| Autor: |
Laforgue, Alexis, Champagne, Michel F., Dumas, Jean, Robitaille, Lucie |
| Předmět: |
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| Zdroj: |
Journal of Engineered Fabrics & Fibers (JEFF); 2012, Vol. 7 Issue 3, Special section p118-124, 7p |
| Abstrakt: |
Polypropylene-multiwalled carbon nanotube (PP-CNT) composites were spun into fibers using melt- spinning 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. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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