| 초록 |
In this work, the biodegradable poly(ε-caprolactone)(PCL) microcapsules containing animal repellent oil(fragrant oil) were prepared by solvent evaporation method. Physicochemical properties and release behaviors of microcapsules were tested with various manufacturing conditions. Creosote, clove oil and thyme 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 microcapsules were investigated to variety the effects of the stabilizer and stirring rate. 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. |
