Facile preparation of multifunctional poly(amide-imide)/polyaniline films: Combining self-cleaning, self-extinguishing, and conductive

Recently, multifunctional films are of particular interest to scientists owing to their diversified properties. Here, we demonstrated that self-cleaning, self-extinguishing, and high conductive films were fabricated by simple solvent-casting method from poly(amide-imide)/polyaniline composites. The multifunctional films exhibited controllable water contact angles varying from 65 degrees to 120 degrees and high electrical conductivities of over 40Sm(-1). Moreover, due to the improved hydrophobicity, the multifunctional films showed self-cleaning characteristics and were used to collect the dust powders easily and perfectly during the dispensed water droplet rolling off the solid surface. Furthermore, the self-extinguishing property of the multifunctional films was confirmed by thermogravimetric analysis. The special film composition and morphology are the two important aspects that induce such unusual properties. The polyaniline content can strongly influence the morphology of the composite films, which in turn display different hydrophobicities and conductivities. POLYM. ENG. SCI., 59:E33-E43, 2019. (c) 2018 Society of Plastics Engineers