High‐performance PA1/TPU films with enhanced dielectric constant and low loss tangent

Yuan, Dandan; Chen, Minzhang; Xu, Yuanting; Huang, Lei; Ma, Jun; Qinghai, Peng; Cai, Xufu

doi:10.1002/app.48469

Cited by 11 publications

(13 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…There are few reports investigating all-organic PS-based composites. In comparison to PS-based inorganic composites, all-organic PS films display the advantages of being lightweight and having a good processability and flexibility. − For example, Ploehn et al fabricated di-block copolymer films consisting of π-conjugated terthiophene-containing methacrylate and PS (PTTEMA- b -PS) and PTTEMA/PS blending films with the same mass fractions of PTTEMA. The experimental results showed that both PTTEMA- b -PS copolymers and PTTEMA/PS blends exhibited linear polarization behavior and low hysteresis.…”

Section: Introductionmentioning

confidence: 99%

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.

View full text Add to dashboard Cite

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.

show abstract

Section: Introductionmentioning

confidence: 99%

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.

View full text Add to dashboard Cite

show abstract

“…Breakdown strength ( E b ) is a key factor to achieve a high energy density of dielectric capacitors. Figure a displays the E b of the PPDI/PVTC blending films with various loadings of PPDI, which is investigated by a two-parameter Weibull statistic distribution method as below − …”

Section: Resultsmentioning

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.

View full text Add to dashboard Cite

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.

show abstract

Section: Architectures For Polymer Dielectricsmentioning

confidence: 99%

Progress on Polymer Dielectrics for Electrostatic Capacitors Application

Luo

Wang

et al. 2022

Advanced Science

View full text Add to dashboard Cite

Polymer dielectrics are attracting increasing attention for electrical energy storage owing to their advantages of mechanical flexibility, corrosion resistance, facile processability, light weight, great reliability, and high operating voltages. However, the dielectric constants of most dielectric polymers are less than 10, which results in low energy densities and limits their applications in electrostatic capacitors for advanced electronics and electrical power systems. Therefore, intensive efforts have been placed on the development of high‐energy‐density polymer dielectrics. In this perspective, the most recent results on the all‐organic polymer dielectrics are summarized, including molecular structure design, polymer blends, and layered structured polymers. The challenges in the field and suggestions for future research on high‐energy‐density polymer dielectrics are also presented.

show abstract

High‐performance PA1/TPU films with enhanced dielectric constant and low loss tangent

Cited by 11 publications

References 50 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

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

Progress on Polymer Dielectrics for Electrostatic Capacitors Application

Contact Info

Product

Resources

About