Structure of extruded-blown film of high density polyethylene

Syozo Murakami, Shinzo Kohjiya, Tetsuya Uchida, Kaoru Shimamura

Research output: Contribution to journalArticle

1 Citation (Scopus)


Structure of the extruded-blown film of high density polyethylene was studied by X-ray diffraction, SEM, and SPM. Lamellar bundles were piled up along the extrusion direction and oriented perpendicular to the extrusion direction. Close observation by SPM revealed that one lamellar bundle which looked like a single lamella by SEM was actually composed of ca. 6 lamellae. We propose that formation of such lamellar bundles may be due to self-vibration by rubbing with a die during the extrusion of melt.

Original languageEnglish
Pages (from-to)828-832
Number of pages5
JournalKobunshi Ronbunshu
Issue number12
Publication statusPublished - 1999



  • Extruded-Blown Film
  • High Density Polyethylene
  • Lamellar Structure
  • Scanning Electron Microscopy
  • Scanning Probe Microscopy

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Environmental Science(all)
  • Materials Science (miscellaneous)
  • Ceramics and Composites
  • Polymers and Plastics

Cite this

Murakami, S., Kohjiya, S., Uchida, T., & Shimamura, K. (1999). Structure of extruded-blown film of high density polyethylene. Kobunshi Ronbunshu, 56(12), 828-832.