Water Dispersed Clay
Mostrando 1-7 de 7 artigos, teses e dissertações.
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1. NOVEL SUPERABSORBENT HYDROGEL COMPOSITE BASED ON POLY(ACRYLAMIDE-CO-ACRYLATE)/NONTRONITE: CHARACTERIZATION AND SWELLING PERFORMANCE
A novel superabsorbent hydrogel (SH) composite based on a poly(acrylamide-co-acrylate) matrix filled with nontronite (NONT), a Fe(III)-rich member of the smectite group of clay minerals, is described in this manuscript. A variety of techniques, including FTIR, XRD, TGA, and SEM/EDX, were utilized to characterize this original composite. Experimental data con
Quím. Nova. Publicado em: 2015-03
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2. Effect of reinforcement nanoparticles addition on mechanical properties of SBS/curauá fiber composites
Composites of styrene-butadiene-styrene triblock copolymer (SBS) matrix with curauá fiber and/or a nanoparticulate mineral (montmorillonite clay - MMT) used as reinforcing agents were prepared by melt-mixing. The influence of clay addition on properties like tensile and tear strength, rebound resilience, flex fatigue life, abrasion loss, hardness and water
Mat. Res.. Publicado em: 17/12/2013
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3. Adsorção do corante azul de metileno em partículas de argilominerais: análise dos tamanhos das partículas
Interactions of cationic dye methylene blue (MB) with clay particles in aqueous suspension have been extensively studied. As already known, the number of natural negative charges on the clay modifies significantly the particle sizes dispersed in water and therefore the nature of the interaction with the dye. This work evaluated with UV-Vis spectroscopy metho
Química Nova. Publicado em: 2011
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4. Caracterização dos solos na área do assentamento "Banco da Terra" (Fazenda Akolá), Londrina (PR)
This work had the purpose to contribute on improving database of physical site to enable useble inferences on soils manegements of Banco da Terra settlement (Fazenda Akolá), Londrina, Paraná State, were 42 families live and work. It was chosen soil sequencies with stage length for about 650 m and 10% of medium slope. Firstly, it were obtained four soil
Publicado em: 2010
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5. Fertirrigation with cattle wastewater in Tifton 85 grass and black oat: effects on soil and plants / Fertirrigação de capim-Tifton 85 e aveia preta com águas residuárias de bovinocultura: efeitos no solo e nas plantas
This study was conducted to evaluate the effects from the application of cattle wastewater (ARB) upon both physical and chemical properties of an Eutrophic Red Argisol and on the physiologic, nutritional and yield characteristics of the 85-Tifton grass (Cynodon spp.) and the black oat plant (Avena strigosa Schreb). The experiment was carried out in 20 draina
Publicado em: 2008
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6. Indicadores de qualidade do solo sob sistema de produção agrícola convencional em conversão para agroecológico
Microbial and biochemical indicators of soil quality, mainly those related to carbon and nitrogen cycling, are useful to access the effect of soil management and its effects on the sustainability of the agroecosystems. The aim of this work was to access changes occurring in the soil due to the transition from conventional to agroecological agricultural syste
Publicado em: 2007
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7. Propriedades de três amostras de solos da Zona da Mata de Pernambuco sob aplicação de carbonato de cálcio,carbonato de cálcio e magnésio e sulfato de cálcio / Properties of three soil samples of Mata region (Pernambuco state, Brazil) treated with calcium carbonate, calcium and magnesium carbonate, and calcium sulfate.
Samples of the surface and B horizons of a Plintosol as well as the B horizon of a Nitosol were treated with calcium carbonate, calcium and magnesium carbonate, and calcium sulfate. The objective was to study the effects of such amendments on chemical and physical properties of the soils. The experiment was carried out in a completely randomized design with
Publicado em: 2004