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Enhanced properties of poly(vinylidene fluoride) with low filler content SiO2-g-(MMA-co-BA) core-shell nanoparticles

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Abstract

γ-methacryloxypropyl trimethoxysilane (γ-MPS) modified nano-silica particles (85 nm) were prepared and used to copolymerize with methyl methacrylate (MMA) and butylacrylate (BA) monomers by miniemulsion polymerization method. The obtained SiO2-g-(MMA-co-BA) nanoparticles with different core/shell ratios were used to improve the properties of poly (vinylidene fluoride) (PVDF). SEM result showed SiO2-g-(MMA-co-BA) nanoparticles dispersed in PVDF matrix uniformly due to the good miscibility between PVDF and MMA-co-BA shell. The prepared SiO2-g-(MMA-co-BA) particles behaved a novel toughening ability and even 1 wt% modifier could induce the ductile fracture of PVDF and the PVDF blends showed an excellent toughness and stiffness balance. The toughening mechanism results indicated that debonding between the PVDF and SiO2-g-(MMA-co-BA) particles promoted shear yielding of PVDF matrix. The novel toughening behavior of PVDF was also related with the crystal transformation. During the notched Izod impact test, the α→β phase transformation took place, which should play an important role in toughening of PVDF.

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Acknowledgments

This work was financially supported by the National Natural Science Foundation of China and Jilin Provincial Science & Technology Department under Grants 51273025, 51273026 and 20140101104JC.

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Authors and Affiliations

  1. Engineering Research Center of synthetic resin and special fiber, Ministry of Education, Changchun University of Technology, Changchun, 130012, China

    Shixin Song, Shulin Sun & Huixuan Zhang

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  1. Shixin Song
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  2. Shulin Sun
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  3. Huixuan Zhang
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Correspondence to Shulin Sun.

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Song, S., Sun, S. & Zhang, H. Enhanced properties of poly(vinylidene fluoride) with low filler content SiO2-g-(MMA-co-BA) core-shell nanoparticles. J Polym Res 23, 119 (2016). https://doi.org/10.1007/s10965-016-1012-7

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  • DOI: https://doi.org/10.1007/s10965-016-1012-7

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