Crystal Morphology and Thermal Properties of PTT/POE/OMMT Nanocomposites
The crystal morphology, melt-crystallization and mechanical properties of poly (trimethylene terephthalate)/maleinized poly (octene-ethylene)/organo-montmorillonite nanocomposites were investigated by using polarized optical microscopy (POM), differential scanning calorimetry (DSC) and universal material testing machine, respectively. The results suggest that the nanocomposites form smaller or imperfect microcrystallites with lower melting point due to the influence of OMMT components and the nanocomposites have increased crystallization rate because OMMT is an effective nucleation agent. However, the crystallinity decreases because of the thickening effect of OMMT in the composites. The nanocomposite with 2%OMMT has the largest tensile and impact strength.
Yuan Ming Huang
M. T. Run et al., "Crystal Morphology and Thermal Properties of PTT/POE/OMMT Nanocomposites", Solid State Phenomena, Vols. 181-182, pp. 39-42, 2012