relative viscosity

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rel·a·tive vis·cos·i·ty

the ratio of the viscosity of a solution or dispersion to the viscosity of the solvent or continuous phase.
References in periodicals archive ?
A further comparison shows that the relative viscosity of TLCP/Si[O.sub.2]/PC composite was lower than that of corresponding TLCP/PC blend with the same TLCP content.
Pal [17] developed four semiempirical equations for the relative viscosity of bubble-bearing suspensions, and discussed the equations at two extreme cases (i.e., Ca[right arrow]0 for rigid bodies and Ca[right arrow][infinity] for purely deforming bodies).
The relative viscosity [[eta].sub.r], defined as the ratio of the Newtonian complex viscosity of the composite to that of the PP matrix, is plotted as a function of volume fraction in Fig.
where [eta]sp and [eta] [9] correspond to specific viscosity and relative viscosity, respectively, and c corresponds to the polymer concentration in g x [dL.sup.-1].
Where: nr = nrel = n / no / (the relative viscosity), nsp = nrel - 1 (specific viscosity), [n]h = lim Ca0 nred, [n]k = lim Ca0 ninh, [n]m = lim Ca0 ln nred, [n]sb = lim Ca0 nred, [n]SC and [n]DB are the intrinsic viscosities correlated with equations.
Viscosity measurements indicate that the relative viscosity increases with increasing nanoparticle volume fraction.
Viscosity measurement of a mixture was held at a certain concentration of a nanopowder, and the relative viscosity was calculated by dividing the measured data to the viscosity of a pure (initial) liquid at the same temperature [31].
The first two, ZeMac Extend L65 and L68 masterbatches, are chain extenders and branching agents that convert low relative viscosity (RV) PA to branched high RV PA with higher mechanical and thermal performance than linear high RV PA, These masterbatches can also be used for upgrading recycled or prime nylon compounds.
If any measure of MW is provided, it usually comes in the form of a value known as relative viscosity. This is a value based on the same type of solvent-based test used for intrinsic viscosity, but the units in which the results are reported are often different.
In this condition a link between rheological properties (relative viscosity) of activated sludge and its solid concentration (TSS%) by means of a mathematical model of [[eta].sub.r] = f (TSS%, [??]) type was proposed.
Comparison of results obtained using different geometric parameters of rotational viscometer with coaxial cylinders indicated that geometric parameters of the viscometer affect the results on rheological properties of the cement paste that can be directly and quantitatively compared not by the plastic viscosity but by the relative viscosity of the plastic (Lapasin et al.