Process stability enhancement by encapsulation extrusion method

Joo Sung Lee, Hyun Wook Jung, Jae Chun Hyun

Research output: Contribution to conferencePaperpeer-review

1 Citation (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
CountryUnited States
CityNashville, TN
Period03/5/403/5/8

Keywords

  • Draw resonance
  • Encapsulation
  • Film casting
  • Stability

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Polymers and Plastics

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