Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"Dispersion and distribution"”.
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Novel Functional Polymeric Nanomaterials for Energy Harvesting Applications
Polymer-based piezoelectric and triboelectric generators form the basis of well-known energy harvesting methods that are capable of transforming ambient vibrational energy into electrical energy via electrical polarization changes in a material and contact electrification, respectively. However, …
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Characterization of dispersive and distributive mixing in a co-rotating twin-screw compounding extruder
… techniques for characterization of dispersive and distributive mixing in thermoplastics materials prepared by extrusion compounding. Image analysis procedures were used to quantify mixing of polypropylene composites containing calcium carbonate filler using reflected light microscopy on …
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Fibre Length Distribution and Dispersion during the Injection Moulding Process: An experimental study evaluating fibre length attrition and dispersion during processing of long glass fibre reinforced polymer composites in injection moulding including an evaluation of long glass fibre measurement techniques
This project evaluates fibre length dispersion and distribution within the injection moulding process of long glass fibre reinforced polypropylene, sponsored by Autodesk Simulation. The primary material used in this investigation was a 15 mm long glass fibre reinforced polypropylene consisting of …
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Polylactic Acid based Blends and Composites for Material Extrusion 3D Printing: Formulation, Characterization, and Processing
… adipate-co-terephthalate) (PLA/PBAT) blends and their composites containing cellulose nanocrystals (CNCs), suitable for material extrusion 3D printing. In the first part, epoxidized canola oil (ECO), was utilized as a compatibilizer for PLA/PBAT blends at different weight ratios to produce …
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The oligomerisation of propene over nickel oxide silica alumina
… catalyst. The propene oligomerisation activity and the selectivity of the catalysts prepared by homogeneous decomposition deposition (HDD) were investigated and compared with nickel oxide silica alumina catalysts prepared by the techniQues of impregnation (IMP) and co-precipitation (SG). Amongst …
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Modeling of Solid Particle Transport in Fractures and Its Applications to Proppant Placement During Hydraulic Fracturing Operations
… approaches to sustain the increasing global oil and gas consumption while lowering the operational costs. In recent decades, nanoparticles (NPs) have seen their promising potentials in recovering hydrocarbons from numerous laboratory experiments and field pilots. Also, hydraulic fracturing …
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Multimodal Polyethylene-Graphene Nanocomposite via Melt Extrusion
… paired with coordinating extruder conditions and blending techniques. This enabled the polymer to sufficiently degrade, predominantly through thermo-mechanical degradation, as well as thermo-oxidative degradation, which subsequently created a suitable medium for the graphene sheets to disperse …