TY - JOUR ID - 21050376 AU - Laforgue, Alexis AU - Champagne, Michel F. AU - Dumas, Jean AU - Robitaille, Lucie T1 - Melt-processing and properties of coaxial fibers incorporating carbon nanotubes JO - Journal of Engineered Fibers and Fabrics SP - 118 EP - 124 VL - 7 IS - 3 PY - 2012 N2 - Polypropylene-multiwalled carbon nanotube (PPCNT) composites were spun into fibers using meltspinning methods. The CNT content was varied by diluting the commercial masterbatch with a low viscosity PP homopolymer grade. The conductivity, as well as the mechanical properties, of the fibers were systematically tested in order to find the optimal formulation. Post-stretching was used to improve the mechanical properties of the fibers as well as to decrease the fiber diameters. Fibers having a conductivity of 0.4 S/cm, a Young’s modulus of 5.4 GPa and a tensile strength of 250 MPa were obtained after a three-fold stretching. Trilayer coaxial fibers similar to data transfer coaxial cables (two conductive layers separated by an insulating layer) were then produced in a one-step melt-spinning method using a specially designed die, followed by solid state post-stretching. M1 - 139303 U3 - Automotive U3 - Automobile (AUTO-AUTO) U3 - National Research Council Canada U3 - Conseil national de recherches Canada (CNRC-NRC) UR - http://www.jeffjournal.org/papers/Volume7/7.3.16Laforgue.pdf ER -