| 초록 |
Encapsulation is important in applications such as drug delivery, electronics, membrane related area. For engineering inner components, electrospun method can use multi capillaries for the inner fluids. We investigated the effects of molecular weight of a polymer, conductivity, syringe pumping speed. The experiment setup of multifluidic electrospun is made of three inner needles, one outer needle. Polymers (PVA, F-127, and PVDF), two dyes (rhodamine B, and coumarin 6), solvents (water, THF, and DMF as core fluid) and poly-styrene (as outer fluid) were used. To observe the morphology of sample, we used optical microscopy, Confocal microscopy, and SEM. It should produce parallel inner fluid streams of three individual fluids. But, we observed alternating encapsulation of samples in this multi components electrospinning system. Tendancy of alternating depends on the various conditions of inner fluids such as conductivity, molecular weight of polymers. |
