Phase change materials (PCMs) have
broad application prospects
in energy-saving buildings. Herein, this is the first report to realize
the in situ modified expanded perlite (MEP) of graphitized carbon
through metal catalysis-anaerobic carbonization. Simultaneously, capric-palmitic
acid (CA-PA) PCMs, which possess ideal phase change enthalpy and a
phase change temperature (T
pc) suitable
for human life, were prepared with good temperature regulation ability
in the temperature range of 20–30 °C. A series of MEP/CA-PA
form-stable PCMs (FS-PCMs) based on CA-PA PCMs and MEP were prepared,
and their T
pc values were suitable for
human comfort and also had good heat storage/release capabilities.
Also, compared with EP/CA-PA FS-PCMs, the thermal conductivity of
MEP/CA-PA FS-PCMs was significantly enhanced. Overall, this work promotes
the potential applications of MEP/CA-PA FS-PCMs in energy-saving buildings
and provides a strategy for enhancing the thermal conductivity of
FS-PCMs.
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