Search results for "dual-jet electrospinning"
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Preparation, characterization and hydrolytic degradation of PLA/PCL co-mingled nanofibrous mats prepared via dual-jet electrospinning
2017
Abstract PLA/PCL co-mingled nanofibrous mats were prepared via multi-jet electrospinning. The concentration of PLA and PCL in the co-mingled mats were controlled by changing the flow rate of the two polymer solutions. The amount of PLA and PCL in the co-mingled nanofibrous mats was monitored by UV–Vis measurements through a colored dye added to PLA and by FTIR-ATR analysis. Morphology and mechanical properties of the nanofibrous mats were respectively examined by scanning electron microscopy (SEM) and tensile tests. Water contact angles measurements were also carried out in order to investigate the wettability of the materials. Finally, the hydrolytic degradation of the mats in buffer solut…
PLA/PCL nanofibrous blends via multi-jet electrospinning: processing-morphology-property relationships
2017
Electrospinning permits to prepare ultrafine fibers with micro to nano-meter range diameters. Multi-jet approaches can be used to fabricate blend nanofibrous mats composed by two or more polymers presenting different properties such as degradation rate, mechanical properties and so on. In this study, a series of PLA/PCL blend nanofiber mats were prepared by dual-jet electrospinning. The relative weight ratio of PLA and PCL in blend was controlled by changing the flow ratio of the two syringe pumps containing the polymer solutions.