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Characterization of TiO2/Polyurethane Composite Coatings

Ridge, Thomas Joseph, II
http://orcid.org/0000-0001-5056-3002
http://rave.ohiolink.edu/etdc/view?acc_num=miami1650470214460894

Abstract Details

2022, Master of Science, Miami University, Chemical, Paper and Biomedical Engineering.
Polyurethane coatings are widely used to prevent corrosion. TiO2/Polyurethane composite coatings with 1 – 5 wt% TiO2 compositions were produced, and the barrier properties were assessed. Techniques including the accelerated cyclic electrochemical technique (ACET), water contact angle measurements, scanning electron microscopy (SEM), and pull-off adhesion testing were employed to characterize the coating barrier properties. The results showed that the addition of TiO2 to polyurethane coatings in the amount of 1 – 3 wt% improved barrier properties - corrosion resistance, water contact angle, and pull-off adhesion - compared to polyurethane alone. Of these composites, the 3 wt% was the optimal TiO2 composite to achieve the best barrier properties. Conversely, the 4 wt% and 5 wt% composites were found to provide minimal improvement in water contact angle and pull-off adhesion as well as reduced performance in corrosion resistance compared to polyurethane alone. The reduced performance of the 4 wt% and 5 wt% composite coatings was attributed to coating cracking and particle agglomeration caused by the overabundance of TiO2 within the coating.
Lei Kerr (Advisor)
Shashi Lalvani (Advisor)
Giancarlo Corti (Committee Member)
38 p.
Chemical Engineering; Engineering; Materials Science
Corrosion, EIS, Polyurethane, ACET, Titania, Composite coating

Recommended Citations

Citations

  • Ridge, II, T. J. (2022). Characterization of TiO2/Polyurethane Composite Coatings [Master's thesis, Miami University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=miami1650470214460894

    APA Style (7th edition)

  • Ridge, II, Thomas. Characterization of TiO2/Polyurethane Composite Coatings. 2022. Miami University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=miami1650470214460894.

    MLA Style (8th edition)

  • Ridge, II, Thomas. "Characterization of TiO2/Polyurethane Composite Coatings." Master's thesis, Miami University, 2022. http://rave.ohiolink.edu/etdc/view?acc_num=miami1650470214460894

    Chicago Manual of Style (17th edition)

miami1650470214460894
232
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This open access ETD is published by Miami University and OhioLINK.