Enhanced dielectric properties through using mixed fillers consisting of nano-barium titanate/nickel hydroxide for polyvinylidene fluoride based composites

Yang, Yan; Li, Zhongyuan; Ji, Wenjing; Sun, Chengxiao; Deng, Hua; Fu, Qiang

doi:10.1016/j.compositesa.2017.10.024

Cited by 31 publications

(13 citation statements)

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“…18 and 19)) into a polymer matrix to form composites. [20][21][22][23] This approach has been extensively studied for various polymer matrices including poly(vinylidene uoride) (PVDF), polymethylmethacrylate (PMMA), 24 polyimides 25 and epoxy resins. 26 The dielectric constant of ferroelectric/polymer composite system can be improved by a few times compared to the pure polymer when a high content of ferroelectric particles is incorporated (>50 vol%).…”

Section: Introductionmentioning

confidence: 99%

Significantly enhanced dielectric constant and energy storage properties in polyimide/reduced BaTiO₃composite films with excellent thermal stability

et al. 2019

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Section: Introductionmentioning

confidence: 99%

Significantly enhanced dielectric constant and energy storage properties in polyimide/reduced BaTiO₃composite films with excellent thermal stability

et al. 2019

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“…Ceramic‐polymer composites with excellent dielectric property attracted intense research attention . They are applied in various fields such as capacitors, electromagnetic interference shielding, piezoelectric and pyroelectric sensors, and electrical actuators . Barium titanate (BT) is an excellent ferroelectric, piezoelectric and dielectric material, and is widely used as ceramic fillers.…”

Section: Introductionmentioning

confidence: 99%

“…Of course, there are other methods to be proposed. Yang introduced in situ synthesized nickel hydroxide (Ni(OH) 2 ) three‐dimensional flower filler to improve the dispersion of BT nanoparticles in PVDF for enhancing dielectric property. Almadhoun reported a surface hydroxylation treatment using hydrogen peroxide.…”

Section: Introductionmentioning

confidence: 99%

Dielectric property of modified barium titanate/polyamide 11 nanocomposites with different surfactants

Chen

Yang

et al. 2019

J of Applied Polymer Sci

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Barium titanate/polyamide 11 (BT/PA11) nanocomposites were prepared by modifying BT nanoparticles with dry surface modification process, which had well dispersion, high dielectric constant, and low dielectric loss. Various methods were reported to improve dispersion and compatibility with complex process and high cost. Herein, three surfactants [ γ‐aminopropyl triethoxy silane (KH550), sorbitan monostearate (SP60), and octadecyl phosphate ester (OPE)] were chosen to modify BT nanoparticles. Then modified‐BT nanoparticles were blended with PA11. The structure was characterized by Fourier transform infrared, scanning electron microscope, and wide angle X‐ray diffraction. Dielectric property was studied by broadband dielectric spectroscopy. The frequency dependence and temperature dependence of dielectric constant, dielectric loss, and dielectric modulus were analyzed. In general, dielectric property has strong frequency and temperature dependence. Furthermore, dielectric spectra shows that modified BT/PA11 nanocomposites have higher dielectric constant, lower dielectric loss, fewer interface polarization, and more dipole polarization. In contrast to three surfactants, OPE‐BT nanoparticles have better effects, whose dielectric constant increases from 19 to 28 at 1 Hz, and dielectric loss decreases from 0.36 to 0.23. Meanwhile, mechanical property was characterized by universal testing machine. In all, the work improves dispersion of BT nanoparticles and dielectric property with easy process and low cost. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47447.

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“…Ni(OH) 2 has often been used as the electrode materials for supercapacitors. Our group has recently used this type of materials as filler for dielectric polymer composites [35][36][37]. Comparing with other dielectric filler such as BaTiO 3 , Ni(OH) 2 can be dispersed homogeneously in PVDF matrix without any surface modification due to their strong interaction with polymer matrix.…”

Section: Introductionmentioning

confidence: 99%

The effect of multilayered film structure on the dielectric properties of composites films based on P(VDF-HFP)/Ni(OH)₂

Sun

Deng

et al. 2019

Nanocomposites

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2019) The effect of multilayered film structure on the dielectric properties of composites films based on P(VDF-HFP)/Ni(OH) 2 , Nanocomposites, 5:1, 36-48, ABSTRACT High dielectric constant ceramics fillers are widely used as fillers in polymer matrix to prepare high performance dielectric composites. Homogeneous filler distribution in these composites films is found to be quite difficult to achieve balance between high dielectric constant and high breakdown strength. Herein, multilayer structured composites films containing nickelous hydroxide (Ni(OH) 2 ) as fillers, with different multilayered structures were designed and prepared, including 2-5 layers structure with various filler distribution. The effects of multilayer structure on the dielectric performance are explored by keeping the overall filler content constant. Combined with computer simulation, it is suggested that the variation in filler distribution in these films can effectively redistribute electric field intensity. Meanwhile, the dielectric constant and breakdown strength of the overall composites can be adjusted by changing the volume ratio between high filler content layer and low filler content layer. It is noted that at least 1/3 of the overall film volume should be occupied by a high breakdown strength layer to keep rather high overall breakdown strength. Moreover, high dielectric constant layer should be the outer layers to achieve overall high dielectric constant. Among all the layered structures investigated, the maximum energy density of 6.03 J/cm 3 is obtained for film with a 3-layer nonsequential arrangement structure, which is 68% higher than single layer film with identical composition. This study provides some reference value for the preparation of multilayered dielectric polymer composites films for energy storage applications. GRAPHICAL ABSTRACT ARTICLE HISTORY

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Enhanced dielectric properties through using mixed fillers consisting of nano-barium titanate/nickel hydroxide for polyvinylidene fluoride based composites

Cited by 31 publications

References 40 publications

Significantly enhanced dielectric constant and energy storage properties in polyimide/reduced BaTiO₃composite films with excellent thermal stability

Significantly enhanced dielectric constant and energy storage properties in polyimide/reduced BaTiO₃composite films with excellent thermal stability

Dielectric property of modified barium titanate/polyamide 11 nanocomposites with different surfactants

The effect of multilayered film structure on the dielectric properties of composites films based on P(VDF-HFP)/Ni(OH)₂

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Enhanced dielectric properties through using mixed fillers consisting of nano-barium titanate/nickel hydroxide for polyvinylidene fluoride based composites

Cited by 31 publications

References 40 publications

Significantly enhanced dielectric constant and energy storage properties in polyimide/reduced BaTiO3composite films with excellent thermal stability

Significantly enhanced dielectric constant and energy storage properties in polyimide/reduced BaTiO3composite films with excellent thermal stability

Dielectric property of modified barium titanate/polyamide 11 nanocomposites with different surfactants

The effect of multilayered film structure on the dielectric properties of composites films based on P(VDF-HFP)/Ni(OH)2

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Significantly enhanced dielectric constant and energy storage properties in polyimide/reduced BaTiO₃composite films with excellent thermal stability

Significantly enhanced dielectric constant and energy storage properties in polyimide/reduced BaTiO₃composite films with excellent thermal stability

The effect of multilayered film structure on the dielectric properties of composites films based on P(VDF-HFP)/Ni(OH)₂