Process for the modification of fibers of curau u00e1 (Ananas erectifolius) with partu00ecculas of polu00ecmeros drivers, products resulting from this process and the use of such products as the sensing elements

摘要

Process for the modification of fibers of curau u00e1 (ANA in serectifolius) with partu00ecculas of polu00ecmeros drivers.The products resulting from such process and use of these products such as the sensing elements; obtaining fibres of the curau u00e1 modified with conducting polymers, including polyaniline.Through chemical treatment is described in this paper. It is proposed a process characterized by two sequential stages: acid treatment and polymerization.Analysis of optical microscopy and electronics of the fibres in natura and treated with polyaniline, a type of conducting polymers used.Show that the use of small quantities of polymer driver allows to obtain a continuous coating of fiber.So that the fibers are present surface is covered with a large number of micro, submicro and conductive polymer nanoparticles.The fibres of the curau u00e1 covered with polyaniline presented values of conductivity to be made over two thousand and five hundred times higher than that of the fibers in natura.In addition, the results of tests performed with the modified electromechanical fibres show that these can be used in the manufacture of devices sensitive to pressure differences.