PCM纳米复合材料的稳定性研究

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2023-07-11 DOI:10.2478/ama-2023-0043

J. Cieśliński, Paulina Boroń, Maciej Fabrykiewicz

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引用次数: 0

摘要

摘要保证纳米复合材料的稳定性是纳米复合材料技术应用需要解决的关键问题。在本工作中，脂肪酸P1801作为基础相变材料（PCM）P1801，其主要成分为棕榈酸（58%）和硬脂酸（38%）。选择质量浓度为1%和5%的二氧化钛（TiO2）和氧化铝（Al2O3）作为纳米颗粒，而测试质量浓度为5%的聚乙烯吡咯烷酮（PVP）或油酸（OA）作为表面活性剂。基于在经历熔融和固化过程的样品中测量的温度分布，确定了测试的纳米复合材料中哪些是稳定的，哪些不是。此外，还提出了一种热测试来评估所制备的纳米PCM的稳定性，该测试包括根据精确给定的程序测量温度随时间的分布。

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Stability Investigation of the PCM Nanocomposites

Abstract Ensuring the stability is a key issue to be solved for the technical application of nanocomposites. In this work, fatty acid P1801 served as base phase change material (PCM)P1801, and its main ingredients are palmitic acid (58%) and stearic acid (38%). Titania (TiO2) and alumina (Al2O3) with mass concentrations of 1% and 5% were selected as nanoparticles, while polyvinylpyrrolidone (PVP) or oleic acid (OA) with mass concentrations of 5% were tested as surfactants. On the basis of the measured temperature distributions in the sample, which is subject to melting and solidification processes, it was determined which of the tested nanocomposites are stable and which are not. In addition, a thermal test was proposed to assess the stability of the produced nanoPCM, which consists in measuring the temperature distribution versus time according to a precisely given procedure.

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.