Versatility of polyethylene glycol (PEG) in designing solid–solid phase change materials (PCMs) for thermal management and their application to innovative technologies

Abstract

A review focussed on the preparation methods and applications of polyethylene glycol (PEG) based solid–solid phase change materials (PCMs).

Facile functionalized mesoporous silica using biomimetic method as new matrix for preparation of shape‐stabilized phase‐change material with improved enthalpy

“…8 Polyethylene glycol (PEG), as a sort of organic PCMs, has attracted great interests because of its excellent physical and chemical properties, including appropriate phase transition temperature, large phase transition enthalpy, favorable chemical and thermal stability with no super cooling, or volume change in the phase-change process. [10][11][12] There were a number of materials that were applied to fix organic PCMs, including olive pomace powder, titanium dioxide, and silica molecular sieves. To overcome this defect, shapestabilization supports were introduced to synthesize shape-stabilized PCMs (ss-PCMs) to avoid the leakage of organic PCMs.…”

“…To overcome this defect, shapestabilization supports were introduced to synthesize shape-stabilized PCMs (ss-PCMs) to avoid the leakage of organic PCMs. [10][11][12] There were a number of materials that were applied to fix organic PCMs, including olive pomace powder, titanium dioxide, and silica molecular sieves. 13 Wang et al utilized expanded graphite as the matrix of caprylic-nonanoic acid to prepare ss-PCM of CA-NA/ EG, which had perfect thermal stability and acceptable latent heat.…”

End group modification of polyethylene glycol (PEG): A novel method to mitigate the supercooling of PEG as phase change material

“…Polyethylene glycol (PEG) serving as a type of organic PCM is very promising for thermal energy storage because of its relatively high latent heat, suitable phase change temperature, noncorrosiveness, and excellent chemical stability . PEG is used in its bulk form, which undergoes solid–liquid phase transition, or in shape‐stabilized form, which undergoes solid–solid phase transition to avoid leakage.…”

“…Polyethylene glycol (PEG) serving as a type of organic PCM is very promising for thermal energy storage because of its relatively high latent heat, suitable phase change temperature, noncorrosiveness, and excellent chemical stability. 18 PEG is used in its bulk form, which undergoes solid-liquid phase transition, or in shapestabilized form, which undergoes solid-solid phase transition to avoid leakage. Various porous material can act as form stabilizer, such as porous carbon materials, 19 clay mineral, 20 and mesoporous matrices, 21 to prepare shape stabilized (ie, form stable) PEG PCMs.…”

Polyester‐based phase change materials with flexible poly(ethylene glycol) chains for thermal energy storage

“…Generally, the sources of renewable energy can vary according to location and time. To address the differences, many energy storage techniques such as sensible heat storage, latent heat storage (LHS), and battery systems were developed . Among them, LHS using phase change materials (PCMs) is an economical, feasible, and green technology because of their properties of reversible thermal storage capacity, modest price, and no environmental pollution during use.…”