Relaxation of hydrogen to evaluate the organizational structure of pc/tio2 nanocomposites
International Journal of Development Research
Relaxation of hydrogen to evaluate the organizational structure of pc/tio2 nanocomposites
Received 20th September, 2018; Received in revised form 03rd October, 2018; Accepted 29th November, 2018; Published online 26th December, 2018
Copyright © 2018, Karla Andrade Quintã et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Time-domain nuclear magnetic resonance (TD-NMR) was used to characterize blends of polycarbonate and titanium dioxide from proton spin-lattice relaxation times, which allows analyzing the influence of nanoparticles incorporation in the polymer structure. Differences in longitudinal relaxation time (T1H) and distribution curves of the relaxation times were related to alterations in the rigidity, and consequently the homogeneity of the materials. The modifications in the pattern of domain curves indicated the influence of each processing temperature. The results demonstrated that it is possible to alter the properties of the polycarbonate by increasing titanium oxide concentration, which tends to cause its agglomeration while processing temperature directly affects the structure of the obtained materials.
