COATING COMPOSITION AND PASSIVATED ZINC-PLATED MATERIAL

A coating composition is provided, the starting materials of which comprise nano SiO2, film-forming substance, film-forming aid, accelerator, acid, and water. The composition has pH of 3-9. A passivated zinc-plated material is also provided. The zinc-plated material comprises zinc-plated substrate a...

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Bibliographische Detailangaben
Hauptverfasser:	MEI, DONGSHENG, LI, GUO'AN, CHEN, YONG, XU, ZHEFENG, GUO, TAIXIONG, XU, QUAN, CHENG, XINGDE, ZHANG, AIPING
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ADHESIVES CHEMICAL PAINT OR INK REMOVERS 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 COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL CORRECTING FLUIDS DIFFUSION TREATMENT OF METALLIC MATERIAL DYES FILLING PASTES INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL INKS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	A coating composition is provided, the starting materials of which comprise nano SiO2, film-forming substance, film-forming aid, accelerator, acid, and water. The composition has pH of 3-9. A passivated zinc-plated material is also provided. The zinc-plated material comprises zinc-plated substrate and passivated coat adhered to the surface of the zinc-plated substrate, wherein the passivated coat is formed by curing the coating composition. The coating composition can impart to the zinc-plated material excellent corrosion resistance, water resistance, high temperature resistance, surface conductivity, and adhesion to the zinc-plated substrate. Additionally, the coating composition contains no Cr6+, and satisfies the requirement of EU RoHS Directive. L'invention concerne une composition de revêtement, dont les matériaux de départ comprennent un nano SiO2, une substance formant une couche mince, une aide à la formation de couche mince, un accélérateur, un acide et de l'eau. La composition comprend un pH de 3 à 9. L'invention concerne également un matériau zingué passivé. Ledit matériau comprend un substrat zingué et un revêtement passivé collé sur la surface du substrat zingué, le revêtement passivé étant formé par durcissement de la composition de revêtement. La composition de revêtement peut conférer à un matériau zingué une excellente résistance à la corrosion, une thermo-résistance élevée, une conductivité de surface, et une adhérence sur le substrat zingué. En outre, la composition de revêtement ne comprend pas de Cr6+, et répond aux exigences de la directive européenne RoHS.