期刊論文

標題 Shape-stabilized poly(ethylene glycol) phase change materials with self-assembled network scaffolds for thermal energy storage
學年 109
學期 1
出版(發表)日期 2021/01/20
作品名稱 Shape-stabilized poly(ethylene glycol) phase change materials with self-assembled network scaffolds for thermal energy storage
作品名稱(其他語言)
著者 Wei-Chi Lai; Chun-Wai Chang; Chi-Yuan Hsueh
單位
出版者
著錄名稱、卷期、頁數 Polymer 213, 123196
摘要 We propose a facile method for preparing novel poly(ethylene glycol) (PEG) shape-stabilized phase change materials (PCMs) using self-assembled network scaffolds formed by gels for thermal energy storage. 1,3:2,4-dibenzylidene sorbitol (DBS) is capable of self-organizing into 3-D nanofibrillar networks in organic solvents to form gels at relatively low concentrations. In this study, we induced the formation of such nanofibrils in PEG. After PEG is heated to its melting temperature, the DBS gels (nanofibrillar structures) can capture most of the molten PEG, significantly stabilizing the shape and preventing leakage. The fabricated PCMs can sustain their shape up to at least until 96 °C, as determined using rheological measurement. The PEG with a molecular weight of 8000 g/mol containing DBS systems exhibited the best thermal properties, including latent heat, leakage percentage and thermal conductivity, which could be useful in developing novel phase change materials for thermal energy storage.
關鍵字 poly(ethylene glycol);Phase change material;Self-assembled;Gel
語言 英文
ISSN 1873-2291
期刊性質 國外
收錄於 SCI;
產學合作
通訊作者
審稿制度
國別 英國
公開徵稿
出版型式 ,電子版,紙本