PANI (polyaniline)/PP(polypropylene) conductive fibers with the conductivity value up to 0.12 S/cm were prepared with PP fibers as matrix via in-situ adsorption polymerization technique. The aniline monomer concentrat...PANI (polyaniline)/PP(polypropylene) conductive fibers with the conductivity value up to 0.12 S/cm were prepared with PP fibers as matrix via in-situ adsorption polymerization technique. The aniline monomer concentration, the oxidant concentration, the doping acid concentration and the reaction time have been found to strongly correlate with the result conductivity of the composite fibers. The optimized polymerization conditions were concluded as follow: 0.6 mol/L doping acid concentration, 0.02 g/ml oxidant concentration, 90% aniline monomer concentration and 120 min reaction time. In this process, the thickness of polyaniline sedimentation layer on the surface of PP fiber gradually increased with the increase of reaction period. The properties and morphology of the composite fibers are reported.展开更多
Scanning electron microscopy and transmission electron microscopy were employed to study the two-phase morphology of the conductive polyaniline/Nylon-11 fibers.By analyzing the transverse cross section,the axial secti...Scanning electron microscopy and transmission electron microscopy were employed to study the two-phase morphology of the conductive polyaniline/Nylon-11 fibers.By analyzing the transverse cross section,the axial section and the surface micrographs of the monofilament with 20% polyaniline,it was shown that the two blend components were incompatible and partly stripped.Comparison was made for polyaniline/Nylon-11 and carbon black/PET systems.The former had higher electric conductivity and lower percolation threshold than the latter.The formation of fibril morphology of polyaniline in the conductive fibers was valuable for producing more perfect conductive channels.Nylon-11 was the continuous phase and contributed to the mechanical properties of the fiber.展开更多
文摘PANI (polyaniline)/PP(polypropylene) conductive fibers with the conductivity value up to 0.12 S/cm were prepared with PP fibers as matrix via in-situ adsorption polymerization technique. The aniline monomer concentration, the oxidant concentration, the doping acid concentration and the reaction time have been found to strongly correlate with the result conductivity of the composite fibers. The optimized polymerization conditions were concluded as follow: 0.6 mol/L doping acid concentration, 0.02 g/ml oxidant concentration, 90% aniline monomer concentration and 120 min reaction time. In this process, the thickness of polyaniline sedimentation layer on the surface of PP fiber gradually increased with the increase of reaction period. The properties and morphology of the composite fibers are reported.
文摘Scanning electron microscopy and transmission electron microscopy were employed to study the two-phase morphology of the conductive polyaniline/Nylon-11 fibers.By analyzing the transverse cross section,the axial section and the surface micrographs of the monofilament with 20% polyaniline,it was shown that the two blend components were incompatible and partly stripped.Comparison was made for polyaniline/Nylon-11 and carbon black/PET systems.The former had higher electric conductivity and lower percolation threshold than the latter.The formation of fibril morphology of polyaniline in the conductive fibers was valuable for producing more perfect conductive channels.Nylon-11 was the continuous phase and contributed to the mechanical properties of the fiber.
