SYNTHESIS AND STRUCTURAL STUDY OF ORGANOCLAYS FROM BINH THUAN BENTONITE WITH HEPTYLTRIPHENYLPHOSPHONIUM BROMIDE

Abstract

Organoclay is synthesized from bentonite Binh Thuan and heptyltriphenylphosphonium bromide (HTPB)
by wet method. The influence of organoclay making process on the distance of the organoclay layers
(d001) and the level of intrusion HTPB into bentonite were studied. By X-ray diffraction method, the direct
method calcined sample, we determined suitable conditions for preparing organoclays from bentonite
(Binh Thuan) and HTPB: reaction temperature is 50oC, the volume ratio HTPB/bentonite is 0.5, pH
reactionis 9, the reaction time is 4h. The product is dried for 48 hours at 80oC. Organoclay synthesis is
studied by the methods as XRD, IR, TGA, EDX. The d001 and organic content in the respective product is
19,455Å; 16,69%