42 research outputs found

    Electrical, mechanical, and thermal analysis of natural rubber/polyaniline-Dbsa composite

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    A composite of natural rubber (NR) with polyaniline (PANI) was obtained by mixing an aqueous dispersion of dodecylbenzenesulfonic acid (DBSA)-doped PANI with NR latex in different concentrations. Films were obtained by the casting method and characterized by ultraviolet visible near-infrared (UV-Vis-NIR) spectroscopy, thermogravimetry/differential thermogravimetry (TG/DTG), stress-strain testing, differential scanning calorimetry (DSC), and DC electrical conductivity measurements. The UV-vis-NIR spectrum showed that PANI remained doped in the composite, and this improved the mechanical and electrical proprieties of NR films and afforded them good thermal stability up to similar to 200 degrees C. The percolation threshold did not follow the universal critical exponent, and in this case, conduction preferentially occurs by hopping and tunneling.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Universidade Estadual Paulista, Departamento de Física e Química, Faculdade de Engenharia de Ilha Solteir

    REMOVED: Fundamentals of High-Flux PVDF Hollow Fiber Membrane Formation: The Evolution of Macrovoid-Free and Highly Inter-Connected Cellular Structure for Ethanol-Water Separation

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    This article has been removed: please see Elsevier Policy on Article Withdrawal (http://www.elsevier.com/locate/withdrawalpolicy).This article has been removed at the request of the Executive Publisher.This article has been removed because it was published without the permission of the author(s)

    Molecular design of the morphology and pore size of PVDF hollow fiber membranes for ethanol-water separation employing the modified pore-flow concept

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    10.1016/j.memsci.2011.03.016Journal of Membrane Science3741-267-82JMES

    High performance thin-film composite forward osmosis hollow fiber membranes with macrovoid-free and highly porous structure for sustainable water production

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    10.1021/es301559zEnvironmental Science and Technology46137358-7365ESTH

    PVDF/nanosilica dual-layer hollow fibers with enhanced selectivity and flux as novel membranes for ethanol recovery

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    10.1021/ie202116hIndustrial and Engineering Chemistry Research512978-993IECR

    Design of robust hollow fiber membranes with high power density for osmotic energy production

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    10.1016/j.cej.2013.10.063Chemical Engineering Journal241457-465CMEJ

    Modified pore-flow model for pervaporation mass transport in PVDF hollow fiber membranes for ethanol-water separation

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    10.1016/j.memsci.2010.06.062Journal of Membrane Science3621-2393-406JMES
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