Composite
phase change materials (PCM) of stearic acid/graphene oxide were prepared by thiol-alkyne
click coupling reaction. Stearic acid was firstly modified with propargyl to
introduce thiol-yne clickable sites. Different amounts of graphene oxide were
added to thiol-alkyne clickable formulation. To evaluate phase change
properties of PCMs differential scanning calorimeter (DSC) was used. Thermal
stability and degradation profiles of PCMs were investigated. The structural
characterization of stearic propargyl ester and PCMs was performed by ATR-FTIR
spectroscopy. The addition of graphene oxide increased the maximum weigh loss
temperature from 328 to 351 ˚C with respect to the base formulation. Moreover,
the crosslinking of stearic acid prevented the leakage of PCMs.
Composite
phase change materials (PCM) of stearic acid/graphene oxide were prepared by thiol-alkyne
click coupling reaction. Stearic acid was firstly modified with propargyl to
introduce thiol-yne clickable sites. Different amounts of graphene oxide were
added to thiol-alkyne clickable formulation. To evaluate phase change
properties of PCMs differential scanning calorimeter (DSC) was used. Thermal
stability and degradation profiles of PCMs were investigated. The structural
characterization of stearic propargyl ester and PCMs was performed by ATR-FTIR
spectroscopy. The addition of graphene oxide increased the maximum weigh loss
temperature from 328 to 351 ˚C with respect to the base formulation. Moreover,
the crosslinking of stearic acid prevented the leakage of PCMs.
Primary Language | English |
---|---|
Subjects | Engineering |
Journal Section | Research Articles |
Authors | |
Publication Date | June 30, 2018 |
Acceptance Date | May 25, 2018 |
Published in Issue | Year 2018 Volume: 30 Issue: 2 |
Marmara Fen Bilimleri Dergisi
e-ISSN : 2146-5150
MU Fen Bilimleri Enstitüsü
Göztepe Yerleşkesi, 34722 Kadıköy, İstanbul
E-posta: fbedergi@marmara.edu.tr