Thermal Proprieties
Mostrando 1-11 de 11 artigos, teses e dissertações.
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1. Maleic Anhydride as a Compatibilizer and Plasticizer in TPS/PLA Blends
In recent decades, starch has been studied as a raw material due to low production costs. The limitations associated with starch being highly permeable to water vapor and its mechanical properties being dependent on the relative humidity have been investigated. The proprieties of thermoplastic starch/poly(lactic acid) (TPS/PLA) blends have been studied by
J. Braz. Chem. Soc.. Publicado em: 2015-08
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2. Recovery of Steelmaking Slag and Granite Waste in the Production of Rock Wool
Steelmaking slag and residues from granite cuttings are industrial wastes with considerable production, however limited applications. This work studied an inertization and recovery process of such wastes as raw materials into production of rock wool (i.e. a thermo-acoustic insulator with growing market). Several batches were produced aiming the chemical prop
Mat. Res.. Publicado em: 2015-02
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3. Electrical, mechanical, and thermal analysis of natural rubber/polyaniline-Dbsa composite
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 thermograv
Mat. Res.. Publicado em: 20/05/2014
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4. Modificação do LLDPE através de silanos viabilizando a aplicação em camadas plásticas de linhas flexíveis / Study of silane grafting reactions of low density polyethylene for pipe applications
The flexible lines are flexible structures manufactured through plastic and steel layers that allows its use in order to permit fluid flow in exploration and production of hydrocarbon between offshore oil units and sea bed and/or coast. Nowadays these pipes are one of the main ways to permit the exploration of hydrocarbon in deepwater. The present study aims
Publicado em: 2009
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5. Características mecânicas de vergalhões de aço auto-revenido
The rebar steel is one of the most utilized and diffused materials in Brazilian civil construction, as it is in the whole world, but it´s necessary to know more details about the rebar behavior as a material and not only as a structural element. Each day civil engineering searches for new alternatives to maximize the use of materials, from new structural ca
Publicado em: 2009
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6. Aplicação de Zr/Ti-PILC no processo de adsorção de Cu(II), Co(II) e Ni(II) utilizando modelos físico-químicos de adsorção e termodinâmica do processo
The aim of this investigation is to study how Zr/Ti-PILC adsorbs metals. The physico-chemical proprieties of Zr/Ti-PILC have been optimized with pillarization processes and Cu(II), Ni(II) and Co(II) adsorption from aqueous solution has been carried out, with maximum adsorption values of 8.85, 8.30 and 7.78 x10-1 mmol g-1, respectively. The Langmuir, Freundli
Química Nova. Publicado em: 2008
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7. Estudo do comportamento plástico, mecânico, microestrutural e térmico do concreto produzido com resíduo de porcelanato
O crescimento populacional nos grandes centros, aliado a necessidade de geração de infra-estrutura à sociedade, está obrigando a indústria da construção civil a intensificar suas atividade, principalmente no que se refere à demanda habitacional, resultando no aumento do consumo de materiais de construção e, consequentemente, dos recursos naturais.
Publicado em: 2007
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8. Efeitos de superfície nas propriedades térmicas e dinâmicas de filmes de cristais líquidos esméticos. / Surface effects on the thermal and dynamical proprieties of smectic liquid crystal filmes.
The thermal and dynamical properties of free-standing films are strongly dependent on the boundary conditions and the presence of an external field. Using distinct theoretical models and the dynamic light scattering experimental setup, we study the surface and external field effects on the relaxation dynamics, fluctuation-induced interaction energy, and phas
Publicado em: 2007
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9. Influence of stress on gene expression and broiler meat quality / Influência do estresse pré-abate na expressão gênica e qualidade da carne de frango (Gallus gallus)
Brazilian broiler production yields a considerable amount of income for the nation. Brazil is currently the world's third broiler producer and the first chicken meat exporter, contributing with 41% of the whole world market. To reach new market frontiers it is inevitable the improvement of meat quality. Among the reasons that influences final products qu
Publicado em: 2007
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10. Análise do comportamento da microestrutura de materiais endurecidos retificados com rebolos de CBN
CBN grinding wheels are superabrasive tools, with cutting ability higher than the conventional ones, specially used for grinding DTG (Difficult to Grind) materials. Due to the higher hardness and thermal conductivity of the CBN superabrasive grains, when compared with conventional abrasive grains, the use of CBN tools reduce the grinding temperatures decreas
Materials Research. Publicado em: 2000-10
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11. A influencia da diluição magnetica na competição entre efeito Kondo e interação RKKY em sistemas Kondo concentrados
In this work we study the influence of the magnetic dilution on the competition between the RKKY interaction and Kondo effect for the series of compounds (La1-xCex)3Al, (Ce1-zYz)3Al, (La1-xCex)Pd2Al3 and (La1-xCex)Ni. Measurements of the structural, magnetic, calorimetric and transport proprieties, show that the changes of the ground state these systems can
Publicado em: 1998