peptization


Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.
Related to peptization: Co-precipitation

pep·ti·za·tion

(pep'ti-zā'shŭn),
In colloid chemistry, an increase in the degree of dispersion, tending toward a uniform distribution of the dispersed phase.

peptization

(pĕp″tĭ-zā′shŭn) [Gr. peptein, to digest]
In the chemistry of colloids, the process of making a colloidal solution more stable; conversion of a gel to a sol.
References in periodicals archive ?
Again, 2 mL 0.1 mol L-1 HNO3 was dropped over the swollen hydrogel discs and left for 15 minutes to terminate peptization. Hydrogel discs were sonicated in distilled water to remove the TiO2 layers that were not physiosorbed.
After that, acid peptization occurs where HNO3 molecules penetrates hydrogel.
For this purpose, the porous hydrogels with different morphologies were used in TiO2 loading using an acid peptization method at room temperature.
The peptization of units and the increase of aggregate stability of suspensions can be observed.
When a low surface area adsorbent (the red or yellow dispersant) is present, an excess of the triblock in the aqueous phase builds, and the interaction of the oxyethylene units with the talc surfaces begins a peptization of large platelet aggregates that results in an increasingly competitive adsorbent surface area to the colorant's surface area.
The 300% modulus, being a measure of strain-induced crystallization, responds to higher degree of peptization. At the same time, the trend is reversed the moment the network is opened with oil addition.
In the case of tensile strength, a moderate opening of the network (10 pht oil added) with a controlled molecular breakdown on peptization is advantageous.
Liquid polysulfide polymers, such as the Thiokol LP series (Morton International), are also able to form reactive crosslinking short chains through accelerator peptization of the sulfurs in the polymer chain.
Peptization - Premastication is both time- and energy-consuming.
High rotor speed peptization of natural rubber results in an unhomogeneous product which exhibits extreme surface stickiness (ref.
The lowest minimum viscosity observed in the experimental runs was 1.1 units, (which is low for a polychloroprene compound, and achievable in this case through the peptization of the polymer) and that compound had levels of -2A, -2B and +2C.