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Analysis Of Bombyx Mori Silk And Polyimide Nanofibers, Sabrina Leseul
Analysis Of Bombyx Mori Silk And Polyimide Nanofibers, Sabrina Leseul
Department of Mechanical and Materials Engineering: Dissertations, Theses, and Student Research
This thesis presents a study on the properties of Bombyx Mori silk nanofibers and polyimide (PI) nanofibers. Firstly, a Bombyx Mori silk solution has been created with degummed silkworm cocoons in order to separate the fibroin and the sericin, the two main proteins of the silk. The fibroin was then centrifuged to remove insoluble particles and stored and 4°C before mixing with hexafluoroisopropanol (HFIP). On the second part, a polyimide solution, made with shavings of polyimide and N,N-dimethylformamide (DMF). Both solutions are then electrospun. Electrospinning parameters are studied. In this way, a part of my thesis has been dedicated to …
Thermal & Mechanical Analysis Of Bombyx Mori Silk Nanofibers, Justin Busnot
Thermal & Mechanical Analysis Of Bombyx Mori Silk Nanofibers, Justin Busnot
Department of Mechanical and Materials Engineering: Dissertations, Theses, and Student Research
This thesis presents a study on the thermomechanical properties of Bombyx Mori silk nanofibers. These nanofibers were obtained from silkworm cocoons which were degummed to separate the fibroin and the sericin, the two proteins that make up silk. The fibroin was then centrifuged to remove insoluble particles and stored and 4°C before the electrospinning process. A parametric study of the electrospinning process was carried out in order to identify the factors allowing to obtain optimal mechanical properties. The current as well as the flow rate applied, the diameter of the syringe, the distance separating the syringe from collector or even …
Pan Nanofibers And Nanofiber Reinforced Composites, Cheng Ren
Pan Nanofibers And Nanofiber Reinforced Composites, Cheng Ren
Department of Mechanical and Materials Engineering: Dissertations, Theses, and Student Research
Nanomaterials play an important role in the development of nanotechnology. They possess unique mechanical, physical, and chemical properties coupled with small size and ultrahigh surface area that can provide critical advantages for applications. Continuous nanofibers attract special interest due to their dual nano-macro nature and ability to bridge scales. Nanofibers are being considered for a broad range of applications spanning advanced filters, separation membranes, ultrasensitive sensors, micro/nano actuators, nanoprobes, tissue engineering scaffolds, protective and smart closing, and multifunctional composites. Most of these applications require certain mechanical properties and robustness. However, the literature on the mechanical behavior of nanofibers and their …