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Spot laser melt electrospinning of a fiber bundle composed of poly(lactide)/poly(ethylene‐ co ‐vinyl alcohol) pie wedge fibers
Author(s) -
Shimada Naoki,
Ogata Nobuo,
Nakane Koji,
Ogihara Takashi
Publication year - 2012
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.36820
Subject(s) - materials science , electrospinning , vinyl alcohol , composite material , fiber , synthetic fiber , spinning , polymer , nanofiber
The melt‐electrospinning system with a spot‐like carbon dioxide laser melting device was used to form fibers directly from solid‐like polymer rods. Fiber bundles were made from pie wedge fibers comprised of poly(lactide) (PLA) and poly(ethylene‐ co ‐vinyl alcohol) (EVOH) by gathering the fibers and twisting them together, and then melt electrospinning was performed for the bundles using the spinning system. Nanofibers with an average fiber diameter of ca . 400 nm were successfully obtained from the bundle by the optimization of manufacturing parameters such as laser output power, voltage, and collector distance. To investigate the morphological structure of the electrospun fibers, each structural component was extracted from the fibers with its solvent. It was found that three types of fibers with different morphology were produced during the melt‐electrospinning process: fibers consisting of only a PLA component, fibers consisting of only an EVOH component, and fibers consisting of a PLA/EVOH mixture. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012