About: Tensile Properties of the Beta-Nucleated Polypropylenes

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	According to crystallization conditions isotactic polypropylene can crystallize in several forms denoted alpha, beta and gamma. It is known that the beta phase content can significantly influence the properties of material. It is generally known that beta phase of iPP is less thermodynamically stable than alpha phase. Therefore it may seem that properties, which were improved by presence of beta phase, can change with time as a result of decrease of the beta phase content. That is why the aim of this work is to analyse time stability of the beta phase and its influence on the tensile properties of the injection molded samples. It has been found that the beta phase content has strong effect on the tensile properties; in particular an elongation at breakof the nucleated samples has been improved very significantly. It is also evident that beta phase is time-stable and samples hold their mechanical properties independently of time. According to crystallization conditions isotactic polypropylene can crystallize in several forms denoted alpha, beta and gamma. It is known that the beta phase content can significantly influence the properties of material. It is generally known that beta phase of iPP is less thermodynamically stable than alpha phase. Therefore it may seem that properties, which were improved by presence of beta phase, can change with time as a result of decrease of the beta phase content. That is why the aim of this work is to analyse time stability of the beta phase and its influence on the tensile properties of the injection molded samples. It has been found that the beta phase content has strong effect on the tensile properties; in particular an elongation at breakof the nucleated samples has been improved very significantly. It is also evident that beta phase is time-stable and samples hold their mechanical properties independently of time. (en)
Title	Tensile Properties of the Beta-Nucleated Polypropylenes Tensile Properties of the Beta-Nucleated Polypropylenes (en)
skos:prefLabel	Tensile Properties of the Beta-Nucleated Polypropylenes Tensile Properties of the Beta-Nucleated Polypropylenes (en)
skos:notation	RIV/70883521:28110/03:63501155!RIV/2004/GA0/281104/N
http://linked.open.../vavai/riv/strany	132-135
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GP106/03/P144), Z(MSM 265200015)
http://linked.open...vai/riv/dodaniDat	2004
http://linked.open...aciTvurceVysledku	Obadal, Martin Čermák, Roman Stoklasa, Karel
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	Univerzita Tomáše Bati ve Zlíně / Fakulta technologická
http://linked.open...dnocenehoVysledku	630519
http://linked.open...ai/riv/idVysledku	RIV/70883521:28110/03:63501155
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	beta phase, polypropylene, tensile properties, injection molding, time stability (en)
http://linked.open.../riv/klicoveSlovo	time stability injection molding tensile properties polypropylene beta phase
http://linked.open...ontrolniKodProRIV	[6E0F0C1C32A8]
http://linked.open...v/mistoKonaniAkce	Brno
http://linked.open...i/riv/mistoVydani	Brno
http://linked.open...i/riv/nazevZdroje	JUNIORMAT ´03, 4th International Conference, Proceedings
http://linked.open...in/vavai/riv/obor	CD
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...ocetUcastnikuAkce	0 (xsd:int)
http://linked.open...nichUcastnikuAkce	0 (xsd:int)
http://linked.open...vavai/riv/projekt	Optimisation of the processing parameters of the flow induced crystallization and relation to the structure and properties of final products
http://linked.open...UplatneniVysledku	2003
http://linked.open...iv/tvurceVysledku	Habrová, Veronika Čermák, Roman Obadal, Martin Stoklasa, Karel
http://linked.open...vavai/riv/typAkce	EUR - Evropská
http://linked.open.../riv/zahajeniAkce	2003-09-23 (xsd:date)
http://linked.open...n/vavai/riv/zamer	http://linked.opendata.cz/resource/domain/vavai/zamer/MSM%20265200015
number of pages	4 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Brno University of technology, Faculty of mechanical engineering
https://schema.org/isbn	80-214-2462-1
http://localhost/t...ganizacniJednotka	28110

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