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Effect of POSS nanofiller on structure, thermal and mechanical properties of PVDF matrix

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Abstract

Nanocomposites composed of a poly(vinylidene fluoride) (PVDF) matrix and 0, 3, 5, and 8 wt% trifluoropropyllsobutyl POSS (FPB-POSS) were obtained by the solvent evaporation method. The morphology, crystallization, and thermal properties were investigated. POSS presented in the form of micron-sized aggregations of particles distributed in the PVDF matrix. With the addition of POSS, larger particles of PVDF chains were generated with particle sizes increasing from 40 to 240 nm. A relative high fraction of β phase was observed in the composites. The thermal degradation of PVDF was not significantly affected by FPB-POSS under a nitrogen atmosphere. The mechanical property was investigated by a nanoindentation test to study the influence of FPB-POSS. FPB-POSS acting as nanofiller led to remarkable improvement in mechanical properties, including hardness and elastic property. The size effect was more evident with larger addition of FPB-POSS due to the surface roughness.

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Acknowledgments

The authors would like to thank the National Natural Science Foundation of China (11272108, 11102053) and the Science and Technology Innovation Talents Special Fund of Harbin (Grant No. 2012RFQXG001) for the financial support of this research.

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Authors and Affiliations

  1. Department of Astronautic Science and Mechanics, Harbin Institute of Technology, Harbin, China

    Yizhi Liu, Yi Sun, Fanlin Zeng & Jingran Ge

  2. Aerodynamic Research Institute AVIC, Harbin, China

    Jingcang Liu

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  1. Yizhi Liu
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  2. Yi Sun
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  3. Fanlin Zeng
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  4. Jingcang Liu
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  5. Jingran Ge
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Correspondence to Yi Sun.

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Liu, Y., Sun, Y., Zeng, F. et al. Effect of POSS nanofiller on structure, thermal and mechanical properties of PVDF matrix. J Nanopart Res 15, 2116 (2013). https://doi.org/10.1007/s11051-013-2116-1

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  • DOI: https://doi.org/10.1007/s11051-013-2116-1

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