Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/15508
Title: Melt flow behavior in capillary extrusion of nanosized calcium carbonate filled PLLA/PCL bio-composites
Authors: Liang, JZ
Zhou, L
Tang, CY 
Tsui, CP 
Keywords: Bio-composites
Flow property
Melt extrusion
Nano-CaCO3
PCL
PLLA
Issue Date: 2012
Publisher: Springer/Plenum Publishers
Source: Journal of polymers and the environment, 2012, p. 1-7 How to cite?
Journal: Journal of Polymers and the Environment 
Abstract: Nanosized calcium carbonate (nano-CaCO3) filled poly-l-lactide (PLLA)/polycaprolactone (PCL) bio-composites were prepared by using a twin-screw extruder. The melt flow behavior of the composites, including the entry pressure drop, melt shear flow curves and melt shear viscosity were measured through a capillary rheometer operated at a temperature range of 170-200 °C and shear rates varying from 50 to 103 s-1. The melt shear flow roughly followed the power law, while the effect of temperature on the melt shear viscosity might be estimated by using the Arrhenius equation. Moreover, the relationship between the PCL weight fraction and the melt shear viscosity for the PLLA/PCL/nano-CaCO3 composite was described by a quadratic equation.
URI: http://hdl.handle.net/10397/15508
ISSN: 1566-2543
DOI: 10.1007/s10924-012-0556-9
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