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Prevention of Cathodic Delamination of Polyurethane Adhesive from Ti-6Al-4V Alloy Using Fluorinated Primers

Gilpin, Andrew
http://rave.ohiolink.edu/etdc/view?acc_num=ucin1491558192907036

Abstract Details

2017, PhD, University of Cincinnati, Engineering and Applied Science: Materials Science.
The cathodic delamination of a polyurethane adhesive from grit-blasted Ti-6Al-4V alloy was inhibited by the application of primers to the titanium surface. The rate of cathodic delamination was determined by measuring the decrease in the fracture toughness of double cantilever beam test specimens after exposure to an accelerated cathodic delamination environment. X-ray photoelectron spectroscopy and attenuated total reflection Fourier transform infrared spectroscopy showed that the mode of failure of the double cantilever beam test specimens that had been exposed to a cathodic delamination environment was mostly interfacial between the metal oxide surface and its adherend. The best performing primer was a fluorosiloxane film deposited from an aqueous alcohol solution containing heptadecafluoro-1,1,2,2-tetrahydrodecyl)trimethoxysilane. The best performing primer decreased the rate of cathodic delamination by at least a factor of 50 compared to a primerless control. Decreasing the hydrophobicity of the fluorosiloxane primer increased the rate of cathodic delamination. Therefore this work concludes that the primers inhibited the cathodic delamination process by excluding water from the primer/metal oxide interface.
F James Boerio, Ph.D. (Committee Chair)
Jude Iroh, Ph.D. (Committee Member)
Rodney Roseman, Ph.D. (Committee Member)
Vesselin Shanov, Ph.D. (Committee Member)
226 p.
Materials Science
cathodic delamination; polyurethane; titanium; adhesion; fluorosiloxane; double cantilever beam

Recommended Citations

Citations

  • Gilpin, A. (2017). Prevention of Cathodic Delamination of Polyurethane Adhesive from Ti-6Al-4V Alloy Using Fluorinated Primers [Doctoral dissertation, University of Cincinnati]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1491558192907036

    APA Style (7th edition)

  • Gilpin, Andrew. Prevention of Cathodic Delamination of Polyurethane Adhesive from Ti-6Al-4V Alloy Using Fluorinated Primers. 2017. University of Cincinnati, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ucin1491558192907036.

    MLA Style (8th edition)

  • Gilpin, Andrew. "Prevention of Cathodic Delamination of Polyurethane Adhesive from Ti-6Al-4V Alloy Using Fluorinated Primers." Doctoral dissertation, University of Cincinnati, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1491558192907036

    Chicago Manual of Style (17th edition)

ucin1491558192907036
153
© 2017, all rights reserved.
This open access ETD is published by University of Cincinnati and OhioLINK.