A Novel Needleless Electrospinning System Using a Moving Conventional Yarn as the Spinneret
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A novel electrospinning system for the mass production of nanofibers using a moving conventional yarn as the spinneret was designed. In the process of electrospinning, a large number of jets were ejected from the surface of the polymer liquid carried by the yarn. The effects of conductivity, surface structure and fineness of the yarn on the morphology and productivity of the obtained nanofibers were discussed in the research. Results indicate that the productivity of nanofibers can be increased up to 1.17 g/h with our method, which is a more than fourfold enhancement compared to less than 0.3 g/h with the method of single-needle electrospinning. Both issues of needle clogging in needle electrospinning and intense solvent evaporation due to the open solution surface in most needleless electrospinning techniques can be avoided.
KeywordsNeedleless electrospinning Nanofiber Yarn spinnerets Productivity Industrialization
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