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Updated: Jul 28, 2025

Application of a Coupling Agent to Improve the Dielectric Properties of Polymer-Based Nanocomposites
06:34

Application of a Coupling Agent to Improve the Dielectric Properties of Polymer-Based Nanocomposites

Published on: September 19, 2020

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创新的全有机介电复合材料用于介电电容,基于热力学兼容性,具有出色的储能性能

Yue Zhang1,2, Xin He2, Sen Li2

  • 1Key Laboratory of Engineering Dielectrics and Its Application, Ministry of Education, Harbin University of Science and Technology, Harbin 150080, People's Republic of China.

The Journal of chemical physics
|June 1, 2023
PubMed
概括

研究人员开发了一种全有机介电复合物,使用聚乙烯化物 (PVDF) 和乙烯 (CR-S) 来增强静电能量储存. CR-S/PVDF复合体显示了更好的断裂强度和能量密度,为先进电容器提供了一个有前途的替代方案.

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Dielectric Polarization in a Capacitor

The presence of a dielectric medium in a capacitor not only changes the voltage and capacitance but also affects the electric field. In general, dielectrics can be of two types: polar and nonpolar. In a polar dielectric, the positive and negative charges in the molecules are separated by a distance and hence have a permanent dipole moment. In contrast, no such charge separation exists in a nonpolar dielectric, however the nonpolar molecules get polarized in the presence of an external electric...
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An inductor is ingeniously crafted to accumulate energy within its magnetic field. This field is a direct result of the current that meanders through its coiled structure. When this current maintains a steady state, there is no detectable voltage across the inductor, prompting it to mimic the behavior of a short circuit when faced with direct current.
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In 1749, Benjamin Franklin coined the word battery for a series of capacitors connected to store energy. Capacitors store electric potential energy that can be released over a short time. This property means capacitors have a wide range of applications.
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