Thermal characterizations of the graphite nanosheets reinforced paraffin phase-change composites

被引：64

作者：

Chen, Yin-Ju ^{[1
]}

Duc-Dung Nguyen ^{[1
]}

Shen, Ming-Yuan ^{[2
,3
]}

Yip, Ming-Chuen ^{[2
]}

Tai, Nyan-Hwa ^{[1
]}

机构：

[1] Natl Tsing Hua Univ, Dept Mat Sci & Engn, Hsinchu 30013, Taiwan

[2] Natl Tsing Hua Univ, Dept Power Mech Engn, Hsinchu 30013, Taiwan

[3] Plast Ind Dev Ctr, Taichung 401, Taiwan

来源：

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2013年 / 44卷

关键词：

Polymer-matrix composites (PMCs); Thermal properties; Thermal analysis; CHANGE ENERGY-STORAGE; CONDUCTIVITY; MATRIX;

D O I：

10.1016/j.compositesa.2012.08.010

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Two paraffin composites filled separately with randomly distributed graphite nanosheets (R-GNs) and oriented graphite nanosheets (O-GNs) were fabricated, and their thermal properties and structural characteristics were investigated. The experimental results show that a conductive network at 1.0 wt.% graphite nanosheet (GN) loading was found. The thermal conductivities of the R-GNs/paraffin and the O-GNs/paraffin composites are 4.47 +/- 0.15 and 1.68 +/- 0.07 W/m K, respectively, when 5.0 wt.% GNs were introduced. The Maxwell-Euken model and the modified rule of mixtures model were proposed to predict the thermal conductivities of the R-GNs/paraffin and the O-GNs/paraffin composites, respectively. The melting point and the solid-liquid phase transition temperature of the R-GNs/paraffin composites are approximately 53 and 60 degrees C, respectively, and neither of these values was significantly affected by the presence of GNs. Decreases in the latent heat of the R-GNs/paraffin composites with increased GN loading were also found. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：40 / 46

页数：7

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