| 초록 |
Microcapsules are fine particles whose size ranges from 50nm to 2,000μm, composed of size of microcapsule using miniemulsion can be smaller than 1μm. Miniemulsion is generally consists of oil, water, surfactant, and cosurfactant. In the miniemulsion, oil droplets are stable even though the size is smaller than 1um because of cosurfactant. In this work, polystyrene was used for encapsulation of paraffin wax. Generally, cosurfactant is very in-soluble in the water. Hexadecane, cetyl alcohol, stearic acid , and stearyl methacrylate are usually used as cosurfactant. When the condition contains paraffin wax used as the core material, cosurfactant is not needed to use in this condition. Because paraffin wax can act as the cosurfactant. The size of the obtained nanoparticles was measured by dynamic light scattering. |
