Preparation and Properties of Thermal Management Materials for Electronic Devices Using Stearic Acid/Expanded Graphite Composite Phase Change Material with Enhanced Thermal Conductivity
Year: 2025
Type: article
Abstract: It is highly feasible to utilize phase change energy storage technology to construct a phase change material (PCM)‐based thermal management system for electronic devices. In this paper, stearic acid (SA) was used as the PCM, and expanded graphite (EG) was chosen as the carrier to prepare SA/EG CPCM. The results showed that EG could prevent the melted SA from leaking, and the combination between SA and EG was only physical. When the mass fraction of EG was 11%, the SA/EG CPCM had good shape stability with a phase change temperature ( T m ) of 67.2 °C, a phase change enthalpy (∆ H m ) of 204.4 J/g, and a significantly increased in thermal conductivity (6.432 W/(m·K)). In addition, simulation test experiments showed that the peak value of the heating surface was weakened by about 20 °C in the heating stage after loading the CPCM on the electronic device. Therefore, the resultant SA/EG CPCM in this work had great application value.
Source: ChemistrySelect
Authors: Jiayue Lao, Wanwan Fu, Jintao Ma, Ning Xia, Zhili Zhao, Jiesheng Liu, Hao Peng, Tao Fang
Institution: Wuhan Polytechnic University
Language: English
Subfield: Mechanical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W4408373863