STUDY ON PREPARATION OF PP/PA6/OMMT NANOCOMPOSITES AND BATCH FOAMING PROCESS CONDITIONS WITH VIBRATION FORCE FIELD

摘要

The composites of polypropylene/polyamide-6nano-organ-montmorillonite (PP/PA6/0MMT) with superior comprehensive properties were prepared using PP-g-maleic anhydride (MAH) as compatibilizer prepared by dicumyl peroxide/benzoyl peroxide. It was shown that the addition of PP-g-MAH and OMMT nanoparticles improved impact strength and tensile strength as well as melt strength. Microcellular batch foaming equipment with Supercritical CO_2 was used to study the foaming conditions of composites including foaming temperature, rotor rate and vibration force. The results presented improved microstructures, uniformed distribution, and the enhanced density resulting from employing vibration force field to shear stress force field.