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Novel semi‐interpenetrating network structural phase change composites with high phase change enthalpy
Author(s) -
Zhang Yuang,
Xiu Jinghai,
Tang Bingtao,
Lu Rongwen,
Zhang Shufen
Publication year - 2018
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.15956
Subject(s) - enthalpy , polyethylene glycol , materials science , peg ratio , phase change , phase (matter) , composite material , polymer network , polymer , phase change material , latent heat , phase transition , enthalpy of fusion , network structure , interpenetrating polymer network , thermodynamics , chemical engineering , chemistry , organic chemistry , computer science , finance , melting point , machine learning , engineering , economics , physics
High phase change enthalpy, controllable temperature, and stable shape can expand the application of phase change materials (PCMs) in energy storage. In this study, a series of novel form‐stable PCMs with high phase change enthalpy (169–195 J/g) and controllable temperature (45.3–61.4°C) were prepared. The PCMs exhibited a semi‐interpenetrating polymer network (semi‐IPN) structure resulting from the combination of polyethylene glycol (PEG) and a three‐dimensional (3‐D) network gel. The gel itself featured an inherent phase change characteristic and a 3‐D network structure. Thus, it improved the phase transition enthalpy of the materials and facilitated the formation of a semi‐IPN that endowed the materials with excellent form‐stable properties. In addition, the latent heat of the composites (169–195 J/g) is much higher than most of the previously reported composites using PEG as phase change component (68–132 J/g). © 2017 American Institute of Chemical Engineers AIChE J , 64: 688–696, 2018