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Revista mexicana de ingeniería química

versão impressa ISSN 1665-2738

Rev. Mex. Ing. Quím vol.13 no.1 Ciudad de México Abr. 2014

 

Materiales

 

Membranas porosas con estructura de panal formadas a partir de condensación de agua

 

Honeycomb structured membranes formed via water condensation

 

R. López-Simeon1, M.G. Abonce-Vázquez2, M. Hernández-Guerrero2*

 

1 Universidad Autónoma Metropolitana Unidad Iztapalapa , San Rafael Atlixco 186 Col. Vicentina, C.P. 09340, México, D.F., México.

2 Departamento de Procesos y Tecnología, Universidad Autónoma Metropolitana Unidad Cuajimalpa, Av. Vasco de Quiroga 4871, Colonia Santa Fe Cuajimalpa, Delegación Cuajimalpa de Morelos, México, Distrito Federal, C.P. 05300. *Autora para la correspondencia. E-mail: mhernandez@correo.cua.uam.mx.

 

Recibido 16 de febrero de 2012.
Aceptado 29 de Noviembre de 2013.

 

Resumen

Para la fabricación de materiales micro y nano-estructurados, existen las técnicas descendentes o "top-down" y las técnicas ascendentes o "bottom-up". Estas técnicas de estructuración han sido ampliamente utilizadas, sin embargo las demandas de nuevos materiales han derivado en el desarrollo de técnicas más versátiles. Una de ellas, es la técnica de formación de membranas porosas con estructura de panal a partir de condensación de agua. Esta es una técnica ascendente de auto-ensamblado que presenta ventajas ante las técnicas convencionales para estructurar materiales porosos. En esta revisión se presentan los orígenes de la técnica, el mecanismo de formación de las membranas, las variables de proceso, así como también aspectos relevantes acerca de la caracterización de las membranas y sus aplicaciones actuales y propuestas.

Palabras clave: membranas porosas, condensación, materiales estructurados, autoensamblado, técnicas ascendentes.

 

Abstract

"Top-down" and "bottom-up" techniques are used for the fabrication of micro and nano-structured materials. These structuring techniques have been widely used, however new and more versatile techniques have been developed in order to meet the requirements for new materials. One of these new techniques allows for the formation of honeycomb porous membranes through the use of water condensation. This is a "bottom-up" technique that has some advantages over the traditional methods to structure porous materials. In this review, we present aspects on the origin of the technique, the mechanism of formation of the membranes, the process variables, characterization of the membranes and their current and proposed applications.

Keywords: porous membranes, condensation, structured materials, self-assembly, bottom-up techniques.

 

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Agradecimientos

Las autoras agradecen financiamiento CONACYT (CB-134267) y PROMEP (UAM-PTC-140). Roxana López Simeon agradece el apoyo CONACYT (34852).

 

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