Termogravimetry
Mostrando 1-6 de 6 artigos, teses e dissertações.
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1. Estudo dos efeitos da radiação ionizante em cartilagem costal humana por meio de Termogravimetria e Tomografia por Coerência Óptica / Study of ionizing radiation effects in human costal cartilage by Termogravimetry and Optical Coherence Tomography
Bancos de Tecidos de diversas regiões do mundo têm estocado cartilagens humanas obtidas de doadores post mortem para uso em diversos tipos de cirurgias reconstrutivas. Para garantir que tais tecidos não estejam contaminados, estes têm sido esterilizados com radiação ionizante. Entretanto, altas doses de radiação gama podem causar efeitos indesejávei
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/05/2012
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2. Obtaining magnesium and vanadium catalysts supported on activated carbon for the production of styrene. / Obtenção de catalisadores de vanádio e magnésio suportados em carvão ativado para a produção de estireno.
The main route industrially used for styrene production is the ethylbenzene catalytic dehydrogenation, responsible for more than 90% of its worldwide capacity. The industrial process is performed at the temperature range of 550-700 C with an excess of heated steam over potassium and chromium-promoted iron oxide catalysts, which are toxic and have 2-year life
Publicado em: 2008
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3. Eletrochemical characterization of PSSO3H/Pani composite for fuel cells applications / Caracterização eletroquimica do composito PSSO3H/PAni para aplicação em celulas a combustivel
The development of alternative materials for fuel cells applications consists on a tentative to produce commercially available fuel cells, by reduction of costs with their manufacturing and materials. This master dissertation presents an investigation on the polystyrene sulfonate/polyaniline composite, which is an alternative material with low cost of produc
Publicado em: 2005
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4. Caracterização vibracional e térmica de blendas de LDPE e m-LLDPE / Thermal and vibrational characterization of blends: Blends of low density polyethylene (LDPE) and linear low density polyethylene synthesized with the metallocene catalyst (m-LLDPE)
Blends of low density polyethylene (LDPE) and linear low density polyethylene (LLDPE) are used commercially to improve the final properties of the products and their process, reduce the production cost having as their main segment packing film. The LLDPE used in this work was synthesized with the metallocene catalyst (m-LLDPE), which was projected to offer b
Publicado em: 2005
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5. Adesivos poliuretanicos derivados de PET reciclado : sintese, caracterização e aplicação
In Brazil, the production and recycling index of poly(ethylene terephthalate) -PET have been increased. Therefore it is necessary to increase the possibilities for utilizing this polymer waste. This work aims the chemical recycling as a way to obtain value added products from PET waste. Postconsumer PET bottles were first depolymerized by glycolysis with die
Publicado em: 2004
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6. Eletrocromismo em filmes finos de oxi-hidroxido de cobalto
In this work, we studied the electrochemical and electrochromic properties of cobalt oxihydroxide thin film. The films were electrochemically deposited onto glass covered with transparent/conducting SnO2 films, from a Co(II) solution. The film stoichiometry and composition was analyzed by Electronic Spectroscopy for Chemical Analysis (ESCA), termogravimetry
Publicado em: 1992