Foam Glass
Mostrando 1-12 de 15 artigos, teses e dissertações.
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1. Bioactive SiO2-K2O-CaO-P2O5 glass-ceramic scaffold prepared using polyurethane foam template
Abstract A glass-ceramic in the SiO2-K2O-CaO-P2O5 quaternary system was prepared by substituting the Na2O component with K2O to avoid Na2Ca2Si3O9 formation upon thermal treatment since this phase decreases apatite formation kinetics on glass material. To form the glass-ceramic, a modified sol-gel method involving solution precipitation, followed by reagents
Cerâmica. Publicado em: 2023
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2. Desenvolvimento de espumas vítreas a partir de garrafa e casca de ovo
RESUMO Este trabalho tem como foco a produção de espumas vítreas a partir de materiais reciclados, fazendo uso de matéria-prima de fácil acesso local e alta incidência no mercado: garrafas de cerveja não retornáveis e casca de ovo, como agente espumante. Para tanto, investigou-se a influência da temperatura de queima, da granulometria do vidro precu
Matéria (Rio J.). Publicado em: 20/05/2019
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3. Sustainable Glass Foams Produced from Glass Bottles and Tobacco Residue
In this work, discarded soda-lime-silica glass bottles and tobacco residue (after oil extraction to produce biodiesel) were prepared in different formulations to obtain glass foams. The formulated compositions were homogenized and uniaxially compacted at 40 MPa then fired at 850 ºC and 900 ºC for 60 min to investigate the effects of tobacco residue and tem
Mat. Res.. Publicado em: 03/12/2018
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4. Structural Health Monitoring of Sandwich Structures Based on Dynamic Analysis
Abstract This work aims to contribute to the development of SHM systems based on vibration methods to be applied on sandwich structures. The main objective is focused on experimental damage identification via changes in the Frequency Response Function (FRF) with the usage of damage metrics. Specimens of sandwich structures made from skins of epoxy resin rein
Lat. Am. j. solids struct.. Publicado em: 29/10/2018
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5. Effect of Pile Orientation on the Shear Strength of Stitched Foam Sandwich Panel
Stitched foam sandwich panel is a newly developed sandwich structure used in various structural applications. The sandwich skins are made of glass-fiber/epoxy-matrix composite; their interior layers are connected with glass yarn called piles. This paper investigates the effect of pile orientation on the shear strength of stitched foam sandwich panel. Four ty
Mat. Res.. Publicado em: 17/09/2018
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6. Numerical Study On Multi Layered Target Material Subjected To Impact Loading
Abstract In this study, the glass/epoxy composite laminate is layered with polyurethane foam/ polyurethane sheet and silicon carbide to analyse their response during high mass and low velocity impact. The silicon carbide is layered in two forms, one is as plate and the other is as inserts. The target materials are prepared in various combinations and the bo
Lat. Am. j. solids struct.. Publicado em: 04/06/2018
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7. Preparation of novel magnetic polyurethane foam nanocomposites by using core-shell nanoparticles
Abstract Iron oxide magnetic nanoparticles (NP's) converted to the core- shell structres by reacting with by n-(2-aminoethyl)-3-aminopropyl trimethoxysilane (AEAP) incorporated in polyurethane flexible (PUF) foam formulations. Fourier transform spectra, thermal gravimetric analysis, scanning electron images, thermo-mechanical analysis and magnetic properties
Polímeros. Publicado em: 08/12/2016
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8. SÍNTESE E CARACTERIZAÇÃO DE ESPUMAS VÍTREAS CONTENDO TiO2 E UTILIZANDO HIDRÓXIDO DE SÓDIO COMO AGENTE ESPUMANTE
Neste trabalho foi realizado um estudo sobre a ação do hidróxido de sódio como agente formador de espuma vítrea usando resíduos de vidro em sua composição. Para a síntese, investigou-se a variação da temperatura, da taxa de aquecimento e do tempo de sinterização. Utilizando-se a técnica de porosimetria de mercúrio, para estimar a densidade e o
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/04/2012
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9. ATUAÇÃO DE BENTONITE E POLIVINILPOLIPIRROLIDONA (PVPP) NA CLARIFICAÇÃO DE VINHOS ESPUMANTES / PERFORMANCE OF BENTONITE AND POLYVINYLPOLYPYRROLIDONE (PVPP) IN THE CLARIFICATION OF SPARKLING WINE
The size and persistence of the bubbles is one of the characteristics pursued by consumers of sparkling wine. The perlage is closely linked to nitrogen products, usually proteins of low molecular weight. Furthermore, bentonite and polyvinylpolypyrrolidone (PVPP) are glues used both in cleaning up the base wine and the sparkling wines, in other words, the fer
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/04/2011
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10. Influência da adição de alumina na microestrutura da espuma vítrea = Effects of the alumina addition in the microstructure of foam glass / Effects of the alumina addition in the microstructure of foam glass
No presente trabalho estudou-se a influência da adição de alumina nas propriedades da espuma vítrea. A alumina foi empregada com a finalidade de proporcionar uma maior refratariedade para os corpos cerâmicos. Foram investigados corpos cerâmicos à base de vidro sodo-cálcico moído, oriundo de embalagens de vidro transparente, calcário dolomítico e a
Publicado em: 2010
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11. Functional properties of egg white proteins of quail egg / Propriedades funcionais de proteínas da clara do ovo de codorna
In this work, the functional characteristics of solubility, capacity of foam formation and gelation of the egg white proteins of quail egg were studied. Solubility data were evaluated in function of the stirring time of the proteic solution, the pH value and the salt concentration (NaCl), at 25 C. The foam and gelation properties were analyzed as a function
Publicado em: 2008
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12. Drenagem de espumas usadas em incendios classe B : influencia da presença de polimeros redutores de atrito hidrodinamico
Poly(ethylene oxide), PEO, is one of the most efficient drag reducing polymers. Its application in foam jels for fire-fighting can improve and even assure the fighting efficiency. In order to evaluate the viability of the application of PEO in foams of high stability used in class B fires (inflammable liquids), the effect of the polymer on the stability of f
Publicado em: 1997