Effect of Carbon Nanotubes on Thermal Properties and Crystallization Kinetics of High Density Polyethylene

مهندسی متالورژی و مواد

Article 7, Volume 30, Issue 2 - Serial Number 20, 2019, Pages 67-78   

Document Type: Original Articles

DOI: 10.22067/ma.v30i2.62559

Authors

samanrh sahebian^{* 1}; sare moazen²

¹Ferdowsi university of Mshhad

²Ferdowsi university of Mashhad

Abstract

In this study, HDPE and its nanocomposites with 1, 2.5 and 5 weight percent of carbon nanotube were prepared using mini-extrusion machine. Thermal properties and crystallization kinetics of samples were studied by differential scanning calorimetry methods at different cooling rates. Results shows that solidification and enthalpy increases in presence of carbon nanotubes. Carbon nanotubes acts as nucleation sites. Besides, relative crystallinity in nanocomposites is higher than pure polyethylene. Furthermore, Avrami index (n) decreases from 3 to 2 in nanocomposites. Finally, the activation energy for the crystallization process was calculated using Kissinger and OFW methods.

Keywords

HDPE; Carbon Nanotube; Crystallization kinetics; Thermal properties

Supplementary Files

7-moazen_AK_EDITS.pdf

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