High dielectric performance and thermal conductivity dielectric composite film via vertical alignment of hybrid BaTiO3 nanofibers

Zhang, Guorui; Xue, Sen; Wang, Zirui; Luo, Nian; Ni, Zhaoyang; Guan, Rongting; Chen, Feng; Fu, Qiang

doi:10.1016/j.polymer.2024.126953

Polymer

2024

DOI: 10.1016/j.polymer.2024.126953

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High dielectric performance and thermal conductivity dielectric composite film via vertical alignment of hybrid BaTiO3 nanofibers

Guorui Zhang,

Sen Xue,

Zirui Wang

et al.

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2024

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Cited by 1 publication

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The Role of Silanization of Barium Strontium Titanate Nanopowders on the Dielectric Constant and Thermal Stability of Epoxy Nanocomposites

Chu,

Phan,

Bui

et al. 2024

ChemistrySelect

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This paper reports polymer composites′ microstructure and dielectric properties based on an epoxy resin matrix containing different amounts (from 2–10 wt. %) of barium strontium titanate nanoparticles. (Ba,Sr)TiO3 was prepared using the hydrothermal method, showing an average particle size of 100 nm. The composites′ thermal properties and morphology were characterized using thermogravimetric analysis, differential scanning calorimetry, and scanning electron microscopy. Our studies show that the (Ba,Sr)TiO3 nanoparticles were well dispersed in the epoxy resin matrix thanks to controlled silane functionalization. Accordingly, the glass transition temperature (Tg) value of the nanocomposites was found to be 159.0 °C at 10 wt. % (Ba,Sr)TiO3 loading and is higher than the neat epoxy resin Tg (Tg=154.7 °C). Moreover, the dielectric composite properties were investigated comprehensively via a wide range of frequencies from 10 Hz to 100 kHz. The results indicate that (Ba,Sr)TiO3 nanopowders and the surface modifying filler play a crucial role in the significant increase of the dielectric constants, approximately 1.5 times at the optimum added amount (Ba,Sr)TiO3. The limited functionalization of (Ba,Sr)TiO3 nanoparticles by the silane affords to control the nanocomposite dielectric loss. Furthermore, the nanocomposites also exhibited good thermal stability.

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The Role of Silanization of Barium Strontium Titanate Nanopowders on the Dielectric Constant and Thermal Stability of Epoxy Nanocomposites

Chu,

Phan,

Bui

et al. 2024

ChemistrySelect

View full text Add to dashboard Cite

show abstract

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High dielectric performance and thermal conductivity dielectric composite film via vertical alignment of hybrid BaTiO3 nanofibers

Cited by 1 publication

References 39 publications

The Role of Silanization of Barium Strontium Titanate Nanopowders on the Dielectric Constant and Thermal Stability of Epoxy Nanocomposites

The Role of Silanization of Barium Strontium Titanate Nanopowders on the Dielectric Constant and Thermal Stability of Epoxy Nanocomposites

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