Abstract
The fracture behavior of polypropylene (PP) and its composites was studied as a function of concentration of multiwall carbon nanotubes (MWCNT) and modified montmorillonite (m-MMT). SAXS and WAXS (Small/Wide Angle X-ray Scattering) techniques were used to monitor the morphological changes (i.e. nanocomposite structure and crystalline morphology) caused by various nanoparticle concentrations and polymer uniaxial stretching deformation. The effect of nanoparticle nature was also investigated. The mechanical analysis shows a great effect of nanoclay concentration on the PP deformation, while uniaxial stretching of the PP/MWCNT nanocomposites was less affected by carbon nanotubes concentration. The SAXS and WAXS analysis of stretched samples indicated that the pure polypropylene and nanocomposites with low nanoparticles concentrations (1 wt/wt%) developed a fracture governed by shear yielding mechanism, while PP nanocomposites with higher concentrations of carbon nanotubes and nanoclay showed a crazing and microcraking fracture mechanism. On the other hand, different chemical nature of MWCNT and m-MMT did not affect the fracture mechanism of polypropylene at low nanoparticles concentrations.
Similar content being viewed by others
References
M. Ouederni and P. J.Phillips, J. Polym. Sci: Polym. Phys. 33,1313 (1995).
B. Li, G. Gong, B-H. Xie, W. Yang and M-B. Yang, J. Appl. Polym. Sci, 109, 1161 (2008).
M. Yuan, J. A. Galloway, R. J. Hoffman and S. Bhatt, Polym. Eng. Sci. 51, 94 (2011).
F. Sadeghi, S. H. Tabatabaei, A. Ajji and P. J. Carreau, Can. J. Chem. Eng. 88, 1091 (2010)
D. Arencón and J. I. Velasco. Materials, 2, 2046 (2009).
A. J. Kinloch and R. J. Young, Fracture Behavior of Polvmers, edited by R. J. Young,(Elsevier Applied Science Publishers, London, 1983), p. 261
T.A. Oswald and G. Menges, Materials Science of Polymers for Engineers, 2nd ed. (Hanser:Munich, Germany, 2003), p. 622.
B. Z. Jang, D. R. Uhlmann and J. B. Vander Sande, Polym. Eng. Sci. 25, 98 (1985).
I. Narisawa, Polym. Eng. Sci. 27, 41 (1987).
I. Narisawa and A. F. Yee, Crazing and Fracture of Polymers. Materials Science and Technology (Wiley-VCH Verlag GmbH & Co KGa, 2006), p.701.
N. Stribeck, U. Nöchel, S. S. Funari, T. Schubert, and A. Timmann, Macromol. Chem. Phys. 209, 1992 (2008).
P. T. S. Dijkstra, D. J. Vand Dijk and J. Huétink, Polym. Eng. Sci. 42, 152 (2002)
D.H. Kim, P.D. Fasulo, W.R. Rodgers, D.R. Paul, Polymer, 48, 5308 (2007).
K. Kanny, P. Jawahar, V.K, Moodley, J. Mater. Sci., 43, 7230 (2008).
F. J. Medellín-Rodríguez, M. Mata-Padilla, S. Sánchez-Valdes, S. Vega-Díaz, O. Dávalos-Montoya, J. Polym. Sci. Part B: Polym. Phys. 46, 2188 (2008).
D. Kawakami, B. S. Hsiao, Ch. Burger, S. Ran, C. Avila-Orta, I. Sics, T. Kikutani, K. I. Jacob and B. Chu, Macromolecules, 38, 91 (2005)
F.J. Medellín-Rodríguez, J.M. Mata-Padilla, B.S. Hsiao, M.A. Waldo-Mendoza, E. Ramírez-Vargas, S. Sánchez-Valdes, Polym. Eng. Sci., 47, 1889 (2007).
H. Kobayashi, M. Shioya, T. Tanaka, T. Irisawa, S. Sakurai, K. Yamamoto, J Appl Polym Sci 106, 152 (2007).
Ch. He, T. Liu, W. Ch. Tjiu, H-J. Sue and A. Yee, Macromolecules, 41, 193 (2008).
A. Almendarez-Camarillo and N. Stribeck, Fibr. Text. East. Eur., 13, 27 (2005).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Mata-Padilla, J., Ávila-Orta, C.A., Medellín-Rodríguez, F.J. et al. Study of Fracture Behavior of Polypropylene/MWCNT and Polypropylene/m-MMT Nanocomposites by Small Angle X-ray Scattering (SAXS). MRS Online Proceedings Library 1371, 75–80 (2011). https://doi.org/10.1557/opl.2012.163
Published:
Issue Date:
DOI: https://doi.org/10.1557/opl.2012.163