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

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	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. PDI is a relative parameter and has always be related to the given machinery, temperature and number of extrusions. 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. PDI is a relative parameter and has always be related to the given machinery, temperature and number of extrusions. (en)
Title	Processing Degradation Index (PDI) – A Quantitative Measure of Processing Stability of Polypropylene Processing Degradation Index (PDI) – A Quantitative Measure of Processing Stability of Polypropylene (en)
skos:prefLabel	Processing Degradation Index (PDI) – A Quantitative Measure of Processing Stability of Polypropylene Processing Degradation Index (PDI) – A Quantitative Measure of Processing Stability of Polypropylene (en)
skos:notation	RIV/00216305:26620/12:PU101370!RIV13-MSM-26620___
http://linked.open...avai/predkladatel	Středoevropský technologický institut
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(MSM0021630501)
http://linked.open...iv/cisloPeriodika	31
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Jančář, Josef Tocháček, Jiří
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoké učení technické v Brně / Středoevropský technologický institut
http://linked.open...dnocenehoVysledku	162407
http://linked.open...ai/riv/idVysledku	RIV/00216305:26620/12:PU101370
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Degradation, Processing stability, Processing index, Multiple extrusion, Thermo-mechanical degradation, Melt processing, Polypropylene, PDI (en)
http://linked.open.../riv/klicoveSlovo	Polypropylene Degradation Melt processing Multiple extrusion PDI Processing index Processing stability Thermo-mechanical degradation
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[5F1C4487A800]
http://linked.open...i/riv/nazevZdroje	POLYMER TESTING
http://linked.open...in/vavai/riv/obor	CD
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	31
http://linked.open...iv/tvurceVysledku	Jančář, Josef Tocháček, Jiří
http://linked.open...n/vavai/riv/zamer	Multifunkční heterogenní materiály na bázi syntetických polymerů a biopolymerů
issn	0142-9418
number of pages	6 (xsd:int)
http://localhost/t...ganizacniJednotka	26620
is http://linked.open...avai/riv/vysledek of	Processing Degradation Index (PDI) – A Quantitative Measure of Processing Stability of Polypropylene

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