Argilas especiais: argilas quimicamente modificadas - uma revisão


Autoria(s): Coelho,Antonio Carlos Vieira; Santos,Pérsio de Souza; Santos,Helena de Souza
Data(s)

01/10/2007

Resumo

The simultaneous use of the specific values of some structural and chemical properties of clay minerals, such as kaolinite, montmorillonite and talc, allows the development of new properties for these materials, especially in relation to the external and internal microcrystal surfaces. These developments are very diversified for montmorillonite, due to the high specific surface area, expansible basal spacings, easy intercalation inside the 2:1 structural layers and a reversible and high cation exchance capacity. The review presents examples of chemical modifications on kaolins, montmorillonites (bentonites) and talcs.

Formato

text/html

Identificador

http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422007000500042

Idioma(s)

pt

Publicador

Sociedade Brasileira de Química

Fonte

Química Nova v.30 n.5 2007

Palavras-Chave #special clays #chemically modified clay #surface modified clays
Tipo

journal article