文献类型：期刊文献

中文题名：石蜡基核壳结构相变储能复合材料的制备及性能

英文题名：Preparation and Properties of Paraffin-Based Core-Shell Phase Change Energy Storage Composites

作者：何绪权[1];王政华[2];张玲[1];李春忠[1]

机构：[1]上海多级结构纳米材料工程技术研究中心,华东理工大学材料科学与工程学院,上海200237;[2]上海汉特工程塑料有限公司,上海201108

年份：2022

卷号：48

期号：4

起止页码：467

中文期刊名：华东理工大学学报（自然科学版）

外文期刊名：Journal of East China University of Science and Technology

收录：Scopus;北大核心:【北大核心2020】；CSCD:【CSCD_E2021_2022】；

基金：国家自然科学基金(21878092,21838003);上海市教育委员会科研创新计划;上海市优秀学术/技术带头人计划(19XD1401400)。

语种：中文

中文关键词：相变储能复合材料;微胶囊;模压成型;宏观核-壳结构

外文关键词：phase change energy storage composites;microcapsule;mould pressure forming;macroscopic coreshell structure

摘要：将石蜡熔融浸渍在膨胀石墨(EG)中得到核组分(EG-Paraffin),将制得的Paraffin@SiO_(2)微胶囊填充在环氧树脂(Ep)中得到壳组分(Ep-Paraffin@SiO_(2)),然后通过简单的模压成型制备了具有宏观核-壳结构的相变复合材料(EG-Paraffin/Ep-Paraffin@SiO_(2))。实验结果表明,这种宏观的核-壳结构赋予了相变复合材料优异的防泄漏性能和形状稳定性。壳组分中的微胶囊使相变复合材料保持较高的焓值(大于144 J/g)。而核组分中的膨胀石墨一方面能够有效封装石蜡,另一方面可以大大提升相变复合材料的传热速率。
The core component(EG-Paraffin)was obtained by impregnation of Paraffin in expanded graphite(EG),and the shell component(Ep-Paraffin@SiO_(2))was obtained by filling the obtained Paraffin@SiO_(2)microcapsules into epoxy resin.The EG-Paraffin/Ep-Paraffin@SiO_(2)phase change composite with macroscopic core-shell structure was prepared by simple molding.The experimental results showed that the macroscopic core-shell structure endowed the phase change composite with excellent leak-proof performance and shape stability.The microcapsules in the shell component maintained a high enthalpy(greater than 144 J/g)of the phase change composite.On the one hand,EG in the core component could encapsulate the paraffin effectively;On the other hand,the heat transfer rate of the phase change composites could be greatly improved.The excellent comprehensive performance of this phase change composite had great application potential in the field of thermal energy storage and thermal management.