Characterization of poly(vinylidene fluoride)/Na+‐MMT composites: An investigation into the β‐crystalline nucleation effect of Na+‐MMT |
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| Authors: | Tongfei Wu Tingxiu Xie Guisheng Yang |
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| Affiliation: | 1. CAS Key Laboratory of Engineering Plastics, Joint Laboratory of Polymer Science and Technology, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China;2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China;3. Shanghai Genius Advanced Materials Co., Ltd, Shanghai 201109, China |
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| Abstract: | Poly(vinylidene fluoride)(PVDF)/Na+‐MMT composites have been successfully prepared utilizing sodium montmorillonite (Na+‐MMT) via N,N‐dimethylformamide (DMF) solution mixing. The dispersion of Na+‐MMT layers in composites were investigated by transmission electron microscopy (TEM) and X‐ray diffraction (XRD). The effect of adding Na+‐MMT on crystallization behavior of PVDF was specifically studied. The β‐crystalline nucleation effect of Na+‐MMT was investigated and confirmed by differential scanning calorimetry (DSC), XRD, and Fourier transform infrared (FTIR) results. The interaction between PVDF and the surface of Na+‐MMT layers in DMF solution was confirmed by UV‐Vis absorbency. The effect of adding Na+‐MMT on rheological and electrical properties of PVDF/Na+‐MMT composites were also determined. © 2009 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 47: 903–911, 2009 |
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| Keywords: | β ‐crystalline nucleation clay ferroelectricity mixing nanocomposites nucleation poly(vinylidene fluoride)/Na+‐MMT composites |
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