Ultraviolet light curing vacuum coating foundation and finish

A technology of vacuum coating and ultraviolet light, which is applied in vacuum evaporation coating, sputtering coating, ion implantation coating, etc., can solve the problems of poor adhesion, poor wear resistance, uneven surface of plated parts, etc., and achieve adhesion Strong, excellent wear resistance, excellent environmental test performance

Inactive Publication Date: 2008-08-27
HUIZHOU CHANGRUNFA PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent CN1281011 is a kind of UV-curable vacuum coating primer and topcoat. The paint is composed of acrylic modified bisphenol A epoxy resin, polyhydric alcohol, hydroxyethyl acrylate and toluene diisocyanate adduct, and reactive diluent , photoinitiator, auxiliary agent, the topcoat is composed of polyester acrylate, novolac epoxy acrylate, reactive diluent, photoinitiator, adhesion promoter, auxiliary agent, and the above compositions are all proportioned according to a certain weight percentage. , mixed and stirred evenly, and prepared. With the miniaturization and refinement of modern digital products, the existing coatings have the disadvantages of poor coating adhesion, uneven surface and poor wear resistance of the coated parts.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A UV-curable vacuum coating primer and topcoat, wherein the primer is composed of: 30wt% of difunctional aliphatic urethane acrylate, 10wt% of epoxy acrylate, 5wt% of trifunctional acrylate, 5wt% of difunctional acrylate, Adhesion promotion resin 5wt%, photoinitiator 1-5wt%, diluent 20-60wt%, auxiliary agent 0.01-1wt%; topcoat composition: high-functional aliphatic urethane acrylate 6wt%, macromolecular resin 8wt%, 20wt% of difunctional aliphatic urethane acrylate, 11wt% of trifunctional aliphatic urethane acrylate, 4wt% of adhesion promoting resin, 1-5wt% of photoinitiator, 20-60wt% of diluent, 0.01-1wt% of auxiliary agent, wherein The adhesion promoting resin is ethylene-vinyl acetate copolymer, the photoinitiator is diethyl phenylphosphinate, the diluent is hexanediol diacrylate, and common additives are added.

[0016] The casings of digital electronic products such as mobile phones, MP3 players, and digital cameras that have been treated with the UV-cured UV vacuum...

Embodiment 2

[0021] A UV-curable vacuum coating primer and topcoat, wherein the primer is composed of: 8wt% of difunctional aliphatic urethane acrylate, 30wt% of epoxy acrylate, 10wt% of trifunctional acrylate, 10wt% of difunctional acrylate, 8wt% adhesion promotion resin, 1-5wt% photoinitiator, 20-60wt% diluent, 0.01-1wt% auxiliary agent; topcoat consists of: 20wt% high-functional aliphatic urethane acrylate, 8wt% macromolecular resin, 10wt% of difunctional aliphatic urethane acrylate, 15wt% of trifunctional aliphatic urethane acrylate, 4wt% of adhesion promoting resin, 1-5wt% of photoinitiator, 20-60wt% of diluent, 0.01-1wt% of auxiliary agent, the above The adhesion promotion resin in the primer and top paint is propylene-vinyl acetate copolymer, the photoinitiator is benzophenone, the diluent is neopentyl glycol diacrylase, and common auxiliary agents are added.

[0022] The casings of digital electronic products such as mobile phones, MP3 players, and digital cameras that have been tr...

Embodiment 3

[0027] A UV-curable vacuum coating primer and topcoat, wherein the primer is composed of: 8wt% of difunctional aliphatic urethane acrylate, 12wt% of epoxy acrylate, 18wt% of trifunctional acrylate, 24wt% of difunctional acrylate, Adhesion promotion resin 7wt%, photoinitiator 1-5wt%, diluent 20-60wt%, auxiliary agent 0.01-1wt%; topcoat composition: high-functional aliphatic urethane acrylate 15wt%, macromolecular resin 25wt%, 15wt% of difunctional aliphatic urethane acrylate, 12wt% of trifunctional aliphatic urethane acrylate, 4wt% of adhesion promoting resin, 1-5wt% of photoinitiator, 20-60wt% of diluent, 0.01-1wt% of auxiliary agent, the above The adhesion-promoting resin described in the primer and topcoat is in the phenoxydimethylsilane compound; the photoinitiator is α-hydroxyisopropyl benzophenone; the diluent is trimethylol Propane triacrylate, plus common auxiliaries.

[0028] The casings of digital electronic products such as mobile phones, MP3 players, and digital ca...

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PUM

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Abstract

The invention discloses ultraviolet light curing vacuum plating primer and finish, wherein primer is formed by random proportion of double function aliphatic polyurethane acrylic ester, epoxy acrylic ester, trifunctional acrylic ester, double function acrylic ester, adhesion promoting resin, photo initiator, diluent, and auxiliary agent, finish is formed by random proportion of high function aliphatic polyurethane acrylic ester, large molecular resin, double functional aliphatic polyurethane acrylic ester, trifunctional aliphatic polyurethane acrylic ester, adhesion promoting resin, photo initiator, diluent, and auxiliary agent. The surface of substrate material is conducted with painting treatment of primer, which increases the plainness and adhesion fastness of the vacuum plating film, and vacuum plating film is conducted with the surface painting treatment of UV vacuum plating finish, which can prevent oxidization of metal film layer and endows vacuum plating film with excellent surface abrasion resistance and extreme wonderful hand feeling.

Description

technical field [0001] The invention relates to an ultraviolet light curing coating, in particular to a coating used in conjunction with vacuum coating. Background technique [0002] Vacuum coating technology, also known as physical vapor deposition technology (PVD), is a new process that forms a composite film by plating metal on the surface of a plastic substrate under vacuum conditions. The metal material to be plated can be gold, silver, copper, Zinc, chromium, aluminum, etc., so as to realize the metallization of the plastic appearance. In order to make the coating flat, have metallic luster, brightness and other properties, it is necessary to coat the primer before and after coating. Chinese patent CN1281011 is a kind of UV-curable vacuum coating primer and topcoat. The paint is composed of acrylic modified bisphenol A epoxy resin, polyhydric alcohol, hydroxyethyl acrylate and toluene diisocyanate adduct, and reactive diluent , photoinitiator, auxiliary agent, the top...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D4/00C09D175/14C23C14/24
Inventor 何吉刚
Owner HUIZHOU CHANGRUNFA PAINT
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