Processing/microstructure relationships in melt compounded polyamide 6 with different molecular weights: Effect of screw speed and viscosity ratio

• Published in: Polymer engineering and science Vol. 65; no. 5; pp. 2525 - 2538
• Main Authors: Cravero, Fulvia, Arrigo, Rossella, Frache, Alberto
• Format: Journal Article
• Language: English
• Published: Hoboken, USA John Wiley & Sons, Inc 01.05.2025; Society of Plastics Engineers, Inc; Blackwell Publishing Ltd
• Subjects: Analysis; Crystallization; flow‐induced crystallization; melt compounding; Memory; memory effect; Microstructure; PA6; Polyamide resins; Polyamides; Process parameters; processing parameters; Rheological properties; Shear rate; Viscosity; Viscosity ratio; Italy

In this work, the relationships between the processing parameters and the microstructure in melt‐compounded polyamide 6 (PA6) are investigated. To this aim, two PA6 having different viscosities are processed in a twin‐screw extruder at two different screw speeds (150 or 300 rpm) and characterized th...