Adhesion of Thermoplastic Polymers: Influence of Nanoparticles
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| Авторы: | , , |
|---|---|
| Формат: | ponencia |
| Дата публикации: | 2010 |
| Описание: | 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. |
| Страна: | Repositorio UNA |
| Институт: | Universidad Nacional de Costa Rica |
| Repositorio: | Repositorio UNA |
| Язык: | Inglés |
| OAI Identifier: | oai:null:11056/28160 |
| Online-ссылка: | http://hdl.handle.net/11056/28160 |
| Ключевое слово: | ADHESIÓN TERMOPLÁSTICO POLÍMEROS INFLUENCIA NANOPARTÍCULAS ADHESION THERMOPLASTIC POLYMERS NANOPARTICLES |