Preparation of multiwall carbon nanotubes (MWCNTs) stabilised by highly branched hydrocarbon surfactants and dispersed in natural rubber latex nanocomposites

Azmi Mohamed*, Argo Khoirul Anas, Suriani Abu Bakar, Azira Abd Aziz, Masanobu Sagisaka, Paul Brown, Julian Eastoe, Azlan Kamari, Norhayati Hashim, Illyas Md Isa

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

26 Citations (Scopus)
301 Downloads (Pure)

Abstract

The performance of single-, double- and triple-chain anionic sulphosuccinate surfactants for dispersing multiwall carbon nanotubes (MWNCTs) in natural rubber latex (NR-latex) was studied using a range of techniques, including field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), thermogravimetric analysis (TGA) and Raman spectroscopy. The conductivities of the nanocomposites were also investigated using four-point probe measurements. Here, MWCNTs were efficiently dispersed in NR-latex with the aid of hyperbranched tri-chain sulphosuccinate anionic surfactants, specifically sodium 1,4-bis(neopentyloxy)-3-(neopentyloxycarbonyl)-1,4-dioxobutane-2-sulphonate (TC14). This paper highlights that TC14 performs much better than that of the commercially available surfactant sodium dodecyl sulphate (SDS), demonstrating how careful consideration of surfactant architecture leads to improved dispersibility of MWCNTs in NR-latex. The results should be of significant interest for improving nanowiring applications suitable for aerospace-based technology.

Original languageEnglish
Pages (from-to)3013-3023
Number of pages11
JournalColloid and Polymer Science
Volume292
Issue number11
DOIs
Publication statusPublished - 1 Aug 2014

Keywords

  • Multiwall carbon nanotubes (MWCNTs)
  • Nanocomposites
  • Natural rubber latex (NR-latex)
  • Sodium dodecyl sulphate (SDS)
  • Surfactant

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