Publication Type : Journal Article
Publisher : Journal of Composites Part A Applied Science and Manufacturing
Source : Journal of Composites Part A Applied Science and Manufacturing, Volume 90, p.147-160 (2016)
Url : https://www.sciencedirect.com/science/article/abs/pii/S1359835X16302196
Keywords : A. Nano composites, B. Thermomechanical properties, C. Mechanical properties, D. Thermal analysis
Campus : Coimbatore
School : Department of Aerospace Engineering, School of Engineering
Center : Center for Excellence in Advanced Materials and Green Technologies
Department : Aerospace, Chemical, Mechanical Engineering
Verified : No
Year : 2016
Abstract : In this investigation, Polyetherimide (PEI) reinforced with multi-walled carbon nanotube (MWCNT) using novel melt blending technique. Surface of MWCNTs are modified by acid treatment as well as by plasma treatment. PEI nano composites with 2 wt % treated MWCNT shows about 15 % improvement in mechanical properties when compared to unfilled PEI. The thermal decomposition kinetics of PEI/MWCNT nano composites has been critically analyzed by using Coats – Redfern model. The increase in activation energy for thermal degradation by 699 kJ /mol for 2 wt% MWCNT implies improvement in the thermal properties of PEI. Studies under Fourier Transform Infrared Spectroscopy (FTIR) and Transmission Electron Microscopy (TEM) depict significant interfacial adhesion with uniform dispersion of MWCNT in polymer matrix due to surface functionalization. 0.5 wt% chemically modified MWCNT shows typical alignment of MWCNT. There is a significant improvement in mechanical properties and thermal properties for surface functionalized MWCNT reinforced.
Cite this Research Publication : Mohan Kumar Pitchan, Shantanu Bhowmik, Dr. Meera Balachandran, and Abraham, M., “Effect of Surface Functionalization on Mechanical Properties and Decomposition Kinetics of High Performance Polyetherimide/MWCNT Nano Composites”, Journal of Composites Part A Applied Science and Manufacturing, vol. 90, pp. 147-160, 2016.