An Environmentally Friendly Electroless Nickel Precipitation Solution for Metallization and Modification of Plastic Surfaces

Abstract

The invention relates to environment-friendly chemical nickel deposition solution for metalizing modification of a plastic surface. The chemical nickel deposition solution comprises nickel salt, sodium hypophosphite, complexing agent, pH conditioning agent, isothiazolone or isothiazolone derivatives; the usage amount of the nickel salt in the chemical nickel deposition solution is 1-50g / l, the usage amount of the sodium hypophosphite in the chemical nickel deposition solution is 0.5-50g / l, the usage amount of the complexing agent in the chemical nickel deposition solution is 3-100g / l, the usage amount of the isothiazolone or isothiazolone derivatives in the chemical nickel deposition solution is 0.5-300ppm. The isothiazolone or isothiazolone derivatives added in the chemical nickel deposition solution not only can be used as antimicrobial agent in the chemical nickel deposition solution, but also can be used as an environment-friendly stabilizer instead of heavy metal ions, so that the chemical nickel deposition solution has the characteristics of antimicrobial property, environment friendliness, high stability and the like.

Description

Technical field [0001] The invention relates to a chemical nickel precipitation solution, in particular to an environmentally-friendly chemical nickel precipitation solution for metallization modification of plastic surfaces. Background technique [0002] The plastic surface is mainly used for surface treatment such as electroplating after being modified by metallization. After modification, the plastic surface has metal characteristics and can play a good conductive role. [0003] Commonly used methods for metallization modification of plastic surface include: chemical treatment, vacuum plating, spraying, and mixing metal powder or metal salt in the material. The metal film coating layer obtained by vacuum plating and spraying is extremely thin, and the conductivity, shielding performance and wear resistance are poor; the method of adding metal powder or metal salt to the polymer material is troublesome to operate, high cost, poor decorative performance, and very few applications ...

AI Technical Summary

Problems solved by technology

Such substances are rich in nitrogen, phosphorus, organic matter, etc. For bacteria, such substances are equivalent to a rich meal of nutrients they need. At the same time, this type of chemical nickel deposition process provides a suitable temperature and pH value range, so this kind of chemical nickel precipitation solution is easy to breed bacteria and appear corruption during use, which directly reflects that the solution is dirty and the filter is not clean. Phenomenon

[0006] Electroless nickel belongs to the self-catalysis system, which is particularly sensitive to metal palladium and is easy to self-decompose. At present, the relatively mature process of plastic surface metallization uses metal palladium as the catalyst, which has high requirements on the process stability of chemical nickel deposition. Inadvertently causing the solution to decompose, so a chemical nickel stabilizer must be added during use

Today's conventional chemical nickel stabilizers all use high-polluting heavy metals such as lead, cadmium, mercury, and thallium, which do not meet the environmental protection requirements of today's society.

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