METHOD FOR TREATING PLASTIC SURFACE

A treatment device 1 has a treatment tank 2 on the outside of which a constant temperature heater 3 is provided and a supply tank 6 connected via a pipe 4 and a pump 5. Persulfuric acid salt solutions S and S1 of prescribed sulfuric acid concentrations and persulfuric acid concentrations are respect...

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Bibliographische Detailangaben
Hauptverfasser:	NAGAI Tatsuo, YAMAMOTO Yuzuki
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADHESIVES CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL DYES INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS POLISHES SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
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Beschreibung
Zusammenfassung:	A treatment device 1 has a treatment tank 2 on the outside of which a constant temperature heater 3 is provided and a supply tank 6 connected via a pipe 4 and a pump 5. Persulfuric acid salt solutions S and S1 of prescribed sulfuric acid concentrations and persulfuric acid concentrations are respectively filled in the treatment tank 2 and the supply tank 6. In the treatment tank 2, a plastic sheet 7 is suspended vertically as plastic to be treated. The sulfuric acid concentrations of the persulfuric acid salt solutions S and S1 are 50-92 wt%. The persulfuric acid concentrations of the solutions S and S1 after dissolving the persulfuric acid salt are 3-20 g/L. With the method for treating a Cr-free plastic surface that uses said treatment device 1, it is possible to form metal plating that adheres well to the plastic surface.