| 초록 |
In this work, the biodegradable poly(ε-caprolactone)(PCL) microcapsules containing fragrant oil were prepared by solvent evaporation method. Physicochemical properties and release behaviors of microcapsules were tested with various manufacturing conditions. Geranium, lavender and spearmint oil were used as a core substance. Two polymers were used polycaprolactone(PCL) as a capsule wall material and poly(vinyl alcohol)(PVA) as a stabilizer. The properties of microcapsules were investigated to verify the effects of the stirring rate, concentration of stabilizer and molecular weight of PCL. The size and shape of the microcapsules were observed by scanning electron microscope(SEM). Also, the release behaviors of fragrant oil from microcapsule were characterized by UV/vis. spectrophotometer. |
