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Method for implementing semi-dry plating on surface of plastic substrate

A base material surface, semi-dry method, applied in the direction of sputtering coating, superimposed layer coating, vacuum evaporation coating, etc., can solve the problems of sewage discharge, environmental pollution, environmental pollution, etc., to expand the scope and reduce Pollution, the effect of simplifying the electroplating process

Active Publication Date: 2011-07-20
XIAMEN RUNNER IND CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this traditional plastic electroplating process has two major disadvantages: (1) The plastic substrates that can be electroplated are limited to ABS, PC / ABS and a very small number of nylons; (2) The pretreatment of the electroplating process (including chemical degreasing and cleaning , coarsening, neutralization, sensitization, electroless nickel plating and other processes) cause a large amount of sewage discharge, which is very unenvironmental
[0007] The disadvantages of the above two methods of 1) and 2) are that the use of high chromic acid or spraying conductive paint will bring serious environmental pollution problems, and the production cost is relatively high
The vacuum coating metallization technology used on the plastic substrate is more environmentally friendly than the above two methods 1) and 2), but this simple vacuum coating method, the bonding force between the plastic substrate and the PVD metal layer Not good, after electroplating, there may be problems such as delamination between the plastic substrate and the metal, blistering, etc., or the final electroplating product will fail after the cold and heat cycle test

Method used

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  • Method for implementing semi-dry plating on surface of plastic substrate
  • Method for implementing semi-dry plating on surface of plastic substrate

Examples

Experimental program
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Effect test

Embodiment 1

[0025] The semi-dry electroplating technological process of embodiment 1 plastic part surface smooth situation

[0026] The specific steps of semi-dry electroplating on the surface of the car door handle of PC+ABS plastic substrate are as follows:

[0027] Step 1 (injection molding): Dry the PC+ABS engineering plastic resin at 80°C for 4 hours, and then mold it into the plastic part of the car door handle by injection molding, and the surface of the plastic part is smooth.

[0028] Step 2 (plastic parts cleaning and plasma surface modification): the cleaning (dry cleaning) process before coating is to wipe the surface with anhydrous alcohol, and plasma glow cleaning in the PVD furnace. The plasma glow cleaning parameters are: Ar flow rate 65sccm, glow cleaning time 5min, bias voltage 70V, bias vacuum ratio 70%, ion source current 0.3A.

[0029] The plastic parts after cleaning are put into the vacuum furnace to carry out plasma surface modification, and the parameter of plasm...

Embodiment 2

[0033] The semi-dry electroplating technological process of the rough and uneven situation of the rubber part surface of embodiment 2

[0034] The specific steps for semi-dry electroplating on the surface of the plastic substrate of the faucet handle of polyamide modified engineering plastics are as follows:

[0035] Step 1 (injection molding): Dry the polyamide modified rubber particles at 120°C for 4 hours, and then mold them into plastic parts for faucet handles by injection molding. Since glass fiber is used in the modified formula, there are tiny oranges on the surface of the injected plastic parts. skin texture.

[0036] Step 2 (plastic parts cleaning and plasma surface modification): the cleaning (dry cleaning) process before coating is anhydrous alcohol wiping, and plasma glow cleaning in the PVD furnace. The plasma glow cleaning parameters are: Ar gas flow 65sccm, glow cleaning time 5min, ion source current 0.3A, bias voltage 70V, bias voltage vacuum ratio 70%, ion s...

Embodiment 3

[0042] Implementation of semi-dry electroplating technology on the surface of large-density ball head plastic substrate of polyamide modified engineering plastics

[0043] Step 1 (injection molding): Dry the polyamide-modified rubber particles at 120°C for 4 hours, and then mold them into rubber parts with high-density ball heads by injection molding, and the surface of the rubber parts is smooth.

[0044] Step 2 (cleaning and surface modification of plastic parts): Put the dried plastic parts into a vacuum furnace for plasma glow cleaning and plasma surface modification. The parameters of plasma glow cleaning are: Ar gas flow rate 65sccm, glow cleaning Time 5min, ion source current 0.3A, bias voltage 70V, bias voltage vacuum ratio 70%, ion source current 0.3A plasma glow surface modification parameters are: O 2 The gas flow is 100 sccm, the glow surface modification time is 10 minutes, the bias voltage is 70V, and the bias vacuum ratio is 70%.

[0045] Step 3 (PVD metal bott...

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Abstract

The invention relates to a plastic plating method, in particular to a method for implementing semi-dry plating on the surface of a plastic substrate, realizing the surface metallization of a plastic material, simplifying a plating process, greatly reducing wastewater discharge amount, lessening environmental pollution and expanding the range of platable plastic substrates. The method comprises the following steps of: cleaning and dedusting the plastic substrates without using water; carrying out primary activation treatment to the plastic substrate surface; sequentially carrying out the treatment of a PVD (Physical Vapor Deposition) metalized bottom layer, an alloy transition layer and a metal conductive layer to the plastic substrate surface subjected to the activation treatment; carrying out ultrasonic washing and secondary activation treatment to the treated plastic substrate; directly electroplating acid copper on the treated plastic substrate or transferring in a nickeling bath to implement nickeling; transferring the treated plastic substrates into a chromeplating bath for final chromium plating or transferring in a PVD furnace for depositing a chromium layer.

Description

technical field [0001] The invention relates to a plastic electroplating method, in particular to a method for implementing semi-dry electroplating on the surface of a plastic substrate. Background technique [0002] Since the metallization and electroplating process on the surface of the plastic substrate can achieve the decorative functions of anti-corrosion, wear resistance, scratch resistance and beautiful appearance, the application range of the plastic substrate has been expanded. But this traditional plastic electroplating process has two major disadvantages: (1) The plastic substrates that can be electroplated are limited to ABS, PC / ABS and a very small number of nylons; (2) The pretreatment of the electroplating process (including chemical degreasing and cleaning , Coarsening, neutralization, sensitization, electroless nickel plating and other processes) cause a large amount of sewage discharge, which is not environmentally friendly. Therefore, it is very necessary...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C28/02C23C14/20C25D5/10C25D5/56
CPCC25D5/14C25D5/48C23C14/20C25D5/56C25D5/12C23C14/021C25D5/627C25D5/623
Inventor 柯学标乔永亮杨波李明仁
Owner XIAMEN RUNNER IND CORP
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