Effect of CO2 on Anti-Corrosion Property of a Polyurea Coating Modified with Organosilicone
| Autor: | Qing Hao Shi, Bing Ying Wang, Bin Zhao |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Materials science
Scanning electron microscope Mechanical Engineering Adhesion Partial pressure engineering.material Condensed Matter Physics Dielectric spectroscopy Autoclave Corrosion chemistry.chemical_compound Coating chemistry Mechanics of Materials engineering General Materials Science Composite material Polyurea |
| Zdroj: | Materials Science Forum. 789:466-470 |
| ISSN: | 1662-9752 |
| DOI: | 10.4028/www.scientific.net/msf.789.466 |
| Popis: | The corrosion mechanism of organic silicon modified polyurea composite coating under different CO2 partial pressures was studied using high-temperature autoclave, combined with scanning electron microscopy (SEM), adhesion tests and electrochemical impedance spectroscopy (EIS) technology. The experimental results showed that: there was no corrosion product formed on the surface of coating sample after high-temperature high-pressure corrosion test, and with the increasing of CO2 partial pressure, the coating adhesion and impedance values decline increases. Moreover CO2 partial pressure increases accelerated the failure process of polyurea composite coating system. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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