Core–satellite Ag@BaTiO3 nanoassemblies for fabrication of polymer nanocomposites with high discharged energy density, high breakdown strength and low dielectric loss

2013 ◽  
Vol 15 (40) ◽  
pp. 17560 ◽  
Author(s):  
Liyuan Xie ◽  
Xingyi Huang ◽  
Bao-Wen Li ◽  
Chunyi Zhi ◽  
Toshikatsu Tanaka ◽  
...  
Keyword(s):  
Dielectric Loss ◽  
Energy Density ◽  
Polymer Nanocomposites ◽  
Breakdown Strength ◽  
Low Dielectric ◽  
Discharged Energy Density

An ultrahigh discharged energy density achieved in an inhomogeneous PVDF dielectric composite filled with 2D MXene nanosheets via interface engineering

2018 ◽  
Vol 6 (48) ◽  
pp. 13283-13292 ◽  
Author(s):  
Yefeng Feng ◽  
Qihuang Deng ◽  
Cheng Peng ◽  
Jianbing Hu ◽  
Yandong Li ◽  
...  
Keyword(s):  
Dielectric Loss ◽  
Energy Density ◽  
Polymer Nanocomposites ◽  
Breakdown Strength ◽  
Homogeneous Structure ◽  
Interface Engineering ◽  
Dielectric Composite ◽  
Conductive Fillers ◽  
Discharged Energy Density

Simultaneously improved permittivity and breakdown strength, accompanied with reduced dielectric loss and conductivity, are difficult to achieve in polymer nanocomposites with conductive fillers by blending to construct a homogeneous structure.

Tailoring the dipole properties in dielectric polymers to realize high energy density with high breakdown strength and low dielectric loss

2015 ◽  
Vol 117 (11) ◽  
pp. 114104 ◽  
Author(s):  
Yash Thakur ◽  
Minren Lin ◽  
Shan Wu ◽  
Zhaoxi Cheng ◽  
D.-Y. Jeong ◽  
...  
Keyword(s):  
Dielectric Loss ◽  
Energy Density ◽  
Breakdown Strength ◽  
High Energy ◽  
High Energy Density ◽  
Low Dielectric

scholarly journals Dielectric Constant Enhancement with Low Dielectric Loss Growth in Graphene Oxide/Mica/Polypropylene Composites

2021 ◽  
Vol 5 (2) ◽  
pp. 52
Author(s):  
Chao-Yu Lee ◽  
Chia-Wei Chang
Keyword(s):  
Dielectric Constant ◽  
Graphene Oxide ◽  
Dielectric Loss ◽  
Energy Density ◽  
Breakdown Strength ◽  
Dielectric Material ◽  
Dielectric Strength ◽  
Self Healing ◽  
Organic Thin Film ◽  
Low Dielectric

Polypropylene has been widely used as dielectric material in organic thin-film capacitors due to their high breakdown strength, low dielectric loss and self-healing capability. However, polypropylene’s energy density is relatively low. Increasing the energy density of polypropylene by adding materials with a high dielectric constant is commonly used. Still, it often leads to an increase in dielectric loss, lower dielectric strength and other shortcomings. In this study, a thin 2D platelet of mica/graphene oxide composite material was made from exfoliated mica as a substrate and attached by graphene oxide. The mica/graphene oxide platelets were added to polypropylene to make a plastic dielectric composite. The non-conductive flat inorganic additive can increase the dielectric constant and dielectric strength of the composite without increasing dielectric loss. The tiny mica/graphene oxide platelets can significantly improve the dielectric properties of polypropylene. The results show that by adding a small amount (less than 1 wt%) mica/graphene oxide, the relative dielectric constant of polypropylene can increase to more than 3.7 without causing an increase in dielectric loss and the dielectric strength of polypropylene can also enhance.

scholarly journals Recent Advances in the Synthesis of Polymer-Grafted Low-K and High-K Nanoparticles for Dielectric and Electronic Applications

Molecules ◽  
2021 ◽  
Vol 26 (10) ◽  
pp. 2942
Author(s):  
Bhausaheb V. Tawade ◽  
Ikeoluwa E. Apata ◽  
Nihar Pradhan ◽  
Alamgir Karim ◽  
Dharmaraj Raghavan
Keyword(s):  
Energy Density ◽  
Polymer Nanocomposites ◽  
High Performance ◽  
Breakdown Strength ◽  
Polymer Nanocomposite ◽  
High Energy ◽  
Polymer Chains ◽  
High Energy Density ◽  
Grafted Nanoparticles ◽  
Grafting From

The synthesis of polymer-grafted nanoparticles (PGNPs) or hairy nanoparticles (HNPs) by tethering of polymer chains to the surface of nanoparticles is an important technique to obtain nanostructured hybrid materials that have been widely used in the formulation of advanced polymer nanocomposites. Ceramic-based polymer nanocomposites integrate key attributes of polymer and ceramic nanomaterial to improve the dielectric properties such as breakdown strength, energy density and dielectric loss. This review describes the ”grafting from” and ”grafting to” approaches commonly adopted to graft polymer chains on NPs pertaining to nano-dielectrics. The article also covers various surface initiated controlled radical polymerization techniques, along with templated approaches for grafting of polymer chains onto SiO2, TiO2, BaTiO3, and Al2O3 nanomaterials. As a look towards applications, an outlook on high-performance polymer nanocomposite capacitors for the design of high energy density pulsed power thin-film capacitors is also presented.

Enhanced dielectric properties and thermostability in polyimide composites with core-shell structured polyimide@BaTiO3 nanoparticles

2021 ◽  
pp. 095400832199352
Author(s):  
Wei Deng ◽  
Guanguan Ren ◽  
Wenqi Wang ◽  
Weiwei Cui ◽  
Wenjun Luo
Keyword(s):  
Dielectric Constant ◽  
Dielectric Loss ◽  
Energy Density ◽  
Breakdown Strength ◽  
In Situ Polymerization ◽  
Dielectric Materials ◽  
High Energy ◽  
Amic Acid ◽  
High Energy Density ◽  
Core Shell

Polymer composites with high dielectric constant and thermal stability have shown great potential applications in the fields relating to the energy storage. Herein, core-shell structured polyimide@BaTiO3 (PI@BT) nanoparticles were fabricated via in-situ polymerization of poly(amic acid) (PAA) and the following thermal imidization, then utilized as fillers to prepare PI composites. Increased dielectric constant with suppressed dielectric loss, and enhanced energy density as well as heat resistance were simultaneously realized due to the presence of PI shell between BT nanoparticles and PI matrix. The dielectric constant of PI@BT/PI composites with 55 wt% fillers increased to 15.0 at 100 Hz, while the dielectric loss kept at low value of 0.0034, companied by a high energy density of 1.32 J·cm−3, which was 2.09 times higher than the pristine PI. Moreover, the temperature at 10 wt% weight loss reached 619°C, demonstrating the excellent thermostability of PI@BT/PI composites. In addition, PI@BT/PI composites exhibited improved breakdown strength and toughness as compared with the BT/PI composites due to the well dispersion of PI@BT nanofillers and the improved interfacial interactions between nanofillers and polymer matrix. These results provide useful information for the structural design of high-temperature dielectric materials.

scholarly journals High discharged energy density of polymer nanocomposites induced by Nd-doped BaTiO3 nanoparticles

2018 ◽  
Vol 4 (1) ◽  
pp. 44-50 ◽  
Author(s):  
Jing Wang ◽  
Juntao Hu ◽  
Lu Yang ◽  
Kongjun Zhu ◽  
Bao-Wen Li ◽  
...  
Keyword(s):  
Energy Density ◽  
Polymer Nanocomposites ◽  
Discharged Energy Density ◽  
Batio3 Nanoparticles

scholarly journals Enhanced breakdown strength and suppressed dielectric loss of polymer nanocomposites with BaTiO3 fillers modified by fluoropolymer

RSC Advances ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 7065-7072
Author(s):  
Jianxin Zhang ◽  
Jiachen Ma ◽  
Luqing Zhang ◽  
Chuanyong Zong ◽  
Anhou Xu ◽  
...  
Keyword(s):  
Dielectric Loss ◽  
Polymer Nanocomposites ◽  
High Performance ◽  
Breakdown Strength ◽  
Composite Films ◽  
Hybrid Nanoparticles ◽  
Dielectric Composite

Preparation of high-performance dielectric composite films using PDFMA@BT hybrid nanoparticles as fillers.

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