02141nam a2200313Ia 4500 MX-MdCICY 20260521091122.0 CICY B-8764 Effect of Nanoplatelet Dispersion on Mechanical Behavior of Polymer Nanocomposites Journal of Polymer Science: Part B: Polymer Physics, 45, p.1459-1469, 2007 By manipulating processing conditions, three levels of exfoliation of synthetic a-zirconium phosphate (a-ZrP)nanoplatelets in epoxy matrices have been achieved. Transmission electron microscopy and wide angle X-ray diffraction were utilized to confirm the three different levels of exfoliation of nanoplatelets in epoxy/a-ZrP nanocomposites. As expected, it was found that modulus and strength of the nanocomposite are affected by how well the nanoplatelets disperse. It was also found that the operative fracture mechanisms depend strongly on the state of the nanoplatelets dispersion. The crack deflection mechanism, which leads to a tortuous path crack growth, was only observed for poorly dispersed nanocomposites. Delamination of intercalated nanoplatelets and crack deflection were observed in a moderately dispersed system. In the case of fully exfoliated system, the crack only propagated in a straight fashion, which indicates that the fully exfoliated individual nanoplatelet can not affect the propagation of crack at all. The implication of the present findings for structural applications of polymer nanocomposites is discussed. A-ZIRCONIUM PHOSPHATE DEGREE OF EXFOLIATION EPOXY NANOCOMPOSITE FRACTURE TOUGHNESS MECHANICAL PROPERTIES Boo, W.J. Sun, L. Liu, J. Moghbelli, E. Clearfield, A. Sue, H.J. Pham, H. Pham, H. https://drive.google.com/file/d/1knZjr6HVKw7fRlXFfL9HDOWQp4cZXgbj/view?usp=drivesdk Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx Loc REF1 250602s9999 xx |||||s2 |||| ||und|d 19004 19004 0 0 Loc 0 0 F1 CICY CICY RE 2025-06-25 0 B-8764 2025-06-25 12:47:26 2025-06-25 REF1