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PolyHIPE composite based‐form stable phase change material for thermal energy storage
Author(s) -
Mert Hatice Hande
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.5390
Subject(s) - dynamic mechanical analysis , differential scanning calorimetry , materials science , composite number , phase change material , thermal energy storage , thermal stability , composite material , hexadecane , scanning electron microscope , dynamic modulus , chemical engineering , thermal , chemistry , polymer , organic chemistry , thermodynamics , physics , engineering
Summary A novel shape‐stabilized n ‐hexadecane/polyHIPE composite phase change material (PCM) was designed and thermal energy storage properties were determined. Porous carbon‐based frameworks were produced by polymerization of styrene‐based high internal phase emulsions (HIPEs) in existence of the surface modified montmorillonite nanoclay. The morphological and mechanical properties of the obtained polyHIPEs were investigated by scanning electron microscopy analysis and the compression test, respectively. The polyHIPE composite with the best pore morphology and the highest compression modulus was determined as a framework to prepare the form stable n ‐hexadecane/polyHIPE composite phase change material using the one‐step impregnation method. The chemical structure and morphologic property of composite PCM was investigated by FT‐IR and polarized optical microscopy analysis. Thermal stability of the form‐stable PCM (FSPCM) was examined by TG analysis. The n ‐hexadecane fraction engaged into the carbon foam skeleton was found of as 55 wt% from TG curve. differential scanning calorimetry analysis was used for determining melting temperature and latent heat storage capacity of FSPCM and these values were determined as (26.36°C) and (143.41 J/g), respectively. The results indicated that the obtained composite material (FSPCM) has a considerable potential for low temperature (18°C‐30°C) thermal energy storage applications with its thermal energy storage capacity, appropriate phase change temperatures and high thermal stability.