Preparation and Characterization of Polyamide6/Montmorillonite Nanocomposites by Reactive Extrusion

ABSTRACT The polymerization of polymide6/montmorillonite (MMT) nanocomposites in a twin-screw reactive extruder is introduced in this article. Samples with different amount, of montmorillonite were measured and characterized by X-ray diffraction (XRD) and differential scanning calorimetry (DSC). The results indicate that the crystallization and thermal behaviour of PA6 are influenced by the addition of montmorillonite. A silicate-induced γ-form crystal formation was confirmed by XRD and DSC. The molecular weight and molecular weight distribution were measured by GPC and showed a tendency to increase and then decrease with increase, screw speed. Moreover, the obtained PA6/MMT was spun into fiber and fiber structure and properties were also analyzed and characterized.