Microencapsulation and characterization of hydrated salt using silica precursors

In the present study, disodium hydrogen phosphate dodecahydrate (Na۲HPO۴ .۱۲H۲O) wasmicroencapsulated using the interfacial polymerization method combined with the sol-gel process. Tetraethylsilicate (TEOS) and (۳-Glycidyloxypropyl) trimethoxysilane (GPTMS) precursors were used to form the silica shell.SEM results confirm the microcapsule formation. DSC results showed that the synthesized microcapsules havemelting temperature and enthalpy of ۵۳.۵۷ °C and ۵۶.۶۹ J/gr, and crystallization temperature and enthalpy of۹.۸۲ °C and ۲۴.۷۱ J/gr, respectively.

کلیدواژه ها:

Phase change material ، hydrated salt ، Microencapsulation ، silica