Corrosion protection studies of crude glycerol-basedwaterborne polyurethane coating on steel substrate

Yuehlien Lee, Xiaolan Luo, Shengjun Hu, Yebo Li, Rudolph Buchheit

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

Crude glycerol, a low-value by-product from the biodiesel industry, has a significantly different composition compared to pure glycerol. Generally, crude glycerol contains various impurities, such as methanol, water, soap, free fatty acids, fatty acid methyl esters, and glycerides. In this study, waterborne polyurethane (WPU) coatings were prepared from crude glycerol-based polyols synthesized via a one-pot thermochemical conversion of crude glycerol. The corrosion properties of the coatings were characterized by electrochemical impedance spectroscopy, polarization measurements, and salt spray testing. The preliminary results showed that crude glycerol-based WPU coatings had a considerably enhanced corrosion resistant performance on metallic substrates.

Original languageEnglish
Pages (from-to)C54-C61
JournalJournal of the Electrochemical Society
Volume163
Issue number3
DOIs
StatePublished - 2016

Bibliographical note

Publisher Copyright:
©2015 The Electrochemical Society.

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films
  • Electrochemistry
  • Materials Chemistry

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