Melt Flow Behavior in Capillary Extrusion of Nanosized Calcium Carbonate Filled PLLA/PCL Bio-Composites

Ji Zhao Liang; Lin Zhou; Chak Yin Tang; Chi Pong Tsui

doi:10.1007/s10924-012-0556-9

Melt Flow Behavior in Capillary Extrusion of Nanosized Calcium Carbonate Filled PLLA/PCL Bio-Composites

Ji Zhao Liang, Lin Zhou, Chak Yin Tang, Chi Pong Tsui

Research output: Journal article publication › Journal article › Academic research › peer-review

4 Citations (Scopus)

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 103s-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-CaCO3composite was described by a quadratic equation.

Original language	English
Pages (from-to)	857-863
Number of pages	7
Journal	Journal of Polymers and the Environment
Volume	21
Issue number	3
DOIs	https://doi.org/10.1007/s10924-012-0556-9
Publication status	Published - 1 Sept 2013

Keywords

Bio-composites
Flow property
Melt extrusion
Nano-CaCO 3
PCL
PLLA

ASJC Scopus subject areas

Environmental Engineering
Polymers and Plastics
Materials Chemistry

More information

10.1007/s10924-012-0556-9

Cite this

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title = "Melt Flow Behavior in Capillary Extrusion of Nanosized Calcium Carbonate Filled PLLA/PCL Bio-Composites",

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 103s-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-CaCO3composite was described by a quadratic equation.",

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AU - Zhou, Lin

AU - Tang, Chak Yin

AU - Tsui, Chi Pong

PY - 2013/9/1

Y1 - 2013/9/1

N2 - 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 103s-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-CaCO3composite was described by a quadratic equation.

AB - 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 103s-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-CaCO3composite was described by a quadratic equation.

KW - Bio-composites

KW - Flow property

KW - Melt extrusion

KW - Nano-CaCO 3

KW - PCL

KW - PLLA

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DO - 10.1007/s10924-012-0556-9

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Melt Flow Behavior in Capillary Extrusion of Nanosized Calcium Carbonate Filled PLLA/PCL Bio-Composites

Abstract

Keywords

ASJC Scopus subject areas

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