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Determination of uniaxial extensional viscosity for polyolefins by improved entrance pressure drop measurements

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F07%3A63505491" target="_blank" >RIV/70883521:28110/07:63505491 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Determination of uniaxial extensional viscosity for polyolefins by improved entrance pressure drop measurements

  • Original language description

    In this work, specially designed zero-length dies were used for the entrance pressure drop measurements with the aim to determine uniaxial extensional viscosity of polyolefin melts by using effective entry length correction and Cogswell/Binding models and the results were compared with the extensional rheology determined with the Sentmanat extensional rheometer. Reasonable agreement between these two techniques has been obtained.

  • Czech name

    Stanovení jednoosé tahové viskozity pro polyolefiny vylepšenou metodou založenou na měření vstupních tlakových ztrát

  • Czech description

    V této práci byla stanovena jednoosá tahová viskozita pro taveniny polyolefinů, a to na základě použití speciálně navržené kapiláry mající nulovou délku a metod dle Cogswella a Bindinga. Výsledky byly srovnány s tahovými viskozitami získanými ze Sentmanatova elongačního reometru. Bylo zjištěno, že shoda mezi oběma použitými metodami je velmi dobrá.

Classification

  • Type

    D - Article in proceedings

  • CEP classification

    CD - Macromolecular chemistry

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/IAA200600703" target="_blank" >IAA200600703: Investigation of flow behaviour for a novel class of metallocene-based polymers</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2007

  • Confidentiality

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

Data specific for result type

  • Article name in the collection

    ANTEC 2007

  • ISBN

    0-9753707-5-8

  • ISSN

  • e-ISSN

  • Number of pages

    5

  • Pages from-to

    1955-1959

  • Publisher name

    Society of Plastics Engineers

  • Place of publication

    Brookfield

  • Event location

  • Event date

  • Type of event by nationality

  • UT code for WoS article