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Microestruturas de zeína produzidas pela técnica de fiação por sopro em solução visando à incorporação e liberação lenta de vitamina C
(Universidade Federal de São Carlos, 2019-05-31)
The development of functional micro/nanostructures for use in the agricultural area is relevant and has the potential to reduce the consumption of inputs with improved efficiency of the final product. In this context, the ...
Obtenção e funcionalização da superfície da zeólita FAU particulada e imobilizada em fibras de PLA para a adsorção de corantes
(Universidade Federal de São Carlos, 2017-02-23)
The importance given to the environmental issue leads us to promote the search for resources that minimize the degradation of the environment, especially with respect to water resources area. In this context, there is a ...
Efeito da promoção de turbulência na hidrodinâmica de um reator tipo filtro-prensa e na degradação eletroquímica do bisfenol S
(Universidade Federal de São Carlos, 2019-06-28)
The kinetics of many electrochemical processes is limited by mass transport, especially at low concentrations of the reactant. The use of turbulence promoters in parallel-plate reactors increases the hydrodynamic turbulence ...
Análise do sistema Fe2O3 - SnO2 sinterizado: propriedade de transporte eletrônico
(Universidade Federal de São Carlos, 2019-09-30)
Hematite (α-Fe2O3) is a very abundant chemical compound in nature, has interesting electrical and magnetic properties, which consequently makes this oxide an advanced functional material. The literature reports that Sn ...
Estudo microestrutural dos contornos de grão em estágio inicial de formação no sistema cerâmico ZnO-Bi2O3
(Universidade Federal de São Carlos, 2019-08-28)
Polycrystalline materials have solid-solid interfaces known as grain boundary. These interfaces have long been treated as just a region of defects between the crystals (grains), but recent studies have shown that such ...
Desenvolvimento de filmes biodegradáveis baseados em pectina e nanofibras de celulose funcionalizadas
(Universidade Federal de São Carlos, 2019-08-26)
Renewable polymers are an interesting alternative to synthetic polymers from petrochemical sources. The work aims at the development of nanocomposite films based on pectin and functionalized cellulose nanofibers. The ...
Estudo da corrosão de aço AISI 1020 em meio de petróleo
(Universidade Federal de São Carlos, 2011-08-11)
The chemical attack on crude oil, which contains corrosive compounds such as H2S, CO2, naphthenic acids and salts dissolved in the aqueous phase, combined with effects of varying pH, temperature, flow and pressure, has ...
Novas rotas para a síntese hidrotérmica de nanoestruturas de óxidos de titânio
(Universidade Federal de São Carlos, 2012-02-28)
The development of new materials has been a major focus of modern science. In order to obtain materials with desired features, studies about synthesis are necessary for a better understanding of their synthetic processes. ...
Transporte de vapor de água e sorção de CO2 em filmes de polisulfona: efeito das variáveis de processamento e envelhecimento físico.
(Universidade Federal de São Carlos, 2004-08-31)
Water vapor transport properties and CO2 sorption were studied for bisphenol A Polysulfone films, PSF, prepared with different thickness via solvent casting and a compression molding. From the measurements of water vapor ...
Síntese e caracterização a nível nanométrico da fase Li2(M) Ti308, M=Zn, Co e Ni pelo método Pechini.
(Universidade Federal de São Carlos, 2004-06-25)
The present work describes the preparation and characterization of the spinel phases Li2ZnTi3O8, Li2CoTi3O8 and Li2NiTi3O8 synthesized by the polymeric precursor method. Polycrystalline ceramic powders of high quality ...