About: Tomographic reconstruction of porous polyolefin particles

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	This contribution addresses several problems associated with morphology of porous polyethylene and polypropylene particles produced in catalytic gas- and liquid-dispersion reactors. The first addressed problem is the digital reconstruction of polyolefin particles from X ray micro-tomography images. The second problem is the dynamics of diffusion of penetrants away from the polymer particle because this process is crucial for the post-polymerization processing of the polymer. This dynamics of particle degassing is measured in the laboratory. In porous polyolefin particles with broad distribution of solid polymer zones the degassing curve cannot be approximated with simple Fick?s diffusion from compact spherical particle. Here we describe examination of the internal porous structure of polyolefin particles by scanning electron microscope with built-in X-ray tomography attachment (Micro-CT for SEM from SkyScan company). Polyolefin particle morphology is formally represented by the spatially 3D porous par This contribution addresses several problems associated with morphology of porous polyethylene and polypropylene particles produced in catalytic gas- and liquid-dispersion reactors. The first addressed problem is the digital reconstruction of polyolefin particles from X ray micro-tomography images. The second problem is the dynamics of diffusion of penetrants away from the polymer particle because this process is crucial for the post-polymerization processing of the polymer. This dynamics of particle degassing is measured in the laboratory. In porous polyolefin particles with broad distribution of solid polymer zones the degassing curve cannot be approximated with simple Fick?s diffusion from compact spherical particle. Here we describe examination of the internal porous structure of polyolefin particles by scanning electron microscope with built-in X-ray tomography attachment (Micro-CT for SEM from SkyScan company). Polyolefin particle morphology is formally represented by the spatially 3D porous par (en)
Title	Tomographic reconstruction of porous polyolefin particles Tomographic reconstruction of porous polyolefin particles (en)
skos:prefLabel	Tomographic reconstruction of porous polyolefin particles Tomographic reconstruction of porous polyolefin particles (en)
skos:notation	RIV/60461373:22340/09:00021974!RIV10-MSM-22340___
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA104/07/1127), Z(MSM6046137306)
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Kosek, Juraj Šeda, Libor Zubov, Alexandr Meisterová, Lucie Štěpánek, František
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoká škola chemicko-technologická v Praze / Fakulta chemicko-inženýrská
http://linked.open...dnocenehoVysledku	346483
http://linked.open...ai/riv/idVysledku	RIV/60461373:22340/09:00021974
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	X-ray tomography; particle morphology; diffusion; degassing; mathematical modeling (en)
http://linked.open.../riv/klicoveSlovo	degassing X-ray tomography diffusion mathematical modeling particle morphology
http://linked.open...ontrolniKodProRIV	[EC86D0AD2DCE]
http://linked.open...v/mistoKonaniAkce	Srní, Šumava
http://linked.open...i/riv/mistoVydani	Praha
http://linked.open...i/riv/nazevZdroje	CHISA 2009
http://linked.open...in/vavai/riv/obor	CI
http://linked.open...ichTvurcuVysledku	5 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Mathematical modeling and experimental study of the evolution of meso-scopic structure of polymeric materials
http://linked.open...UplatneniVysledku	2009
http://linked.open...iv/tvurceVysledku	Kosek, Juraj Štěpánek, František Zubov, Alexandr Šeda, Libor Pecháčková, Lucie
http://linked.open...vavai/riv/typAkce	CST - Celostátní
http://linked.open.../riv/zahajeniAkce	2009-10-19 (xsd:date)
http://linked.open...n/vavai/riv/zamer	Reakčně-transportní chemicko-inženýrské systémy a jejich dynamické chování, modelování a řízení chemických a biotechnologických procesů
number of pages	12 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Česká společnost chemického inženýrství
https://schema.org/isbn	978-80-86059-51-8
http://localhost/t...ganizacniJednotka	22340
is http://linked.open...avai/riv/vysledek of	Tomographic reconstruction of porous polyolefin particles Tomographic reconstruction of porous polyolefin particles Tomographic reconstruction of porous polyolefin particles Tomographic reconstruction of porous polyolefin particles

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