Cellulose/graphite(GP)/polyaniline(PANI) composite films were successfully prepared by the combination of physical and chemical processes. The GP was dispersed in N-methylmorpholine-N-oxide monohydrate (NMMO) before the dissolution of cellulose, and and the cellulose/GP/PANI film was prepared by in-situ chemical polymerization of PANI nanoparticles on the film surface. The structure of the composite films was investigated by XRD, FT-IR, SEM and SEM-EDX. The properties of the composite films, such as mechanical strength, thermal stability, conductivity and antibacterial activity, were studied in detail.Results showed that the composite films had a multilayer structure with GP flacks embedded in the cellulose matrix and PANI nanoparticles tightly wrapped on the films’ surface. The flexibility and mechanical properties of the films were guaranteed by the cellulose matrix, and the films’ thermal stability was significantly improved by GP fillers. The PANI coating acted as a protective layer during burning and provided good electrical conductivity and antibacterial activity against Escherichia coli. The PANI/cellulose/GP composite film could be considered as a potential candidate for electronics, antistatic packing, and other applications.

Conductive films prepared from cellulose, graphite and polyaniline nanoparticles with highly thermal stability and antibacterial activity

253rd National Meeting (2017)

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