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Rheological behavior of polypropylene blends utilized in foaming process

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F10%3A63509513" target="_blank" >RIV/70883521:28110/10:63509513 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Rheological behavior of polypropylene blends utilized in foaming process

  • Original language description

    Morphological structure of polypropylene foams represented by the size of the bubbles and bubbles density is significantly affected by rheological properties of the source materials. Various blends of high molecular weight and high melt strength polypropylenes were prepared in a twin screw extruder, and subsequently foamed. Their shear flow behavior as well as strain hardening during elongation were found to be the factors of a key importance in foaming process optimization. In addition, pressure dependent shear flow behavior of the tested materials was determined using capillary rheometer modified with backpressure chamber, and obtained dependencies of shear viscosity on pressure conditions were analyzed in order to further tailor blend compositions regarding their following use in foaming processes. It has been demonstrated that foam morphology might be controlled not only through degree of bubble coalescence and nucleation rate by the help of optimizing of material components ratio,

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

    CD - Macromolecular chemistry

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/2A-1TP1%2F126" target="_blank" >2A-1TP1/126: Innovation of medical polymeric aids</a><br>

  • Continuities

    Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2010

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Article name in the collection

    Latest Trends on Engineering Mechanics, Structures, Engineering Geology

  • ISBN

    978-960-474-203-5

  • ISSN

  • e-ISSN

  • Number of pages

    4

  • Pages from-to

  • Publisher name

    WSEAS Press

  • Place of publication

    Corfu Island

  • Event location

    Corfu Island, Greece

  • Event date

    Jan 1, 2010

  • Type of event by nationality

    WRD - Celosvětová akce

  • UT code for WoS article