Experimental investigation of flow induced molecular weight fractionation during extrusion of HDPE polymer melts

Musil, Jan; Zatloukal, Martin

Title:

Author:

Musil, Jan; Zatloukal, Martin

Document type:

Peer-reviewed article (English)

Source document:

Chemical Engineering Science. 2011, vol. 66, issue 20, p. 4814-4823

ISSN:

0009-2509 (Sherpa/RoMEO, JCR)

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DOI:

https://doi.org/10.1016/j.ces.2011.06.047

Abstract:

In this work, two different HDPEs with virtually identical number, Mn, and weight, Mw, average molecular weights were investigated from rheological as well as die drool phenomenon point of view. It has been revealed that long-chain branching, low polymer melt elasticity and shear viscosity significantly reduce die drool phenomenon at the die exit region. It has been concluded that die drool phenomenon of HDPE polymer melts can be explained by the flow induced molecular weight fractionation. Â© 2011 Elsevier Ltd.

Full text:

https://www.sciencedirect.com/science/article/pii/S0009250911004337

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Citace článku v časopise:
MUSIL, Jan a Martin ZATLOUKAL. Experimental investigation of flow induced molecular weight fractionation during extrusion of HDPE polymer melts. Chemical Engineering Science [online]. 2011, vol. 66, iss. 20, s. 4814-4823. [cit. 2024-12-12]. ISSN 0009-2509. Dostupné z: https://www.sciencedirect.com/science/article/pii/S0009250911004337.

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