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Preparation, characterization and thermal behavior of poly(vinyl alcohol)/organic montmorillonite nanocomposites through solid-state shear pan-milling

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Abstract

In this study, the solid-state shear pan-milling was employed to prepare a series of polymer/layered silicate (PLS) nanocomposites. During the process of pan-milling at ambient temperature, poly(vinyl alcohol)/organic montmorillonite (PVA/OMMT) can be effectively pulverized, resulting in coexistence of intercalated and exfoliated OMMT layers. The obtained PLS nanocomposites were characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). TEM analysis indicated that OMMT dispersed homogeneously in PVA matrix and XRD results illustrated that pan-milling had an obvious effect on increase in the interlayer spacing of OMMT, and resulted in coexistence of intercalated and exfoliated OMMT layers formed. Thermal gravimetric analysis showed that thermal stability of PVA was improved owing to the incorporation of OMMT. Thermal decomposition kinetics of PVA/OMMT nanocomposites with different milling cycles of OMMT was also studied. Two types of OMMT are chosen to compare the effect of hydrophilicity of OMMT on PVA/OMMT nanocomposites.

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Acknowledgements

The authors would like to thank National Science Foundation of China (50833003) for financial Support, and thank Analytical and Testing Center of Sichuan University for providing XRD measurement facility.

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Authors and Affiliations

  1. State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu, Sichuan, 610065, People’s Republic of China

    Cuiying Li, Wei Zhang, Bo Zhao, Mei Liang & Canhui Lu

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  1. Cuiying Li
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  2. Wei Zhang
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  3. Bo Zhao
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  4. Mei Liang
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  5. Canhui Lu
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Correspondence to Canhui Lu.

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Li, C., Zhang, W., Zhao, B. et al. Preparation, characterization and thermal behavior of poly(vinyl alcohol)/organic montmorillonite nanocomposites through solid-state shear pan-milling. J Therm Anal Calorim 103, 205–212 (2011). https://doi.org/10.1007/s10973-010-0975-6

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  • DOI: https://doi.org/10.1007/s10973-010-0975-6

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