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    Ecofriendly E-Nose Based in PLA and Only 0.3 wt% of CNTs

    Laura Ribba, Jonathan Cimadoro, Silvia Goyanes*

    Journal of Renewable Materials, Vol.7, No.4, pp. 355-363, 2019, DOI:10.32604/jrm.2019.04083

    Abstract In this work, conductive polymer nanocomposites were developed based on a biodegradable and biobased polymer (poly (lactic acid)), with the incorporation of only 0.3 wt% of carbon nanotubes (CNTs) to be used as volatile solvent sensors. The correct dispersion of the nanofiller was achieved thanks to a CNT non-covalent modification with an azo-dye (disperse orange 3) which allowed to reach the percolation for electric conduction in values as low as 0.3 wt%. The chemo-resistive properties of the developed sensors were investigated by exposure to organic vapors (ethanol, tetrahydrofuran and toluene) and water vapor, showing good selectivity. In addition, considering the… More >

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