Improved dielectric, tensile and energy storage properties of surface rubberized BaTiO3/polypropylene nanocomposites

Zheng, Ming‐Sheng; Zheng, Yuting; Dang, Zhi‐Min; Yang, Yu; Han, Peng; Wen, Yongqiang

doi:10.1016/j.nanoen.2018.03.049

Cited by 207 publications

(102 citation statements)

References 29 publications

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“…7(d). 29 It was shown that the breakdown strengths of both the treated and untreated BT/ PVDF composites decreased as a function of filler loading. However, the voltage resistance exhibited significant improvement after thermal treatment.…”

Section: Dielectric and Energy Storage Performances Of Thermal Treatementioning

confidence: 99%

Improvements of dielectric properties and energy storage performances in BaTiO₃/PVDF nanocomposites by employing a thermal treatment process

2018

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The influence of thermal treatment on the dielectric properties and energy storage performances of a classical dielectric nanocomposite system (barium titanate/polyvinylidene fluoride PVDF) was discussed systematically. The results demonstrated that the permittivity of thermal treated nanocomposites increased and dielectric loss decreased compared with the untreated system. In addition, the energy density was also greatly improved due to the inclined residual polarization. For example, the energy density of the treated nanocomposite with 50[Formula: see text]vol.% nanofillers was 3.14 times higher than the untreated nanocomposite at 50[Formula: see text]MV/m. Moreover, the charge–discharge efficiency was also promoted from 6.36% to 56.89%. According to the viewpoint of microstructure, the improvement of the dielectric and energy storage properties would be ascribed to the suppression on void defects in the interphase of dielectric nanocomposite by employing the thermal treatment process. Finally, thermal treatment turns out to be a simple and an effective method to improve the dielectric performances and energy storage properties in the dielectric nanocomposites.

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Section: Dielectric and Energy Storage Performances Of Thermal Treatementioning

confidence: 99%

Improvements of dielectric properties and energy storage performances in BaTiO₃/PVDF nanocomposites by employing a thermal treatment process

2018

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“…Therefore, U e is highly dependent on both K and E , where E limited by the breakdown strength of dielectrics . To enhance U e , extensive studies have been carried out to improve K by adding high K ceramic fillers such as barium titanate (BT), barium strontium titanate, and copper titanate calcium into polymer matrices . However, the thus‐designed polymer composites typically suffer from large reductions in breakdown strength, which preclude a substantial gain in U e .…”

Section: Introductionmentioning

confidence: 99%

“…25,26 To enhance U e , extensive studies have been carried out to improve K by adding high K ceramic fillers such as barium titanate (BT), barium strontium titanate, and copper titanate calcium into polymer matrices. [27][28][29][30][31][32] However, the thus-designed polymer composites typically suffer from large reductions in breakdown strength, which preclude a substantial gain in U e . Alternatively, wide-band-gap fillers such as aluminum oxide (Al 2 O 3 ), silicon dioxide (SiO 2 ), and boron nitride (BN) have been utilized to enhance breakdown strength of polymer composites.…”

mentioning

confidence: 99%

Ternary polymer nanocomposites with concurrently enhanced dielectric constant and breakdown strength for high‐temperature electrostatic capacitors

Ren

et al. 2019

InfoMat

133

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The exploration of high‐energy‐density electrostatic capacitors capable of operating both efficiently and reliably at elevated temperatures is of great significance in order to meet advanced power electronic applications. The energy density of a capacitor is strongly dependent on dielectric constant and breakdown strength of a dielectric material. Here, we demonstrate a class of solution‐processable polymer nanocomposites exhibiting a concurrent improvement in dielectric constant and breakdown strength, which typically show a negative correlation in conventional dielectric materials, along with a reduction in dielectric loss. The excellent performance is enabled by the elegant combination of nanostructured barium titanate and boron nitride fillers with complementary functionalities. The ternary polymer nanocomposite with the optimized filler compositions delivers a discharged energy density of 2.92 J cm−3 and a Weibull breakdown strength of 547 MV m−1 at 150°C, which are 83% and 25%, respectively, greater than those of the pristine polymer. The conduction behaviors including interfacial barrier and carrier transport process have been investigated to rationalize the energy storage performance of ternary polymer nanocomposite. This contribution provides a new design paradigm for scalable high‐temperature polymer film capacitors.

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“…Ferroelectric polymers [21][22][23][24][25] poly(vinylidene uoride) (PVDF) and its binary/terpolymers are oen used as a polymer matrix for the preparation of high performance dielectric nanocomposite materials due to their high dielectric constant. Compared to hydrocarbon-based polymers, uoropolymers have lower surface energy, resulting in less compatible with most organic and inorganic materials.…”

Section: Introductionmentioning

confidence: 99%

Enhanced breakdown strength and suppressed dielectric loss of polymer nanocomposites with BaTiO₃fillers modified by fluoropolymer

Zhang

et al. 2020

RSC Adv.

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Improved dielectric, tensile and energy storage properties of surface rubberized BaTiO3/polypropylene nanocomposites

Cited by 207 publications

References 29 publications

Improvements of dielectric properties and energy storage performances in BaTiO₃/PVDF nanocomposites by employing a thermal treatment process

Improvements of dielectric properties and energy storage performances in BaTiO₃/PVDF nanocomposites by employing a thermal treatment process

Ternary polymer nanocomposites with concurrently enhanced dielectric constant and breakdown strength for high‐temperature electrostatic capacitors

Enhanced breakdown strength and suppressed dielectric loss of polymer nanocomposites with BaTiO₃fillers modified by fluoropolymer

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Improved dielectric, tensile and energy storage properties of surface rubberized BaTiO3/polypropylene nanocomposites

Cited by 207 publications

References 29 publications

Improvements of dielectric properties and energy storage performances in BaTiO3/PVDF nanocomposites by employing a thermal treatment process

Improvements of dielectric properties and energy storage performances in BaTiO3/PVDF nanocomposites by employing a thermal treatment process

Ternary polymer nanocomposites with concurrently enhanced dielectric constant and breakdown strength for high‐temperature electrostatic capacitors

Enhanced breakdown strength and suppressed dielectric loss of polymer nanocomposites with BaTiO3fillers modified by fluoropolymer

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Improvements of dielectric properties and energy storage performances in BaTiO₃/PVDF nanocomposites by employing a thermal treatment process

Improvements of dielectric properties and energy storage performances in BaTiO₃/PVDF nanocomposites by employing a thermal treatment process

Enhanced breakdown strength and suppressed dielectric loss of polymer nanocomposites with BaTiO₃fillers modified by fluoropolymer