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Plastic metalizing method

A plastic metal roughening treatment technology, applied in metal material coating process, liquid chemical plating, coating, etc., can solve the problems of large environmental pressure, etc., and achieve the effect of saving resources, avoiding use and residue, and reducing pollution

Inactive Publication Date: 2012-08-22
SHANDONG JIANZHU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the heavy metal ions such as tin and palladium contained in the previous treatment liquid, it is easy to cause a large environmental pressure

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The basic process of pretreatment is: substrate mechanical treatment - water washing - internal stress relief - water washing - chemical degreasing - H 2 o 2 +H 2 SO 4 Chemical roughening—ultrasonic washing—drying—weighing—activation of gold nanoparticles.

[0028] Relief of internal stress is carried out at room temperature. Acetone solution is used for relieving internal stress, and the concentration of acetone solution is 250mL / L; the time for relieving internal stress is 20min.

[0029] Chemical degreasing is carried out at 40°C; the formula of the degreasing fluid used is:

[0030] NaOH 16g / L

[0031] Na 2 CO 3 18g / L

[0032] Na 3 PO 4 14 g / L.

[0033] h 2 o 2 +H 2 SO 4 Coarsening process: H 2 o 2 Concentration is 100mL / L, H 2 SO 4 The concentration is 400mL / L, the temperature is room temperature, and the time is 30min.

[0034] Activation process: the concentration of gold nanoparticles is 3.5×10 -4 mol / L, the temperature...

Embodiment 2

[0044] The basic flow of the pretreatment is the same as in Example 1.

[0045] Chemical degreasing is carried out at 50°C; the formula of the degreasing fluid used is:

[0046] NaOH 16g / L

[0047] Na 2 CO 3 18g / L

[0048] Na 3 PO 4 14 g / L.

[0049] h 2 o 2 +H 2 SO 4 Coarsening process: H 2 o 2 Concentration is 120mL / L, H 2 SO 4 The concentration is 420mL / L, the temperature is room temperature, and the time is 25min.

[0050] Activation process: the concentration of gold nanoparticles is 2.0×10 -4 mol / L, the temperature is normal temperature, and the time is 18 minutes.

[0051] The plating process is: 10g / L copper sulfate + 10mL / L formaldehyde + 45g / L potassium sodium tartrate + 1.2g / L nickel chloride + 5mg / L potassium ferrocyanide + 5g / L sodium carbonate to prepare the copper plating solution, the pH of the plating solution It is adjusted to 13.0, and the plating temperature is 45°C.

Embodiment 3

[0053] The basic flow of the pretreatment is the same as in Example 1.

[0054] Chemical degreasing is carried out at 45°C; the formula of the degreasing fluid used is:

[0055] NaOH 16g / L

[0056] Na 2 CO 3 18g / L

[0057] Na 3 PO 4 14 g / L.

[0058] h 2 o 2 +H 2 SO 4 Coarsening process: H 2 o 2 Concentration is 130mL / L, H 2 SO 4 The concentration is 450mL / L, the temperature is room temperature, and the time is 20min.

[0059] Activation process: the concentration of gold nanoparticles is 5.0×10 -4 mol / L, the temperature is normal temperature, and the time is 15 minutes.

[0060] The plating process is: 12g / L copper sulfate + 15mL / L formaldehyde + 48g / L potassium sodium tartrate + 1.5g / L nickel chloride + 7mg / L potassium ferrocyanide + 7g / L sodium carbonate to prepare the copper plating solution, the pH of the plating solution Adjusted to 13.2, the plating temperature is 47 ° C.

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Abstract

The invention relates to a plastic metalizing method and aims to provide a plastic metalizing method which reduces the use and residues of heavy metal ions, reduces pollution, saves resources and is easy to operate. The method comprises the following steps of: A) roughening a plastic matrix in an H2O2 and H2SO4 solution; B) performing ultrasonic wave washing and blow-drying of the roughened plastic, and activating in a metal nano-particle solution; and C) plating the activated plastic in copper plating liquid. The method provided by the invention has the beneficial effects that: firstly the traditional pretreatment technology of plastic chemical cooper plating is improved by use of the catalysis of the metal nano particles, and the three-step method of roughening, sensitization and activation is changed into a two-step method of roughening and activation, thus the operation is easy; and the use and residues of heavy metal ions are avoided, the pollution is reduced, and the resources are saved.

Description

technical field [0001] The invention relates to a method for metallizing plastics. 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. There are many plastic surface metallization technologies, and electroless copper plating is widely used because of its wide adaptability to the substrate, good throwing and deep plating ability, and convenient production. A prerequisite for electroless copper plating is that the surface of the substrate on which copper is deposited must have catalytic activity, while plastics do not have catalytic activity. Therefore, the surface must b...

Claims

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Application Information

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IPC IPC(8): C23C18/22C23C18/30C23C18/40
Inventor 马洪芳王艺涵
Owner SHANDONG JIANZHU UNIV
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