Adhesion of Thermoplastic Polymers: Influence of Nanoparticles

 

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Detalles Bibliográficos
Autores: Jose-Roberto, Vega-Baudrit, Sibaja Ballestero, María, Martín Martínez, José Miguel
Formato: ponencia
Fecha de Publicación:2010
Descripción:Thermoplastic polyurethanes (TPUs) are multi-phase segmented polymers that exhibit a two-phase microstructure (phase separation), which arises from the incompatibility between the soft and the hard segments. The hard rigid segment segregates into a glassy or semicrystalline domain, and the polyol soft segments form amorphous or rubbery matrices in which the hard segments are dispersed [1]. Fumed silicas (nanosilicas) are fillers commonly added to improve the thermal, rheological and mechanical properties of TPU´s [2–7]. This improvement in properties has been previously ascribed to the creation of hydrogen bonds between the hydroxyl groups on the nanosilica surface and the soft segments of the polyurethane, favoring the degree of phase separation [8–11]. Previous experimental evidence [12, 16-20] has corroborated the formation of hydrogen bonds between the nanosilica and the polyurethane.
País:Repositorio UNA
Institución:Universidad Nacional de Costa Rica
Repositorio:Repositorio UNA
Lenguaje:Inglés
OAI Identifier:oai:null:11056/28160
Acceso en línea:http://hdl.handle.net/11056/28160
Palabra clave:ADHESIÓN
TERMOPLÁSTICO
POLÍMEROS
INFLUENCIA
NANOPARTÍCULAS
ADHESION
THERMOPLASTIC
POLYMERS
NANOPARTICLES