S. Babel and T. A. Kurniawan, "Low-cost adsorbents for heavy metals uptake from contaminated water," Hazardous Materials, vol. 97, pp. 219-243, 2003.
M. I. Carretero, "Clay minerals and their bene?cial effects upon human health," Applied Clay Science, vol. 21, pp. 155-163, 2002.
J. H. Choy, S. J. Choi, J. M. Oh, and T. Park, "Clay minerals and layered double hydroxides for novel biological applications," Applied Clay Science, vol. 36, pp. 122-132, 2007.
H. H. Murray, "Traditional and new applications for kaolin, smectite, and palygorskite: A general overview," Applied Clay Science, vol. 17, pp. 207-221, 2000.
Z. P. Zhang, L. B. Liao, Z. G. Xia, and C. Li, "Montmorillonite-carbon nanocomposites with nanosheet and nanotube structure: Preparation, characterization and structure evolution," Applied Clay Science, vol. 55, pp. 75-82, 2012.
L. Yu, K. Dean, and L. Li, "Polymer blends and composites from renewable resources," Prog. Polym. Sci., vol. 31, pp. 576-602, 2006.
K. Wang, L. Chen, M. Kotaki, and C. He, "Microstructure and thermal mechanical properties of epoxy/crude clay nanocomposites," Applied Science and Manufacturing, vol. 38, pp. 192-197, 2007.
K. Podgorski, H. Kaczmarek, and A. Podgorski, "The effect of UV-irradiaiton on poly (Vinyl Alcohol) composites with montmorillonite," Photochem. Photobiol, vol. 191, pp. 209-215, 2007.
M. Alexandre and P. Dubois, "Polymer-layered silicate nanocomposites: Preparation, properties and uses of a new class of materials," Materials Science and Engineering R-Reports, vol. 28, pp. 1-63, 2000.
S. Sinha Ray and M. Okamoto, "Polymer/layered silicate nanocomposites: A review from preparation to processing," Progress in Polymer Science, vol. 28, pp. 1539-1641, 2003.
Y. Kojima, A. Usuki, M. Kawasumi, A. Okada, T. Kurauchi, and O. Kamigaito, "One-pot synthesis of nylon 6-clay hybrid," Polym, J. Sci. Pol. Chem., vol. 31, pp. 1755-1758, 1993.
Z. Wang and T. J. Pinnavaia, "Hybrid organic–inorganic nanocomposites: Exfoliation of magadiite nanolayers in an elastomeric epoxy polymer," Chem. Mater., vol. 10, pp. 1820-1826, 1998.
S. D. Burnside and E. P. Giannelis, "Synthesis and properties of new poly (Dimethylsiloxane) nanocomposites," Chem. Mater., vol. 7, pp. 1597-1600, 1995.
B. A. Bhanvase, D. V. Pinjari, P. R. Gogate, S. H. Sonawane, and A. B. Pandi, "Synthesis of exfoliated poly (Styrene-co-methyl Methacrylate) / montmorillonite nanocomposite using ultrasound assisted in situ emulsion copolymerization," Chemical Engineering Journal, vol. 20, pp. 181-182, 2012.
X. D. Nie, A. Adalati, J. Du, H. H. Liu, S. M. Xu, and J. D. Wang, "Preparation of amphoteric nanocomposite hydrogels based on exfoliation of montmorillonite via in-situ intercalative polymerization of hydrophilic cationic and anionic monomers," Applied Clay Science, vol. 100, pp. 132–137, 2014.
Z. P. Zhang, L. B. Liao, and Z. G. Xia, "Ultrasound-assisted preparation and characterization of anionic surfactant modified montmorillonites," Applied Clay Science, vol. 50, pp. 576-581, 2010.
F. Chivrac, E. Pollet, and L. P. Dol, "Avérous, Starch-based nano-biocomposites: Plasticizer impact on the montmorillonite exfoliation process," Carbohydrate Polymers, vol. 79, pp. 941-947, 2010.
Z. B. Wang, Xin Wang, G. C. Li, and Z. K. Zhang, "Enhanced exfoliation of montmorillonite prepared by hydrothermal method," Applied Clay Science, vol. 42, pp. 146-150, 2008.
A. F. Aouada, H. C. Lui, Z. Mattoso, and E. Longo, "New strategies in the preparation of exfoliated thermoplastic starch–montmorillonite nanocomposites," Industrial Crops and Products, vol. 34, pp. 1502-1508, 2011.
X. Wang and Y. D. Li, "Solution-based synthetic strategies for 1-D nanostructures," Inorganic Chemistry, vol. 45, pp. 7522-7534, 2006.
P. R. Gogate, "Cavitational reactors for process intensi?cation of chemical processing applications," Chem. Eng. Process, vol. 47, pp. 515-527, 2008.
S. H. Tian, "The standard of the physical and chemical properties measurement of nonmetal minerals," Occupation Standard DZG93-06, Standardization Administration of the P. R. C.,Beijing China, 2006.
M. L. Jackson, Soil chemical analysis-advanced course. Wisconsin: Department of Soils, University of Wisconsin, 1969.
B. H. Sheldrick and C. Wang, Particle size distribution. In: Carter MR, (Eds). Soil sampling and methods of analysis, Canadian society of soil science. Boca Ration: F. L. Lewis Publishers, Division of CRC Press, 1993.
F. C. Boliren and D. R. Buffma, Absorption and scattering of light by small particles. Weinheim, German: Wiley-VCH Verlag GmbH & Co, 2004.
F. Bergaya, B. K. G. Theng, and L. G., Handbook of clay science. Amsterdam: Elsevier Science, 2006.
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Hongliang Li , Yunliang Zhao , Shaoxian Song , Yuri Nahmad (2015). Comparison of Ultrasound Treatment with Mechanical Shearing for Montmorillonite Exfoliation in Aqueous Solutions. Journal of Minerals and Materials Research, 2(1): 1-12. DOI: 10.18488/journal.86/2015.2.1/18.104.22.168
The exfoliated nanosheet of montmorillonite (MMT) mineral is a superior material applied in many fields especially in strengthening biodegradable polymers. The exfoliation with ultrasound treatment has been studied in this work compared with mechanical shearing through the measurements of laser size analysis, centrifugal classification and AFM. The results have shown that ultrasound treatment allowed a lower energy consumption and higher production in MMT exfoliation than the shearing method. The exfoliated nanosheets were about 1 nm in thickness, indicating that single layer of MMT has been produced.
The paper’s primary contribution is finding that the ultrasound treatment was superior to mechanical shearing for the exfoliation of MMT. As a superior material, the exfoliated single layer can be applied in many fields especially in strengthening biodegradable polymers.