Process stability enhancement by encapsulation extrusion method

Joo Sung Lee, Hyun Wook Jung, Jae Chun Hyun

    Research output: Contribution to conferencePaperpeer-review

    2 Citations (Scopus)

    Abstract

    A film casting simulation has been used to demonstrate why the encapsulation extrusion process is so effective industrially in enhancing the stability of the extrusion. In the present study, it is intended to explain theoretically why and how the coextrusion of LDPE in encapsulation dies improves the HDPE process. The undesirable neck-in and draw resonance phenomena frequently occurring in the extrusion of HDPE are shown due to its low-melt-strength property, and consequently can be alleviated using high-melt-strength materials in the encapsulating dies.

    Original languageEnglish
    Pages54-58
    Number of pages5
    Publication statusPublished - 2003
    Event61st Annual Technical Conference ANTEC 2003 - Nashville, TN, United States
    Duration: 2003 May 42003 May 8

    Other

    Other61st Annual Technical Conference ANTEC 2003
    Country/TerritoryUnited States
    CityNashville, TN
    Period03/5/403/5/8

    Keywords

    • Draw resonance
    • Encapsulation
    • Film casting
    • Stability

    ASJC Scopus subject areas

    • General Chemical Engineering
    • Polymers and Plastics

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