Novel Carbyne Filled Carbon Nanotube – Polymer Nanocomposites

Nataliia Luhyna, Rafaila Rafique, Sadia Sagar Iqbal, Jibran Khaliq, Mohd Shahneel Saharudin, Jiacheng Wei, Quratulane Qadeer, Fawad Inam

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Abstract

The availability of carbyne in carbon nanotubes (CNTs) induces intrinsic stiffening and strengthening of CNTs, and is exploited for the very first time in this report to process epoxy nanocomposites with improved mechanical and electrical properties. The existence of encapsulated carbyne in double wall CNTs (DWNTs) was confirmed using High Resolution Transmission Electron Microscopy (HR-TEM). The intrinsic stiffening of carbyne reinforced DWNTs (c-DWNTs) in epoxy matrix was visually confirmed by Field Emission Scanning Electron Microscopy (FE-SEM). In comparison to raw DWNTs reinforced epoxy nanocomposites, c-DWNTS imparted modest but improved tensile strength (5.6%), elastic modulus (9.7%), failure strain (9.9%) and fracture toughness (13%) to their respective epoxy nanocomposites. This inaugural study on carbyne-filled polymer composites also reports a minor but distinct increase (an order of magnitude) in the electrical conductivity for c-DWNTs filled epoxy nanocomposites compared to DWNT filled epoxy nanocomposites.
Original languageEnglish
Pages (from-to)29-34
Number of pages6
JournalNanoWorld Journal
Volume6
Issue number2
DOIs
Publication statusPublished - 16 Jul 2020

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