Enhanced Energy Storage Properties of Polypropylene/Glycidyl Methacrylate Grafted Polypropylene/Nano-ZrO<sub>2</sub> Ternary System

Extensive research has focused on enhancing the energy storage density of polypropylene (PP) to meet the demands of high-power and compact electronic devices and electrical systems. However, there is a lack of studies addressing the delicate balance between energy storage density and dielectric loss...

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Main Authors: Chong Zhang, Zhaoliang Xing, Xin Chen, Shaowei Guo, Hongbo Liu, Lu Cheng, Wenfeng Liu
Format: Article
Language:English
Published: MDPI AG 2023-11-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/16/22/7621
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author Chong Zhang
Zhaoliang Xing
Xin Chen
Shaowei Guo
Hongbo Liu
Lu Cheng
Wenfeng Liu
author_facet Chong Zhang
Zhaoliang Xing
Xin Chen
Shaowei Guo
Hongbo Liu
Lu Cheng
Wenfeng Liu
author_sort Chong Zhang
collection DOAJ
description Extensive research has focused on enhancing the energy storage density of polypropylene (PP) to meet the demands of high-power and compact electronic devices and electrical systems. However, there is a lack of studies addressing the delicate balance between energy storage density and dielectric loss. Dielectric loss can lead to excessive heat generation, posing a threat to the operation of energy storage capacitors. In this study, PP grafted with glycidyl methacrylate (GMA) was used as a compatibilizer and incorporated into a PP/nano ZrO<sub>2</sub> blend to form a ternary system of PP/nano ZrO<sub>2</sub>/PP grafted GMA. A comparative study was conducted to analyze the effects of GMA grafting and individual doping of nano ZrO<sub>2</sub> on the dielectric performance of PP. The results demonstrate that the ternary system not only ensures a high breakdown voltage (382.29 MV/m) but also possesses a high dielectric constant (2.67), thereby achieving an energy storage density of 1.7275 J/cm<sup>3</sup> while maintaining low dielectric loss. Furthermore, grafting GMA introduces a significant number of deep traps, a phenomenon substantiated by the results of thermal stimulated depolarization current tests and molecular simulation calculations. However, the ternary system partially avoids the introduction of excessive deep traps associated with GMA grafting. This ternary system exhibits excellent energy storage performance, ease of fabrication, and stability, thereby enriching the research on polymer-based high-energy density dielectric materials.
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spelling doaj.art-4a532cb1522f4d35b0a1ab65af553c102023-11-24T14:40:34ZengMDPI AGEnergies1996-10732023-11-011622762110.3390/en16227621Enhanced Energy Storage Properties of Polypropylene/Glycidyl Methacrylate Grafted Polypropylene/Nano-ZrO<sub>2</sub> Ternary SystemChong Zhang0Zhaoliang Xing1Xin Chen2Shaowei Guo3Hongbo Liu4Lu Cheng5Wenfeng Liu6State Key Laboratory of Advanced Power Transmission Technology, State Grid Smart Grid Research Institute Co., Ltd., Beijing 102209, ChinaState Key Laboratory of Advanced Power Transmission Technology, State Grid Smart Grid Research Institute Co., Ltd., Beijing 102209, ChinaState Key Laboratory of Advanced Power Transmission Technology, State Grid Smart Grid Research Institute Co., Ltd., Beijing 102209, ChinaState Key Laboratory of Advanced Power Transmission Technology, State Grid Smart Grid Research Institute Co., Ltd., Beijing 102209, ChinaState Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University, Xi’an 710049, ChinaState Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University, Xi’an 710049, ChinaState Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University, Xi’an 710049, ChinaExtensive research has focused on enhancing the energy storage density of polypropylene (PP) to meet the demands of high-power and compact electronic devices and electrical systems. However, there is a lack of studies addressing the delicate balance between energy storage density and dielectric loss. Dielectric loss can lead to excessive heat generation, posing a threat to the operation of energy storage capacitors. In this study, PP grafted with glycidyl methacrylate (GMA) was used as a compatibilizer and incorporated into a PP/nano ZrO<sub>2</sub> blend to form a ternary system of PP/nano ZrO<sub>2</sub>/PP grafted GMA. A comparative study was conducted to analyze the effects of GMA grafting and individual doping of nano ZrO<sub>2</sub> on the dielectric performance of PP. The results demonstrate that the ternary system not only ensures a high breakdown voltage (382.29 MV/m) but also possesses a high dielectric constant (2.67), thereby achieving an energy storage density of 1.7275 J/cm<sup>3</sup> while maintaining low dielectric loss. Furthermore, grafting GMA introduces a significant number of deep traps, a phenomenon substantiated by the results of thermal stimulated depolarization current tests and molecular simulation calculations. However, the ternary system partially avoids the introduction of excessive deep traps associated with GMA grafting. This ternary system exhibits excellent energy storage performance, ease of fabrication, and stability, thereby enriching the research on polymer-based high-energy density dielectric materials.https://www.mdpi.com/1996-1073/16/22/7621polypropylenegraft modificationnano modificationelectrical propertyenergy storage property
spellingShingle Chong Zhang
Zhaoliang Xing
Xin Chen
Shaowei Guo
Hongbo Liu
Lu Cheng
Wenfeng Liu
Enhanced Energy Storage Properties of Polypropylene/Glycidyl Methacrylate Grafted Polypropylene/Nano-ZrO<sub>2</sub> Ternary System
Energies
polypropylene
graft modification
nano modification
electrical property
energy storage property
title Enhanced Energy Storage Properties of Polypropylene/Glycidyl Methacrylate Grafted Polypropylene/Nano-ZrO<sub>2</sub> Ternary System
title_full Enhanced Energy Storage Properties of Polypropylene/Glycidyl Methacrylate Grafted Polypropylene/Nano-ZrO<sub>2</sub> Ternary System
title_fullStr Enhanced Energy Storage Properties of Polypropylene/Glycidyl Methacrylate Grafted Polypropylene/Nano-ZrO<sub>2</sub> Ternary System
title_full_unstemmed Enhanced Energy Storage Properties of Polypropylene/Glycidyl Methacrylate Grafted Polypropylene/Nano-ZrO<sub>2</sub> Ternary System
title_short Enhanced Energy Storage Properties of Polypropylene/Glycidyl Methacrylate Grafted Polypropylene/Nano-ZrO<sub>2</sub> Ternary System
title_sort enhanced energy storage properties of polypropylene glycidyl methacrylate grafted polypropylene nano zro sub 2 sub ternary system
topic polypropylene
graft modification
nano modification
electrical property
energy storage property
url https://www.mdpi.com/1996-1073/16/22/7621
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