Issue 37, 2022, Issue in Progress

Preparation and characterization of lauric acid–stearic acid/expanded perlite as a composite phase change material

Abstract

Rapid energy consumption stimulates the development of energy-saving materials. In this work, the L–S eutectic mixture used as a PCM was compounded with EP via vacuum adsorption to synthesize LS/EP CPCM. The maximum mass adsorption rate of EP on L–S is determined to be 70% via leakage experiments. The microscopic morphology, chemical, and crystal structure were characterized using scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), and X-ray diffraction (XRD), respectively. The phase change properties were measured by differential scanning calorimetry (DSC). The melting temperature of LS/EP is 37.79 °C, with a latent heat of 126.05 J g−1, and it has a crystallinity of over 90%. The thermal decomposition was evaluated by TGA. The initial decomposition temperature is 132.20 °C for LS/EP. In addition, the results of accelerated phase change cycling experiments showed that LS/EP CPCM has good reliability.

Graphical abstract: Preparation and characterization of lauric acid–stearic acid/expanded perlite as a composite phase change material

Article information

Article type
Paper
Submitted
11 Apr 2022
Accepted
09 Aug 2022
First published
23 Aug 2022
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2022,12, 23860-23868

Preparation and characterization of lauric acid–stearic acid/expanded perlite as a composite phase change material

X. Liu, Y. Zhao, Z. Fan, Y. Shi and D. Jiang, RSC Adv., 2022, 12, 23860 DOI: 10.1039/D2RA02345H

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