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Biodegradable poly(glycolic acid) nanofiber prepared by CO 2 laser supersonic drawing
Author(s) -
Suzuki Akihiro,
Shimizu Rio
Publication year - 2011
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.33982
Subject(s) - materials science , supersonic speed , body orifice , nanofiber , glycolic acid , composite material , choked flow , jet (fluid) , airflow , fiber , chamber pressure , polymer chemistry , lactic acid , mechanical engineering , mechanics , physics , biology , bacteria , engineering , metallurgy , genetics
Biodegradable Poly(glycolic acid) (PGA) nanofibers were prepared by irradiating a PGA fiber with radiation from a carbon dioxide (CO 2 ) laser while drawing it at supersonic velocities and was collected as a nonwoven. A supersonic jet was generated by blowing air into a vacuum chamber through the fiber injection orifice. The flow velocity from the orifice was estimated by computer simulation; the fastest flow velocity was calculated to be 401 m s −1 at a chamber pressure of 6 kPa. A nanofiber obtained using a laser power of 10 W and a chamber pressure of 6 kPa had an average diameter of 359 nm and a draw ratio of about 77,600. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011
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