Journal of Minerals and Materials Research

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Comparison of Ultrasound Treatment with Mechanical Shearing for Montmorillonite Exfoliation in Aqueous Solutions

Pages: 1-12
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Comparison of Ultrasound Treatment with Mechanical Shearing for Montmorillonite Exfoliation in Aqueous Solutions

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DOI: 10.18488/journal.86/2015.2.1/86.1.1.12

Citation: 1

Hongliang Li , Yunliang Zhao , Shaoxian Song , Yuri Nahmad

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(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.86/2015.2.1/86.1.1.12
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.
Contribution/ Originality
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.