文献类型：期刊文献

英文题名：Phase-change smart lines based on paraffin-expanded graphite/polypropylene hollow fiber membrane composite phase change materials for heat storage

作者：Luo, Dajun Xiang, Li Sun, Xin Xie, Lan Zhou, Dengfeng Qin, Shuhao

第一作者：Luo, Dajun

通信作者：Qin, SH[1]

机构：[1]Guizhou Inst Technol, Sch Mat Sci & Met Engn, Guiyang 550003, Peoples R China;[2]Guizhou Univ, Coll Mat & Met, Guiyang 550025, Peoples R China;[3]Natl Engn Res Ctr Compounding & Modificat Polymer, Guiyang 550014, Peoples R China

第一机构：贵州理工学院材料与冶金工程学院

通信机构：corresponding author), Guizhou Univ, Coll Mat & Met, Guiyang 550025, Peoples R China.

年份：2020

卷号：197

外文期刊名：ENERGY

收录：;EI(收录号：20201008259149);Scopus(收录号：2-s2.0-85080107231);WOS:【SCI-EXPANDED(收录号:WOS:000527568200082)】；

基金：This work was supported by the National Natural Science Foundation of China (No. 51763003 and 21604016); Scientific Research Project of Introduced Talents of Guizhou University (No. 2016027); Outstanding Youth Program of Guizhou Province (No. 20170439178); Joint Research Program of Guizhou province (No. 20177251); The Guizhou Science Fund for Excellent Young Scholars (20195665); and Open Fund Program of Southwest University of Science and Technology (No. 18zxgk01).

语种：英文

外文关键词：Phase-change smart lines; Polypropylene hollow fiber membrane; Paraffin; Expanded graphite

摘要：In this paper, a series of novel flexible phase-change smart lines were fabricated by double encapsulating paraffin into polypropylene hollow fiber membranes (PPHEMs) and expanded graphite (EG) to overcome liquid leakage during phase transition and enhance thermal conductivity of paraffin. An available theoretical calculation method was developed to predict and evaluate the encapsulation ability of PPHFM. PPHFM after stretching 50% (PPHFM50) exhibited a considerable paraffin encapsulation capacity about 70.23 wt% (PP50-CPCM), and showed minimal impact on the phase change behavior of paraffin. PP50-CPCM was hence selected for injecting paraffin/expanded graphite to prepare phase-change smart lines (PEP-CPCMs) aiming at the high thermal conductivity and higher paraffin encapsulation capacity. The results indicated that the thermal conductivity of PEP-CPCMs with 2.08 wt% EG was obviously improved by 75%, and the maximum paraffin encapsulation capacity was 85.31 wt%. Moreover, the excellent thermal stability, thermal reliability and chemical compatibility of PEP-CPCMs were also confirmed. Interestingly, PEP-CPCMs were employed to twine the water cup (smart temperature adjustment cup). The results indicated that the flexible phase-change smart lines showed great potential in thermal energy storage applications. (C) 2020 Elsevier Ltd. All rights reserved.