Non-covalently modified graphene@poly(ionic liquid) nanocomposite with high-temperature resistance and enhanced dielectric properties

You, Yuan; Wang, Xinhua; Liu, Xiaoyun; Qian, Jun; Zuo, Peiyuan; Zhuang, Qixin

doi:10.1016/j.compositesa.2021.106800

Cited by 18 publications

(9 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[ 40 ] Another example of one‐pot in situ polymerization is synthesis of reduced graphene oxide (rGO)@poly(ionic liquide) (PIL)/PBO where 1‐vinyl‐3‐aminopropylimidazole tetrafluoroborate (IL) converted to poly(1‐vinyl‐3‐aminopropyl imidazolium ionic liquid) (PIL‐NH 2 ) by in situ free radical polymerization where PIL attached to rGO by π – π conjugation with improved dielectric properties, thermal stability, and high energy density. [ 41 ] Shamsuri et al [ 3c ] provided a review on the employment of ILs as fillers that form a biodegradable polymer composite. Such ILs‐based biodegradable polymer composites were found to exhibit dual benefits, including improvement in properties and environment‐friendly polymer matrix.…”

Section: General Overview Of Ionic Liquidsmentioning

confidence: 99%

Ionic Liquid‐Based Polymer Nanocomposites for Sensors, Energy, Biomedicine, and Environmental Applications: Roadmap to the Future

et al. 2022

View full text Add to dashboard Cite

Current interest toward ionic liquids (ILs) stems from some of their novel characteristics, like low vapor pressure, thermal stability, and nonflammability, integrated through high ionic conductivity and broad range of electrochemical strength. Nowadays, ionic liquids represent a new category of chemical‐based compounds for developing superior and multifunctional substances with potential in several fields. ILs can be used in solvents such as salt electrolyte and additional materials. By adding functional physiochemical characteristics, a variety of IL‐based electrolytes can also be used for energy storage purposes. It is hoped that the present review will supply guidance for future research focused on IL‐based polymer nanocomposites electrolytes for sensors, high performance, biomedicine, and environmental applications. Additionally, a comprehensive overview about the polymer‐based composites’ ILs components, including a classification of the types of polymer matrix available is provided in this review. More focus is placed upon ILs‐based polymeric nanocomposites used in multiple applications such as electrochemical biosensors, energy‐related materials, biomedicine, actuators, environmental, and the aviation and aerospace industries. At last, existing challenges and prospects in this field are discussed and concluding remarks are provided.

show abstract

Section: General Overview Of Ionic Liquidsmentioning

confidence: 99%

Ionic Liquid‐Based Polymer Nanocomposites for Sensors, Energy, Biomedicine, and Environmental Applications: Roadmap to the Future

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Today, polymer film capacitors are attracting more and more attention in the fields of hybrid electric vehicles, converter valves, lasers, electromagnetic weapons, and wearable electronics due to their outstanding advantages such as ultrafast charge–discharge rates and ultrahigh instantaneous energy density. − However, the low dielectric constant of pure polymer films significantly limits their energy storage properties. To address this issue, many studies have focused on polymer nanocomposites with inorganic fillers to improve the energy storage property. − Barium titanate (BT) nanoparticles are commonly used to fabricate nanocomposites due to their intrinsic high dielectric constant and low dielectric loss.…”

Section: Introductionmentioning

confidence: 99%

BaTiO₃ Nanoparticles Coated with Polyurethane and SiO₂ for Enhanced Dielectric Properties

Wang

You

Chen

et al. 2023

ACS Appl. Nano Mater.

Self Cite

View full text Add to dashboard Cite

Core−shell structures are commonly employed in dielectric nanocomposites to improve the energy storage capacity of polymers. However, few studies have focused on organic−inorganic double-layered shell structures. Thus, there is an urgent need to elucidate the detailed effects of the flexible segment of polymer shells and inorganic shells on the dielectric properties. Herein, we synthesized a hierarchical core−double shell BT/PU/SiO 2 nanofiller with a thickness of 3−5 nm PU and 15 nm SiO 2 layers. This unique shell structure possesses a gradient permittivity that regularly decreases from the inside to the outside of shells. Detailed electrical characterizations reveal that the intermediate PU shell with shorter flexible segments can limit the carrier migration and thus decrease the dielectric loss. The interfacial polarization in double-layered BT/PU/SiO 2 is beneficial to improve the dielectric constant of the as-prepared nanocomposites. COMSOL Multiphysics simulation results also confirm that the delicate structure enables the internal electric field more homogeneous, which enhances the breakdown strength owing to its gradient dielectric constant. In addition, the dielectric loss of BT/PU/SiO 2 -PVDF is 0.032 when the filling is <4 wt %, which is only 45% compared with that of BT-PVDF. Meanwhile, the energy density of the nanocomposite reaches 7.41 J cm −3 , which is 1.74 times higher than that of pure PVDF (2.7 J cm −3 ). Accordingly, our current work provides insight into the design of hierarchical core−double shell nanoparticles and their derived polymer nanocomposite capacitors for high-energy-density storage applications.

show abstract

“…Moreover, due to the inevitable contact of conductive fillers after the percolation threshold, the dielectric loss of those composite materials also increased. Carbon-based conductive materials such as carbon nanotube (CNT) − and graphene − possess very high electrical conductivity and can be modified by reagents and thus can form chemical connections with integrated polymer matrix. They can improve the dielectric properties of the composite material at a considerably low integration ratio.…”

Section: Introductionmentioning

confidence: 99%

Amine-Functionalized Reduced Graphene Oxide/Polyimide Nanocomposite as a Material with High Dielectric Constant and Thermal Resistance

Zhang

Liu

Zuo

et al. 2023

ACS Appl. Nano Mater.

Self Cite

View full text Add to dashboard Cite

With the development of renewable energy resources, polymer-based dielectric materials, as key components in energy storage devices with optimized dielectric property, high-temperature stability, and good processibility, are highly demanded. In this study, p-phenylenediamine (PPD)-modified and l-ascorbic acid (LAA)-reduced graphene oxide (NH2-CRG) nanosheets with significant chemical functionalization and significantly improved dispersity were prepared. Also, polyimide was chosen to be the polymer matrix due to its high-temperature resistance, chemical inertness, and excellent mechanical property. By incorporating NH2-CRG into the PI polymer matrix via in situ polymerization, 0.8 wt % NH2-CRG/PI composite material with a dielectric constant as high as 839 and a breakdown strength of 80 kV·mm–1 was obtained. Meanwhile, the 5 wt % weight loss temperature of 0.8 wt % NH2-CRG/PI witnessed a 17.6 °C increase compared to pure PI. This work provided a promising strategy to prepare graphene-based materials for high-dielectric applications and a realizable process of fabricating polymer-based dielectric composite materials.

show abstract

Non-covalently modified graphene@poly(ionic liquid) nanocomposite with high-temperature resistance and enhanced dielectric properties

Cited by 18 publications

References 52 publications

Ionic Liquid‐Based Polymer Nanocomposites for Sensors, Energy, Biomedicine, and Environmental Applications: Roadmap to the Future

Ionic Liquid‐Based Polymer Nanocomposites for Sensors, Energy, Biomedicine, and Environmental Applications: Roadmap to the Future

BaTiO₃ Nanoparticles Coated with Polyurethane and SiO₂ for Enhanced Dielectric Properties

Amine-Functionalized Reduced Graphene Oxide/Polyimide Nanocomposite as a Material with High Dielectric Constant and Thermal Resistance

Contact Info

Product

Resources

About

Non-covalently modified graphene@poly(ionic liquid) nanocomposite with high-temperature resistance and enhanced dielectric properties

Cited by 18 publications

References 52 publications

Ionic Liquid‐Based Polymer Nanocomposites for Sensors, Energy, Biomedicine, and Environmental Applications: Roadmap to the Future

Ionic Liquid‐Based Polymer Nanocomposites for Sensors, Energy, Biomedicine, and Environmental Applications: Roadmap to the Future

BaTiO3 Nanoparticles Coated with Polyurethane and SiO2 for Enhanced Dielectric Properties

Amine-Functionalized Reduced Graphene Oxide/Polyimide Nanocomposite as a Material with High Dielectric Constant and Thermal Resistance

Contact Info

Product

Resources

About

BaTiO₃ Nanoparticles Coated with Polyurethane and SiO₂ for Enhanced Dielectric Properties