Characterization of hexadecyltrimethylammonium-organoclay and its individual components by thermal techniques

NARANJO PABLO; EDGARDO L. SHAM; TORRES, ELSA MÓNICA FARFÁN

BULLETIN OF MATERIALS SCIENCE

INDIAN ACAD SCIENCES

Lugar: Bangalore ; Año: 2017

0250-4707

The properties of the materials determine his potential applications. The aim of this article is to study theproperties of the organoclays using simple and rapid technologies. Organoclays with different surfactantloadings (SL) were synthesized using an Argentine bentonite with a high content of montmorillonite (Bent)and hexadecyltrimethylammonium bromide as cationic surfactant. The samples were characterized usingthermal techniques. The results revealed that the hydrophilicity of the organoclays decreases withincreasing SL until the SL reaches 0.8 times the cation exchange capacity of the clay; and remains constantat a higher surfactant load. The stability of organoclays was inversely proportional to the SL of eachsample. The layers showed a stabilization of approximately for their structural transformationtemperature, caused by the presence of the surfactant. In addition, at a SL 1.0 the structure was ?solid-like?.