Corrosion Engineering - Cooperative Education
Bachelor of Science
Date of Graduation
The purpose of this project was to determine the suitability of cardanol glycidyl ether (CGE) as a substitute for trimethylolpropane triglycidyl ether (TMPGE) as the reactive diluent in epoxy coatings. CGE may be a naturally-derived alternative to TMPGE, which is a commonly-used petroleum-derived reactive diluent. Epoxy coatings were formulated with CGE replacing increasing amounts of TMPGE in the formulation. Corrosion protection provided by the coatings was evaluated with electrochemical impedance spectroscopy (EIS). Mechanical properties of the coatings (hardness, flexibility, adhesion, and impact resistance) were evaluated with applicable ASTM standards.
EIS results revealed the coating formulated with only CGE had superior corrosion protection when compared to the control formulated with only TMPGE. The control exhibited greater hardness when compared to the coating formulated with only CGE. No measurable differences could be determined within the scopes of the flexibility, adhesion, and impact resistance tests. The results suggest that CGE may be a suitable substitute for TMPGE in epoxy coatings, especially if very good corrosion protection is desired.
Dr. Qixin Zhou
Dr. Rajeev Gupta
Dr. David Bastidas
Pottschmidt, Nicholas, "Development of Cardanol-based Epoxy Coating" (2019). Williams Honors College, Honors Research Projects. 899.