Differential scanning calorimetry clay nanocomposites

Figure 9.12 Differential scanning calorimetry plots for neat PP and 4 wt% clay-reinforced PP nanocomposite. Reprinted from [58] with permission from Elsevier.

Lazzara, G., Mflioto, S., Gradzidsld, M., and Prevost S. (2009) Small angle neutron scattering. X-ray diffraction, differential scanning calorimetry, and ihermogravimetry studies to characterize the properties of clay nanocomposites. Journal of Physical Chemistry C, 113, 12213-12219. 

In a different work, the data obtained by temperature-modulated differential scanning calorimetry (TMDSC) showed the relationship between the interlayer distance (Ad) and the increase of heat capacity (ACp) for PU-clay intercalated nanocomposites [14]. The ACp values of nanocomposites with interlayer distances smaller than the characteristic length of bulk PU (1.45 nm) were reduced. However, for nanocomposites with interlayer spacing larger than 2 nm, cooperatively rearranging of PU was substantially unmodified by the presence of the nanofiller, and ACp values remained the same as that of bulk PU. 

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