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Ion metallic paint for electroless copper plating pretreatment of plastic matrix and process

A plastic substrate, chemical copper plating technology, applied in metal material coating process, liquid chemical plating, electrophoretic coatings, etc. Difficulties and other problems, to achieve the effect of good binding force, simple and cheap environmental protection binding force, and good catalytic performance

Active Publication Date: 2014-01-22
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the technical problems of difficulty in starting electroless copper plating, low bonding force between the copper layer and the coating layer and poor uniformity of the coating layer in the existing method of using a paint coating method to make the surface of a plastic workpiece have catalytic activity. And provide a kind of ionic metal coating and process for plastic substrate electroless copper plating pretreatment

Method used

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  • Ion metallic paint for electroless copper plating pretreatment of plastic matrix and process
  • Ion metallic paint for electroless copper plating pretreatment of plastic matrix and process
  • Ion metallic paint for electroless copper plating pretreatment of plastic matrix and process

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specific Embodiment approach 1

[0032] Specific embodiment one: a kind of ionic metal paint that is used for the pretreatment of electroless copper plating of plastic substrate according to the present embodiment consists of 5~20 parts of biological binder solution, 0.01~5 parts of metal salt, 1 It is obtained by mixing ~10 parts of metal complexing agent, 0.1~1 part of wetting agent and 65~90 parts of deionized water, and then adjusting the pH of the solution to 6~9 with a pH regulator; bioadhesive solution It is composed of 0.5-15 parts of biological binder monomer, 0.1-5 parts of oxidizing agent, 0.5-5 parts of pH buffer agent, 0.1-1 part of silane coupling agent and 75-95 parts of Made of deionized water; the biobinder monomers are dopamine hydrochloride, norepinephrine, 5-hydroxydopamine, droxidopa, α-methyldopamine, dexodopa, levodopa, α- One or a combination of methyldopa and nitrodopamine.

[0033] The bioadhesive monomers of this embodiment all have a catechol structure.

specific Embodiment approach 2

[0034] Specific embodiment two: the difference between this embodiment and specific embodiment one is that the oxidizing agent in the biological binder solution is one or more of sodium hypochlorite, potassium permanganate, oxygen, ammonium persulfate and sodium peroxide Combination; others are the same as in Embodiment 1.

[0035] When the oxidizing agent is a composition, each oxidizing agent is combined in any ratio.

specific Embodiment approach 3

[0036] Specific embodiment three: this embodiment is different from specific embodiment one or two in that the pH buffering agent in the bio-binder solution is borax, sodium acetate, tris hydrochloride or sodium dihydrogen phosphate; others are the same as specific embodiment one or two the same.

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Abstract

The invention discloses ion metallic paint for electroless copper plating pretreatment of a plastic matrix and a process. The invention relates to paint for surface treatment of the plastic matrix and a method for carrying out surface treatment by utilizing the paint. The invention aims to solve the technical problems of difficulty in flash plating of electroless copper plating, low binding force between a copper layer and a paint layer and poor uniformity of the paint layer of an existing method of enabling the surface of a plastic workpiece to have catalytic activity by adopting a paint coating method. The paint is prepared by mixing biological binder solution, metal salt, a metal chelating agent, a wetting agent and deionized water and then regulating pH of the solution to the range of 6 to 9 by a pH modifier. The pretreatment process comprises the following steps: after carrying out chemical degreasing processing on the surface of the plastic matrix, coating the surface of the plastic matrix with the ion metallic paint; and then carrying out low temperature drying to obtain a coating with a dry film thickness of 0.1 to 1 micron, and completing electroless copper plating pretreatment of the plastic matrix. The method has a high flash plating speed, obtains the uniform coating and can be used in the field of chemical plating.

Description

technical field [0001] The invention relates to a coating used for surface treatment of plastic substrates and a surface treatment method thereof, in particular to a coating used for pretreatment of chemical copper plating on the surface of plastic substrates and a process for using the same to perform pretreatment of electroless copper plating. Background technique [0002] Plastic has many advantages such as high impact strength, corrosion resistance, good processing formability, and light weight. After metallization, plastic can have many advantages such as electrical conductivity, thermal conductivity, magnetic conductivity, decoration, and weldability. At present, plastic metallization mainly includes copper plating, nickel plating, silver plating, gold plating, palladium plating and so on. The application of plastic copper plating involves many fields such as engineering plastics, printed boards, and electronic plating. Plastic copper plating mainly includes physical ...

Claims

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Application Information

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IPC IPC(8): C09D5/44C23C18/30C23C18/40
Inventor 李宁王艳青黎德育
Owner HARBIN INST OF TECH
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