Nanoclay Reinforced Polyethylene Composites: Effect of Different Melt Compounding Methods

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Boran S. , Kiziltas A., Kiziltas E. E. , Gardner D. J. , Rushing T. S.

POLYMER ENGINEERING AND SCIENCE, vol.57, no.3, pp.324-334, 2017 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 57 Issue: 3
  • Publication Date: 2017
  • Doi Number: 10.1002/pen.24428
  • Page Numbers: pp.324-334


Nanoclay (NC) reinforced high-density polyethylene (HDPE) composites were prepared by different melt compounding methods using (1) a single screw extruder (SSE), (2) twin screw extruder (TSE), (3) a combination of SSE and extensional flow mixer (EFM), and (4) a bowl mixer masterbatch method (MB). PE-grafted maleic anhydride (PE-eta-MA) was used as a compatibilizer. EFM increased complex melt viscosity (eta*) of the HDPE/NC composites as compared to the neat HDPE and also provided a better interaction between HDPE and NC to create slightly lower melt eta* as compared to MB and PE-g-MA composites. The low viscosity melt behavior of the pure HDPE changes to more solid like melt behavior in the PE-eta-MA HDPE/NC composites in the low frequency (omega) region. PE-eta-MA1EFM method exhibited better impact strength compared to the other HDPE/NC composites. Using the PE-eta-MA and masterbatch compounding methods had a beneficial role in improving mechanical properties. (C) 2016 Society of Plastics Engineers