Viscosity measurements indicate that the relative viscosity
increases with increasing nanoparticle volume fraction.
For clarity, we rewrite the Campbell-Forgacs model as a relative viscosity
and a shift factor, [a.
The other two new masterbatches--ZeMac Extend L65 and L68--are chain extenders and branching agents that convert low relative viscosity
(RV) nylon to branched high RV PA with higher mechanical and thermal performance than linear high RV nylon.
If any measure of MW is provided, it usually comes in the form of a value known as relative viscosity
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.
In the same frequency sweep at 80[degrees]C, [eta]* was determined for different DA 201 concentrations, and a graph with relative viscosity
values was generated in relation to the values of the compound without the process improver (figure 9).
The powerful Viscproll software provides determination of relative viscosity
based on accurate flow time measurements to 1/100 sec made under conditions of temperature control within 1/100 of a degree.
Specific viscosity in turn derives from relative viscosity
, of a solution to the solvent.
In capillary viscometer measurements, the relative viscosity
(dimensionless) is the ratio of the flow time for the solution (t) to the flow time for the solvent ([t.
The Einstein equation for the relative viscosity
of dispersions, (12), (13) [[eta].
The relative viscosity
data obtained from capillary viscosity measurements were converted to reduced viscosities, which were then plotted as a function of polymer concentration according to the Huggins equation (Huggins, 1942):
9, the relative viscosity
is shown for all the tests performed.