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Vacuum plating paint, and preparation and construction methods thereof

A technology of vacuum electroplating and coating, applied in vacuum evaporation coating, chemical instruments and methods, metal material coating process, etc. The effect of focusing on difficult problems, high safety and high production efficiency

Active Publication Date: 2011-08-31
江西赐彩新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the lack of smoothness of the surface of general engineering plastics, a primer is needed to coat and construct a smooth surface. To achieve various metal effects, a middle paint is needed to color the coating, and finally it is protected with a top coat to form a durable finish. The metal decoration effect, the current existing solution is solvent-based coating, which is cured by heat baking, which is highly volatile, time-consuming and energy-consuming for construction, and highly toxic to the human body.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0034] Example 1: Air atomization spraying with a low-pressure spray gun, the substrate is a PC mobile phone shell, the primer film thickness is 16μm, IR 55℃×6min, UV energy 1100mj / cm2; coating, vacuum plating at this time 50%: 50% indium tin alloy Add 35% solid dye to the film with 2%, film thickness 5μm, IR 55℃×6min, UV energy 380mj / cm2; topcoat film thickness 18μm, IR 60℃×6min, UV energy 1360mj / cm2; test performance adhesion is greater than 95%, hardness not less than H (1000g force), RCA (175g force) greater than 500 times, slight discoloration after boiling in boiling water for 60 minutes, adhesion greater than 95%, vibration wear for 120 minutes without falling off.

example 2

[0035] Example 2: Air atomization spraying with a low-pressure spray gun, the substrate is a PC mobile phone navigation key, the primer film thickness is 18 μm, IR 55 ° C × 6min, UV energy 1300mj / cm2; coating, at this time, vacuum aluminized film; add 18 to the middle paint %solid nano-color paste 3%, film thickness 7μm, IR 55℃×6min, UV energy 420mj / cm2; topcoat film thickness 20μm, IR 60℃×6min, UV energy 1600mj / cm2; test performance adhesion greater than 95 %, the hardness is not less than H (1000g force), and there is no falling off after 180min of vibration wear.

example 3

[0036] Example 3: Air atomization spraying with a low-pressure spray gun, the base material is PC+10% glass fiber mobile phone casing, the primer film thickness is 20μm, IR 60℃×6min, UV energy 1000mj / cm2; coating, at this time, vacuum indium coating ; Add 18% solid nano-color paste 2% to the middle paint, film thickness 6μm, IR 55℃×6min, UV energy 300mj / cm2; topcoat film thickness 16μm, IR 60℃×6min, UV energy 1200mj / cm2; test Performance The adhesion is greater than 95%, the hardness is not less than H (1000g force), RCA (175g force) is greater than 500 times, no discoloration and foaming after boiling in boiling water for 60 minutes, the adhesion is greater than 95%, and the vibration wear does not fall off after 120 minutes.

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Abstract

The invention discloses a vacuum plating paint, and preparation and construction methods thereof. The vacuum plating paint is composed of a priming coat, an undercoat and a finish coat, wherein the priming coat is prepared from polyurethane acrylate resin, acrylate, photoinitiator, organosiloxane leveling agent, butyl acetate, ethyl acetate and isopropanol; the undercoat is prepared from polyester-modified polyurethane acrylate resin, polyurethane acrylate resin, phosphate acrylate, photoinitiator, butyl acetate, ethyl acetate and isopropanol; and the finish coat is prepared from polyurethaneacrylate resin, acrylate, phosphate acrylate, photoinitiator, organosiloxane leveling agent, butyl acetate, ethyl acetate and isopropanol. By adopting imported environment-friendly raw materials, thevacuum plating paint has the advantage of low toxicity; no high-temperature high-pressure process is carried out in the production process, so the vacuum plating paint has the advantage of high safety; the vacuum plating paint does not need to be diluted, and thus, can be directly used conveniently; and the priming coat, undercoat and finish coat are cured under ultraviolet, so the vacuum platingpaint has the advantage of high production efficiency.

Description

technical field [0001] The invention relates to an electroplating coating for realizing the metallized decorative effect of engineering plastics through a vacuum coating process, in particular to a vacuum electroplating coating and a preparation and construction method thereof. technical background [0002] The metal vacuum plating process is a process in which the coating material is vaporized by a specific heating source in a high vacuum environment, and then deposited on the surface of the workpiece to achieve a metal effect. According to the form of the heating source, it is divided into vacuum evaporation plating and vacuum magnetron sputtering. shot coating. Due to the lack of smoothness of the surface of general engineering plastics, a primer is needed to coat and construct a smooth surface. To achieve various metal effects, a middle paint is needed to color the coating, and finally it is protected with a top coat to form a durable finish. The existing solution is so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/14C09D7/12C09D5/00C23C14/20B32B27/08B32B27/18
Inventor 郭丰华
Owner 江西赐彩新材料股份有限公司
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