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TPU/Mica Composites Prepared in Torque Rheometer: Processability, Mechanical Properties and Morphology

Viviane A. Escocio1, Volker Altstadt2, Leila Visconte1, Mariana de Carvalho1 and Regina Nunes1
1Instituto de Macromoleéculas Professora Eloisa Mano, Universidade Federal do Rio de Janeiro, PO Box 68525, Centro de Tecnologia, Bloco J, Zip code: 21945-970 – Rio de Janeiro, RJ, Brazil; * 2Department of Polymer Engineering, University of Bayreuth, 30 Universitäatsstraße, 30 95447 Bayreuth, Germany
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This work is concerned with the preparation of thermoplastic polyurethane elastomer (TPU) composites with mica, and their characterization as for processability, mechanical and thermal properties and morphology behavior. The amount of added mica varied from 0 to 20 phr and the results showed few interactions between mica and the polymer matrix. Processability is facilitated by the increasing amount of mica but TPU upon strain crystallizability, as well as Tg, decrease with the increase in mica content. The main interest in using mica is the evaluation of a low cost mineral as a reinforcing material for the engineering polymer TPU.

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