Influence of the nanotube oxidation on the rheological and electrical properties of CNT/HDPE composites

Maria Rossella Nobile, Elvira Somma, Olga Valentino, George Simon, Heinz Christoph Neitzert

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

1 Citation (Scopus)

Abstract

Rheological and electrical properties of nanocomposites based on multi-walled carbon nanotubes (MWNTs) and high density polyethylene (HDPE), prepared by melt mixing in a micro-twin screw extruder, have been investigated. The effect of MWNT concentration (0.5 and 2.5 wt %) and nanotube surface treatment (oxidative treatment in a tubular furnace at 500°C for 1 hr in a 95% nitrogen, 5% oxygen atmosphere) has been analyzed. It has been found that the sample conductivity with oxidation of the nanotubes decreases more than 2 orders of magnitude. Scanning electron microscopy showed good adhesion and dispersion of nanotubes in the matrix, independently of the surface treatment. Electrical and rheological measurements revealed that the oxidative treatment, causing some reduction of the MWNT quality, decreases the efficiency of the nanotube matrix interaction.

Original languageEnglish
Title of host publicationVIII International Conference on Times of Polymers (TOP) and Composites: From Aerospace to Nanotechnology
Subtitle of host publicationIschia, Naples, Italy; 19 - 23 June 2016
EditorsAlberto D’Amore, Domenico Acierno, Luigi Grassia
PublisherAIP Publishing
Number of pages4
ISBN (Electronic)9780735413900
DOIs
Publication statusPublished - 18 May 2016
EventInternational Conference on Times of Polymers (TOP) and Composites 2016: From Aerospace to Nanotechnology - Ischia, Naples, Italy
Duration: 19 Jun 201623 Jun 2016
Conference number: 8th

Publication series

NameAIP Conference Proceedings
PublisherAIP Publishing
Volume1736
ISSN (Print)0094-243X

Conference

ConferenceInternational Conference on Times of Polymers (TOP) and Composites 2016
Abbreviated titleTOP 2016
CountryItaly
CityIschia, Naples
Period19/06/1623/06/16

Keywords

  • CNTs
  • electrical conductivity
  • nanocomposites
  • oxidation
  • Rheology

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