Structure-property-processing investigation of electrically conductive polypropylene nanocomposites

Radwan Dweiri, Hendra Suherman, Abu Bakar Sulong, Jafar F. Al-Sharab

Research output: Contribution to journalArticle

Abstract

This paper investigates the structure-property-processing correlations of electrically conductive polypropylene (PP) nanocomposites. The process parameters and fabrication techniques of PP-based composite materials were studied. Various structures of carbon allotrope-based materials, including synthetic graphite (SG), exfoliated graphene nanoplatelets (xGnP), multi-walled carbon nanotubes (MWCNTs) and carbon black (CB), were used to fabricate the PP-based nanocomposites. The nanocomposites were prepared by either direct melt mixing using an internal mixer or by ball milling of components before the melt mixing process. The electrical and flexural properties were measured. In order to understand the conductivity behavior, both in-plane and through-plane electrical conductivities were measured. The results showed that the incorporation of the xGnP into PP/60 wt.% SG composites resulted in a slight increase of the in-plane conductivities and had a minimal effect on the through-plane conductivities. The addition of MWCNTs and CB to the PP/SG/xGnP composites had a significant effect on the electrical properties and was more pronounced in the case of MWCNTs. The flexural properties of all samples were much lower than those of pure PP. The interface between the filler and the PP matrix and the morphology of the composite materials were observed from the fracture surfaces of the composites using scanning electron microscopy (SEM). In addition, SEM was employed to observe adhesion, microstructural homogeneity, orientation of the xGnP platelets and agglomeration in the composites.

Original languageEnglish
Pages (from-to)1177-1186
Number of pages10
JournalIEEE Journal of Selected Topics in Quantum Electronics
Volume25
Issue number6
DOIs
Publication statusPublished - 1 Nov 2018

Fingerprint

polypropylene
Polypropylenes
Nanocomposites
nanocomposites
Artificial graphite
Processing
composite materials
Composite materials
Carbon nanotubes
graphite
carbon nanotubes
Carbon black
conductivity
carbon
electrical properties
Scanning electron microscopy
scanning electron microscopy
Ball milling
Platelets
agglomeration

Keywords

  • ball milling
  • electrical and flexural properties
  • melt mixing
  • morphological observations
  • PP composites

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

Cite this

Structure-property-processing investigation of electrically conductive polypropylene nanocomposites. / Dweiri, Radwan; Suherman, Hendra; Sulong, Abu Bakar; Al-Sharab, Jafar F.

In: IEEE Journal of Selected Topics in Quantum Electronics, Vol. 25, No. 6, 01.11.2018, p. 1177-1186.

Research output: Contribution to journalArticle

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