Preparation of Stearic Acid/Graphene oxide Based Form-Stable Composite Phase Change Materials

Composite phase change materials insert ignore into journalissuearticles values(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 insert ignore into journalissuearticles values(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 .