Date of Award
8-1-2018
Document Type
Masters Thesis
Degree Name
M.S.
Organizational Unit
Daniel Felix Ritchie School of Engineering and Computer Science, Mechanical and Materials Engineering
First Advisor
Maciej Kumosa, Ph.D.
Second Advisor
Susan Sadler, Ph.D.
Third Advisor
Matt Gordon
Keywords
Accelerated aging, Icephobic, Ice shedding, Polydimethylsiloxane
Abstract
The goal of this study was to evaluate and optimize the ice adhesion test initially developed by the University of Denver and to examine Polydimethylsiloxane (PDMS) based silicone rubbers for their ice-phobicity as a function of their physical and chemistry properties, and under severe oxidative aging. The test is based on an ice block bonded to a silicone rubber substrate and subjected to shear. In its original state, the test had severe limitations that caused the ice to be dislodged through a mixture of shear and peeling. Several steps were taken in this research to improve the test, and the work was successfully supported by finite element numerical simulations. Testing PDMS rubber substrates of various crosslink densities revealed that their ice adhesion strengths decreased as the crosslinking was reduced. It was shown for the first time that aging in hypochlorous acid greatly affected ice-phobicity of the rubbers.
Publication Statement
Copyright is held by the author. User is responsible for all copyright compliance.
Rights Holder
Theodore R. Woll
Provenance
Received from ProQuest
File Format
application/pdf
Language
en
File Size
79 p.
Recommended Citation
Woll, Theodore R., "Ice Adhesion Analysis of Severely Aged PDMS Rubbers" (2018). Electronic Theses and Dissertations. 1504.
https://digitalcommons.du.edu/etd/1504
Copyright date
2018
Discipline
Materials Science