In order to study the crystal characteristic of the POM composites, Ekonol/POM and Ekonol/G/MoS2/POM composites were prepared by the Torque Rheometer mixing and compression molding. The crystal behavior of the POM has been investigated by the XRD and DSC technique. And the melting point and crystallizing point of the composites have also been determined. Results show that the Ekonol has disadvantage on the growth of most of the crystal face of the POM. The relative crystallinity of POM has been enhanced with the rise of Ekonol content. The crystallizing point has a bit risen when more Ekonol i...