Studies on Pharmaceutical Suspensions. (1). On the Structural Viscosity of Oil Suspensions
نویسندگان
چکیده
منابع مشابه
Influence of Particle Shape on the Viscosity of Kaolin Suspensions
The influence of particle shape (aspect ratio) on the intrinsic viscosity is investigated, taking three Czech kaolin products (floated kaolins) as paradigmatic examples. An average aspect ratio is obtained for each kaolin from a comparison of particle size measurements using sedimentation and laser diffraction. The intrinsic viscosity is obtained by a multistep procedure: firstly, flow curves a...
متن کاملOn the Viscosity of Concentrated Suspensions of Charged Colloids
This work is concerned with the theoretical estimation of the low-shear viscosity of concentrated suspensions of charged-stabilized latex particles. Calculations are based on the assumption that particles interacting through purely repulsive potentials behave as equivalent hard-spheres (HS), and suspension viscosity may be analyzed in the framework of HS systems. In order to predict numerically...
متن کاملNew confinement effects on the viscosity of suspensions
We present rheological experiments of confined suspensions at moderate concentrations. The analysis is carried out in the framework of a previous study on particle suspensions [Davit and Peyla, EPL, 83, 64001 (2008)] where simulations revealed the presence of unusual effects attributed to confinement, i.e. when the gap size (h) becomes closer to the particle size (d). Deviations from the usual ...
متن کاملViscosity of two-dimensional suspensions.
Over a range of conditions, lipid and surfactant monolayers exhibit coexistence of discrete solid domains in a continuous liquid. The surface shear viscosity, mu(s), of such monolayers collapses onto a single curve: mu(s)/mu(so) = [1-(A/A(c))](-1), in which mu(so) is the viscosity of the liquid phase, A is the area fraction of the solid phase measured by fluorescence microscopy, and A(c) is a c...
متن کاملCultivation Studies on Wart Suspensions of Verruca
The recent report by Bivins (1) on the successful cultivation of the wart agent on the chorioallantoic membrane (CAM) of embryonated hen's eggs and the report by Strauss, Bunting and Melnick (2) on the electron microscopy of elementary virus bodies in wart tissue prompted the undertaking of similar and extended experiments in this laboratory. Felsher (3) had ground up 3 warts in saline and had ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Chemical and Pharmaceutical Bulletin
سال: 1968
ISSN: 0009-2363,1347-5223
DOI: 10.1248/cpb.16.171