Fabrication and characterization of β-poly(vinylidene fluoride)/silane-treated titanium dioxide dielectric nano-composites

Yu-Chen Sun; HaoTian H. Shi; Hani E. Naguib

doi:10.1117/12.2222056

18 April 2016 Fabrication and characterization of β-poly(vinylidene fluoride)/silane-treated titanium dioxide dielectric nano-composites

Yu-Chen Sun, HaoTian H. Shi, Hani E. Naguib

Author Affiliations +

Proceedings Volume 9800, Behavior and Mechanics of Multifunctional Materials and Composites 2016; 98000O (2016) https://doi.org/10.1117/12.2222056
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2016, Las Vegas, Nevada, United States

Abstract

Dielectric materials are commonly known as electrical insulators that can be polarized under strong electrical field. Currently, emerging dielectric research interests are focusing on nanoparticles mixed polymer based composites, since such materials demonstrated an astonishing increase in dielectric performance when compared to neat polymer matrix, due to the exponential increase in the interfacial area between the nanoparticles and polymer. Such findings infer that particle dispersion plays a critical role for the overall dielectric performance. In this study, we present a continuous manufacturing process consists of extrusion and stretching for Poly(vinylidene fluoride)/silane-treated titanium dioxide (PVDF/silane-treated TiO₂) flexible organic/inorganic polymer nanocomposites and the experimental result. Our results show that melt blending process is able to break down both silane treated and untreated micro-size TiO₂ agglomerates with extremely well dispersion in PVDF matrix. Follow-up studies and characterizations indicated that the material performances such as dielectric constant and dielectric loss are either similar or surpass the sample prepared via solvent casting and the effects of silane treatment are also discussed. A number of methods was used to characterize the composites, including AFM for dispersion verification and dielectric spectroscopy for dielectric analysis.

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Yu-Chen Sun, HaoTian H. Shi, and Hani E. Naguib "Fabrication and characterization of β-poly(vinylidene fluoride)/silane-treated titanium dioxide dielectric nano-composites", Proc. SPIE 9800, Behavior and Mechanics of Multifunctional Materials and Composites 2016, 98000O (18 April 2016); https://doi.org/10.1117/12.2222056

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KEYWORDS

Dielectrics

Particles

Composites

Ferroelectric polymers

Polymers

Titanium dioxide

Crystals

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