Development and characterization of new phase change concrete based on different composite phase change materials

IF 6.3 2区材料科学 Q2 ENERGY & FUELS

Solar Energy Materials and Solar Cells Pub Date : 2025-04-14 DOI:10.1016/j.solmat.2025.113629

Dongpeng Zhu , Yue Han , Tao Xu , Lingzhi Zhong , Yanliang Du

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Abstract

In this study, two composite phase change materials (CPCMs) were prepared by using two different phase change materials (PCMs) as matrix combined with expanded perlite (EP) adsorption, respectively. To enhance the cyclic stability of the CPCMs, their surfaces were encapsulated and then mixed with building cement to create a novel phase change concrete, aiming to improve the safety and stability of concrete subgrades under temperature fluctuations. The adsorption properties, physical and chemical characteristics, energy storage capabilities, thermal stability, and encapsulation effects of the two CPCMs were comprehensively analyzed. Additionally, the mechanical and thermal properties of the two phase change concretes were tested and evaluated. The results demonstrated good physical adsorption and chemical compatibility between EP and both PCMs. The epoxy resin-encapsulated composite PCMs (ER-CPCMs) showed strong cyclic stability. The developed phase change concretes effectively mitigated the thermal shock effects caused by temperature increases on road subgrades.

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基于不同复合相变材料的新型相变混凝土的研制与表征

本研究以两种不同的相变材料（PCMs）为基体，分别结合膨胀珍珠岩（EP）吸附制备了两种复合相变材料（CPCMs）。为了增强cpcm的循环稳定性，将其表面包裹起来，然后与建筑水泥混合，形成一种新型相变混凝土，旨在提高混凝土路基在温度波动下的安全性和稳定性。综合分析了两种cpcm的吸附性能、理化特性、储能性能、热稳定性和包封效果。此外，对两种相变混凝土的力学性能和热性能进行了测试和评价。结果表明，EP与两种PCMs具有良好的物理吸附和化学相容性。环氧树脂包封复合PCMs （ER-CPCMs）具有较强的循环稳定性。所研制的相变混凝土有效地缓解了路面温度升高引起的热冲击效应。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Solar Energy Materials and Solar Cells 工程技术-材料科学：综合

CiteScore

12.60

自引率

11.60%

发文量

513

审稿时长

47 days

期刊介绍： Solar Energy Materials & Solar Cells is intended as a vehicle for the dissemination of research results on materials science and technology related to photovoltaic, photothermal and photoelectrochemical solar energy conversion. Materials science is taken in the broadest possible sense and encompasses physics, chemistry, optics, materials fabrication and analysis for all types of materials.