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Chemical Engineering: Recent submissions
Now showing items 221-240 of 994
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Investigation of Thermo-mechanical Degradation of Polypropylene-Low Density Polyethylene Blends Exposed to Simulated Recycling
(University of Waterloo, 2020-08-26)Polypropylene (PP) and low-density polyethylene (LDPE) are among the most extensively used resins used mainly in the packaging and automotive sectors and are the largest contributor to municipal waste. Plastic waste ... -
On the Techniques for Efficient Sampling, Uncertainty Quantification and Robust Control of Stochastic Multiscale Systems
(University of Waterloo, 2020-08-25)In order to better understand and leverage natural phenomena to design materials and devices (e.g. biomedical coatings, catalytic reactors, thin conductive films for microprocessors, etc.), stochastic multiscale models ... -
Rational Structure Design of Transition Metal Chalcogenide Multifunctional Sulfur Immobilizer for Fast and Durable Li-S Performance
(University of Waterloo, 2020-08-12)Lithium-sulfur (Li-S) batteries are one of the most promising candidates for next-generation energy storage owing to their high energy density, environmental benignity and cost effectiveness. However, the practical application ... -
Evaluation of antimicrobial coatings in wet conditions and development of sulphonated poly (ether ether ketone) - copper composites for antimicrobial applications
(University of Waterloo, 2020-08-06)The existence of pathogenic bacteria and fungi on surfaces can be a serious threat to health causing numerous infections. With microorganisms developing antimicrobial resistance over the years, there is an increasing need ... -
Sulfur-based cathodes operated at strict cycling conditions for Li-based batteries
(University of Waterloo, 2020-08-05)With widespread investments from the transportation sectors, the electrification of a significant portion of the transportation market appears to be on the horizon. However, the range and price of these vehicles remains a ... -
An Analytical Solution to Transient Composite Domain Diffusion and its Potential Applications
(University of Waterloo, 2020-07-27)The work developed here was initially made to provide a comprehensive model for the modified Loschmidt cell, but the project evolved to derive a more robust transient composite domain diffusion (TCDD) model. The original ... -
Heuristic Search Strategy for Transforming Microstructural Patterns to Optimal Copolymerization Recipes
(Wiley, 2018-03-12)Manipulation and optimization of copolymer microstructure for tailoring final properties is of great importance in macromolecular science and engineering. Uncovering the complexities of the interrelationships between ... -
Straw Pressboard Composites
(University of Waterloo, 2020-06-15)To fully explore the potential of wheat straw and expand its use in composite applications, this thesis aimed to develop a feasible and effective manufacturing method for wheat straw based polymer pressboard composites. ... -
Characterization and Improvement of Oxygen Mass Transfer in a Rocking Disposable Bioreactor
(University of Waterloo, 2020-06-04)Rocking disposable bioreactors use a cyclic rocking motion to induce mixing and oxygen transfer from the headspace gas into the liquid and are a novel type of bioreactor currently suitable for smaller-scale cell growth. ... -
Data Driven Modelling and Optimization of MEA Absorption Process for CO2 Capture
(University of Waterloo, 2020-05-27)Global warming is a rising issue and there are many research studies aiming to reduce greenhouse gas emissions. Carbon capture and storage technologies improved throughout the years to contribute as a solution to this ... -
In vitro model for Fuchs Endothelial Dystrophy and its effects on corneal endothelial cells
(University of Waterloo, 2020-05-22)Fuchs endothelial dystrophy (FED), a corneal endothelium disease, is one of the leading causes for corneal transplantation. During disease progression, Descemet membrane’s (DM), the corneal endothelial basement membrane, ... -
Solar light active silver/iron oxide/zinc oxide heterostructure for photodegradation of ciprofloxacin, transformation products and antibacterial activity
(Elsevier, 2019-12-01)This paper reports on the multitasking potential of a silver/iron oxide/zinc oxide (Ag/Fe2O3/ZnO) heterostructure, which was used for the photocatalytic decomposition of ciprofloxacin (CPX) and bacterial disinfection. The ... -
Mucoadhesive Nanocomposite Derived from Cellulose Nanocrystal and Chitosan for the Delivery of Hydrophobic Compounds
(University of Waterloo, 2020-05-19)The sea lice are a major ectoparasite of salmon aquaculture that anchor to host fish’s mucus membrane, epidermis, and vascular system, thereby compromising the fish immunity. The surging amount of sea lice has caused ... -
Understanding the Sf9 – Baculovirus Expression Vector System: Exploring the Metabolic Basis of the Cell Density Effect through Nuclear Magnetic Resonance Spectroscopy and Flow Cytometry Analysis of Fluorescent Protein Accumulation
(University of Waterloo, 2020-05-15)It is well established that the baculovirus expression vector system (BEVS) can serve as an important, effective production system for various biologicals. Knowing that the cells can serve as a production platform is ... -
Nanostructured catalyst design to improve ultrafine Pt nanoparticle utilization and stability for PEMFCs
(University of Waterloo, 2020-05-15)Polymer electrolyte membrane fuel cells (PEMFCs) is an electrochemical device which efficiently converts chemical energy stored in hydrogen and oxygen into electricity and water. Widely regarded as promising alternative ... -
Water Based Polyurethane Multi-Functional Composites
(University of Waterloo, 2020-05-13)Polyurethanes (PUs) are a class of versatile polymers that exhibit various mechanical, physical, chemical and biological properties depending on their structure and morphology. Polyurethanes (PUs) have been employed in a ... -
Polypyrrole-Graphene based Flexible Supercapacitors
(University of Waterloo, 2020-05-13)The high interest in wearable technologies has inspired an increased demand for portable, flexible energy storage devices. Currently, most commercial electrochemical energy storage units, such as supercapacitors, are ... -
Utilization of Biorenewable Polymers for Functional Applications
(University of Waterloo, 2020-04-30)The need to transition to more sustainable and renewable technology has resulted in a focus on the two bio-renewable polymers, cellulose and lignin. Cellulose nanocrystals (CNCs) and lignin can be the materials of the ... -
Enhanced Cellulose Fiber for Polymer Composites
(University of Waterloo, 2020-04-29)In recent years, interest in renewable, environmentally friendly and low-cost materials has grown and has become a global trend. In view of the high consumption of petrochemical plastics that use reinforcing agents such ... -
Development of Electrodes and Coatings for Sodium Ion Energy Storage
(University of Waterloo, 2020-04-28)Sodium-ion energy storage technologies have recently garnered interest due to potential constraints in the supply of lithium in the distant future assuming that lithium-ion batteries (LIBs) are widely adopted for large-scale ...