Investigation of Thermal Degradation of Branched Polypropylene via Rheology

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F15%3A43873229" target="_blank" >RIV/70883521:28110/15:43873229 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1063/1.4918883" target="_blank" >http://dx.doi.org/10.1063/1.4918883</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/1.4918883" target="_blank" >10.1063/1.4918883</a>

Result language
angličtina
Original language name
Investigation of Thermal Degradation of Branched Polypropylene via Rheology
Original language description
In this work, virgin as well as thermally degraded branched polypropylenes were investigated by using rotational and Sentmanat extensional rheometers. Based on the shear and extensional rheology data it was deduced that both chain scission and chain branching takes place during thermal degradation of the tested polypropylene. It was found that simple phenomenological constitutive equations such as Generalized Newtonian law and modified White Metzner model can be used to describe the measured steady state shear and uniaxial extensional viscosity data as well as for the simple quantification of the extensional strain hardening via their model parameters.
Czech name
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Czech description
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Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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