PEG/SiO2-Al2O3 hybrid form-stable phase change materials with enhanced thermal conductivity

Tang Bingtao; Wu Cheng; Qiu MeigeZhang XiwenZhang Shufen

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PEG/SiO2-Al2O3 hybrid form-stable phase change materials with enhanced thermal conductivity

机译：PEG/SiO2-Al2O3 hybrid form-stable phase change materials with enhanced thermal conductivity

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The thermal conductivity of form-stable PEG/SiO2 phase change material (PCM) was enhanced by in situ doping of Al2O3 using an ultrasound-assisted sol-gel method. Fourier transform infrared spectroscopy (FT-IR) was used to characterize the structure, and the crystal performance was characterized by the X-ray diffraction (XRD). Differential scanning calorimetry (DSC) and thermogravimetric analyzer (TGA) were used to determine the thermal properties. The phase change enthalpy of PEG/SiO2-Al2O3 reached 124J g(-1), and thermal conductivity improved by 12.8 for 3.3 wt Al2O3 in the PCM compared with PEG/SiO2. The hybrid PCM has excellent thermal stability and form-stable effects. Crown Copyright (C) 2014 Published by Elsevier B.V. All rights reserved.

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来源
《Materials Chemistry and Physics》 |2014年第2期|162-167|共6页
作者
Tang Bingtao; Wu Cheng; Qiu MeigeZhang XiwenZhang Shufen;
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作者单位

Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116024, Peoples R China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种英语
中图分类工程基础科学;工程材料学;
关键词
Composite material; Sol-gel growth; Phase transition; Thermal conductivity; ACID/EXPANDED PERLITE COMPOSITE; ENERGY-STORAGE; SOLID DISPERSIONS; POLY(ETHYLENE GLYCOL); PCM; RELIABILITY; DISSOLUTION; CATALYST; SYSTEMS; FILMS;

PEG/SiO2-Al2O3 hybrid form-stable phase change materials with enhanced thermal conductivity

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