Enhancement of Surface Coating Characteristics of Epoxy Resin by Dextran: An Electrochemical Approach
| Autor: | Arunchandran Chenan, B. Ponnappa Charitha, Padmalatha Rao |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Scanning electron microscope 020209 energy General Chemical Engineering 02 engineering and technology engineering.material Industrial and Manufacturing Engineering Corrosion chemistry.chemical_compound Coating Polymer chemistry 0202 electrical engineering electronic engineering information engineering Composite material chemistry.chemical_classification General Chemistry Polymer Epoxy 021001 nanoscience & nanotechnology Dielectric spectroscopy Surface coating Dextran chemistry visual_art engineering visual_art.visual_art_medium 0210 nano-technology |
| Zdroj: | Industrial & Engineering Chemistry Research. 56:1137-1147 |
| ISSN: | 1520-5045 0888-5885 |
| Popis: | This work describes the use of polymer dextran to enhance the corrosion protection of epoxy coating applied on 6061 Al-15%(v) SiC(p) composite material (Al-CM). Initially, conditions were established to obtain optimum inhibition efficiency of dextran. Electrochemical techniques such as potentiodynamic polarization and electrochemical impedance spectroscopy were adopted for the corrosion rate measurements. Later, the same techniques were employed to study the corrosion rate of the epoxy resin coated composite material (EC-CM) before and after the addition of environmentally benign dextran polymer. Detailed investigation of the surface morphology of the coated Al-CM was carried out using scanning electron microscopy, energy dispersion X-ray analysis, and atomic force microscopy techniques. The work which is done with dual purpose, establishes not only the anticorrosive property of dextran, but also proves its ability to improve the coating characteristics of epoxy resin on Al-CM. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|