Melt flow properties of LDPE/HDPE blends in capillary extrusion

J. Z. Liang; R. K Y Li; S. C. Tjong

doi:10.3139/217.980046

Melt flow properties of LDPE/HDPE blends in capillary extrusion

J. Z. Liang
, R. K Y Li
, S. C. Tjong

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

6 Citations (Scopus)

Abstract

The melt flow properties of LDPE/HDPE blends in capillary extrusion have been investigated. It is found that the End pressure losses (ΔP_end) increase as a form of non-linear function with increasing the wall shear stress (τ_w) and the ΔP_end value of the sample is the minimum at the weight percentage content of HDPE (Φ_HD) being 50% when the τ_w. is fixed. The blend melt flow basically obeys the power law and the sensitivity of the melt viscosity (η_w) on the wall shear rate (γ_w) is weakened with increasing the φ_HD. Synergistic effect is obvious for the blend melts under experimental conditions. When the τ_w is 42.5 KPa, the η_w value achieves the maximum at the φ_HD=20%. In addition, the relationship between the η_w and the test temperature approximately accords with the Arrhenius equation as the τ_w is fixed.

© 1998, Carl Hanser Verlag, Munich

Original language	English
Pages (from-to)	46-49
Journal	International Polymer Processing
Volume	13
Issue number	1
DOIs	https://doi.org/10.3139/217.980046
Publication status	Published - Mar 1998

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title = "Melt flow properties of LDPE/HDPE blends in capillary extrusion",

abstract = "The melt flow properties of LDPE/HDPE blends in capillary extrusion have been investigated. It is found that the End pressure losses (ΔPend) increase as a form of non-linear function with increasing the wall shear stress (τw) and the ΔPend value of the sample is the minimum at the weight percentage content of HDPE (ΦHD) being 50\% when the τw. is fixed. The blend melt flow basically obeys the power law and the sensitivity of the melt viscosity (ηw) on the wall shear rate (γw) is weakened with increasing the φHD. Synergistic effect is obvious for the blend melts under experimental conditions. When the τw is 42.5 KPa, the ηw value achieves the maximum at the φHD=20\%. In addition, the relationship between the ηw and the test temperature approximately accords with the Arrhenius equation as the τw is fixed. {\textcopyright} 1998, Carl Hanser Verlag, Munich",

author = "Liang, \{J. Z.\} and Li, \{R. K Y\} and Tjong, \{S. C.\}",

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TY - JOUR

T1 - Melt flow properties of LDPE/HDPE blends in capillary extrusion

AU - Liang, J. Z.

AU - Li, R. K Y

AU - Tjong, S. C.

PY - 1998/3

Y1 - 1998/3

N2 - The melt flow properties of LDPE/HDPE blends in capillary extrusion have been investigated. It is found that the End pressure losses (ΔPend) increase as a form of non-linear function with increasing the wall shear stress (τw) and the ΔPend value of the sample is the minimum at the weight percentage content of HDPE (ΦHD) being 50% when the τw. is fixed. The blend melt flow basically obeys the power law and the sensitivity of the melt viscosity (ηw) on the wall shear rate (γw) is weakened with increasing the φHD. Synergistic effect is obvious for the blend melts under experimental conditions. When the τw is 42.5 KPa, the ηw value achieves the maximum at the φHD=20%. In addition, the relationship between the ηw and the test temperature approximately accords with the Arrhenius equation as the τw is fixed. © 1998, Carl Hanser Verlag, Munich

AB - The melt flow properties of LDPE/HDPE blends in capillary extrusion have been investigated. It is found that the End pressure losses (ΔPend) increase as a form of non-linear function with increasing the wall shear stress (τw) and the ΔPend value of the sample is the minimum at the weight percentage content of HDPE (ΦHD) being 50% when the τw. is fixed. The blend melt flow basically obeys the power law and the sensitivity of the melt viscosity (ηw) on the wall shear rate (γw) is weakened with increasing the φHD. Synergistic effect is obvious for the blend melts under experimental conditions. When the τw is 42.5 KPa, the ηw value achieves the maximum at the φHD=20%. In addition, the relationship between the ηw and the test temperature approximately accords with the Arrhenius equation as the τw is fixed. © 1998, Carl Hanser Verlag, Munich

UR - https://www.scopus.com/pages/publications/0007073642

UR - https://www.scopus.com/pages/publications/0007073642#tab=impact

U2 - 10.3139/217.980046

DO - 10.3139/217.980046

M3 - RGC 21 - Publication in refereed journal

SN - 0930-777X

VL - 13

SP - 46

EP - 49

JO - International Polymer Processing

JF - International Polymer Processing

IS - 1

ER -

Melt flow properties of LDPE/HDPE blends in capillary extrusion

Abstract

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