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

Document Type : Original Articles

Authors

• samanrh sahebian ¹
• sare moazen ²

¹ Ferdowsi university of Mshhad

² Ferdowsi university of Mashhad

10.22067/ma.v30i2.62559

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

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