INTEMA   05428
INSTITUTO DE INVESTIGACIONES EN CIENCIA Y TECNOLOGIA DE MATERIALES
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Damping Capacity in carbon nanotubes/epoxy elastomers
Autor/es:
M. L. AUAD; C. UZUNPINAR; R. J.J. WILLIAMS; M. A. MOSIEWICKI
Lugar:
Salt Lake City, UT, USA
Reunión:
Otro; 237th ACS National Meeting; 2009
Resumen:
High structural damping capacity is an important design parameter for all machine-elements and manufacturing tools. Reduced vibration relieves dynamic stresses and improves system performance and reliability in high performance composites. Studies have shown that nanocomposites containing single-wall or multi-wall carbon nanotubes (SWCNT and MWCNT) can achieve high damping capacity by taking advantage of the weak bonding and interfacial friction between individual nanotubes and the matrix, without sacrificing mechanical properties or structural integrity. The aim of this study is to show the effect of modified MWCNTs and SWNTs dispersed in an epoxy elastomer on the damping capacity of the material.  The quality of the initial dispersion was assessed by the constancy of the storage modulus with frequency in the low-frequency range. Cured elastomers exhibited a large increase of the loss modulus with increasing amounts of SWCNT and MWCNT.