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Method for electroplating plastic base material

A plastic base material and base material technology, applied in the field of plastic surface treatment, can solve the problems of wasting water resources, large environmental pollution, and polluting the natural ecological environment, so as to reduce the discharge of waste water, reduce the harm to the environment and human beings, and reduce discharge Effect

Active Publication Date: 2012-02-01
XIAMEN RUNNER IND CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Chinese patent CN100552093C discloses a special activator and electroplating process for plastic electroplating. In this process, a large amount of chromic acid (hexavalent chromium) is used for coarsening and electroplating chromium, which is not used for recycling and has great environmental pollution.
So much wastewater not only wastes water resources, but also seriously pollutes the natural ecological environment of human beings, so it is urgent to improve or replace the existing electroplating process
The existing conventional process flow of plastic electroplating is: degreasing and wax removal, roughening, sensitization, activation, reduction, chemical nickel, electroplating coke copper, electroplating acid copper, electroplating nickel, and finally electroplating chromium, resulting in a large amount of waste water and heavy metal pollution thing

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] (1) Implement dry cleaning method to degrease and decontaminate plastic substrates

[0035] Implement dry cleaning method on ABS plastic substrate, adopt plasma flame treatment and then conduct electrostatic treatment to remove oil and dust on the surface of ABS plastic substrate;

[0036] (2) PVD (Physical Vapor Deposition) metallization of plastic substrates

[0037] PVD (Physical Vapor Deposition) metallization is carried out on the ABS plastic substrate, and PVD plasma modification, metal plating bottom layer, metal transition layer and metal conductive layer are carried out in sequence. The plasma modification process conditions are ion source current 0.5A, bias voltage 80V, duty cycle 80%, argon flow rate 50SCCM, oxygen flow rate 50SCCM, vacuum pressure in the furnace 0.2Pa, activation time 5min to achieve the purpose of cleaning and activating the surface of the substrate, metal-plated bottom layer, metal transition layer and metal conductive layer are Using a h...

Embodiment 2

[0054] (1) Implement dry cleaning method to degrease and decontaminate plastic substrates

[0055] Implement dry cleaning method on the plastic substrate, and use hydrocarbon vacuum cleaning to remove oil and dust on the surface of the plastic substrate;

[0056] (2) PVD (Physical Vapor Deposition) metallization of plastic substrates

[0057] Perform PVD (Physical Vapor Deposition) metallization on plastic substrates, and sequentially implement PVD plasma modification, metal plating bottom layer, metal transition layer and metal conductive layer. The plasma modification process conditions are ion source current 0.4A, bias voltage 100V , the duty cycle is 70%, the argon flow rate is 50SCCM, the oxygen flow rate is 80SCCM, the vacuum pressure in the furnace is 0.3Pa, and the activation time is 6min to achieve the purpose of cleaning and activating the substrate surface. High-power medium-frequency pulse power supply, metal-plating bottom current is 300 amperes, voltage is 500 v...

Embodiment 3

[0075] (1) Implement dry cleaning method to degrease and decontaminate plastic substrates

[0076] Implement dry cleaning method on the plastic substrate, use dry ice degreasing treatment and then conduct electrostatic treatment to remove oil and dust on the surface of the plastic substrate;

[0077] (2) PVD (Physical Vapor Deposition) metallization of plastic substrates

[0078] Perform PVD (Physical Vapor Deposition) metallization on plastic substrates, and sequentially implement PVD plasma modification, metal plating bottom layer, metal transition layer and metal conductive layer. The plasma modification process conditions are ion source current 0.5A, bias voltage 80V , the duty cycle is 80%, the argon flow rate is 80SCCM, the oxygen flow rate is 80SCCM, the vacuum pressure in the furnace is 0.2Pa, and the activation time is 8min to achieve the purpose of cleaning and activating the substrate surface. High-power intermediate frequency pulse power supply, metal plating bott...

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Abstract

The invention provides a method for electroplating a plastic base material and relates to a plastic surface processing method. The invention provides the method for electroplating the plastic base material, which can realize a surface metallization of a plastic material, simplifies an electroplating process flow, greatly reduces a discharging amount of waste water, reduces pollution to the environment and the human, and is suitable for various plastic surface requirements. The method comprises the following steps of: pre-treating the plastic base material; carrying out physical vapor deposition metallization on the treated plastic base material and sequentially carrying out physical vapor deposition plasma modification, and plating a metal bottom layer, a metal transition layer and a metal conducting layer; directly electroplating copper on the treated plastic base material or electroplating copper and electroplating nickel on the treated plastic base material; carrying out drawing treatment on the surface of an electroplated copper layer of the treated plastic base material or carrying out the drawing treatment on the surface of an electroplated copper and electroplated nickel layer of the treated plastic base material; and after hanging the treated plastic base material into a PVD (Physical Vapor Deposition) furnace to carry out plasma treatment, depositing a chromium layer or carrying out dry type dust removal and static removal on the treated plastic base material and then carrying out organic coating protection treatment on the treated plastic base material.

Description

technical field [0001] The invention relates to a plastic surface treatment method, in particular to an environmentally friendly electroplating method for a plastic base material. Background technique [0002] Conventional plastic electroplating processes include high-concentration chromic acid roughening and hexavalent chromium electroplating, and hexavalent chromium is usually discharged into electroplating wastewater. Chromium in wastewater is relatively harmful to humans and the environment! Common chromium compounds include hexavalent chromic anhydride, potassium dichromate, sodium dichromate, potassium chromate, sodium chromate, etc.; trivalent chromium trioxide (chrome green, Cr2O3); divalent chromous oxide . Among the chromium compounds, hexavalent chromium is the most toxic, followed by trivalent chromium. According to research, chromium is a trace element required for the life and health of mammals. Chromium deficiency can cause atherosclerosis. Adults need 500...

Claims

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Application Information

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IPC IPC(8): C25D5/56C25D3/38
Inventor 余水柯学标乔永亮李明仁
Owner XIAMEN RUNNER IND CORP
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