Tensile Properties of the Beta-Nucleated Polypropylenes

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F03%3A63501155" target="_blank" >RIV/70883521:28110/03:63501155 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Tensile Properties of the Beta-Nucleated Polypropylenes
Original language 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.
Czech name
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Czech description
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Project
<a href="/en/project/GP106%2F03%2FP144" target="_blank" >GP106/03/P144: Optimisation of the processing parameters of the flow induced crystallization and relation to the structure and properties of final products</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2003
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
JUNIORMAT ´03, 4th International Conference, Proceedings
ISBN
80-214-2462-1
ISSN
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e-ISSN
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Number of pages
4
Pages from-to
132-135
Publisher name
Brno University of technology, Faculty of mechanical engineering
Place of publication
Brno
Event location
Brno
Event date
Sep 23, 2003
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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