Coagulation Kinetics and Structure Formation

Name: Coagulation Kinetics and Structure Formation
Brand: Springer-Verlag New York Inc.
SKU: 9781475706192
Price: 52.83 EUR
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Автор: H. Sonntag, K. Strenge

Език:

Корици: С меки корици

Издател: Springer-Verlag New York Inc.

Наличност: Външен склад

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Colloidal dispersions play a very important role in nature, industry, and daily life. Sometimes, lon...

Информация за книгата

Автор

H. Sonntag, K. Strenge

Език

Английски език

Корици

Книга - С меки корици

Издадена

2013

страници

180

EAN

9781475706192

ISBN

1475706197

Enbook ID

02254014

Издател

Springer-Verlag New York Inc.

Теглоt

385

Размери

170 x 244 x 11

Пълно описание

Colloidal dispersions play a very important role in nature, industry, and daily life. Sometimes, long-term stability is observed or desired as in ferrotluids (composed of very small magnetic particles with radii of ~ 10 nm), which must be stable even in external fields. On the other hand, only short-term stable dispersions may be necessary during actual processing operations, for example, dispersions of magnetite particles during tape manufacture. The stability of dispersions and many of their physical properties are related to the interaction between the particles in the dispersion medium, which may contain surfactants or macromolecular species. If the net interparticle interaction forces are attractive, then aggregation may occur. Two general types of aggregation behavior may be distinguished: coagulation and flocculation. These two terms are frequently used synonymously but IUPAC has recommended the following definitions: Coagulation implies formation of compact aggregates, leading to the macroscopic separation. Flocculation implies the formation of a loose or open network, floc, which may or may not separate macroscopically. Flocculation brought about by the simultaneous coadsorption of polymer molecules on two (or more) particles is referred to as bridging flocculation. If coagulation results in the merging of two particles into one, as may occur with liquid droplets in emulsions, this process is referred to as coalescence.

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