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PRESSURE DEPENDENT FLOW BEHAVIOR OF LINEAR HIGH MOLECULAR WEIGHT AND BRANCHED HIGH MELT STRENGTH POLYPROPYLENE BLENDS

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F10%3A63509515" target="_blank" >RIV/70883521:28110/10:63509515 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    PRESSURE DEPENDENT FLOW BEHAVIOR OF LINEAR HIGH MOLECULAR WEIGHT AND BRANCHED HIGH MELT STRENGTH POLYPROPYLENE BLENDS

  • Original language description

    Production of polymer foam is dramatically affected by rheological properties of processed materials. Pressure and temperature conditions during polymer processing play a key role in the final foam morphology. In this study, various compositions of linear high molecular weight, and branched high melt strength polypropylenes were blended in twin screw extruder. Pressure dependent shear flow behavior of the tested materials was determined using modified on-line and off-line capillary rheometers. Viscositydata determined via capillary rheometer supplemented with backpressure chamber was compared with data evaluated on extrusion rheometers equipped with modified slit die. Obtained dependencies of shear flow behavior on processing conditions were analyzedin order to optimize blend compositions regarding their following use in foaming processes.

  • Czech name

  • Czech description

Classification

  • Type

    O - Miscellaneous

  • 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