Producción de estructuras porosas de titania por Ice - Templating

This research had as a main point, the design and implementation of the process to produce porous structure of Titania (TiO2), with a similar density of a human bone through Ice Templating technique. The investigation was developed because of the necessity to obtain ceramic porous materials for impl...

Full description

Autores:
Barrera Carreño, Juan Ernesto
Tipo de recurso:
Trabajo de grado de pregrado
Fecha de publicación:
2017
Institución:
Universidad de los Andes
Repositorio:
Séneca: repositorio Uniandes
Idioma:
spa
OAI Identifier:
oai:repositorio.uniandes.edu.co:1992/61827
Acceso en línea:
http://hdl.handle.net/1992/61827
Palabra clave:
Dióxido de titanio
Implantes artificiales
Prótesis
Rights
openAccess
License
https://repositorio.uniandes.edu.co/static/pdf/aceptacion_uso_es.pdf
Description
Summary:This research had as a main point, the design and implementation of the process to produce porous structure of Titania (TiO2), with a similar density of a human bone through Ice Templating technique. The investigation was developed because of the necessity to obtain ceramic porous materials for implants and prosthesis. These ones can be obtained by the Ice templating technique, this method consists in replicate the ice structure, of Lamellar morphology, these structures move the base material and at the moment of removing the ice, the porous will stay with lamellar shape. For this investigation, the process started with a suspension of deionized water, polyvinyl alcohol, dispersant of ammonium polyacrylate and Titania (TiO2); this suspension was mixed until it became(stable and dispersed), after it was solidified (frozen), then the ice was removed by sublimation, once it was removed, the obtained structure was porous but too fragile, because of this it was...