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Sepiolite supported stearic acid composites for thermal energy storage

机译:Sepiolite支撑硬脂酸复合材料,用于热储能

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摘要

In this paper, novel composite phase change materials (PCMs) were prepared by absorbing stearic acid (SA) into sepiolite (alpha-sepiolite, beta-sepiolite) via a vacuum impregnation method. The microstructures, thermal properties and thermal reliability of the composite PCMs were characterized by SEM, TG and DSC. The results indicate that the maximum SA absorption of alpha-sepiolite (alpha-SPL) and beta-sepiolite (beta-SPL) could reach as high as 60% and 49%. The latent heat of alpha-SPL/SA and beta-SPL/SA were 118.7 J g(-1) and 95.8 J g(-1), respectively. The thermal cyclic test indicated alpha-SPL/SA and beta-SPL/SA composites have excellent structural stability and thermal reliability. The thermal performance of the composite PCM gypsum boards was also evaluated. The composite PCMs could have a great potential application for thermal energy storage.
机译:本文通过真空浸渍方法将硬脂酸(SA)吸收到海硫酸盐(α-海泡石,β-海泡石)中制备了新的复合相变材料(PCM)。 复合PCM的微观结构,热性能和热可靠性,其特征在于SEM,TG和DSC。 结果表明,α-海泡石(α-SPL)和β-海泡石(Beta-SPL)的最大SA吸收可以达到60%和49%。 α-SPL / SA和BETA-SPL / SA的潜热分别为118.7Jg(-1)和95.8Jg(-1)。 热环循环试验指示的α-SPL / SA和β-SPL / SA复合材料具有出色的结构稳定性和热可靠性。 还评估了复合PCM石膏板的热性能。 复合PCM可具有巨大的潜在应用,用于热储能。

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  • 来源
    《RSC Advances》 |2016年第113期|共9页
  • 作者单位

    Cent S Univ Sch Minerals Proc &

    Bioengn Ctr Mineral Mat Changsha 410083 Hunan Peoples R China;

    Cent S Univ Sch Minerals Proc &

    Bioengn Ctr Mineral Mat Changsha 410083 Hunan Peoples R China;

    Cent S Univ Sch Minerals Proc &

    Bioengn Ctr Mineral Mat Changsha 410083 Hunan Peoples R China;

    Cent S Univ Sch Minerals Proc &

    Bioengn Ctr Mineral Mat Changsha 410083 Hunan Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

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