phase inversion


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phase inversion

[′fāz in‚vər·zhən]
(electronics)
Production of a phase difference of 180° between two similar wave shapes of the same frequency.
References in periodicals archive ?
Both measurements of phase inversion in the middle of the pipe and at the wall showed very few differences between the o/w [right arrow] w/o and w/o [right arrow] o/w inversion routes (Figures 3 and 5), suggesting that there is no hysterisis effect (or ambivalent range) in the current pipeline system.
In addition, it optimizes the phase inversion occurring si-multaneously in dynamically crosslinked TPVs, according to the company.
A 180 [degrees] phase inversion occurs at maximum attenuation when the resistance equals 50 [Omega].
Exchange of solvent and nonsolvent introduces the phase inversion of PAA, leaving the pores in the hollow fiber membrane matrix.
In 1998, Kim and Lee [5] studied the effect of PEG on membrane formation by phase inversion. They found that the PEG behaves as a pore-forming agent.
employed dry phase inversion (solvent evaporation) for the formation of molecularly imprinted membranes using peptide recognition groups with polystyrene resins in a blend with a crosslinked polymer [15 16].
After the phase inversion, the differences observed during water evaporation can still be seen.
(6) Saw, L.K., "Phase Inversion of Polyurethane Prepolymer-Water Dispersions," Ph.D.
This suggests that phase inversion does not play a role in interpreting the data in figure 3.
The mechanism involving phase inversion is a rate process, governed by the competing processes of droplet breakup and coalescence of the droplets.
Kinetics of phase inversion influences the surface hydrophilicity and roughness, thereby impacting the fouling of the membrane.