Electrical conductivity and physical changes of functionalized carbon nanotube/graphite/stainless steel (SS316L)/polypropylene composites immersed in an acidic solution

Hendra Suherman, Abu Bakar Sulong, Mohd Yusuf Zakaria, Nishata Royan, Jaafar Sahari

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Chemical functionalization of carbon nanotubes (CNTs) and graphite (G) was performed to improve their adhesion to a metal powder (SS316L) and a polypropylene (PP) matrix. A conductive pathway was thus formed to utilize the high electrical conductivity of the SS316L for conductive polymer composites (CPCs) applications. The rheological properties of the feedstock mixture were measured, and samples were formed by injection molding. Fourier transform infrared spectroscopy indicated the existence of functional groups generated by chemical wet oxidation. Only feedstock mixtures containing more than 28 vol% of the PP composite showed a shear rate (102s-1 to 105 s-1), shear viscosity (10 Pa·s to 103 Pa·s), and flow behavior index (n<1) suitable for injection molding. The functionalized composites exhibited improved electrical and mechanical properties over the as-produced composites. The functionalized composites containing 28 vol% PP obtained an electrical conductivity of 6 S/m, compared to 0.5 S/m for the as-produced composites.

Original languageEnglish
Pages (from-to)105-112
Number of pages8
JournalSongklanakarin Journal of Science and Technology
Volume40
Issue number1
DOIs
Publication statusPublished - 1 Jan 2018

Fingerprint

Carbon Nanotubes
Graphite
Polypropylenes
Stainless Steel
Composite materials
Injection molding
Feedstocks
Shear viscosity
Powder metals
Shear deformation
Functional groups
Electric Conductivity
Polymers
Electric properties
Adhesion
Oxidation
Mechanical properties

Keywords

  • Carbon nanotubes (CNTs)
  • Conductive polymer composites (CPCs)
  • Corrosion
  • Electrical conductivity
  • Stainless steel powder

ASJC Scopus subject areas

  • General

Cite this

Electrical conductivity and physical changes of functionalized carbon nanotube/graphite/stainless steel (SS316L)/polypropylene composites immersed in an acidic solution. / Suherman, Hendra; Sulong, Abu Bakar; Zakaria, Mohd Yusuf; Royan, Nishata; Sahari, Jaafar.

In: Songklanakarin Journal of Science and Technology, Vol. 40, No. 1, 01.01.2018, p. 105-112.

Research output: Contribution to journalArticle

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