Dispersion and Performance Properties of Carbon Nanotubes (CNTs) Based Polymer Composites: A Review

Bhagwan F. Jogi, Mayur Sawant, Madan Kulkarni, Prakash K. Brahmankar

Department of Mechanical Engineering, Dr. Babasaheb Ambedkar Technological University, Lonere, India.

DOI: 10.4236/jeas.2012.24010                

Abstract

Carbon nanotubes (CNTs) based polymer composites have variety of engineering applications (electromagnetic shielding, antistatic coatings, high-strength low-density corrosion-resistant components, lightweight energy storage and many more); due to their excellent mechanical, electrical, chemical, magnetic, etc. properties. In the polymer nanocomposites CNTs are dispersed in the polymeric matrix. However the dispersion may be uniform or may not be uniform. The biggest challenge is the effective dispersion of individual CNTs in the polymer matrices, as CNTs tends to form clusters and bundles due to strong van der Waals’ forces of attraction. The aggregated structure continue until physical (Mechanical) or chemical modification (Encapsulation/surface modification) of CNTs. Few modification methods such as vigorous mixing of the polymers damages CNTs structure, and may hinder their properties. But these problems can be overcome by mechanical or chemical modification of CNTs surfaces. In the chemical modification, the modifier or the long tail surfactant may encapsulate and/or partially wrap the CNTs surfaces. In this review, recent work on CNTs based polymer nanocomposite is carried out with few modifiers/encapsulating agents. Incorporation of CNTs in polymer matrix changes the performance properties such as tensile strength, tensile modulus, elongation at break, toughness, Dynamic mechanical thermal analysis (DMTA), etc. The phase morphology of the composite materials throws light on the properties of CNTs based polymer nanocomposite. Moreover phase morphology may be directly correlated with the behavior of the material, hence reviewed here through transmission electron microscopy (TEM) and scanning electron microscopy (SEM). Furthermore review is also carried out on the non-isothermal crystallization (DSC) and rheology of CNTs polymer nanocomposite.

Keywords

Carbon Nanotubes (CNTs); Encapsulation/Surface Modification; Transmission Electron Microscopy (TEM); Mechanical Properties; Crystallization

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	P. M. Ajayan and J. M. Tour, “Nanotube Composites,” Nature, Vol. 447, No. 7148, 2007, pp. 1066-1068. doi:10.1038/4471066a
[2]	M. Moniruzzaman and K. I. Winey, “Review Polymer Nanocomposites Containing Carbon Nanotubes,” Macromolecules, Vol. 39, No. 16, 2006, pp. 5194-5205. doi:10.1021/ma060733p
[3]	P. M. Ajayan, “Nanotubes from Carbon,” Chemical Reviews, Vol. 99, No. 7, 1999, pp. 1787-1799. doi:10.1021/cr970102g
[4]	R. H. Baughman, A. A. Zakhidov and W. A. de Heer, “Carbon Nanotubes—The Route toward Applications,” Science, Vol. 297, No. 5582, 2002, pp. 787-792. doi:10.1126/science.1060928
[5]	A. M. K. Esawi and M. M. Farag, “Carbon Nanotube Reinforced Composites: Potential and Current Challenges,” Materials and Design, Vol. 28, No. 9, 2007, pp. 2394-2401. doi:10.1016/j.matdes.2006.09.022
[6]	J. B. Bai and A. Allaoui, “Effect of the Length and the Aggregate Size of MWNTs on the Improvement Efficiency of the Mechanical and Electrical Properties of Nanocomposites-Experimental Investigation,” Composites: Part A, Vol. 34, No. 8, 2003, pp. 689-694. doi:10.1016/S1359-835X(03)00140-4
[7]	S. B. Kharchenko, J. F. Douglas1, J. Obrzut 1, E. A. Grulke and K. Migler, “Flow-Induced Properties of Nanotube-Filled Polymer Materials,” Nature Materials, Vol. 3, No. 8, 2004, pp. 564-568. doi:10.1038/nmat1183
[8]	H. Pernot, M. Baumert, F. Court and L. Leibler, “Polymer Blends,” Nature Materials, Vol. 1, 2002, pp. 54-58. doi:10.1038/nmat 711
[9]	Y.-H. Liao, “Manufacturing Process of Nanotube/Nanofiber Nanocomposite: Dispersion and Alignment Study,” Ph.D. Thesis, The Florida State University, Fort Lauderdale, 2007.
[10]	J. L. Carbon, “Nanotube/Polymer Composites and Novel Micro- and Nano- Structured Electrospun Polymer Materials,” Ph.D. Thesis, Georgia Institute of Technology, Atlanta, 2007.
[11]	S. Bose, A. R. Bhattacharyya, A. R. Kulkarni and P. P?tschke, “Electrical, rheological and Morphological Studies in Co-Continuous Blends of Polyamide6 and Acrylonitrile-Butadiene-Styrene with Multiwall Carbon Nanotubes Prepared by Melt Blending,” Lectrical, Rheological and Morphological Studies in Co-Continuous, Vol. 69, No. 3-4, 2008, pp. 4202-4230.
[12]	S. Bose, A. R. Bhattacharyya, L. H?u?ler and P. P?tschke, “Influence of Multiwall Carbon Nanotubes on the Mechanical Properties and Unusual Crystallization Behaviour in Melt-Mixed Co-Continuous Blends of Polyamide6 and Acrylonitrile-Butadienestyrene,” Polymer Engineering & Science, Vol. 49, No. 8, 2008, pp. 3010-3022.
[13]	M. Abdel-Goad and P. Potschke, “Rheological Characterization of Melt Processed Polycarbonate-Multiwalled carbon Nanotube Composites,” Journal of Non-Newtonian Fluid Mechanics, Vol. 128, No. 1, 2005, pp. 2-6. doi:10.1016/j.jnnfm.2005.01.008
[14]	A. R. Bhattacharyyaa, 1, T. V. Sreekumara, T. Liua, S. Kumara, L. M. Ericsonb, R. H. Haugeb and R. E. Smalleyb, “Crystallization and Orientation Studies in Polypropylene/Single Wall Carbon Nanotube Composite,” Polymer, Vol. 44, No. 8, 2003,pp. 2373-2377.
[15]	P. P?tschke, A. R. Bhattacharyya and A. Janke, “Carbon Nanotube-Filled Polycarbonate Composites Produced by Melt Mixing and Their Use in Blends with Polyethylene,” Carbon, Vol. 42, No. 5-6, 2004, pp. 965-969. doi:10.1016/j.carbon.2003.12.001
[16]	A. R. Bhattacharya, P. P?tschke, M. Abdel-Goad and D. Fischer, “Effect of Encapsulated SWNT on the Mechanical Properties of Melt Mixed PA12/SWNT Composites,” Chemical Physics Letters, Vol. 392, No. 1-3, 2004, pp. 28-37. doi:10.1016/j.cplett.2004.05.045
[17]	T. Kashiwagi, J. Fagan, J. F. Douglas and K. Yamamoto, “Relationship between Dispersion Metric and Properties of PMMA/SWNT Nanocomposites,” Polymer, Vol. 48, No. 16, 2007, pp. 4855-4866.
[18]	Y. Li, H. Shimizu, “Co-Continuous Polyamide 6 (PA6)/Acrylonitrile-Butadiene-Styrene (ABS) Nanocomposites,” Macromolecular Rapid Communications, Vol. 26, No. 9, 2005, pp. 710-715. doi:10.1002/marc.200400654
[19]	M. A. L. Manchado, L. Valentini, J. Biagiotti and J. M. Kenny, “Thermal and Mechanical Properties of Single-Walled Carbon Nanotubes-Polypropylene Composites Prepared by Melt Processing,” Carbon, Vol. 43, No. 7, 2005, pp.1499-1505. doi:10.1016/j.carbon.2005.01.031
[20]	S. Bose, A. R. Bhattacharyya, P. V. Kodgire and A. Misra, “Fractionated Crystallization in PA6/ABS Blends: Influence of a Reactive Compatibilizer and Multiwall CNT,” Polymer, Vol. 48, No. 1, 2007, pp. 356-362. doi:10.1016/j.polymer.2006.11.019
[21]	V. J. Triacca, S. Ziaee, J. W. Barlow, H. Keskula and D. R. Paul, “Reactive Compatibilization of Blends of Nylon 6 and ABS Materials,” Polymer, Vol. 32, No. 8, 1994, pp. 1401-1413. doi:10.1016/0032-3861(91)90420-N
[22]	M. Moniruzzaman, J. Chattopadhyay, W. E. Billups and K. I. Winey, “Tuning the Mechanical Properties of SWNT/ Nylon 6,10 Composites with Flexible Spacers at the Interface,” Nano Letters, Vol. 7, No. 5, 2007 pp. 1178-1185. doi:10.1021/nl062868e
[23]	P. Liu, “Modifications of carbon nanotubes with Polymers,” European Polymer Journal, Vol. 41, No. 11, 2005 pp. 2693-2703. doi:10.1016/j.eurpolymj.2005.05.017
[24]	S. Bose, A. R. Bhattacharyya, R. A. Khare, A. R. Kulkarni, T. U. Patro and P. Sivaraman, “Tuning the Dispersion of Multiwall CNTs in Co-Continuous Polymer Blends: A Generic Approach,” Nanotechnology, Vol. 19, No. 33, 2008, pp. 3304-3312.
[25]	P. P?tschke, A. R. Bhattacharyya and A. Janke, “Morphology and Electrical Resistivity of Melt Mixed Blends of Polyethylene and Carbon Nanotube Filled Polycarbonate,” Polymer, Vol. 44, No. 26, 2003, pp. 8061-8069. doi:10.1016/j.polymer.2003.10.003
[26]	T. Liu, I. Y. Phang, L. Shen, S. Y. Chow and W. D. Zhang, “Morphology and Mechanical Properties of MWNT Reinforced Nylon 6 Composites,” Macromolecules, Vol. 37, No. 19, 2004 pp. 7214-7222. doi:10.1021/ma049132t
[27]	J. Sandler, M. S. P. Shaffer, T. Prasse, W. Bauhofer, K. Schulte and A. H. Windle, “Development of a Dispersion Process for Carbon Nanotubes in an Epoxy Matrix and the Resulting Electrical Properties,” Polymer, Vol. 40, No. 21, 1999, pp. 5967-5971. doi:10.1016/S0032-3861(99)00166-4
[28]	S. Kumar, H. Doshi, M. Srinivasarao, J. O. Park and D. A. Schiraldi, “Fibers from Polypropylene/Nano Carbon Fiber Composites,” Polymer, Vol. 43, No. 5, 2002, pp. 1701-1703. doi:10.1016/S0032-3861(01)00744-3
[29]	B. Safadi, R. Andrews and E. A. Grulke, “Multiwalled Carbon Nanotube Polymer Composite: Synthesis and Characterization,” Journal of Applied Polymer Science, Vol. 84, No. 14, 2002, pp. 2660-2669. doi:10.1002/app.10436
[30]	B. F. Jogi, “Structure Property Relationship Studies on Carbon Nanotubes Based Polymer Blends,” PhD Thesis, Indian Institute of Technology Bombay, Mumbai, 2012.
[31]	O. Meincke, D. Kaempfer, H. Weickmann, C. Friedrich, M. Vathauer and H. Warth, “Mechanical Properties and Electrical Conductivity of Carbon-Nanotube Filled Polyamide-6 and Its Blends with Acrylonitrile/Butadiene/Styrene,” Journal of Polymer Science, Vol. 45, No. 3, 2004, pp. 739-748.
[32]	Z. X. Jin, K. P. Pramoda and S. H. Goh, “Dynamic Mechanical Behaviour of Melt Mixed Polymer Nanocomposite,” Chemical Physics Letter, Vol. 337, 2001, pp. 41-47.
[33]	P. V. Kodgire, A. R. Bhattacharyya, S. Bose, N. Gupta, A. R. Kulkarni and A. Misra, “Control of Multiwall Carbon Nanotubes Dispersion in Polyamide6 Matrix: An Assessment through Electrical Conductivity,” Chemical Physics Letters, Vol. 432, No. 4-6, 2006, pp. 480-485. doi:10.1016/j.cplett.2006.10.088
[34]	S. B. Jagtap. R. K. Kushwaha and D Ratna, “Poly(Ethylene Oxide)-Multiwall Carbon Nanotube Composites: Effect of Dicarboxylic Acid Salt-Based Modifiers,” Applied Polymer Science, 2012, pp. 38112-38121. doi:10 1002/APP
[35]	R. A. Khare, A. R. Bhattacharyya, A. R. Kulkarni, M. Saroop and A. Biswas, “The State of Dispersion of MWNT in PP/ABS Blends: Investigating the Morphological and Electrical Properties,” International Conference on Advanced Materials (ICAM 2008), Kottayam, 18-21 February 2008. www.chemistry-conferences.com/2008/02/18-21 Conference on - 5k
[36]	M. A. L. Manchado, J. Biagiotti, L. Valentini and J. M. Kenny, “Dynamic Mechanical and Raman Spectroscopy Studies on Interaction between Single-Walled Carbon Nanotubes and Natural Rubber,” Journal of Applied Polymer Science, Vol. 92, No. 5, 2004, pp. 3394-3400. doi:10.1002/app.20358
[37]	S. Bose, A. R. Bhattacharyya, L. H?u?ler and P. P?tschke, “Influence of Multiwall Carbon Nanotubes on the Mechanical Properties and Unusual Crystallization Behaviour in Melt-Mixed Co-Continuous Blends of Polyamide6 and Acrylonitrile-Butadienestyrene,” Polymer Engineering & Science, Vol. 49, No. 8, 2008, pp. 3010-3022.