The epitaxial crystallization of highly oriented films of IPP/HDPE blends has been studied in this work by means of trasmission electron microsscopy. When the content of HDPE in the iPP/HDPE blends is below 30%
epitaxial growth of HDPE lamellae on highly oriented IPP lamellae has been observed. The intercrossing angle of the two kinds of epitaxial lamellae is about ±45°
while the contact planes should be (010) of IPP and (100) of HDPE. There is no above relationship epitaxial crystallization in the films when the content of HDPE in the blends is over 40% because of the formation of independent domain of HDPE.