Effect of pretreatments on electrodeposited epoxy coatings for electronic industries
| Autor: | Sundarajan Muthukrishnan, Muthaiah Selvaraj, Sironmani Palraj |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Thermogravimetric analysis
TGA Materials science Chromate conversion coating Anodizing Metallurgy Epoxy engineering.material A.C impedance anodized aluminium Corrosion Dielectric spectroscopy Coating visual_art Pickling engineering visual_art.visual_art_medium electrodeposition lcsh:TA401-492 lcsh:Materials of engineering and construction. Mechanics of materials Composite material chromating phosphating |
| Zdroj: | AIMS Materials Science, Vol 3, Iss 1, Pp 214-230 (2016) |
| ISSN: | 2372-0484 |
| Popis: | Waterborne epoxy coatings were prepared on aluminium (Al) surfaces by cathodic electro-deposition on the pretreated surface of pickling, phosphating, chromating and anodizing. The electro-deposition experiments were done at two different voltages, 15 V and 25 V at room temperature in 10% epoxy coating formulations. Corrosion and thermal behavior of these coatings were investigated using electrochemical impedance spectroscopy (EIS) and thermo gravimetric analysis (TGA). The coating exhibits better corrosion resistance in anodized Al surface than the other. But, TGA studies show that the thermal stability is higher in anodized and chromated Al surfaces. The surface morphology of these coatings were analyzed by SEM and AFM studies. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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