초록 |
We have developed a simple approach for the fabrication of cellulose microfibers in a hydrodynamic flow-focusing microfluidic system. The synthesis of cellulose microfibers is based on the regeneration of cellulose from ionic liquids by simply contacting with a glycerol-containing water phase. Unlike other microfluidic synthesis of microfibers, rectangular-shaped microfibers were produced in our device. The shape and size of cellulose fibers were controlled by changing the flow rates of the cellulosic solution and the surrounding sheath fluid. The method is simple, efficient, and environmental friendly over current processing of cellulose into fibers. |