Polyaniline-Organoclay Nanocomposites as Curing Agent for Epoxy: Preparation and Characterization

摘要

Polyaniline (PANI)-organoclay/Epoxy (EP) nanocomposites were prepared. PANI-organoclay nanocomposites were used as curing agent for EP. Organoclay was prepared by an ion exchange process between sodium cations in MMT and NH_3~+ groups in polyoxypropylene (D_(230)). PANI-organoclay nanocomposite was synthesized by in situ polymerization of aniline in (14 wt%) organoclay. Infrared spectra and differential scanning calorimetry confirm the curing of EP. The absence of d_(001) diffraction band of organoclay in the nanocomposites was observed by X-ray diffraction. The structure argument was further supported by scanning electron microscopy and transmission electron microscopy. Electrical conductivity of the nanocomposites within the range 2.1 x 10~(-7)-3.2 x 10~(-7) S/cm depending on the-concentration of the PANI/D_(230)-MMT.