- Preparation of Organo Clay and Poly Acrylonitrile – Composite from Iraqi Bentonite تحضير الطين العضوي وتركيب البولي اكيريلو نايتريل من البنتونايت العراقي

Abstract

This study aimed to prepare pure (activated bentonite) clay with reduced particle size which is starting material to produce better physical and chemical properties of organoclay and poly nano-composite. Reduced particle size of clay was prepared from agitation process, which produced a purified and reduced particle size of activated bentonite for a period of time, [D50 and D90 (particle size distribution)] equal to (198 and 10027nm) respectively. Another stage was used to improve (D50 and D90) of the reduced particle size clay by using shear mixing method giving (D50 and D90) equal to (157 and 5533 nm) respectively at speed=3 and time of (30 min). Organoclay was prepared from reaction of quaternary amine (cetyl tri-methyl ammonium chloride) with reduced particle size of clay at optimum condition of (20 %) quaternary amine to reduced particle size of clay give increasing in d-space (from X-RAY pattern) from (12˚A to 16.8˚A). Poly nano composite was studied by in-situ intercalation method using acrylonitrile as monomer and the reduced particle size of clay, different concentrations of clay and acrylonitrile were tested, best concentration of acrylonitrile to reduced particle size of clay was (5 %) giving d-space (from X-RAY pattern) equal to (13.6˚A).