Dispersed Phase


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Related to Dispersed Phase: Continuous phase, sol, Tyndall effect
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Dispersed Phase

 

the aggregate of small, uniform solid particles, droplets of liquids, or bubbles of gas that are uniformly distributed in the surrounding (dispersion) medium. The dispersed phase and the dispersion medium form disperse systems.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
When the dispersed phase is distributed as discrete domains in thermoplastic/elastomer blends, the particle size can be represented by a log-normal distribution [47].
Moreover, the addition of SEBS could make the dispersed phase act as toughening particles of the blends, because of that SEBS was found to be compatible with PPO due to PS blocks.
Those results of sample (A) can be explained by the viscosity ratio of p= 0.13, the furthest from 1 of the tested blends (1 means that the viscosities of matrix and dispersed phase are equal).
In high viscosity ratio ([[eta]s.sub.d]/[[eta].sub.m]) blend systems, the low-viscosity matrix cannot efficiently transfer shear stresses to the high-viscosity dispersed phase and acts as a lubricating phase around the dispersed phase to reduce the break-up of droplets [34], Therefore, the dispersed phase was dispersed with non-uniform domains in the continuous TPU phase.
The drop in tack is caused by a phase inversion, where the continuous phase is predominantly resin, and rubber is the dispersed phase.
PA6/CNT nanocomposites from PA6/ CNT Nanocomposites section were incorporated as masterbatches into PP (PP/PA6-CNT: 80/20 wt/wt) as the dispersed phase. The components were blended in the internal mixer at 240[degrees]C with a rotational speed of 50 rpm for 5 min.
The scientists found that by using release half-life (t50) as an indicator, a wide range of release rates, ranging from three minutes to 62 minutes, could be achieved, by simply adjusting the zein concentration in the dispersed phase, and the continuous and dispersed phase flow rates.
Average diameter of the PCL dispersed phase. Average diameter of the disperse Standard System phase ([micro]m) deviation PLA/PCL 0.97 0.54 PLA/PCL/CNT 1.32 1.14 PLA/PCL + CNT 1.07 1.10 PLA/CNT + PCL 1.32 1.39 PCL/CNT + PLA 1.18 1.41 PLA/PCL/GN 2.03 1.00 PLA/PCL + GN 2.03 0.97 PLA/GN + PCL 1.94 1.14 PCL/GN + PLA 2.04 1.23
If the pH value becomes too low, the acidity difference between the material liquid phase and the dispersed phase is too subtle and the migration effect will not be satisfying; If the pH of the material liquid becomes too high, it may cause the rare earth metal ion hydrolyse or form hydroxy complex, which affects the migration rate [27].
An increase in water (dispersed phase) contents increased the number of droplets per volume of the emulsion resulting an increase in collision frequency and hence the stability was decreased (Fig.
Thus, values of the parameters increase uniformly with increase in the dispersed phase concentration in emulsions.
In the present model, particle convective and radiative heat transfer coefficient consisted of the clusters and dispersed phase so the above equation can be written as: h = fhwc + (1-f) hd + f (hwcr + (1-f) hdr (2)