| dc.contributor.author | Pandey, Ramsharan | |
| dc.description.abstract | The environmental issues stemming from the production and use of fossil-based and environmentally hazardous materials are of great concern. Therefore, environment-friendly materials need to be pursued which can either be achieved by improving the production and performance of conventional materials or by replacing conventional fossil-based materials with renewable environment-friendly materials.
The first part of this dissertation covered the synthesis and characterization of novel coatings for ice and biofouling release applications. Conventional systems for ice removal are time, energy, and chemical-intensive posing issues related to greenhouse gas emissions, soil and water contamination, and other environmental pollution. Similarly, conventional systems for preventing marine biofouling involve the use of biocide-containing coating which is detrimental to marine ecosystem. The goal here was to develop potentially environment-friendly ice and biofouling release coatings. To achieve this goal, a polyurea-siloxane base coating was synthesized and modified with silicone oils. The first set of coating formulations used different non-reactive silicone oils as additives while the second set of coating formulations grafted different carbinol functional polydimethylsiloxane into the base coating. These coatings were characterized for their surface properties and tested for ice adhesion, interfacial toughness, and a range of laboratory bioassays. They showed low ice adhesion strength and low interfacial toughness making them a promising candidate for ice-shedding applications.
The second part of this dissertation covered the use of sustainability assessment tools such as techno-economic analysis (TEA) and life cycle assessment (LCA) for different early-stage technologies. TEA and LCA were performed for scaled-up production of lignin-based foam from laboratory scale data to determine its selling price and environmental impacts. Factors contributing to higher cost and environmental impacts along with the potential advantage of lignin-based foam compared to conventional rigid polyurethane foams were discussed. Similarly, LCA was performed for salt hydrate cellulose nanocrystal composites for thermochemical energy storage applications and molten salt biomass torrefaction system to identify environmental impact hotspots from the processes and input raw materials. The results from the analyses suggested potential areas for improvement to reduce the environmental impacts of these new technologies.
Overall, this dissertation contributes to the advancement of eco-friendly and sustainable materials development. | en_US |
| dc.publisher | North Dakota State University | en_US |
| dc.rights | NDSU policy 190.6.2 | en_US |
| dc.title | Development of Novel Environment-Friendly Materials Using Experimental and Computational Methods | en_US |
| dc.type | Dissertation | en_US |
| dc.date.accessioned | 2024-08-12T19:12:50Z | |
| dc.date.available | 2024-08-12T19:12:50Z | |
| dc.date.issued | 2024 | |
| dc.identifier.uri | https://hdl.handle.net/10365/33995 | |
| dc.subject | Fouling release coatings | en_US |
| dc.subject | Ice shedding coatings | en_US |
| dc.subject | Lignin based foam | en_US |
| dc.subject | Molten salt torrefaction | en_US |
| dc.subject | Thermochemical energy storage systems | en_US |
| dc.rights.uri | https://www.ndsu.edu/fileadmin/policy/190.pdf | en_US |
| ndsu.degree | Doctor of Philosophy (PhD) | en_US |
| ndsu.department | Coatings and Polymeric Materials | en_US |
| ndsu.advisor | Webster, Dean | |
| ndsu.advisor | Gladen, Adam | |
