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Imitated gold plating powder coating and preparation method thereof

A powder coating and gold powder technology, applied in the field of imitation gold-plated powder coating and its preparation, can solve the problems of difficult to replace the electroplating layer and large color difference, and achieve the effects of improving mechanical properties, heat transfer performance, strong metallic feeling, and reducing costs

Inactive Publication Date: 2019-01-04
厦门唯丽固新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The powder coating prepared according to this scheme has good gloss and metallic feeling, but the color of the powder coating is quite different from that after silver plating or gold plating, and it is difficult to replace the electroplating layer

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Present embodiment provides a kind of imitation gold-plated powder coating, by 49% epoxy resin, 49% polyester resin, 1% 2-butyl acrylate homopolymer, 0.5% polytetrafluoroethylene and 0.5% gold powder Composition, wherein the epoxy resin is a chemical product with a CAS number of 38891-59-7, the polyester resin is a carboxyl-terminated saturated polyester resin, and the gold powder is an imported copper-zinc alloy coated with a silicon dioxide film on the surface.

[0037] The preparation method of the imitation gold-plated powder coating of the present embodiment is as follows:

[0038] Step 1: Weigh 14.7kg of epoxy resin, 14.7kg of polyester resin, 0.3kg of 2-butyl acrylate homopolymer and 0.15kg of polytetrafluoroethylene, add each raw material to the mixing tank, and mix well .

[0039] Step 2: Add the mixture obtained in Step 1 into the extruder, blend it into the tablet and extrude to obtain the tablet, wherein the screw speed of the extruder is 45Hz / min, and the ...

Embodiment 2

[0043] The difference between the present embodiment and the first embodiment mainly lies in that the imitation gold-plated powder coating is made of 40% epoxy resin, 58% polyester resin, 0.8% 2-butyl acrylate homopolymer, 0.7% polytetrafluoroethylene , 0.3% of gold powder and 0.2% of carbon nanotubes, wherein the epoxy resin is nano-modified epoxy resin.

[0044] The nano-modified epoxy resin that present embodiment adopts is prepared according to the following steps:

[0045] Put 8kg of bisphenol A and 1.04kg of nano-calcium carbonate into the reactor, add 13.84kg of sodium hydroxide solution with a mass fraction of 10% in the reactor, start the reactor, and ultrasonically stir for 30 minutes at 65°C, wherein , the stirring rate of the reactor is 250r / min, and the ultrasonic power of the reactor is 100W; when the temperature in the reactor drops to 46±1°C, add 10.64kg of epichlorohydrin, and polymerize at 80°C for 2.5h, to The polymer is stirred and washed with water, washe...

Embodiment 3

[0052] The difference between the present embodiment and the first embodiment mainly lies in that the imitation gold-plated powder coating is composed of 58% epoxy resin, 40% polyester resin, 1% 2-butyl acrylate homopolymer, 0.6% polytetrafluoroethylene , 0.3% of gold powder and 0.1% of carbon nanotubes, wherein the epoxy resin is nano-modified epoxy resin.

[0053] The nano-modified epoxy resin that present embodiment adopts is prepared according to the following steps:

[0054] Put 9kg of bisphenol A and 2.16kg of nano-calcium carbonate into the reactor, add 15.57kg of sodium hydroxide solution with a mass fraction of 10% in the reactor, start the reactor, and ultrasonically stir for 25 minutes at 75°C, wherein , the stirring rate of the reactor is 350r / min, and the ultrasonic power of the reactor is 200W; when the temperature in the reactor drops to 49±1°C, add 11.97kg of epichlorohydrin, polymerize at 90°C for 2h, and Add water and stir to wash the polymer, wash it repeat...

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Abstract

The invention relates to an imitated gold plating powder coating and a preparation method thereof, belongs to the technical field of powder coatings and aims to solve the problem that an existing powder coating has greater color difference after gold plating and difficultly replaces plated gold. The adopted technical scheme is that the imitated gold plating powder coating is prepared from, by weight, the following components: 40%-58% of epoxy resin, 40%-58% of polyester resin, 0.8%-1% of flatting agent, 0.5%-0.7% of lubricating agent and 0.1%-0.5% of gold powder. The flatting agent is one of an organic silicon type flatting agent and a crylic acid type flatting agent, the lubricating agent is one of graphite, molybdenum disulfide and polytetrafluoroethylene, and the gold powder is copper and zinc alloy. The imitated gold plating powder coating has the advantages of being very similar to plated gold in color, good in mechanical property and excellent in corrosion resistance performanceand can replace a gold plating process.

Description

technical field [0001] The invention relates to the technical field of powder coatings, in particular to an imitation gold-plated powder coating and a preparation method thereof. Background technique [0002] Powder coating is a solid powder synthetic resin coating composed of solid resin, pigments, fillers, additives, etc. It uses air as the dispersion medium, has the characteristics of no solvent pollution, 100% film formation, and low energy consumption. It is the most promising One of the environmentally friendly coatings. Due to its significant advantages in environmental protection, powder coatings have been applied in many fields and replaced traditional paints. [0003] Electroplating is the process of plating a layer of other metals or alloys on the surface of certain metals using the principle of electrolysis, so that a layer of metal film is attached to the surface of metal or other material parts, so as to prevent metal oxidation and produce improved wear resist...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D167/00C09D5/03C09D7/62C09D7/61
CPCC08K2003/085C08K2003/0893C08K2201/011C09D5/033C09D5/035C09D163/00C09D167/00C08L67/00C08K9/02C08K3/08C08K3/041C08K3/04C08L63/00
Inventor 沈建富李晋周培德
Owner 厦门唯丽固新材料科技有限公司
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