-Ahmed, D.S., Haider, A.J. and Mohammad, M.R. 2013. Comparison of functionalization of multi-walled carbon nanotubes treated by olive oil and nitric acid and their characterization. Energy Procedia 36, 1111-1118.
-American Society of Testing and Material, 2014. ASTM annual book of testing methods, no. 10. Philadelphia, PA., USA.
-Bikiaris, D., Vassiliou, A., Chrissafis, K., Paraskevopoulos, K.M., Jannakoudakis, A., Docoslis, A., 2008. Effect of acid treated multi-walled carbon nanotubes on the mechanical, permeability, thermal properties and thermo-oxidative stability of isotactic polypropylene. Polymer Degradation and Stability, 93; 952- 967.
-Huang, J., Rodrigue, D., 2013. The effect of carbon nanotube orientation and content on the mechanical properties of polypropylene based composites. Materials and Design, 55; 653-663.
-Madeshwaran, S.R., Kwon, J.K., Cho, J.W. Functionalized multi-walled Carbon Nanotubes with Heyperbranched Aromatic Polyamide for Poly (methyl methacrylate)composites. Fibers and Polymers. 2013. Vol14. No2. 182-187
-Mahajan, A., Kingon, A., Kukovecz, A., Konya Z., Vilarinho, P.M., 2013. Studies on the thermal decomposition of multiwall carbon nanotubes under different atmospheres. Materials Letters. 90; 165- 168.
-May-Pat, F.A., Yazdani-Pedram, M., Cauich-Rodriguez, J.V., 2011. Mechanical properties ofPET composites using multi-walled carbon nanotubes functionalized by inorganic and itaconic acids. Express Polymer Letters. Vol.6. No 2. (2012); 96-106
-Osorio, A.G., Silveira, I.C.L., Bueno, V.L., Bergman C.P. 2008. H2SO4/HNO3/HCL – Functionalizanion and its effect on dispersion of carbon nanotubes in aqueous media. Applied Surface Science, 225; 2485-2489
-Rahmanian,S., Suraya,A.R., Shazed,M.A., Zahari,R., Zainudin,E.S., 2013. Mechanical characterization of epoxy composite with multiscale reinforcements: Carbon nanotubes and short carbon fibers. Materials and Design,60; 34-40.
-Sahoo, N.G., Rana, S., Cho, J.W., Li, L., Chan, S.H., 2010. Polymer nanocomposites based on functionalized carbon naotubes. Prog in polymer Sci,35; 837- 867.
-Shimamura, Y., Oshima, K., Tohgo, K., Fujii, T., Sirasu, K., Yamamoto, G., Hashida, T., Goto, K., Ogasawara, T., Naito, K., Nakano, T., Inoue, Y., 2013. Tensile mechanical properties of carbon nanotube/epoxy composite fabricated by pultrusion of carbon nanotube spun yarn perform. Composites: Part A,62; 32-38.
-Stobinski, L., Lesiak, B., Kover, L., Toth, J., Biniak, S., Trykowski, G., Judek, J.,2010. Multiwall carbon nanotubes purification and oxidation by nitric acid studied by the FTIR and electron spectroscopy methods. Journal of Alloys and compounds.501; 77-84.