Publication detail

Processing Degradation Index (PDI) – A Quantitative Measure of Processing Stability of Polypropylene

TOCHÁČEK, J. JANČÁŘ, J.

Original Title

Type

abstract

Language

English

Original Abstract

Multiple extrusion simulating thermo-mechanical processing conditions on a laboratory scale has commonly been accepted as a tool for assessing the processing stability of polypropylene. The graphical output of multiple extrusion is the processing curve (MFI vs. number of extrusions), the slope and position of which provide information on the extent of polymer degradation. Processing degradation index (PDI) has been proposed as the way of numerical processing of this curve, which allows expressing its position by means of a single parameter. The application of PDI then allows direct construction of plots showing the dependence of processing stability upon variables such as additives concentration, matrix composition, temperature or simply the origin of the polymer.

Keywords

Degradation; Processing stability; Processing index; Multiple extrusion; Thermo-mechanical degradation; Melt processing; Polypropylene;

Authors

TOCHÁČEK, J.; JANČÁŘ, J.

Released

21. 10. 2012

Publisher

ICPC

Location

Houston, TX, U.S.A.

Pages from

Pages to

Pages count

BibTex

@misc{BUT96736,
  author="Jiří {Tocháček} and Josef {Jančář}",
  title="Processing Degradation Index (PDI) – A Quantitative Measure of Processing Stability of Polypropylene",
  booktitle="4th International Conference on Polyolefin Characterization, The Woodlands, TX, U.S.A.",
  year="2012",
  series="4th ICPC",
  pages="97--97",
  publisher="ICPC",
  address="Houston, TX, U.S.A.",
  note="abstract"
}