Journal of Industrial and Engineering Chemistry, Vol.20, No.1, 259-267, January, 2014
Tailoring the morphology of polypropylene/polyamide 66 blend at an asymmetric composition by using organoclay and maleic anhydride grafted polypropylene
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The morphology of polypropylene (PP)/polyamide 66 (PA66) blend at an asymmetric composition is tailored by organoclay and maleic anhydride grafted polypropylene (MAPP). Without MAPP, a transition from typical sea-island morphology to coarse co-continuous morphology is observed when organoclay loading relative to PA66 phase reaches 10 wt%. With 10 wt% of organoclay, the coarse co-continuous morphology is transformed to fine fibrillar and then to rod-like morphology with increasing MAPP contents. The morphological changes are well interpreted from the view of morphology evolution process. Finally, an attempt was made to correlate the melt dynamic rheological response of all samples with corresponding morphology.
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