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

C—Journal of Carbon Research

Ye Chen¹  Jing Tao¹  Alaa Ezzeddine¹  Remi Mahfouz²  Abdullah Al-Shahrani²  Gasan Alabedi²  Niveen M. Khashab¹ 

[1] Smart Hybrid Materials (SHMs), Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia; E-Mails:;Oil & Gas Network Integrity Research Team, Research and Development Center, Saudi Aramco, Dhahran 31311, Saudi Arabia; E-Mails:

关键词: polyetherimide;    multi-walled carbon nanotubes;    octadecylamine;    mechanical properties;    electrical properties;   

DOI  :  10.3390/c1010058

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.