Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Powder coating with effect of color changing along with angle and preparation method thereof

A powder coating and different color technology, applied in the field of powder coatings, can solve problems such as mixing in, pigment aggregation, clogging of the muzzle, etc.

Active Publication Date: 2015-04-22
NINGBO SOUTH SEA CHEM
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, it has been found in actual research that if the existing powder coatings are colored with color-dependent pigments, many problems will arise
Since the grinding method is generally used in the preparation process of powder coatings, the structure of most heterochromatic pigments is destroyed, which not only leads to a decrease in gloss effect, but also may lead to loss of the effect of heterochromatic pigments
It is therefore currently not possible to mix effect pigments into the raw materials for the preparation of powder coatings in the same way as other pigments and then grind the mixture after extrusion
In order to prevent the color-shifting pigment from being destroyed during grinding, it is possible to dry-mix the powder coating into it after grinding, but it is found in practice that this will lead to defects of pigment aggregation or lack on the surface of the decorated object. The reason is that the different electrification behaviors of the powder coating particles and the color-dependent pigment particles during the dry mixing process lead to the separation of the paint during spraying
And when the content of the angle-flop pigment is high, there will also be problems of pigment accumulation, powder spit and clogging of the muzzle, which will bring many difficulties to practical application

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Powder coating with effect of color changing along with angle and preparation method thereof
  • Powder coating with effect of color changing along with angle and preparation method thereof
  • Powder coating with effect of color changing along with angle and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] The powder coating with the angle-dependent color change effect described in this embodiment includes an epoxy resin particle system and a fluorocarbon resin particle system with a weight ratio of 1:1.

[0061] The epoxy resin particle system consists of the following components by weight:

[0062] Bisphenol A epoxy resin E-12 and dicyandiamide curing agent DYHARD 75 copies in total;

[0063] 18 parts of mica pigment coated with iron oxide and titanium dioxide with a particle size of 50-200μm;

[0064] 15.5 parts of pigments and fillers; including pigments and fillers. The filler is selected from barium sulfate such as W-44HB, and the pigment is selected from titanium dioxide CR826. The pigment and filler can be added according to the requirements of those skilled in the art. In the example, the adding ratio of the pigment and the filler is 1:1;

[0065] 1 part of auxiliary agent A, said auxiliary agent A includes corner coverage modifier 0.2 part, curing accelerator BASF2-MI ...

Embodiment 2

[0079] The powder coating with the angle-dependent color change effect described in this embodiment includes an epoxy resin particle system and a fluorocarbon resin particle system with a weight ratio of 7:3.

[0080] The epoxy resin particle system consists of the following components by weight:

[0081] A total of 30 copies of bisphenol A epoxy resin NPES-903 and substituted dicyandiamide curing agent (CASAMID710 from THOMAS SWAN);

[0082] Coated SiO 2 40 pieces;

[0083] 10 parts of pigments and fillers; including pigments and fillers. The filler is selected from barium sulfate such as W-44HB, and the pigment is selected from titanium dioxide CR826. The pigment and filler can be added according to the requirements of those skilled in the art. In the example, the additive ratio of the pigment and the filler is 3:1;

[0084] 1.8 parts of auxiliary agent A, which includes corner coverage modifier 0.5 part, curing accelerator BASF2-MI 0.3 part, wetting and dispersing agent 0.5 part...

Embodiment 3

[0097] The powder coating with the angle-dependent color change effect described in this embodiment includes an epoxy resin particle system and a fluorocarbon resin particle system with a weight ratio of 3:7.

[0098] The epoxy resin particle system consists of the following components by weight:

[0099] A total of 90 parts of bisphenol A epoxy resin (NPES-903) and hydrazide (ADH);

[0100] 0.2 parts of aluminum flakes with a particle size of 100-150μm;

[0101] 50 parts of pigments and fillers, including pigments and fillers, the filler is selected from aluminum hydroxide such as The pigment is carbon black 330R, wherein the pigment and filler can be added according to the requirements of the person skilled in the art. In this embodiment, the additive ratio of the pigment and the filler is 1:2;

[0102] 0.2 part of auxiliary agent A, which includes 0.1 part of curing accelerator BASF2-MI, wetting and dispersing agent 0.1 part;

[0103] The fluorocarbon resin particle system is comp...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
particle sizeaaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention belongs to the field of powder coating and particularly relates to power coating with an effect of color changing along with an angle. The powder coating with the effect of color changing along with the angle comprises epoxy resin, an epoxy resin particle system corresponding to a matched curing agent A and color changing pigments and a fluorocarbon resin particle system with fluorocarbon resin and a matched curing agent B. The parts by weight ratio of the epoxy resin particle system and the fluorocarbon resin particle system is 7-3:3-7. According to the powder coating, the color changing pigments are adhered in an epoxy resin layer successfully through bonding technology. In the process of curing, the color changing pigments are sunk into the coating bottom instead of floating to the surface of the coating along with the epoxy resin. A transparent fluorocarbon resin layer floating to the upper layer has the function of protecting the color changing pigments so that the color changing pigments are antioxidative. A structure of the color changing pigments is not damaged in the whole process and the color changing effect is thoroughly played.

Description

Technical field [0001] The invention belongs to the field of powder coatings, and in particular relates to a powder coating with a different color effect depending on the visual angle and a preparation method thereof. Background technique [0002] Different angle pigments refer to pigments whose color and gloss change with the change of the observation angle under light irradiation, or the pigments whose color changes with the illumination angle of the light source without changing the observation angle . This kind of pigment is designed in accordance with the requirements of the film structure, using the interference or diffraction effect between the reflected light. The reflection, interference and absorption phenomenon occur in the multilayer film structure of the pigment under visible light irradiation, so that the surface color of the pigment varies with the viewing angle. The change produces change. The color change effect of this kind of floppy pigment has a great relati...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/02C09D163/04C09D127/18C09D127/12C09D5/03C09D5/29C09D7/12
Inventor 张云伟
Owner NINGBO SOUTH SEA CHEM
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com