Properties of Thermal Conductivity Enhanced Polyethylene Glycol-Based Phase Change Composites

doi:10.11944/j.issn.1000-0518.2020.01.190209

Chinese Journal of Applied Chemistry ›› 2020, Vol. 37 ›› Issue (1): 46-53.DOI: 10.11944/j.issn.1000-0518.2020.01.190209

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Properties of Thermal Conductivity Enhanced Polyethylene Glycol-Based Phase Change Composites

YAN Pinping^a^b,LUO Fubin^a^b,HUANG Baoquan^a^b,XIAO Liren^b^c,QIAN Qingrong^a^b,LI Hongzhou^a^*(),CHEN Qinghua^a^b^d^*()

^aCollege of Environmental Science and Engineering,Fujian Normal University,Fuzhou 350007,China
^bPolymer Resources Green Recycling Engineering Research Center ofthe Ministry of Education,Fuzhou 350007,China
^cCollege of Chemistry and Materials Science,Fujian Normal University,Fuzhou 350007,China
^dFuqing Branch of Fujian Normal University,Fuzhou 350300,China

Received:2019-07-24 Accepted:2019-10-10 Published:2020-01-08 Online:2020-01-08
Contact: LI Hongzhou,CHEN Qinghua
Supported by:
Supported by the National Natural Science Foundation of China(No.51903049), and the Foundation of Quangang Petrochemical Research Institute, Fujian Normal University(No2018YJY03)

Abstract

Abstract:

In this study, thermally conductive phase change composites materials was prepared based on polyethylene glycol (PEG) and inorganic fillers via the molten blending method. The microstructure, thermal conductivity and phase transition performance of the prepared composites were investigated by scanning electronic microscopy (SEM), thermal constant analyzer, differential scanning calorimetry (DSC), infrared thermal imaging and thermogravimetric analysis. The results show that, compared with calcium carbonate and alumina, boron nitride can more significantly improve the thermal conductivity of PEG at the same mass fraction. When the mass fraction of BN is 40%, the thermal conductivity of composites can reach 3.40 W/(m·K). Simultaneously, flake boron nitride can effectively limit the leakage of PEG and maintain the initially shapes well upon long time heating, and maintain the shape stability of the composite.

Key words: thermal conductivity, polyethylene glycol, phase change materials, boron nitride

AN Pinping, LUO Fubin, HUANG Baoquan, XIAO Liren, QIAN Qingrong, LI Hongzhou, CHEN Qinghua. Properties of Thermal Conductivity Enhanced Polyethylene Glycol-Based Phase Change Composites[J]. Chinese Journal of Applied Chemistry, 2020, 37(1): 46-53.

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Properties of Thermal Conductivity Enhanced Polyethylene Glycol-Based Phase Change Composites

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