ANNE CRISTINE CHINELLATO
11 resultados
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Artigo IPEN-doc 23861 Comparative study of the sugarcane bagasse FIBER/HDPE composite properties using electron-beam and gamma radiation treatments2012 - PEREIRA, AMANDA C.S.; CHINELLATO, ANNE C.; SORIA, ALEJANDRA T.; ABREU, ANIBAL V.; DEL MASTRO, NELIDA L.; MOURA, ESPERIDIANA A.B.This work presents a comparative study of the thermo-mechanical and morphological properties of sugarcane bagasse fiber/HDPE composite treated with electron-beam and gamma radiation. The composite samples obtained by extrusion and injection molding processes were irradiated at 50 and 90 kGy using either a 1.5 MeV electron beam accelerator or gamma irradiator EMI-9, at room temperature in presence of air. The irradiated and non-irradiated samples were submitted to mechanical and MFI tests, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), sol-gel analysis and X-Rays Diffraction (XRD) and the correlation between their properties was discussed. Improvement of the bagasse fiber/HDPE composite properties, using electron-beam or gamma radiation, was found.Artigo IPEN-doc 23860 Thermal and morphological behavior of EVOH/piassava fiber composites2012 - NOGUEIRA, BEATRIZ R.; CHINELLATO, ANNE; ORTIZ, ANGEL V.; PARVEEN, ARIFA; RANGARI, VIJAYA K.; MOURA, ESPERIDIANA A.B.Composite consisting of ethylene vinyl alcohol (EVOH) with short piassava fibers were prepared by extrusion process and their thermal and morphological behavior were investigated. The EVOH reinforced with 5 and 10 % of piassava {Attaleafimifera Mart) fiber particle, based on the percentage weight ratio (wt %), untreated and treated with a commercial silane coupling agent, were prepared and the influence of fiber loading and the effect of chemical treatment on their thermal and morphological behavior were evaluated by SEM, DSC and TG analyses. Melt flow index (MFI) of the composites have been determined to evaluate the effects of fiber reinforcement on dynamic viscoelastic melt of the EVOH. In addition, piassava fibers characterization by SEM, FTIR, and organic and inorganic composition have also been carried out. The SEM results of the composites showed surface micrographs without microvoids and a good distribution, dispersion and compatibility between the fillers and the EVOH matrix. Concerning the piassava fibers characterization, the results showed that piassava has higher lignin content than cellulose and hemicelluloses, and around 0.7 % of ash with 52 % of silica (Si02). This high concentration of silica is consistent with the SEM analysis of the fiber that showed a large amount of "silica rings" encrusted on their surface.Artigo IPEN-doc 15258 Avaliacao dos efeitos da radiacao por feixes de eletrons nas propriedades mecanicas do polipropileno2009 - SOUZA, CLECIA M.; CHINELLATO, ANNE; MOURA, ESPERIDIANA A.B.Artigo IPEN-doc 15256 Efeito da radiacao por feixe de eletrons sobre as propriedades mecanicas do polietileno de alta densidade2009 - SHIMAZAKI, KLEBER; CHINELLATO, ANNE; MOURA, ESPERIDIANA A.B.Artigo IPEN-doc 16825 Effects of electron-beam radiation on thermo-mechanical properties of HDPE/Brasil nut shell fiber/clay nanocomposite2011 - POZENATO, CRISTINA A.; NOGUEIRA, BEATRIZ R.; CHINELLATO, ANNE C.; DIAZ, FRANCISCO R.V.; MOURA, ESPERIDIANA A.B.Artigo IPEN-doc 16824 Comparative study on the mechanical behavior of electron-beam and gama irradiated bagasse fiber/HDPE composite2011 - PEREIRA, AMANDA C.S.; NOGUEIRA, BEATRIZ R.; CHINELLATO, ANNE C.; CASTILHO, ANIBAL V.A.; TERAN, ALEJANDRA S.; MOURA, ESPERIDIANA A.B.Artigo IPEN-doc 16823 Caracterization of HDPE/Brazil nut shell fiber composite treated by electron-beam radiation2011 - FERREIRA, MAIARA S.; CHINELLATO, ANNE; MOURA, ESPERIDIANA A.B.Artigo IPEN-doc 17482 Comparison between irradiated HDPE/piassava fiber/nanpclay and HDPE/piassava fiber/nanoclay/PP blend2011 - SOUZA, THIAGO L.S.; NOGUEIRA, BEATRIZ R.; CHINELLATO, ANNE C.; DIAZ, FRANCISCO R.V.; MOURA, ESPERIDIANA A.B.Artigo IPEN-doc 17483 Thermal and morphological behaviour of EVOH/piassava fiber composites treated by electron-beam irradiation2011 - NOGUEIRA, BEATRIZ R.; LIMA, NELSON B.; CHINELLATO, ANNE C.; PARVEEN, ARIFA; RANGARI, VIJAYA K.; MOURA, ESPERIDIANA A.B.Artigo IPEN-doc 17479 Thermo-mechanical behaviour of HDPE/sugarcane bagasse fiber/organoclay nanocomposites2011 - CASTILHO, ANIBAL V.A.; TERAN, ALEJANDRA S.; CHINELLATO, A.; NASCIMENTO, MARIA de F.R.; DIAZ, FRANCISCO R.V.; MOURA, ESPERIDIANA A.B. de