The separation of a substance into the smallest possible particles using another substance (the medium). Used in papermaking to homogenize pulp properties and remove impurities
Following the deinking process of waste papers, residual ink particles are dispersed into tiny bits that are usually invisible to the eye. Bleaching the fibres helps to remove the last of the inks and improve paper brightness.
Suspension and distribution of tiny particles (pigments) in a liquid (polymer matrix).
mixture of small particles (mineral or organic) in a homogeneous medium
A stable mixture of particles suspended in a fluid medium.
System composed of dispersed particles in a dispersion medium.
Because solid but ultrafine pigment particles don’t dissolve in the mixing water of concrete or mortar, they must be dispersed (de-agglomerated and uniformly distributed) in their cement pastes. Unlike some dyes or stains used in other industries, colouring pigments do not penetrate the particles of coarse aggregate, sand or cement in concrete or mortar.
The breakdown of soil aggregates on wetting into individual particles which create a milky suspension.
The disintegration of precipitated substances into fine particles, which are distributed throughout the solution. This process is also known as deflocculation.
Suspension of minute particles in a suitable medium.
Small particles of a substance evenly distributed throughout another substance. Dispersed particles are small, but remain larger than colloids.
Operation which results in solid or liquid particles entering into suspension in a fluid. Also applied to a two phase system in which one phase, known as the disperse phase, is distributed throughout the other, known as the continuous phase .
distribution of solid particles in a liquid
the degree to which ingredients in a mixture have been broken down into very small domains, the better to interact with each other; like grinding different kinds of rock into sand, after which they can mix more intimately with each other
The process whereby the structure or aggregation of the soil is destroyed so that each particle is separate and behaves as a unit.
A colloidal system characterized by a continuous (external phase) and a discontinuous (internal phase). Uniformity of dispersions can be improved by the use of dispersing agents.
The suspension of tiny particles, usually pigments, in a liquid, usually resin.
A uniform distribution of solid particles in a vehicle.
System of suspending particles (fine) in fluid.
The process of separating pigment agglomerations into smaller particles and mixing them into the binder.
A stable or unstable system of fine particles, larger than colloidal size, evenly distributed in a medium.
The breaking down of a pigment aggregate into its individual particles, by the application of mechanical work.
Any mixture where one substance is very intimately intermingled with another. Most frequently a dispersion refers to a colloidal suspension.
The breaking up of a particle aggregate into separate particles without changing the particle size.
Measure, at both the microscopic and macroscopic levels, of how a pigment, filler or additive is completely distributed throughout a polymer matrix. It is probably one of the most fundamentally important properties of any masterbatch.
Finely divided particles of a material in suspension in another substance.
Dispersion occurs when a soil is . When a sodic soil is wetted the clay particles are forced apart. This is generally a major cause of erosion.