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Prescribed 3-D Direct Writing of Suspended Micron/Sub-micron Scale Fiber Structures via a Robotic Dispensing System
Published on: June 12, 2015
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Instability-Assisted Direct Writing of Microstructured Fibers Featuring Sacrificial Bonds
Renaud Passieux1, Leigh Guthrie1, Somayeh Hosseini Rad1
1Laboratory for Multiscale Mechanics, École Polytechnique de Montréal, C.P. 6079, succ. Centre-Ville, Montréal (Québec), H3C 3A7, Canada.
Advanced Materials (Deerfield Beach, Fla.)
|May 19, 2015
Abstract:
A 30 μm-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.
