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Influência da vermiculita expandida na resistência à compressão e reologia de pastas cimentantes de poços de petróleo
(Universidade Federal do Rio Grande do NorteBRUFRNPrograma de Pós-Graduação em Ciência e Engenharia de MateriaisProcessamento de Materiais a partir do Pó; Polímeros e Compósitos; Processamento de Materiais a part, 2009-04-30)
Several problems related to the loss of hydraulic seal in oilwells, causing gas migration and/or contamination of the production zone by water, have been reported. The loss of the hydraulic seal is a consequence of cracks ...
Strength anisotropy in building granites
(International Journal of Architectural Heritage, 2017)
Throughout history, natural stones have been used as building materials in the architectural heritage.
The purpose of this research is to assess the influence of anisotropy on building granites’ behavior.
This article deals ...
Rheological and barrier properties of nanocomposites of HDPE and exfoliated Montmorillonite
(Sage Publications Ltd, 2014-01-01)
Polyethylene (PE) / clay nanocomposites were prepared by melt mixing using polyethylene grafted with maleic anhydride (PEg) as compatibilizer. Concentrations between 2 and 15 wt% of an organophilic montmorillonite (MMT) ...
Effect of Clay Content and Speed Screw Rotation on the Crystallization and Thermal Behaviors of Recycled PET/Clay Nanocomposites
(Amer Scientific PublishersStevenson RanchEUA, 2009)
In situ synthesis, morphology, and thermal properties of polystyrene-MgAl layered double hydroxide nanocomposites
(Wiley-blackwellHobokenEUA, 2012)
Exfoliative Cheilitis More than an Aesthetic Problem: Case ReportQueilitis exfoliativa más que un problema estético: reporte de casos
(Universidad de Costa Rica, 2022)
Percolated non-Newtonian flow for silicone obtained from exfoliated bioinorganic layered double hydroxide intercalated with amino acid
(ELSEVIER SCIENCE BVAMSTERDAM, 2012)
A simple and scalable procedure was used to obtain thin, stable, homogeneous, and easy-to-handle films composed of silicone derived from dimethicones containing dispersed hydrotalcite-type materials previously organo-modified ...
Highly Controlled Diffusion Drug Release from Ureasil-Poly(ethylene oxide)-Na+-Montmorillonite Hybrid Hydrogel Nanocomposites
(2018-06-06)
In this work, we report the effects of incorporation of variable amounts (1-20 wt %) of sodium montmorillonite (MMT) into a siloxane-poly(ethylene oxide) hybrid hydrogel prepared by the sol-gel route. The aim was to control ...
Obtenção de nanocompósitos de poliamida 6 / argila nacional com diferentes agentes compatibilizantes
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-Graduação em Ciência e Engenharia de Materiais - PPGCEM, 2005-09-01)
The formation of nanocomposites well exfoliated is dependent of several factors, like organic treatment with appropriate ammonium quaternary salts to promote adequate interaction between polymer and clay. The objective of ...