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A kind of chromium-free metallization method of plastic substrate

A technology of plastic base material and chrome metal, applied in metal material coating process, superimposed layer plating, vacuum evaporation plating and other directions, can solve the problems of water resources waste, pollution of human ecological environment, etc., and achieve emission reduction and treatment. The effect of simplifying the process and reducing the discharge of wastewater

Active Publication Date: 2020-05-15
XIAMEN RUNNER IND CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

So much waste water not only causes waste of water resources, but also seriously pollutes the human ecological environment

Method used

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  • A kind of chromium-free metallization method of plastic substrate
  • A kind of chromium-free metallization method of plastic substrate

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as figure 1 As shown, the chromium-free metallization method for plastic substrates disclosed in this embodiment is specifically implemented as follows:

[0032] 1) Implement dry cleaning method to degrease and decontaminate the plastic substrate

[0033] Implement dry cleaning method on ABS plastic substrate, use hydrocarbon cleaning and then drying;

[0034] 2) Physical vapor deposition (PVD) metallization of plastic substrates

[0035] The ABS plastic substrate is subjected to physical vapor deposition plasma cleaning in sequence, and the bonding layer and the surface layer are plated. The process conditions of physical vapor deposition plasma cleaning are: bias voltage 350V, duty cycle 50%, argon flow rate 300SCCM, furnace vacuum pressure 0.2Pa, time 10min.

[0036] The process conditions for plating the bonding layer are: DC power sputtering, DC power sputtering power supply current is 2A, deposition time is 10min, bias voltage is 120V, duty cycle is 50%, a...

Embodiment 2

[0044] Such as figure 1 As shown, the chromium-free metallization method for plastic substrates disclosed in this embodiment is specifically implemented as follows:

[0045] 1) Implement dry cleaning method to degrease and decontaminate the plastic substrate

[0046] The dry cleaning method is implemented on the ABS plastic substrate, which is cleaned by hydrocarbon and then dried.

[0047] 2) Physical vapor deposition (PVD) metallization of plastic substrates

[0048] The ABS plastic substrate is subjected to physical vapor deposition plasma cleaning in sequence, and the bonding layer and the surface layer are plated. The process conditions of physical vapor deposition plasma cleaning are: bias voltage 450V, duty cycle 60%, argon flow rate 400SCCM, furnace vacuum pressure 0.2Pa, time 8min.

[0049] The process conditions of bonding layer plating are as follows: the medium frequency power supply current is 300A, the voltage is 500V, the deposition time is 70min, the bias vo...

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Abstract

The invention discloses a chrome-free metallization method of plastic base materials. The method comprises the steps of performing physical vapor deposition metallization to the plastic base materials pretreated, performing physical vapor deposition plasma cleaning, forming a bonding course and a surface course by plating, then directly performing electroplating to the plastic base materials treated above, and finally performing a conventional plating process. According to the chrome-free metallization method, traditional working procedures including electroplating roughening, reduction, sensitization, activation, electroless nickel plating and so forth are replaced with the above physical vapor deposition metallization procedures, so that the plastic surface treatment procedures are simplified, and the discharge of waste water is reduced greatly; and hexavalent chromium is not used in the whole metallization process, and no hexavalent chromium is discharged.

Description

technical field [0001] The invention belongs to the technical field of plastic surface treatment, and in particular relates to a chromium-free metallization method for a plastic substrate. Background technique [0002] Plastics have the characteristics of high impact strength, good processing formability, corrosion resistance and light weight. Metallization of plastics not only maintains the original characteristics of plastics, but also has the electrical and magnetic properties of metals, decoration and It can be welded and other properties, and improve the mechanical strength of the plastic surface, prolong its service life and reduce costs. [0003] In the prior art, when metallizing plastic surfaces such as acrylonitrile-butadiene-styrene (ABS) resins by plating, in order to improve the adhesion between the plastic surface and the coating, the usual practice is to The plastic surface is roughened prior to the metal deposition operation to enable sufficient adhesion of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D5/56C25D3/12C23C14/20C23C14/02C23C28/02
CPCC23C14/022C23C14/205C23C28/021C25D3/12C25D5/56
Inventor 乔永亮林志敏蒋义锋黄先杰张先超谢国亮黄贤明谢英伟杨玉祥
Owner XIAMEN RUNNER IND CORP