Term of Award

Fall 2024

Degree Name

Master of Science, Mechanical Engineering

Document Type and Release Option

Thesis (restricted to Georgia Southern)

Copyright Statement / License for Reuse

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.

Department

Department of Mechanical Engineering

Committee Chair

Mohammadamin Ezazi

Committee Member 1

Sevki Cesmeci

Committee Member 2

Hossain Ahmed

Abstract

Liquid-repellent coatings play pivotal role in extending the lifespan of materials and enhancing their functionality by forming a protective barrier that effectively repels liquids, such as water and organic compounds. However, conventional liquid-repellent coatings, such as superhydrophobic coatings are typically limited by poor mechanical durability, leading to a short lifespan under extreme conditions, and the reliance on toxic materials and complex multi-step synthesis methods. To partly address these challenges, novel coatings with environmentally acceptable formulations have been developed using a visible-light curable one-step synthesis process. The developed coatings exhibit superior durability, resistance to thermal degradation, enhanced substrate adhesion, and minimal water sorption. A wide range of characterization techniques were employed, including Fourier-transform infrared (FT-IR) spectroscopy, surface roughness measurements, contact angle goniometry, adhesion strength testing, heat resistance assessment, and water sorption tests, to evaluate the performance of the coatings. Results show that the coatings can demonstrate a contact angle hysteresis as low as 2.7°, adhesion strength of up to 3.21 MPa, and high resistance to elevated temperatures and water sorption. The superior properties of these novel coatings, combined with the environmentally acceptable formulation, simple synthesis, and versatile functionality, make them promising candidates for expanding the application of liquid-repellent coatings across various industries, including automotive, aerospace, optics, and consumer products.

OCLC Number

1478263149

Research Data and Supplementary Material

No

Download

Share

COinS