Flexible poly(vinylidene fluoride)-based composites with high breakdown strength and energy density induced from poly(anthraquinone sulphide)

Du, Xiaolong; Li, Zeyu; Xu, Tao; Wang, Jitian; Yan, Shengliao; Dong, Lijie

doi:10.1016/j.cej.2019.122328

Cited by 27 publications

(16 citation statements)

References 25 publications

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“…Compared with the high insulation of PS, PBCN exhibited a low band width because the molecular structure of the side chain contained three electron-absorbing aromatic groups and formed a π electronic conjugative effect. Accordingly, the PBCN organic filler possessed a high electron affinity and could trap a large amount of charge from the applied E at the interface, as well as restrict the long-distance migration of charges or electrons, resulting in an increase in E b . , Additionally, E b is also affected by the compatibility between the organic filler and the polymer matrix. Due to the poor compatibility between PBCN and the PS matrix, some voids and defects would be formed in the PBCN/PS blends, which was detrimental for E b , especially at a high loading of PBCN.…”

Section: Resultsmentioning

confidence: 99%

“…Recently, Li et al verified that the organic fillers of high-electron-affinity molecular semiconductors could raise the E b of polyetherimide . Du et al found that the addition of the organic semiconductive polymer PAQS with a wide energy band gap (3 eV) into a poly(vinylidene fluoride) matrix could improve the E b and electric displacement . Additionally, it is well known that organic fillers with high ε r can increase the dielectric properties of the polymer matrix.…”

Section: Introductionmentioning

confidence: 99%

“…43 Du et al found that the addition of the organic semiconductive polymer PAQS with a wide energy band gap (3 eV) into a poly(vinylidene fluoride) matrix could improve the E b and electric displacement. 44 Additionally, it is well known that organic fillers with high ε r can increase the dielectric properties of the polymer matrix. Inspired by these opinions, we wondered if an organic polymer filler with high ε r and high electron affinity could be designed and synthesized to simultaneously enhance the ε r and E b of the PS film.…”

Section: Introductionmentioning

confidence: 99%

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Achieving Superior Energy Storage Properties of All-Organic Dielectric Polystyrene-Based Composites by Blending Rod–Coil Block Copolymers

Liu

Wang

et al. 2021

ACS Sustainable Chem. Eng.

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With the excessive consumption of natural resources and the miniaturization trends of advanced electronic products and equipment, there is an urgent need to improve the energy density and efficiency of polymeric dielectrics. In this paper, we explore the effect of rod−coil block copolymer polystyrene-b-poly[bis(4-cyanophenyl) 2-vinylterephthalate] (denoted as PS-b-PBCN) on the dielectric behavior and energy storage properties of PS-based blend films. The dipolar glass rigid polymer PBCN can have a columnar nematic phase, a high glass-transition temperature of 156 °C, a high relative permittivity (ε r ) of 14, and a low band gap of ≈3.44 eV; however, it has poor film-forming properties. Linear dielectric PS possesses low cost, and good film-forming and insulation properties, with a low ε r value of 2.5. Two types of PS-b-PBCN block copolymers (PS 158 -b-PBCN 78 and PS 158 -b-PBCN 16 ), including a coil PS block and an electronically polarized rod PBCN block, are fabricated via reversible addition−fragmentation chain transfer polymerization polymerization. The PBCN/PS-and PS-b-PBCN/PS-blended films are synthesized by solution casting. The experimental results indicate that the ε r and breakdown strength of the blend films improve with an increasing mass content of homopolymer PBCN or block copolymer PS-b-PBCN.A maximum ε r value of 5.8 at 1 kHz is obtained in the 30 wt % PS 158 -b-PBCN 78 /PS blend film owing to the good compatibility and high loading of the polar polymer PBCN. Moreover, a low dielectric loss of 0.018 is found. A discharged energy density of 2.16 J/cm 3 with a high efficiency of 90% at 295 MV/m is achieved because PBCN can immobilize free electrons and restrict the long-distance migration of charges. This work provides an idea for the fabrication of all-organic PS-based dielectrics with a high energy storage performance by introducing rod−coil block copolymers.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Achieving Superior Energy Storage Properties of All-Organic Dielectric Polystyrene-Based Composites by Blending Rod–Coil Block Copolymers

Liu

Wang

et al. 2021

ACS Sustainable Chem. Eng.

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show abstract

“…The overall preparation procedure was straightforward, requiring no chemical modification of the surface. As a result, composite materials‘ mechanical properties, such as elongation at break, mechanical strength, and toughness, were improved [ 103 ].…”

Section: Nonlinear Polymer Dielectricsmentioning

confidence: 99%

Energy Storage Application of All-Organic Polymer Dielectrics: A Review

et al. 2022

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With the wide application of energy storage equipment in modern electronic and electrical systems, developing polymer-based dielectric capacitors with high-power density and rapid charge and discharge capabilities has become important. However, there are significant challenges in synergistic optimization of conventional polymer-based composites, specifically in terms of their breakdown and dielectric properties. As the basis of dielectrics, all-organic polymers have become a research hotspot in recent years, showing broad development prospects in the fields of dielectric and energy storage. This paper reviews the research progress of all-organic polymer dielectrics from the perspective of material preparation methods, with emphasis on strategies that enhance both dielectric and energy storage performance. By dividing all-organic polymer dielectrics into linear polymer dielectrics and nonlinear polymer dielectrics, the paper describes the effects of three structures (blending, filling, and multilayer) on the dielectric and energy storage properties of all-organic polymer dielectrics. Based on the above research progress, the energy storage applications of all-organic dielectrics are summarized and their prospects discussed.

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“…For example, Du et al have proposed new flexible dielectric polymer blends comprising the PVDF matrix and organic polymer filler poly(anthraquinone sulfide) with high ε r and excellent compatibility. 36 A 2 wt % poly(anthraquinone sulfide)/PVDF blend can produce a large U d of 18 J/cm 3 at 560 MV/m. Islam et al have explored the dielectric and polarization properties of PTTEMA and polystyrene (PS) blends.…”

Section: Introductionmentioning

confidence: 99%

n-Type Semiconductive Polymer and Poly(vinylidene fluoride-trifluoroethylene-chlorotrifluoroethylene) Blends for Energy Storage Applications

Qiao

Chen

et al. 2021

ACS Appl. Polym. Mater.

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Dielectric polymers play a vital role in modern electronic and electrical application because of easy processing, light weight, and high breakdown strength. A high dielectric constant (εr) and breakdown strength cannot be satisfied simultaneously in the dielectric homopolymers. Via combining the merits of different polymers, the dielectric polymer blending method is a feasible option to address this issue. In this paper, n-type semiconductive polymer poly(1,6,7,12-tetra-chlorinated perylene-N-2-aminoethyl acrylate-N′-dodecylamine-3,4,9,10-tetracarboxylic bisimide) (PPDI) and relaxor ferroelectric polymer poly(vinylidene fluoride-trifluoroethylene-chlorotrifluoroethylene) (PVTC) were utilized to prepare the dielectric polymer blends because PPDI had the characteristic of binding electrons and PVTC possessed a high εr. A series of polymer blends with different weight ratios of PPDI were fabricated to investigate the loading effect of an n-type semiconductive polymer on the dielectric and energy storage properties of PPDI/PVTC blends. The experimental results showed that, when the loading was below 3 wt %, the εr of polymer blends increased from 25 to 33 at 102 Hz with the increasing content of polymer PPDI and then decreased from 33 to 7 with the increasing concentration from 3 to 40 wt %. The dielectric behavior of polymer blends was related to the dispersion of organic fillers and interface polarization. Additionally, a low dielectric loss was found in all polymer blending films. A maximal discharge energy density of 4.42 J/cm–3 was achieved in the 4.5 wt % PPDI/PVTC blending film at 200 kV/mm–1. The finding presents an innovative idea to synthesize high-performance all-organic dielectric materials.

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Flexible poly(vinylidene fluoride)-based composites with high breakdown strength and energy density induced from poly(anthraquinone sulphide)

Cited by 27 publications

References 25 publications

Achieving Superior Energy Storage Properties of All-Organic Dielectric Polystyrene-Based Composites by Blending Rod–Coil Block Copolymers

Achieving Superior Energy Storage Properties of All-Organic Dielectric Polystyrene-Based Composites by Blending Rod–Coil Block Copolymers

Energy Storage Application of All-Organic Polymer Dielectrics: A Review

n-Type Semiconductive Polymer and Poly(vinylidene fluoride-trifluoroethylene-chlorotrifluoroethylene) Blends for Energy Storage Applications

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