Rheological and mechanical properties of carbon nanotube/Graphite/SS316L/ polypropylene nanocomposite for a conductive polymer composite

Abu Bakar Sulong, Mohd Ikram Ramli, Seow Liang Hau, Jaafar Sahari, Norhamidi Muhamad, Hendra Suherman

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

Highly filled conductive fillers (>60 vol%) for conductive polymer composites (CPCs) cause the degradation of rheological and mechanical properties. This study investigated the rheological properties of highly filled metal powder (SS316L) in a polymer matrix composite combined with carbon nanotubes (CNTs) and Graphite (G). The effects of filler concentrations and chemical functionalization on the mechanical and electrical properties of the resulting CPC were determined. Feedstocks with different concentrations were injection molded, and the molded specimens were subjected to tests of tensile strength, three-point bending, hardness, and three-point probe electrical conductivity. The feedstock of CNTs/G/SS316L can be injection molded from 28 vol% polypropylene (PP). The functionalized CPC shows higher strength and elongation than as-produced CPC based on the tensile and flexural tests. The highest flexural and tensile strengths are 80 and 35 MPa, respectively. The functionalized CPC also exhibits higher hardness and better electrical properties than as-produced CPC. Thus, functionalization with CNTs and Graphite enable the reinforcement and formation electrical conducting networks between metal- and carbon-based fillers within a polymer matrix.

Original languageEnglish
Pages (from-to)54-61
Number of pages8
JournalComposites Part B: Engineering
Volume50
DOIs
Publication statusPublished - Jul 2013

Fingerprint

Carbon Nanotubes
Graphite
Polypropylenes
Carbon nanotubes
Nanocomposites
Polymers
Mechanical properties
Composite materials
Fillers
Feedstocks
Electric properties
Tensile strength
Hardness
Polymer matrix composites
Powder metals
Polymer matrix
Bending strength
Elongation
Reinforcement
Carbon

Keywords

  • A. Polymer-matrix composites (PMCs)
  • B. Mechanical properties
  • D. Mechanical testing
  • E. Injection molding

ASJC Scopus subject areas

  • Ceramics and Composites
  • Mechanics of Materials
  • Industrial and Manufacturing Engineering
  • Mechanical Engineering

Cite this

Rheological and mechanical properties of carbon nanotube/Graphite/SS316L/ polypropylene nanocomposite for a conductive polymer composite. / Sulong, Abu Bakar; Ramli, Mohd Ikram; Hau, Seow Liang; Sahari, Jaafar; Muhamad, Norhamidi; Suherman, Hendra.

In: Composites Part B: Engineering, Vol. 50, 07.2013, p. 54-61.

Research output: Contribution to journalArticle

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