A simple route to suspend boric acid in non-polar media

Abstract

It is a very challenging purpose to suspend a nanoparticle in a non-polar medium. In this study, stable nanofluid of nanostructured lamellar boric acid (nBA), which is highly hydrophilic compound (log Kow value is 0.18), to be suspended in non-polar media was successfully prepared. Group III base oil; i.e. mineral base oil, was used for modeling non-polar media. According to characterization examinations, optimal nBA nanofluid adding ratio is found to be 3%. Viscosity analyses were held by Brookfield DV2T® Viscometer. Friction effect of adding the nBA nanofluid into base oil was characterized by a reciprocating tribometer. Stability of nanofluid suspension in base oil was characterized by Turbiscan Tower® instrument. Viscosity of original base oil was decreased by 2.88% at 100 °C, friction coefficient value of base oil was decreased by 2.91%; Turbiscan Stability Index (TSI) values of prepared sample was 2.9. These characterizations showed that boric acid, a highly hydrophobic material, suspended in a non-polar environment with the help of a simple route containing auxiliary chemicals and ultrasonic horn.

Fabrication and Characterization of Prochloraz Nanoemulsion against Penicillium citrinum for the Postharvest Storage of Navel Oranges

“…After monitoring the internal changes, the TSI was calculated to evaluate the nanoemulsion stability from Turbiscan easy soft and provide a unique parameter. The smaller the TSI value, the more stable will be the nanoemulsion. , This TSI was calculated with formula . where n is the number of scan times, x i is the measured average backscattered light intensity per minute, and x BS is the average x i .…”