数字农科院2.0

Preparation and thermal performance of 1,6-hexanediol/SiO2 form-stable composite phase change materials

文献类型： 外文期刊

作者： Zheng, Rui;Cai, Zhengyu;Shen, Jianfen;Wang, Chaoming;Xie, Shuaiao;Qi, Zhiyong

作者机构：

关键词： 1;6-Hexanediol;Sol-gel method;Form-stable;Composite;Phase change material

期刊名称： POLYMER BULLETIN

ISSN： 0170-0839

年卷期： 2023 年

页码：

收录情况： SCIE（2023版） ; ; EI（2023版）

摘要： The development of thermal energy storage materials applied in various fields has been attracting considerable attention in recent years. In this paper, a series of 1,6-hexanediol (HDL)/silicon dioxide (SiO2) form-stable composite phase change materials (fs-CPCMs) with various mass percentage of HDL loadings were made through sol-gel technique. For HDL/SiO2 fs-CPCMs, HDL was served as PCM, and silica gel was acted as the supporting matrix to keep a stable state without leakage of the composites even the temperature was over 85 & DEG;C. The results from form-stability test and DSC measurements showed that the as-prepared fs-CPCM with the mass fraction of HDL at 70 wt% presented good form-stability, suitable melting point (43.5 & DEG;C), and reasonable fusion enthalpy of 130.9 J/g. Fourier transform infrared (FT-IR) spectroscopy indicated that only physical adsorption existed between the HDL and silica gel. Moreover, the thermal performance tests showed that the thermal energy storage and release rates of the as-prepared HDL/SiO2 fs-CPCM was enhanced compared to pure HDL. In summary, the as-prepared fs-CPCMs exhibit reasonable latent heats, good thermal stabilities, and reliability, which are promising candidates for energy-saving construction materials.

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