Abstract
Microcrystalline cellulose/nano-SiO2 composite films have been successfully prepared from solutions in ionic liquid 1-allyl-3-methylimidazolium chloride by a facile and economic method. The microstructure and properties were investigated by Fourier transform infrared spectroscopy, wide-angle X-ray diffraction, scanning electron microscopy, transmission electron microscopy, water contact angle, thermal gravimetric analyses, and tensile testing. The results revealed that the well-dispersed nanoparticles exhibit strong interfacial interactions with cellulose matrix. The thermal stability and tensile strength of the cellulose nanocomposite films were significantly improved over those of pure regenerated cellulose film. Furthermore, the cellulose nanocomposite films exhibited better hydrophobicity and a lower degree of swelling than pure cellulose. This method is believed to have potential application in the field of fabricating cellulose-based nanocomposite film with high performance, thus enlarging the scope of commercial application of cellulose-based materials.
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Acknowledgments
We acknowledge the financial support from the Specialized Research Fund for the Doctoral Program of Higher Education (Grant No. 20121301120004), the Natural Science Foundation of Hebei Province (Grant No. B2013201117), the Plan of Science Technology Research and Development of Hebei Province (Grant No. 12211204), Hebei University (Grant No. Y2011223), and the Baoding Bureau of Science and Technology (Grant No. 12ZG023).
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Song, H., Zheng, L. Nanocomposite films based on cellulose reinforced with nano-SiO2: microstructure, hydrophilicity, thermal stability, and mechanical properties. Cellulose 20, 1737–1746 (2013). https://doi.org/10.1007/s10570-013-9941-3
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DOI: https://doi.org/10.1007/s10570-013-9941-3