On the Role of Fiber Coating in the Deposition of Multiwall Carbon Nanotubes Onto Glass Fibers

Deposition of acid oxidized multiwall carbon nanotubes (MWCNTs) onto commercial glass fibers (GFs) is achieved by a simple dipping deposition procedure. Given the interaction between the chemical groups of the fiber coating (sizing) and those of the oxidized MWCNTs, a homogenous deposition of MWCNTs onto GFs is achieved only when the fiber coating is maintained. The MWCNTs are deposited homogeneously over the GFs not only at the microscale, but also at the macroscale. The homogeneous distribution of the MWCNTs over the GF is characterized by the intensity of the Raman bands as a function of the position on the fiber.