Citation: YAN 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. doi: 10.11944/j.issn.1000-0518.2020.01.190209 shu

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,,

a.
College of Environmental Science and Engineering, Fujian Normal University, Fuzhou 350007, China
b.
Polymer Resources Green Recycling Engineering Research Center of the Ministry of Education, Fuzhou 350007, China
c.
College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, China
d.
Fuqing Branch of Fujian Normal University, Fuzhou 350300, China

Corresponding author: LI Hongzhou, lihongzhou@fjnu.edu.cn CHEN Qinghua, cqhuar@126.com
Received Date: 24 July 2019
Revised Date: 27 August 2019
Accepted Date: 10 October 2019

Fund Project: the National Natural Science Foundation of China 51903049the Foundation of Quangang Petrochemical Research Institute, Fujian Normal University No2018YJY03Supported by the National Natural Science Foundation of China(No.51903049), and the Foundation of Quangang Petrochemical Research Institute, Fujian Normal University(No2018YJY03)

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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.
- thermal conductivity,
- polyethylene glycol,
- phase change materials,
- boron nitride
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