02063nam a2200277Ia 4500003001000000005001700010040000900027245008700036490007900123520114600202650002601348650002601374650002401400650002301424650002601447700001401473700001201487700001201499700001801511700001901529700001401548700001301562700001301575856015601588008004101744MX-MdCICY20260521091122.0  cCICY10aEffect of Nanoplatelet Dispersion on Mechanical Behavior of Polymer Nanocomposites0 vJournal of Polymer Science: Part B: Polymer Physics, 45, p.1459-1469, 20073 aBy 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.14aA-ZIRCONIUM PHOSPHATE14aDEGREE OF EXFOLIATION14aEPOXY NANOCOMPOSITE14aFRACTURE TOUGHNESS14aMECHANICAL PROPERTIES12aBoo, W.J.12aSun, L.12aLiu, J.12aMoghbelli, E.12aClearfield, A.12aSue, H.J.12aPham, H.12aPham, H.40uhttps://drive.google.com/file/d/1knZjr6HVKw7fRlXFfL9HDOWQp4cZXgbj/view?usp=drivesdkzPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx250602s9999    xx |||||s2   |||| ||und|d