Science and Technology Production
Congress
Authorship
Romina Ollier
;
David A. D'Amico
;
SCHROEDER, WALTER FABIAN
;
Vera A. Alvarez
;
Viviana P. Cyras
Date
2013
Publishing House and Editing Place
XV International Clay Conference
Summary
Information provided by the agent in
SIGEVA
The main objective of the present work was to study the effect of chemical modifications (cation exchange, grafting and activation) of bentonite (Bent) in order to improve the compatibility with polymeric matrices for the future development of nanocomposites with optimized final properties for several applications. The clay employed in this work was a bentonite supplied by Minarmco S.A. (Neuquén, Argentina). The organic modifiers were dimethyloctadecylchlorosilane (DMOCS) and tributylhex...
The main objective of the present work was to study the effect of chemical modifications (cation exchange, grafting and activation) of bentonite (Bent) in order to improve the compatibility with polymeric matrices for the future development of nanocomposites with optimized final properties for several applications. The clay employed in this work was a bentonite supplied by Minarmco S.A. (Neuquén, Argentina). The organic modifiers were dimethyloctadecylchlorosilane (DMOCS) and tributylhexadecylphosphonium bromide (TBHP). One single step and multi-step modifications were performed: cation exchange (E), activation (A) and grafting (G) and the effect of each treatment was analyzed. All modified bentonites were characterized by means of X-rays diffraction analysis (XRD), Thermogravimetric analysis (TGA), Fourier transform infrared (FTIR) and water absorption tests.
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Key Words
SILANEGRAFTINGCHEMICAL MODIFICATIONBENTONITE