Needleless electrospun polyacrylonitrile nanofiber mats - preparation, stabilization, carbonization and composite formation
- Autores: Lilia Sabantina
- Directores de la Tesis: Tomás Cordero Alcántara (dir. tes.), José Rodríguez Mirasol (codir. tes.)
- Lectura: En la Universidad de Málaga ( España ) en 2018
- Idioma: español
- Tribunal Calificador de la Tesis: Juan José Rodríguez Jiménez (presid.), Juana M. Rosas Martínez (secret.), Diego Cazorla Amorós (voc.)
- Programa de doctorado: Programa de Doctorado en Química y Tecnologías Químicas. Materiales y Nanotecnología por la Universidad de Málaga
- Materias:
- Enlaces
- Tesis en acceso abierto en: RIUMA
- Resumen
This dissertation deals with NEEDLELESS ELECTROSPUN POLYACRYLONITRILE NANOFIBER MATS - PREPARATION, STABILIZATION, CARBONIZATION AND COMPOSITE FORMATION and consists of a total of nine thematic chapters.
At the beginning of the work, the first chapter gives an overview of the research as well as short descriptions of important research results. In addition, theoretical frameworks of the work are presented and the state of the art is examined, with a focus on electrospinning technology and the influences of parameters in the electrospinning process. Subsequently, the oxidation and stabilization processes of nanofiber mats are presented.
The second chapter focuses on the methodology of the investigations and describes materials, devices and research methods used in this work. This chapter begins with an overview of the materials used. Then, the structure and principle of the needleless electrospinning machine is vividly illustrated. In addition, special attention is paid to the sample preparation and also to the fixing methods of nanofiber mats during the stabilization process. Several attempts to fix nanofibers during the stabilization process are illustrated and explained in more detail. In addition, experimental framework conditions for stabilization and carbonization parameters are presented and clearly described. This chapter concludes with various materials characterization methods that will be used during the research work in this dissertation.
The research results can be found in chapters three to eight, where they are presented as a compendium of publications. In total, these chapters are based on six publications that have already been published, accepted or submitted. The publications have been structured thematically, starting with basics such as the investigation of optimal electrospinning parameters for nanofiber mats. Subsequently, more complex topics such as the formation of composites such as the mixing of PAN with gelatin and experimental investigations of metal-carbon composites are carried out.
