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Interactions in Nanosilica-Polyurethane Composites Evidenced by Plate-Plate Rheology and DMTA |
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| Authors: | Virtudes Navarro-Bañón José Vega-Baudrit Patricia Vázquez José Miguel Martín-Martínez |
| Institution: | 1. Adhesion and Adhesives Laboratory, Department of Inorganic Chemistry, University of Alicante, 03080 Alicante, Spain;2. Laboratorio de Polímeros – POLIUNA, Universidad Nacional, Apartado 86-3000, Heredia, Costa Rica;3. Centro de Investigación y Desarrollo en Ciencias Aplicadas -CINDECA, CONICET-UNLP, 47 n 257 (B1900AJK) La Plata, Buenos Aires, Argentina |
| Abstract: | Fumed nanosilicas with different degree of silanization were used to obtain nanosilica-polyurethane (TPU) composites to modify their rheological and mechanical properties. The higher the silanol content of the nanosilica, the higher the storage modulus and the thermal stability of the silica-TPU composite. DMTA experiments confirmed that the TPU-silica interactions increased by increasing the silanol content of the nanosilica. |
| Keywords: | adhesion adhesive nanosilica polyurethane rheology |