Effects of Nanofilled Particle Forms and Dispersion Modes on Properties of Carbon-Based Energy Storage Composites

How to improve the thermal conductivity of phase change materials (PCMs) is always the key to thermal control technology. At present, the thermal conductivity of PCMs has two ways to improve: one is to fill the matrix with high thermal conductivity and the other is to fill nanoparticles. After combi...

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Main Authors: Jia Yu, Hui Li, Li Kong, Hongji Zhu, Qingshan Zhu, Haoqing Wang
Format: Article
Language:English
Published: Hindawi-Wiley 2020-01-01
Series:Advances in Polymer Technology
Online Access:http://dx.doi.org/10.1155/2020/6865497
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spelling doaj-7da39625f4a74e30a8ce51d5b7e8dc772020-11-25T02:13:44ZengHindawi-WileyAdvances in Polymer Technology0730-66791098-23292020-01-01202010.1155/2020/68654976865497Effects of Nanofilled Particle Forms and Dispersion Modes on Properties of Carbon-Based Energy Storage CompositesJia Yu0Hui Li1Li Kong2Hongji Zhu3Qingshan Zhu4Haoqing Wang5College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, ChinaCollege of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, ChinaCollege of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, ChinaCollege of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, ChinaCollege of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, ChinaCollege of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, ChinaHow to improve the thermal conductivity of phase change materials (PCMs) is always the key to thermal control technology. At present, the thermal conductivity of PCMs has two ways to improve: one is to fill the matrix with high thermal conductivity and the other is to fill nanoparticles. After combining the two methods, the choice of filled nano-SiO2, carbon nanotubes (CNTs), or graphene (GNPs) has different effects on the performance of carbon-based energy storage composites. Filling paraffin with foamed carbon increased the thermal conductivity of pure paraffin from 0.25 W/(m·K) to 8.3083 W/(m·K), an increase of 33.2 times. When the nanoparticle mass fraction is 5%, the enthalpy of GNP composites is 10 J·g-1 less than that of SiO2 composites. Under the same mass fraction, compared with the thermal conductivity enhancement effect of SiO2 composites, the thermal conductivity increase effects of CNTs and GNP composites are 6.7 and 15.8 times the thermal conductivity increase of SiO2 composites, respectively. The comparison of theoretical and experimental values shows that different nanoparticle forms and dispersion modes have different effects on the performance of carbon-based energy storage composites, among which GNPs have the greatest improvement in the thermal conductivity of carbon-based composites.http://dx.doi.org/10.1155/2020/6865497
collection DOAJ
language English
format Article
sources DOAJ
author Jia Yu
Hui Li
Li Kong
Hongji Zhu
Qingshan Zhu
Haoqing Wang
spellingShingle Jia Yu
Hui Li
Li Kong
Hongji Zhu
Qingshan Zhu
Haoqing Wang
Effects of Nanofilled Particle Forms and Dispersion Modes on Properties of Carbon-Based Energy Storage Composites
Advances in Polymer Technology
author_facet Jia Yu
Hui Li
Li Kong
Hongji Zhu
Qingshan Zhu
Haoqing Wang
author_sort Jia Yu
title Effects of Nanofilled Particle Forms and Dispersion Modes on Properties of Carbon-Based Energy Storage Composites
title_short Effects of Nanofilled Particle Forms and Dispersion Modes on Properties of Carbon-Based Energy Storage Composites
title_full Effects of Nanofilled Particle Forms and Dispersion Modes on Properties of Carbon-Based Energy Storage Composites
title_fullStr Effects of Nanofilled Particle Forms and Dispersion Modes on Properties of Carbon-Based Energy Storage Composites
title_full_unstemmed Effects of Nanofilled Particle Forms and Dispersion Modes on Properties of Carbon-Based Energy Storage Composites
title_sort effects of nanofilled particle forms and dispersion modes on properties of carbon-based energy storage composites
publisher Hindawi-Wiley
series Advances in Polymer Technology
issn 0730-6679
1098-2329
publishDate 2020-01-01
description How to improve the thermal conductivity of phase change materials (PCMs) is always the key to thermal control technology. At present, the thermal conductivity of PCMs has two ways to improve: one is to fill the matrix with high thermal conductivity and the other is to fill nanoparticles. After combining the two methods, the choice of filled nano-SiO2, carbon nanotubes (CNTs), or graphene (GNPs) has different effects on the performance of carbon-based energy storage composites. Filling paraffin with foamed carbon increased the thermal conductivity of pure paraffin from 0.25 W/(m·K) to 8.3083 W/(m·K), an increase of 33.2 times. When the nanoparticle mass fraction is 5%, the enthalpy of GNP composites is 10 J·g-1 less than that of SiO2 composites. Under the same mass fraction, compared with the thermal conductivity enhancement effect of SiO2 composites, the thermal conductivity increase effects of CNTs and GNP composites are 6.7 and 15.8 times the thermal conductivity increase of SiO2 composites, respectively. The comparison of theoretical and experimental values shows that different nanoparticle forms and dispersion modes have different effects on the performance of carbon-based energy storage composites, among which GNPs have the greatest improvement in the thermal conductivity of carbon-based composites.
url http://dx.doi.org/10.1155/2020/6865497
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