Influence of Layered Nanofillers on Percolation Properties of Systems Based on Polypropylene Glycol and Carbon Nanotubes

By using impedance spectroscopy and optical microscopy methods the investigation of electrical properties of systems based on polypropylene glycol was conducted. It was shown that adding exfoliated layered fillers to the system shifts percolation threshold to low concentration of nanotubes. Analysis of critical indexes of conductivity for investigated systems has shown that such low values of t (1,19—1,43) mean that the formation of conductive network because of strong interaction between laponite and single nanotubes is not a statistic percolation process and distribution of filler particles is nonuniform. Thus, incorporation of third component leads to significant change of percolation properties of filled system, because of its strong interaction with conductive particles. Moreover, insertion of third component leads to significant enhancement of distribution of nanotubes in the bulk of polymer matrix and can improve a number of properties of system filled with nanosized particles polymers.

Publication year: 
2014
Issue: 
3
УДК: 
539.266+536.63
С. 111–117., Іл. 5. Бібліогр.: 30 назв.
References: 

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References [transliteration]: 

1. A.P. Yu et al., , “Incorporation of highly dispersed single-walled carbon nanotubes in a polyimide matrix”, Com¬pos. Sci. Technol., vol. 66, pp. 1190–1197, 2006.
2. H.W.C. Postma et al., “Carbon nanotube single-electron transistors at room temperature”, Science, vol. 293, pp. 76–79, 2001.
3. E. Pop et al., “Thermal conductance of an individual single-wall carbon nanotube above room temperature”, Nano Lett., vol. 6, pp. 96–100, 2006.
4. J.N. Coleman et al., “Mechanical Reinforcement of Polymers Using Carbon Nanotubes”, Adv. Mater., vol. 18, pp. 689–706, 2006.
5. J. Zhang et al., “Electrical and dielectric behaviors and their origins in the three-dimensional polyvinyl alcohol/ MWCNT composites with low percolation threshold”, Carbon., pp. 1311–1320, 2009.
6. J.L. Bahr and J.M. Tour, “Covalent chemistry of single-wall carbon nanotubes”, J. Mater. Chem., vol. 12, pp. 1952–1958, 2002.
7. H. Park et al., “Effects of sidewall functionalization on conducting properties of single wall carbon nanotubes”, Nano Lett., vol. 6, pp. 916–919, 2006.
8. L. Liu and J.C. Grunlan, “Clay assisted dispersion of carbon nanotubes in conductive epoxy nanocomposites”, Adv. Funct. Mater., vol. 17, pp. 2343–2348, 2007.
9. A. Bakandritsos et al., “Iron Changes in Natural and Fe(III) Loaded Montmorillonite during Carbon Nanotube Growth”, Chem. Mater., vol. 17, pp. 3468–3474, 2005.
10. W.D. Zhang et al., “Growth of carbon nanotubes on clay: unique nanostructured filler for high-performance poly¬mer nanocomposites”, Adv. Mater., vol. 18, pp. 73–77, 2006.
11. J. Feng and Q. Wang, “Fabrication of nanocomposite powders of carbon nanotubes and montmorillonite”, J. Amer. Ceramic Soc., vol. 91, no. 3, pp. 975–978, 2008.
12. Q.-L. Mei et al., “Rheology and curing characteristics of MWCNTs-OMMT epoxy composites”, Polym. Mater. Sci. and Eng., vol. 25, no. 6, pp. 49–52, 2009.
13. Y.-Q. Zhao et al., “Fabrication and properties of clay-supported carbon nanotube/poly (vinyl alcohol) nanocom-posites”, Polym. Compos., vol. 30, no. 6, pp. 702–707, 2009.
14. M.D. Gawryla et al., “PH tailoring electrical and mecha¬nical behavior of polymer-clay-nanotube aerogels”, Macro¬mol. Rapid Commun., vol. 30, no. 19, pp. 1669–1673, 2009.
15. M.O. Lisunova et al., “The influence of organophilic clay on field electron emission uniformity and lifetime of screen printed carbon nanotube film”, Thin Solid Films, vol. 518, no. 1, pp. 279–283, 2009.
16. S. Pack et al., “Segregation of carbon nanotubes/ organoclays ren-dering polymer blends self-extingui¬shing”, Macromol., vol. 42, no. 17, pp. 6698–6709, 2009.
17. Z. Han et al., “Clay minerals affect the stability of surfactant-facilitated carbon nanotube suspensions”, Environ. Sci. and Tech., vol. 42, no. 18, pp. 6869–6875, 2008.
18. Y.-F. Lan and J.-J. Lin, “Observation of carbon nanotube and clay micellelike microstructures with dual dispersion property”, J. Phys. Chem. A., vol. 113, no. 30, pp. 8654–8659, 2009.
19. Z. Wang et al., “A simplemethod for preparing carbon nanotubes/clay hybrids in water”, J. Phys. Chem. C., vol. 113, no. 19, pp. 8058–8064, 2009.
20. Q. Mei et al., “Synergistic effect of multi-wall carbon nanotube and organophilic montmorillonite on toughening epoxy resin”, Acta Mater. Compos. Sinica., vol. 25, no. 6, pp. 146–151, 2008.
21. Lysenkov E.A., Homza I͡u.P., Klepko V.V. ta in. Struktura bahatosharovykh karbonanotrubok ta nanokompozytiv na ïkh osnovi // Fiz. i khimii͡a tverd. tila. – 2010. – 11, # 2. – S. 361–366.
22. A. Kyritsis et al., “Dielectric Relaxation Spectroscopy in Poly(hydroxyethyl Acrylates) / Water Hydrogels”, J. of Polymer Sci.: Part B: Polymer Physics., vol. 33, pp. 1737–1750, 1995.
23. Lysenkov E.A., Homza I͡u.P., Klepko V.V. ta in. Vplyv pryrody mineral′nykh napovni͡uvachiv na strukturu ta vlastyvosti nanokompozytiv na osnovi polietylenhlikoli͡u // Nanosys., nanomater., nanotekhnol. – 2010. – 8, # 3. – S. 687–692.
24. K.E. Strawhecker and E. Manias, “Crystallization behavior of poly(ethylene oxide) in the presence of Na montmo¬rillonite fillers”, Chem. Mater., vol. 15, pp. 844–849, 2003.
25. M.Y. Hikosaka et al., “Montmorillonite (MMT) effect on the structure of poly(oxyethylene) (PEO)-MMT nanocomposites and silica-PEO-MMT hybrid materials”, J. Non-Crystal. Sol., vol. 352, pp. 3705–3710, 2006.
26. E.A. Lysenkov et al., “Percolative properties of systems based on polypropylene glycol and carbon nanotubes”, Ukr. Phys. J., vol. 58, no. 4, pp. 378–384, 2013.
27. D. Stauffer, A. Aharony, Introduction to percolation theory. London: Taylor and Francis, 1994, 318 р.
28. G.E. Archie, “The electrical resistivity log as an aid in determining some reservoir characteristics”, Petrol. Trans. AIME, vol. 146, pp. 54–56, 1942.
29. B.E. Kilbride et al., “Experimental observation of scaling laws for alternating current and direct current conduc¬tivity in polymer-carbon nanotube composite thin films”, J. Appl. Phys., vol. 92, no. 7, pp. 4024–4030, 2002.
30. J.K.W. Sandler et al., “Ultra-low electrical percolation threshold in carbon nanotube – epoxy composites”, Polymer, vol. 44, pp. 5893–5899, 2003.

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