Kinetics of Isothermal Degradation Studies in Adhesives by Thermogra vimetric Data: Effect of Hydrophilic Nanosilica Fillers on the Thermal Properties of Thermoplastic Polyurethane-Silica Nanocomposites

 

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Detalles Bibliográficos
Autores: Jose-Roberto, Vega-Baudrit, Sibaja-Ballestero, Maria, Vázquez, Patricia, Nuñez, Santiago, Martín-Martínez, Jose M., Benavides-Rodríguez, Luis
Formato: artículo
Fecha de Publicación:2008
Descripción:The kinetics of thermal degradation process on thermoplastic polyurethanes (TPUs) adhesives with hydrophilic nanosilicas was studied using isothermal thermogravimetric analysis within the temperature range from 360 °C to 460 °C in nitrogen. The effect of nanosilicas with different hydrophilic degree in the thermoplastic polyurethanes was investigated. It was found that the thermoxidative degradation of polyurethane-silica nanocomposites takes place in one step. An analysis of the isothermal methods to evaluate kinetic parameters of decomposition of solids from isothermal thermogravimetric data is presented. Patents WO07146353A2 and US20070292623A1 have some relevant information about the topic develop in this study, because the principle in both cases relies on the interactions between reactive groups in the polymer (TPUs) and the silanol in the silica nano-particles.
País:Repositorio UNA
Institución:Universidad Nacional de Costa Rica
Repositorio:Repositorio UNA
Lenguaje:Inglés
OAI Identifier:oai:null:11056/23846
Acceso en línea:http://hdl.handle.net/11056/23846
https://doi.org/10.2174/187221008786369679
Palabra clave:NANOTECNOLOGÍA
POLIURETANO
ADHESIVOS
ADHESIVES
CINÉTICA
KINETIC
QUÍMICA
CINETOQUIMICA
POLYURETHANE