0001] The invention relates to the field of chemical powder coatings, in particular to a special high-toughness powder coating for anti-theft doors. Background technique [0002] With the continuous expansion of the application field of powder coatings, powder coatings are widely used in the coating of various security doors, aluminum profiles, filing cabinets and other fields. Because powder coatings are environmentally friendly and pollution-free, with high coating efficiency and excellent film performance, almost all metal anti-theft doors are painted by powder spraying. [0003] There are usually three forms of powder coating for anti-theft doors: 1. Powder coatings such as wrinkles, artistic patterns, sand patterns, metal patterns, etc. are directly sprayed and formed once; 2. Powder coatings are primers and then heat transfer molding; 3. Powder coatings are the bottom Apply cover paint molding. [0004] The conventional spraying process of thermal tr...

Claims

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Application Information

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IPC IPC(8): C09D167/00C09D5/03
Inventor 杨庆伟腾学芳
Owner ZHEJIANG CHAOLANG ADVANCED MATERIALS
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