High‐Temperature High‐Energy‐Density Dielectric Polymer Nanocomposites Utilizing Inorganic Core–Shell Nanostructured Nanofillers

2021 ◽  
pp. 2101297
Author(s):  
Lulu Ren ◽  
He Li ◽  
Zongliang Xie ◽  
Ding Ai ◽  
Yao Zhou ◽  
...  
Keyword(s):  
High Temperature ◽  
Energy Density ◽  
Polymer Nanocomposites ◽  
High Energy ◽  
High Energy Density ◽  
Core Shell ◽  
Dielectric Polymer

Polymer nanocomposites with high energy density and improved charge–discharge efficiency utilizing hierarchically-structured nanofillers

2020 ◽  
Vol 8 (14) ◽  
pp. 6576-6585 ◽  
Author(s):  
Yushu Li ◽  
Yao Zhou ◽  
Yujie Zhu ◽  
Sang Cheng ◽  
Chao Yuan ◽  
...  
Keyword(s):  
Energy Density ◽  
Polymer Nanocomposites ◽  
High Energy ◽  
High Energy Density ◽  
Hierarchical Nanostructure ◽  
Discharge Efficiency ◽  
Charge Discharge ◽  
Dielectric Polymer

A hierarchical nanostructure as a new design of nanofillers is demonstrated for high-energy-density dielectric polymer nanocomposites.

Benzoxazole-polymer@CCTO hybrid nanoparticles prepared via RAFT polymerization: toward poly(p-phenylene benzobisoxazole) nanocomposites with enhanced high-temperature dielectric properties

2021 ◽  
Author(s):  
Junhao Jiang ◽  
Jinpeng Li ◽  
Jun Qian ◽  
Xiaoyun Liu ◽  
Peiyuan Zuo ◽  
...  
Keyword(s):  
High Temperature ◽  
Dielectric Properties ◽  
Energy Density ◽  
Polymer Nanocomposites ◽  
Raft Polymerization ◽  
Dielectric Materials ◽  
High Energy ◽  
High Energy Density ◽  
Hybrid Nanoparticles

Polymer nanocomposites with high energy density have become a research hotspot in the field of dielectric materials. However, the huge compatibility contrast between nanofillers and polymers always hinders the further...

High-Energy-Density Dielectric Polymer Nanocomposites with Trilayered Architecture

2017 ◽  
Vol 27 (20) ◽  
pp. 1606292 ◽  
Author(s):  
Feihua Liu ◽  
Qi Li ◽  
Jin Cui ◽  
Zeyu Li ◽  
Guang Yang ◽  
...  
Keyword(s):  
Energy Density ◽  
Polymer Nanocomposites ◽  
High Energy ◽  
High Energy Density ◽  
Dielectric Polymer

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.

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