Major

Corrosion Engineering

Degree Name

Bachelor of Science

Date of Graduation

Spring 2017

Abstract

It is important to understand the role of salt in the coating failure because it may influence the coating degradation mechanism that is related to coating performance. This project will study the role of salt on two types of organic coatings under two different immersion environment. The environment selected was 3.5% by weight sodium chloride solution and deionized (DI) water. The two coatings were Neorez 1080 (a waterborne polyurethane) and Joncryl 587-AC (a solvent borne polyurethane). Each coating was tested in each environment using electrochemical impedance spectroscopy (EIS) measurement which presented a total of four data sets. The equivalent circuit modeling was used to fit the EIS data in order to study the physical behavior of the coating. The conclusion is that a sodium chloride solution will cause rapid coating failure compared to DI water for the two types of coatings evaluated in this project.

Research Sponsor

Dr. Zhou

First Reader

Dr. Cong

Second Reader

Dr. Gupta

Share

COinS
 
 

To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.