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Polymer Bulletin

, Volume 54, Issue 1–2, pp 75–84 | Cite as

Rheology, Morphology and Estimation of Interfacial Tension of LDPE/EVA and HDPE/EVA Blends

  • H.A. Khonakdar
  • S.H. Jafari
  • A. Yavari
  • A. Asadinezhad
  • U. Wagenknecht
Article

Summary

Rheological characteristics and morphology of low-density polyethylene (LDPE) /ethylene vinyl acetate copolymer (EVA) and high-density polyethylene (HDPE)/EVA blends were compared. Morphological examinations clearly reveal a two-phase morphology in which the LDPE/EVA blends have smaller dispersed domain size than HDPE/EVA Furthermore, LDPE/EVA shows a finely interconnected morphology at 50wt% of EVA while HDPE/EVA exhibits a coarse co-continuous morphology at the same composition. The morphological observations can be attributed to the lower viscosity ratio and lower interfacial tension in the LDPE/EVA system. The Palierne model also successfully fits to the experimental data giving higher values for interfacial tension of HDPE/EVA system as compared to LDPE/EVA.

Keywords

Interfacial Tension HDPE LDPE Viscosity Ratio Vinyl Acetate 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 2005

Authors and Affiliations

  • H.A. Khonakdar
    • 1
  • S.H. Jafari
    • 2
    • 3
  • A. Yavari
    • 2
  • A. Asadinezhad
    • 2
  • U. Wagenknecht
    • 3
  1. 1.Department of Polymer ProcessingIran Polymer and Petrochemical Institute (IPPI)TehranIran
  2. 2.Department of Chemical Engineering, Faculty of EngineeringUniversity of TehranTehranIran
  3. 3.Leibniz Institute of Polymer Research DresdenDresdenGermany

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