Melt flow behavior of polypropylene composites filled with multi-walled carbon nanotubes during extrusion

J. Z. Liang; C. Y. Chen; S. Y. Zou; Chi Pong Tsui; Chak Yin Tang; S. D. Zhang

doi:10.1016/j.polymertesting.2015.05.002

Melt flow behavior of polypropylene composites filled with multi-walled carbon nanotubes during extrusion

J. Z. Liang, C. Y. Chen, S. Y. Zou, Chi Pong Tsui, Chak Yin Tang, S. D. Zhang

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

35 Citations (Scopus)

Abstract

Polypropylene (PP) composites filled with multi-walled carbon nanotubes (MWCNTs) were prepared using a twin-screw extruder. The melt flow properties of the composites were measured with a capillary rheometer in a temperature range from 180 to 230 °C and at various apparent shear rates varying from 100 to 4000 s^-1. The results showed that the melt shear stress increased almost linearly while the melt shear viscosity decreased almost linearly with increasing shear rates in a bi-logarithmic coordinate system. The melt shear flow followed the power law relationship and the dependence of the melt shear viscosity on temperature obeyed the Arrhenius equation. The relationship between the melt shear viscosity and the MWCNT weight fraction was roughly linear under the investigated range of temperature or shear rate.

Original language	English
Pages (from-to)	41-46
Number of pages	6
Journal	Polymer Testing
Volume	45
DOIs	https://doi.org/10.1016/j.polymertesting.2015.05.002
Publication status	Published - 30 May 2015

Keywords

Extrusion
Polymer-matrix composites
Resin flow
Rheological properties

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics

More information

10.1016/j.polymertesting.2015.05.002

Cite this

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title = "Melt flow behavior of polypropylene composites filled with multi-walled carbon nanotubes during extrusion",

abstract = "Polypropylene (PP) composites filled with multi-walled carbon nanotubes (MWCNTs) were prepared using a twin-screw extruder. The melt flow properties of the composites were measured with a capillary rheometer in a temperature range from 180 to 230 °C and at various apparent shear rates varying from 100 to 4000 s-1. The results showed that the melt shear stress increased almost linearly while the melt shear viscosity decreased almost linearly with increasing shear rates in a bi-logarithmic coordinate system. The melt shear flow followed the power law relationship and the dependence of the melt shear viscosity on temperature obeyed the Arrhenius equation. The relationship between the melt shear viscosity and the MWCNT weight fraction was roughly linear under the investigated range of temperature or shear rate.",

keywords = "Extrusion, Polymer-matrix composites, Resin flow, Rheological properties",

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AU - Liang, J. Z.

AU - Chen, C. Y.

AU - Zou, S. Y.

AU - Tsui, Chi Pong

AU - Tang, Chak Yin

AU - Zhang, S. D.

PY - 2015/5/30

Y1 - 2015/5/30

N2 - Polypropylene (PP) composites filled with multi-walled carbon nanotubes (MWCNTs) were prepared using a twin-screw extruder. The melt flow properties of the composites were measured with a capillary rheometer in a temperature range from 180 to 230 °C and at various apparent shear rates varying from 100 to 4000 s-1. The results showed that the melt shear stress increased almost linearly while the melt shear viscosity decreased almost linearly with increasing shear rates in a bi-logarithmic coordinate system. The melt shear flow followed the power law relationship and the dependence of the melt shear viscosity on temperature obeyed the Arrhenius equation. The relationship between the melt shear viscosity and the MWCNT weight fraction was roughly linear under the investigated range of temperature or shear rate.

AB - Polypropylene (PP) composites filled with multi-walled carbon nanotubes (MWCNTs) were prepared using a twin-screw extruder. The melt flow properties of the composites were measured with a capillary rheometer in a temperature range from 180 to 230 °C and at various apparent shear rates varying from 100 to 4000 s-1. The results showed that the melt shear stress increased almost linearly while the melt shear viscosity decreased almost linearly with increasing shear rates in a bi-logarithmic coordinate system. The melt shear flow followed the power law relationship and the dependence of the melt shear viscosity on temperature obeyed the Arrhenius equation. The relationship between the melt shear viscosity and the MWCNT weight fraction was roughly linear under the investigated range of temperature or shear rate.

KW - Extrusion

KW - Polymer-matrix composites

KW - Resin flow

KW - Rheological properties

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U2 - 10.1016/j.polymertesting.2015.05.002

DO - 10.1016/j.polymertesting.2015.05.002

M3 - Journal article

SN - 0142-9418

VL - 45

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EP - 46

JO - Polymer Testing

JF - Polymer Testing

ER -

Melt flow behavior of polypropylene composites filled with multi-walled carbon nanotubes during extrusion

Abstract

Keywords

ASJC Scopus subject areas

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