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Palladium plating solution for plastic surface electroplating and application thereof

A plastic and plating solution technology, applied in the field of metal plating solution, can solve the problems of bubbling, weak adhesion between the plastic surface substrate and the plating layer, peeling, etc., and achieve the effect of excellent physical properties and easy expansion of production

Inactive Publication Date: 2018-03-30
JIANGSU AOGUANG ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as a result of the activation pretreatment technology obtained by these methods, the adhesion between the plastic surface substrate and the coating is not strong, and the coating still often suffers from loosening, bubbling, and peeling after electroplating.

Method used

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  • Palladium plating solution for plastic surface electroplating and application thereof
  • Palladium plating solution for plastic surface electroplating and application thereof
  • Palladium plating solution for plastic surface electroplating and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Example 1: Effect of pH on coating composition and current efficiency.

[0018] The composition of the electroplating solution is as follows:

[0019] Dichlorotetraammine palladium 0.45mol / L, ammonia water 0.3mol / L, isopropanol 0.002mol / L, β-naphthalenesulfonic acid 0.002mol / L, nicotinic acid 0.001mol / L, nicotinamide 0.003mol / L naphthalene tris Sulfonic acid 0.002~0.006mol / L, sodium trimetaphosphate 0.002~0.004mol / L, pH8.0~9.0, solvent is water.

[0020] Plating method:

[0021] Put the cleaned plastic sheet into the palladium ferry solution, the current density is 0.1~2A / dm 2 , the temperature of the liquid is 28°C, and the tank pressure is 4V.

[0022] Electroplating effect: It can be seen from Table 1 that the electroplating effect is between pH 8.0 and 9.0.

[0023] Table 1 Effect of pH on coating composition and current efficiency

[0024]

Embodiment 2

[0026] The composition of the electroplating solution is as follows:

[0027] Dichlorotetraammine palladium 0.4mol / L, ammonia water 0.1mol / L, isopropanol 0.001mol / L, β-naphthalenesulfonic acid 0.001mol / L, nicotinic acid 0.001mol / L, nicotinamide 0.001mol / L naphthalene tris Sulfonic acid 0.0026mol / L, sodium trimetaphosphate 0.002mol / L, pH8.0~9.0, solvent is water.

[0028] Electroplating method: put the cleaned plastic sheet into the palladium solution, the current density is 0.1~2A / dm 2 , The temperature of the liquid is 35°C, and the tank pressure is 4V.

[0029] Electroplating effect: It can be seen from Table 2 that the current density is the best when the current density is 0.5-1.0.

[0030] Table 2 Effect of current density on coating composition and current efficiency

[0031]

[0032]

Embodiment 3

[0034] The composition of the electroplating solution is as follows:

[0035] Dichlorotetraammine palladium 0.5mol / L, ammonia water 0.5mol / L, isopropanol 0.003mol / L, β-naphthalenesulfonic acid 0.002mol / L, nicotinic acid 0.002mol / L, nicotinamide 0.005mol / L naphthalene tris Sulfonic acid 0.006mol / L, sodium trimetaphosphate 0.004mol / L, pH8.0~9.0, solvent is water.

[0036] Plating method:

[0037] Put the cleaned plastic sheet into the palladium ferry solution, the current density is 0.1~2.A / dm 2 , Transition temperature 15 ~ 40 ℃, tank pressure 4V.

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Abstract

The invention discloses a palladium plating solution for plastic surface electroplating. The palladium plating solution comprises the following components: 0.4-0.5mol / L of tetra-ammine dichloro-palladium, 0.1-0.5mol / L of ammonia liquor, 0.001-0.003mol / L of isopropoxide, 0.001-0.002mol / L of beta-naphthalene sulfonic acid, 0.001-0.002mol / L of niacin, 0.001-0.005 mol / L of nicotinamide, 0.002-0.006 mol / L of naphthol trisulfonic acid and 0.002-0.004mol / L of sodium trimetaphosphate. The pH is 8.0-9.0, and the solvent is water. The palladium plating solution for plastic surface electroplating and anapplication thereof, provided by the invention, have the advantages that production is easily enlarged, and a high-purity bright palladium coating with excellent physical properties can be formed on aplastic surface by utilizing the plating solution.

Description

technical field [0001] The invention belongs to the technical field of metal plating solutions, and in particular relates to a palladium plating solution for plastic surface electroplating and its application. Background technique [0002] The application of plastic products is more and more extensive. Because its gloss is not as good as that of metal, the decorative effect is relatively poor. Therefore, people try to metallize the plastic surface by electroplating the surface of the plastic to have a metallic luster and aesthetics. In recent years, with the rapid development of the automobile industry, electrical industry, household appliances, and jewelry industries, the technology of electroplating metal on plastic surfaces has also continued to develop. The plastic products after electroplating integrate the characteristics of plastic and metal. Not only the appearance can be beautifully decorated, but also the physical and mechanical properties of the products are great...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D3/52
CPCC25D3/52
Inventor 何爱芝闵宇霖沈喜训丁会梅彭红军袁小菊丁荣军
Owner JIANGSU AOGUANG ELECTRONICS