Effect of nitrogen content on physical properties of glass fiber reinforced polyamide 6 prepared by microcellular injection molding

摘要

The aim of the study was to determine the effect of the amount of nitrogen dosed in supercritical state to polymer melt on structure and physical properties of large-scale molded pieces from polyamide PA6 GF30, obtained in the process of microcellular injection molding with gas dosage using MuCell (R) method. Apart from the reduction of the density at a level of about 15 % for samples with the highest nitrogen content, the increase of the impact resistance of samples PA6 GF30 was observed. The other investigated mechanical properties were maintained at a good level.