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

Viviane Escocio, Volker Altstadt, Leila Visconte, Mariana de Carvalho and Regina Nunes

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.

[1] Moon S.-Y., Kim J.-K., Nah C. and Lee Y.-S.: Eur. Polym. J., 2004, 40, 1615.
[2] Wang X. and Luo X.: ibid, 2391.
[3] Gan D., Lu S., Song C. and Wang Z.: Eur. Polym. J., 2001, 37, 1359.
[4] Vainio M., Heino M. and Seppala J.: Polymer, 1998, 39, 865.
[5] Miles I. and Rostami S.: Multicomponent Polymer Systems. Wiley, New York 1992.
[6] Haake Laboratory Information 9002-7E, Haake Mess-Technic GmbH, Germany, 1989.
[7] Lapa V., Visconte L., Affonso J. and Nunes R.: Polym. Test., 2002, 21, 443.
[8] Gonzalez E., Costa D., Visconte L. and Nunes R.: Polym. Test., 2001, 20, 703.
[9] Escocio V., Visconte L., Nunes R. and Oliveira M: Int. J. Polym. Mater., 2008, 57, 374.
[10] Freire E., Bianchi O., Monteiro E. et al.:Mater. Sci. Eng., 2009, C29, 657.
[11] Pinto U., Visconte L. and Nunes R.: Eur. Polym. J., 2001, 37, 1935.
[12] Berlin A., Volfson S., Enikolopian N. and Negmatov S.: Principles of Polymer Composites. Springer, Berlin 1986.
[13] Nielsen L.: Mechanical Properties of Polymers and Composites. Marcel Dekker, New York 1974.
[14] Nunes R., Fonseca J. and Pereira M.: Polym. Test., 2000, 19, 93.
[15] Nguyen D., Lee Y., Raghu A. et al.: Polym. Int., 2009, 58, 412.
[16] Seo W., Sung Y., Han S. et al.:J. Appl. Polym. Sci., 2006, 101, 2879.