Influence of the nanotube oxidation on the rheological and electrical properties of CNT/HDPE composites
- Department of Industrial Engineering – DIIn - Università di Salerno Via Giovanni Paolo II, 132 - 84084 Fisciano (Italy)
- Department of Materials Engineering, Monash University, Clayton, Victoria 3800 (Australia)
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.
- OSTI ID:
- 22609178
- Journal Information:
- AIP Conference Proceedings, Vol. 1736, Issue 1; Conference: 8. international conference on times of polymers and composites: From aerospace to nanotechnology, Naples (Italy), 19-23 Jun 2016; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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