Authors Asadinezhad, A. ; Yavari, A. ; Jafari, S.H. ; Khonakdar, H. A. ; Böhme, F.
Title Description of the Dynamic Moduli of Poly(trimethylene terephthalate)/Polyamide-12 Blends in Molten State
Date 22.09.2005
Number 13304
Abstract Binary melt blends of two thermoplastics - poly(trimethylene terephthalate) (PTT) and polyamide-12 (PA12) - having a large difference in zero-shear viscosity values, were prepared in different blending ratios (PTT/PA12 90/10, 75/25, 25/75, 10/90) by means of a twin-screw extruder. Scanning electron microscopy (SEM) confirmed droplet morphology subsequently quantified using image analysis. Dynamic rheological behavior at blending temperature (230°C) was also recorded on a parallel plate oscillatory rheometer within the linear viscoelastic range. The applicability of two emulsion models, the Palierne analysis plus the Gramespacher and Meissner model, as well as a micromechanical model, the Coran analysis, to describe the dynamic moduli of the system in different compositions was investigated and also a comparison on these models was presented. POLYM. ENG. SCI., 45:1401-1407, 2005. © 2005 Society of Plastics Engineers
Publisher Polymer Engineering and Science
Citation Polymer Engineering and Science 45 (2005) 1401-1407

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