surface-active


Also found in: Dictionary, Thesaurus.
Related to surface-active: nonionic surfactant

sur·face-ac·tive

(sŭr'făs-ak'tiv),
Indicating the property of certain agents of altering the physicochemical nature of surfaces and interfaces, bringing about lowering of interfacial tension; they usually possess both lipophilic and hydrophilic groups.
See also: surfactant.

sur·face-ac·tive

(sŭr'făs-ak'tiv)
Indicating the property of certain agents of altering the physicochemical nature of surfaces and interfaces, bringing about lowering of interfacial tension; they usually possess both lipophilic and hydrophilic groups.
See also: surfactant
References in periodicals archive ?
In this study the microwave-assisted transesterification between CMC and the triacyl glycerides of rapeseed oil was investigated and the chemical, surface-active and associative properties of the obtained water-soluble amphophilic CMC derivatives were characterized.
To this end, we used two different surface-active agents, the detergent Tween 20 and ethanol, to decrease the surface tension of the water.
Modification of as-cast HSS with inoculants and surface-active elements provides favourable structural changes that benefits in improved mechanical properties of as-cast HSS and finally in enhanced cutting performance of these steels.
New surface-active, molecular defoamers have been developed to address some of the issues seen with these conventional defoamers.
The role of surface-active agents, solvents, and resin chemistry on the adhesion/cohesion will be illustrated.
For the more surface-active agents, large deviations between the surface tension-bubble life time isotherms are observed, which is an indicator that the frothing agents accumulated in the foam.
The S-5 surfactant mixture represents a balance of anionic and nonionic surfactants; removing the two more surface-active components makes the S-3 surfactant combination a nonionic package only.
In a wet autumn, slugs breed rapidly from this reservoir and grow, so new slugs become surface-active as autumn progresses.

Full browser ?