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Proceeding toward the development of poly (e-caprolactone)/cellulose microfibrils electrospun biocomposites using a novel ternary solvent system

In the current study, a mixture of formic acid (FA), acetic acid (AA), and acetone was used, for the first time, as a ternary solvent system to dissolve poly(e-caprolactone) (PCL). In addition, as a biomaterial reinforcement, various amounts of cellulose microfibrils (CMF) (1.5, 3, and 5 wt.%), extracted from rice husk, were added to PCL solution, and subsequently the prepared suspensions were individually electrospun. Adding acetone to FA/AA solvent system led to fabrication of uniform electrospun nanofibers with the average diameter of 178 +/- 38 nm. Upon CMF incorporation, the mean electrospun fiber diameter was increased to 320 +/- 132 nm at 5 wt.% CMF mostly due to the solution viscosity rise. In addition, scanning electron microscopy (SEM) confirmed wider diameter distribution in the presence of CMF. The electrospun fibers were also analyzed via wide angle X-ray scattering (WAXS) and differential scanning …

Journal Papers
Month/Season: 
July
Year: 
2019
Proceeding toward the development of poly (e-caprolactone)/cellulose microfibrils electrospun biocomposites using a novel ternary solvent system | Dr. Alireza Allafchian

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