Non Ionic Latex
Mostrando 1-4 de 4 artigos, teses e dissertações.
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1. Microscopical study of nanometric particles adhesion / Estudo microscopico de adesão de particulas nanometricas
The adhesion of nanometric phases is a topic of increasing scientific interest due to its importance for the production and properties of new nanostructured materials. This study explores the following hypothesis: immiscible and wettable particles carrying charges with same signal can adhere provided that they are mixed in aqueous dispersion and dried out. T
Publicado em: 2009
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2. Aditivação de pastas geopoliméricas com tetraborato de sódio e látex não iônico para cimentação de Poços de Petróleo
The development of activities in the oil and gas sector has been promoting the search for materials more adequate to oilwell cementing operation. In the state of Rio Grande do Norte, the cement sheath integrity tend to fail during steam injection operation which is necessary to increase oil recovery in reservoir with heavy oil. Geopolymer is a material that
Publicado em: 2007
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3. Estabilização de latex polimericos por sorção de solventes organicos
The colloidal stability with regard to NaCI addition of homopolymer (PS-M and PS-LEV) polystyrene latexes and copolymer (P(SBMA), PS/PBMA and PBMA/PS) poly[styrene-co- butylmethacrylate)] latexes was modified by particle swelling with toluene and chloroform vapor, at 25°C. The latexes were obtained by aqueous emulsion polymerization. K2S2O4 and Na2S204 were
Publicado em: 1998
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4. Obtenção e caracterização de filtros de profundidade de crisotilas brasileiras
Chrysotile asbestos has been used in the manufacture of deep filtration filters since longo, owing to its high specific surface area and its positive surface charge. However, as in the case of other natural materials, the performance of the filters depends very strongly on the chrysotile origin. Filters obtained from brazilian asbestos have considerabily poo
Publicado em: 1989