01646nam a2200205Ia 4500 MX-MdCICY 20260521091045.0 CICY B-7558 Orientation of carbon nanotubes in polymers and its detection by Raman spectroscopy Composites: Part A, 32A(3-4), p.391-399, 2001 Small amounts of single-wall carbon nanotubes embedded in a polymer matrix were used to sense the mechanical response of the polymer using microRaman spectral data. A flow orientation method was applied to align the nanotubes in the matrix. The Raman spectra obtained for specimens cut both parallel and perpendicular to the flow direction were found to be significantly different, as a function of mechanical strain. Thus Raman spectroscopy combined with mechanical testing provides a way to probe the alignment of nanotubes in composites. The Raman shift-strain response for samples loaded perpendicular to the flow direction suggests that nanotube reorientation is achieved upon straining the polymer beyond its yield point. Our data suggest that the adhesion between the nanotubes and the polymer exceeds the shear yield strength of the matrix. We show that a stress-strain curve for the polymer may be produced directly by means of Raman spectroscopy. CARBON NANOTUBES Wood, J.R. Zhao, Q. Wagner, H.D. https://drive.google.com/file/d/1yn8RKj-QuFOT_T1_I8n_d-SeiOyK7YGp/view?usp=drivesdk Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx Loc REF1 250602s9999 xx |||||s2 |||| ||und|d 17825 17825 0 0 Loc 0 0 F1 CICY CICY RE 2025-06-25 0 B-7558 2025-06-25 12:47:03 2025-06-25 REF1