deagglomeration

deagglomeration

[‚dē·ə‚gläm·ə′rā·shən]
(chemical engineering)
Size-reduction process in which loosely adhered clumps (agglomerates) of powders or crystals are broken apart without further disintegration of the powder or crystal particles themselves.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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Equipped with a three-wing anchor and two disperser shafts, the VMC accomplishes intense mixing, high-speed dissolution, emulsification, deagglomeration and heat transfer in pastes, slurries, gels and suspensions up to several hundred thousand centipoise.
Equipped with a three-wing anchor and two disperser shafts, the VMC accomplishes intense mixing, high speed dissolution, emulsification, deagglomeration and superior heat transfer in pastes, slurries, gels and suspensions up to several hundred thousand centipoise, according to the company.
The new 4-gallon Planetary Dual Disperser (Model PDDM-4) is equipped with two High Viscosity Blades and two High Speed Dispersers; all four agitators rotate on their own axes while orbiting the vessel, ensuring rapid powder wet-out and deagglomeration. It is designed for vacuum operation and includes a jacketed mix vessel.
Thinky nanotechnology includes the Thinky NP-100 Nano Pulveriser for breaking up particles using impact fragmentation, taking larger particles down to nano-size, and the Thinky PR-1 Nanoparticle Dispersion Machine for nanoparticle dispersion and deagglomeration of CNT, graphene and other 2D nanomaterials.
Among his topics are surfactants used in agrochemical formulations and their solution properties, emulsion concentrates, oil-based suspension concentrates, interfacial aspects of agrochemical spray formulations, pigment dispersion and the role of surfactants in wetting, the breaking of aggregates and agglomerates (deagglomeration) and size reduction, interaction between food-grade surfactants and water, proteins as emulsifiers and their interaction with polysaccharides, and food rheology and mouth feel.
Equilibrium between adhesive-cohesive forces in the powder mixture and separation effort produced by the deagglomeration principal during inhalation should be adjusted to confirm the maximum powder homogeneity with reliable content uniformity and reproducible fine particle fraction (FPF).
The authors demonstrated size-related translocation with the smaller 7 nm primary gold particles translocating more than the 20 nm primary gold particles, suggesting deagglomeration of the 45 nm agglomerates in the lung.
"Many powders, including sodium chloride and ammonium sulfide, can harden into a solid block that cannot be dispensed into process liquids without deagglomeration, " said Scott Patterson, ILC Dover vice president of commercial sales.
Particle-surface interactions: charge transfer,energy loss, resuspension, and deagglomeration, Aerosol Science Technology 23: 2-24.
Thus, a very high conductivity in the polymer/CNT nanocomposites can be achieved by the presence of low amount CNT [28], However, due to the strong inter-tube van der Waals forces and the lack of interfacial interactions with the polymer matrix, CNTs tend to agglomerate to form the clusters (or insufficient deagglomeration) and often manifest a higher electrical percolation threshold with a lower effective L/D.
It was expected that surface modification promotes the deagglomeration of silicate fibers, thereby improving dispersion during melt compounding and enhancing some properties.
iron nitrate) of cNts was immersed in 500 mL of ethanol (ACS spectrophotometric grade, 95.0%, Sigma-Aldrich) and the mixture was sonicated using a probe type sonicator (VCX-750, Sonics & Materials, CT, USA) for deagglomeration and proper distribution inside ethanol solvent.
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