|
|||||
|
|
Zinc-free varnishes and zinc-rich paints modified with ionic liquids |
|
| Affiliation: | 1. Semiconductor Lab at Lakehead University, P7B 5E1 Thunder Bay, ON, Canada;2. MEAglow Inc., 1308 Picard Ave., Thunder Bay P7G 1A7, ON, Canada;1. Department of Materials Science, Mangalore University, Mangalagangothri 574199, India;2. Department of Physics, P.A. College of Engineering, Mangalore 574199, India;3. IITB-Monash Research Academy, Academy Building, IIT Bombay, Powai, Mumbai 400 076, India;1. Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi’an 710021, China;2. Department of Material Science and Engineering, Northwestern University, Evanston, IL 60208, USA;3. Intelligent Polymer Research Institute, ARC Centre of Excellence for Electromaterials Science, AIIM Facility, University of Wollongong, NSW 2500, Australia |
| Abstract: | The corrosion protection of a steel substrate using zinc-rich epoxy–alkyd paints (ZRPs) modified with either 1-hexyl-3-methylimidazolium hexafluorophosphate (HMIMPF6) or 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide (BMPyrrTFSI) has been investigated. Additionally, the influence of ionic liquids (ILs) on the corrosion process of uncoated steel and zinc as well as on electrical features of zinc-free varnishes has been evaluated. The pyrrolidinium IL significantly reduces the corrosion rates of steel and zinc but the ZRPs with HMIMPF6 offer better cathodic protection of steel than unmodified ZRP and ZRPs with BMPyrrTFSI. The electrical conductivity of IL is not critical for the protective features of ZRP. |
| Keywords: | A Organic coatings A Zinc B EIS C Paint coatings C Anodic films C Cathodic protection |
| 本文献已被 ScienceDirect 等数据库收录！ | |