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Surface modification liquid for plastic and method of metallizing plastic surface therewith

A surface modification and metallization technology, applied in liquid chemical plating, metal material coating process, coating and other directions, can solve the problems of insufficient catalyst metal adsorption, insufficient surface modification, and small etching roughness. , to achieve the effect of realizing the plating process, the energy cost is favorable, and the bonding is improved

Inactive Publication Date: 2009-04-01
EBARA-UDYLITE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this treatment, the degree of roughness of etching is small and the modification of the surface is insufficient. Therefore, the adsorption amount of the catalyst metal used for electroless plating or direct plating is insufficient, and there is a problem of poor practicality.

Method used

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  • Surface modification liquid for plastic and method of metallizing plastic surface therewith
  • Surface modification liquid for plastic and method of metallizing plastic surface therewith
  • Surface modification liquid for plastic and method of metallizing plastic surface therewith

Examples

Experimental program
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Effect test

preparation example Construction

[0035] The palladium complex (I) can be prepared by mixing 1 mol of palladium salt solution with more than 2 mol of basic amino acid aqueous solution at a temperature of about 20°C to 100°C, and after completely dissolving it, the pH value is adjusted to 4.0 to 4.0. 7.5 or so to proceed.

[0036] The palladium complex (I) solution obtained as described above may be a refined product purified by known means, or a powder obtained by concentration and freeze-drying, if necessary.

[0037] The catalyst-imparting treatment liquid can be prepared by adjusting the palladium complex (I) solution prepared as above to a predetermined concentration, or by diluting or dissolving the above-mentioned purified product or powder with water to a predetermined concentration.

[0038] The concentration of the palladium complex (I) solution in the catalyst-imparting treatment liquid is 0.5 mg / L to the saturation concentration of the palladium complex, preferably 1 mg / L to 1000 mg / L in terms of me...

Embodiment 1

[0049] In the analysis results of FT-IR, it was observed on the surface of the ABS resin molded body treated with a surface modifying liquid containing permanganic acid, phosphoric acid and nitric acid that the 3340cm -1 Nearby peak from hydroxyl, at 1715cm -1 Nearby peak from carbonyl, at 1625cm -1 Nearby peaks originate from carboxyl groups. This result shows that the surface modifying solution strongly modifies the surface of the resin substrate by chemical oxidation. On the other hand, the peaks of these functional groups do not appear on the surface of ABS resin moldings treated with chromic acid / sulfuric acid etching solution and with permanganic acid, phosphoric acid and sulfuric acid etching solution, so it can be confirmed that the improvement of the resin with etching solution The sexual effect is small.

manufacture example 1

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Abstract

A surface modification liquid for plastic that in pretreatment for metallization of a plastic surface by metal plating, solves the problems of etching treatment with the use of conventional etchant containing chromic acid, etc. There is provided a surface modification liquid for plastic characterized by containing permanganic acid, phosphoric acid and nitric acid.

Description

technical field [0001] The present invention relates to a plastic surface modifying solution, and more specifically, to a plastic surface modifying solution for metallizing a plastic surface and a method for metallizing a plastic surface using the same. Background technique [0002] In the past, when metallizing plastic moldings such as acrylonitrile-butadiene-styrene (ABS) resin or polycarbonate-acrylonitrile-butadiene-styrene (PC / ABS) by plating, in order to A known method of improving the bonding between the plastic molded body and the plating film is to perform an etching treatment for roughening the plastic molded body with a mixed solution of chromic acid and sulfuric acid before the plating treatment. In addition, electroless plating, direct plating using palladium / tin mixed colloid, or direct plating using metal sulfide is known as a conductive treatment on the plastic surface after the etching treatment. [0003] However, since the above-mentioned etching treatment...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C18/24C08J7/14C25D5/00C25D5/56
CPCC23C18/2006C23C18/24C08J7/14C25D5/56C23C18/208C23C18/30
Inventor 清水悟
Owner EBARA-UDYLITE CO LTD
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