Akademik Veri Yönetim Sistemi
Avrupa Bilim ve Teknoloji Dergisi, sa.36, ss.26-31, 2022 (Hakemli Dergi)
In this study, the rheological properties of boric acid solutions prepared in glycerine in 0.1-1% aliquots by mass were investigated.
Rheological measurements were carried out at 20-50 oC using a stress-controlled rheometer. Rheological measurements were made with
two different methods, linear and non-linear viscoelasticity measurements. The variation of viscosity of the solution versus shear rate
in nonlinear viscoelastic measurements was investigated both for different mass fractions and for different temperatures at a constant
mass fraction. In another experimental step, the elastic behavior of the fluid was determined by measuring frequency dependent storage
G' and loss modulus G'' under small swing shear stress. As a result of detailed rheological analysis of the samples prepared in different
mass fractions; It was determined that all solutions showed fluid behavior in accordance with Newton's rule. It was also clearly seen
that the viscosity of the solutions decreased with increasing temperature. As a result of the linear rheological measurements performed,
it was observed that the solutions showed viscous behavior in the given frequency range, since G'' > G'.