Effect of intermolecular interactions and cooling rates on crystallization behaviors of polyamide 6 blends

Three types of polyamide 6 based blends are prepared, in which the intermolecular interactions are different, ranging from 'no interaction' to strong interaction. Under two extreme cooling conditions, the melts of the blends crystallized and then the crystalline structure and melting behaviors are examined, respectively. The results suggest that depending upon the degree of intermolecular interaction and the amount of the second component, PA6 may have different crystal forms.