Ultrasonic preparation of cellulose/Ag/polyaniline conductive composites and its electrical properties

摘要

Cellulose/Ag/polyaniline conductive composites with excellent electrical conductivity were fabricated by the ultrasonic method for the first time. The products were characterized by UV-Vis spectrometer, Fourier-transform infrared spectroscopy, Scanning electron microscopy, Thermogravimetric and Conductivity analysis, and the results showed that the Ag nanoparticles (nanoAg) with the good conductivity coated uniformly on the surface of cellulose and improved the conductivity of cellulose/Ag/ polyaniline composites significantly. The conductivity value was up to 0.348 S/cm, which was higher than pure polyaniline (0.142 S/cm) and cellulose/polyaniline composites (3.0 × 10~(-2) S/cm). In addition, compared with cellulose/polyaniline composites, cellulose/Ag/polyaniline composites also have the enhanced thermostability. The cellulose/Ag/polyaniline conductive composites would have a promising application in a variety of fields due to its unique structure and excellent properties.