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Open AccessArticle

Superior Performance Nanocomposites from Uniformly Dispersed Octadecylamine Functionalized Multi-Walled Carbon Nanotubes

1
Smart Hybrid Materials (SHMs), Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
2
Oil & Gas Network Integrity Research Team, Research and Development Center, Saudi Aramco, Dhahran 31311, Saudi Arabia
*
Author to whom correspondence should be addressed.
Academic Editor: Vijay Kumar Thakur
C 2015, 1(1), 58-76; https://doi.org/10.3390/c1010058
Received: 21 October 2015 / Revised: 23 November 2015 / Accepted: 1 December 2015 / Published: 8 December 2015
(This article belongs to the Special Issue Surface Modification of Carbon Nanotubes)
Polyetherimide (PEI) is a widely applied as engineering plastic in the electronics, aerospace, and automotive industries but the disadvantages of extremely low conductivity, atmospheric moisture absorption, and poor fluidity at high temperature limits its application. Herein, commercial multi-walled carbon nanotubes (MWCNTs) were modified with a long alkyl chain molecule, octadecylamine (ODA), to produce a uniform dispersion in commercial PEI matrices. Both covalent and noncovalent modification of MWCNTs with ODA, were prepared and compared. Modified MWCNTs were incorporated in PEI matrices to fabricate nanocomposite membranes by a simple casting method. Investigating mechanical properties, thermal stability, and conductivity of the polyetherimide (PEI)/MWCNT composites showed a unique combination of properties, such as high electrical conductivity, high mechanical properties, and high thermal stability at a low content of 1.0 wt % loading of ODA modified MWCNTs. Moreover, electrical resistivity decreased around 10 orders of magnitude with only 0.5 wt % of modified MWCNTs. View Full-Text
Keywords: polyetherimide; multi-walled carbon nanotubes; octadecylamine; mechanical properties; electrical properties polyetherimide; multi-walled carbon nanotubes; octadecylamine; mechanical properties; electrical properties
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Chen, Y.; Tao, J.; Ezzeddine, A.; Mahfouz, R.; Al-Shahrani, A.; Alabedi, G.; Khashab, N.M. Superior Performance Nanocomposites from Uniformly Dispersed Octadecylamine Functionalized Multi-Walled Carbon Nanotubes. C 2015, 1, 58-76.

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