Revolutionizing High‐Temperature Electrical Properties of Epoxy Resin via Tailoring Weak Conjugation Rigid Structures DOI
Jie Li, Boya Zhang, Xinghua Zhang

et al.

Small, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 18, 2024

The escalating demand for high-power and compact-size advanced electronic devices power systems necessitates polymers to exhibit superior electrical properties even under harsh environments. However, reconciling the seemingly contradictory attributes of excellent thermal stability poses a formidable challenge current epoxy polymer (EP) materials their applications. To meet need, here two classes bi-aryl diamine curing agents are described that enable well-balanced dielectric with functional bridging groups. A weak conjugation system in highly thermally stable an aromatic backbone is constructed, using electron-modulating groups immobilize intramolecular free carriers by tailoring trap sites, bulky prevent molecular stacking inhibit intermolecular charge transport. resultant exhibits volume resistance 7.45 × 10

Language: Английский

Aramid nanofibers at ultralow loadings: driving significant multifunctionality in epoxy composite dielectrics DOI Creative Commons

Haowen Yuan,

Zi Wang, Di Lan

et al.

Advanced Composites and Hybrid Materials, Journal Year: 2025, Volume and Issue: 8(1)

Published: Feb. 1, 2025

Language: Английский

Citations

14
Recent Advances in Architectural Designs and Fabrication Strategies of 2D Fillers in Polymer-based Dielectric Nanocomposites DOI

Tahreem Zahra,

Sung‐Ryong Kim

Materials Today Energy, Journal Year: 2025, Volume and Issue: 48, P. 101800 - 101800

Published: Jan. 5, 2025

Language: Английский

Citations

3
Benzene Ring Structural Design Strategy toward Well-balanced Thermal and Electrical Properties in Epoxy Dielectric Polymers DOI
Jie Li, Boya Zhang,

Xiao Jing Yuan

et al.

Composites Part B Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 112308 - 112308

Published: Feb. 1, 2025

Language: Английский

Citations

1
Dielectric properties of green synthesized Ag-doped ZnO NPs in epoxy resin polymer nanocomposites DOI

Jaivik Pathak,

Unnati Joshi, Prince Jain

et al.

Journal of Polymer Research, Journal Year: 2025, Volume and Issue: 32(4)

Published: March 20, 2025

Language: Английский

Citations

1
Low frequency dielectric analysis for understanding water absorption characteristics of epoxy nanocomposites DOI
Rashmi Aradhya, B. M. Madhu,

J. Sundara Rajan

et al.

Polymer Composites, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Abstract Nanocomposites are versatile multifunctional engineering materials. For electrical applications, diminishing water diffusion and optimization of properties challenging. Low frequency dielectric measurements preferred for the assessment because dominant low response in presence water. Epoxy composites with organically modified montmorillonite 2, 5, 7 wt% investigated. Filler at 5 is observed to be optimal, a 28% reduction coefficient. Higher filler content decreases real permittivity due interfacial polarization, 240 h reveals minimal dependence permittivity. The relaxation peak imaginary occurs 0.08 Hz wt%, higher frequencies other changes matrix interactions conductivity. Water tends decrease AC conductivity not influenced by it ranges from 10 −10 −9 S/m over −4 Hz–1 kHz, its variations lower significant. differences nanocomposites confirmed using FTIR analysis. multi‐core shell model correlated nanocomposites. utility analysis demonstrated diffusion. Key application areas estimation mechanisms an enabler development data analytics machine learning improving quality Highlights OMMT addition offers optimal barrier performance epoxy composites. Surface‐modified enhances distribution adhesion. Dielectric loss peaks shift content. remains stable –10 across frequencies. Low‐frequency accurately models absorption.

Language: Английский

Citations

0
Design of hBN/nano Al2O3 epoxy composites with enhanced thermally conductive and dielectric properties DOI
Haohuan Wang, Wen Gong, Ying Yuan

et al.

Journal of Materials Science Materials in Electronics, Journal Year: 2024, Volume and Issue: 35(27)

Published: Sept. 1, 2024

Language: Английский

Citations

1
Revolutionizing High‐Temperature Electrical Properties of Epoxy Resin via Tailoring Weak Conjugation Rigid Structures DOI
Jie Li, Boya Zhang, Xinghua Zhang

et al.

Small, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 18, 2024

The escalating demand for high-power and compact-size advanced electronic devices power systems necessitates polymers to exhibit superior electrical properties even under harsh environments. However, reconciling the seemingly contradictory attributes of excellent thermal stability poses a formidable challenge current epoxy polymer (EP) materials their applications. To meet need, here two classes bi-aryl diamine curing agents are described that enable well-balanced dielectric with functional bridging groups. A weak conjugation system in highly thermally stable an aromatic backbone is constructed, using electron-modulating groups immobilize intramolecular free carriers by tailoring trap sites, bulky prevent molecular stacking inhibit intermolecular charge transport. resultant exhibits volume resistance 7.45 × 10

Language: Английский

Citations

0