4.8 Article

Instability-Assisted Direct Writing of Microstructured Fibers Featuring Sacrificial Bonds

Journal

ADVANCED MATERIALS
Volume 27, Issue 24, Pages 3676-3680

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201500603

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Funding

  1. Canada Foundation for Innovation (CFI)
  2. Natural Sciences and Engineering Research Council of Canada (NSERC)
  3. Fonds de Recherche du Quebec - Nature et Technologies (FRQNT)
  4. Ecole Polytechnique de Montreal

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A 30 mu m-diameter thread of poly(lactic acid) (PLA) dissolved in dichloromethane is deposited on top of the eye of a sewing needle. The deposition robot traces a straight line; the helical shape of the thread is due to the liquid rope coiling instability. This instability is used to fabricate microstructured fibers with tailored mechanical properties.

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