Effect of Clay on Immiscible Morphology of PBT/PE/Clay Nanocomposites. Journal of Applied Polymer Science, 2006, 102, 3628-3633.
作者：Defeng Wu, Chixing Zhou, Ming Zhang.
關(guān)鍵字：clay; morphology; PBT; PE; nanocomposites.
論文來源：期刊
具體來源：Journal of Applied Polymer Science
發(fā)表時(shí)間：2006年
Journal of Applied Polymer Science, 2006, 102, 3628-3633.
ABSTRACT: Polymer blend nanocomposites containing poly (butylene terephthalate) (PBT), polyethylene (PE), and organoclay were prepared by direct melt compounding. Their immiscible morphologies were investigated using a scanning electron microscope (SEM) and an X-ray diffractometer (XRD) as well as the parallel plate rheometer. The existence of clay tactoids reduces the PE domains size when polar PBT phase is continuous (PBT/PE=60/40). However, when PBT component presents the domains dispersed in rich PE matrix (PBT/PE=40/60), addition of clay ( 2wt %) changes the phase morphology into a novel co-continuous one, which are further confirmed by the rheological measurements. As a result, clay has significant effects on the morphology of the polymer blend. The formation of the percolated clay tactoids network leads to a remarkable enhancement in viscosity, which mainly promotes the phase inversion.