Reinforcement effect and synergy of carbon nanofillers with different dimensions in high density polyethylene nanocomposites

Dong Xiang, Lei Wang, Yuhao Tang, Christopher Hill, Biqiong Chen, Eileen Harkin-Jones

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Abstract

A comparative study of unary and binary carbon nanofiller reinforced high density polyethylene (HDPE) composites with 4 wt.% nanofillers was carried out in order to assess the reinforcement effect and synergy of carbon nanofillers with different dimensions. Rheology and resistivity tests indicate that the relative effectiveness of generating rheological and conductive networks is as follows: multi-walled carbon nanotubes (MWCNTs) > carbon black (CB) > graphene nanoplatelets (GNPs), while the reinforcement effect in modulus is: GNPs > MWCNTs > CB, at the same loading. The resistivity of all the HDPE/CB/MWCNT composites is quite close to the that of HDPE/MWCNT composites, indicating CB may be a good replacement for MWCNTs considering the relatively low cost of CB. A synergistic effect in modulus is observed in the HDPE/GNP/MWCNT and HDPE/CB/MWCNT composites due to the formation of nanofiller–polymer–nanofiller network structures.
Original languageEnglish
Pages (from-to)322-334
Number of pages13
JournalInternational Journal of Materials Research
Volume108
DOIs
Publication statusPublished - 17 Feb 2017

Keywords

  • Polymer nanocomposites
  • High density polyethylene
  • Graphene nanoplatelets
  • carbon nanotubes
  • nano carbon black
  • elongational deformation
  • Biaxial

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