Premium
Hydrate salt/self‐curing acrylic resin form‐stable phase change materials with enhanced surface stability and thermal properties via the incorporation of graphene oxide
Author(s) -
Liu Yushi,
Yu Kunyang,
Xie Mingjun,
Lu Shuang,
Yang Yingzi,
Wang Hui,
Jia Hanxi
Publication year - 2020
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.5342
Subject(s) - materials science , composite material , composite number , thermal stability , graphene , eutectic system , curing (chemistry) , latent heat , thermal conductivity , thermal energy storage , phase change material , oxide , chemical engineering , thermal , nanotechnology , thermodynamics , microstructure , physics , engineering , metallurgy
Summary This work presents a novel eutectic hydrate salt/self‐curing acrylic resin form‐stable phase change materials (PCMs) composite (EHS/SCR) with favorable form‐stable performances for heat energy storage. Further, to improve the surface stability, latent heat and thermal conductivity of the EHS/SCR particles, graphene oxide (GO) used as cladding materials is incorporated onto the surface of the EHS/SCR particles to prepare the GO modified EHS/SCR phase change composite (EGO). The obtained results indicate that the GO‐targeted absorption model has achieved the enhancements in stability and thermal properties of EHS/SCR while making use of GO in an efficient and economical way. To be specific, with the introduction of GO of only 1.07 wt%, the thermal conductivity of 0.508 W/m·K is achieved, the value shows a significant rise of 128.6% compared with the EHS/SCR of 0.222 W/m·K. Additionally, the maximum latent heat of EGO‐6 is up to 90.4 J/g, which exhibits a 3.19‐fold increase compared against that of the uncoated EHS/SCR. Moreover, the prepared EGO composite PCM remain a good thermal cycling reliability after 300 thermal cycles. This work provides a novel opportunity to improve the performance of form‐stable PCM composites with an intelligent manufacture‐oriented pattern.