zwitterionic surfactant

zwit·ter·i·on·ic sur·fac·tant

a dipolar surfactant.
Farlex Partner Medical Dictionary © Farlex 2012
References in periodicals archive ?
Hussein, "Rheology of a viscoelastic zwitterionic surfactant used in acid stimulation: Effects of surfactant and electrolyte concentration," Journal of Petroleum Science and Engineering, vol.
Betaine is a main type of zwitterionic surfactant. It shows characteristics of different ionic surfactant under different conditions owing to having anionic and cationic groups at the same time.
Treatment of grass silage (10 ml/kg) with a combination of Metarin F (0.2 g/L), a zwitterionic surfactant and glyceryl-polyeththylene-glycol ricineoleate (0.01 g/L), a non-ionic surfactant failed to improve fermentation characteristics but combining the surfactants with a homolactic inoculant containing L.
N-n-Dodecyl-N, N-Dimethyl Betaine is a Zwitterionic surfactant
The oily phase has combination of one or more immiscible oils selected from sesame oil, soybean oil, canola oil, coconut oil, fractionated coconut oil, fish oil, or mineral oil, and one or more flavor oils, further comprising an organic acid selected from benzoic acid, sorbic acid, malic acid, citric acid and salicylic acid; and a surfactant selected from an anionic surfactant, a zwitterionic surfactant and a nonionic surfactant or combination thereof.
A hydrophobically-modifed polymethacrylate (acrylates/beheneth-25 methacrylate--Novethix L10 polymer from Lubrizol) finds use in difficult-to-thicken zwitterionic surfactant systems.
6,184,190 B1: Researchers for Colgate-Palmolive have earned a patent for a body cleansing solution that includes an aqueous solution of an alpha olefin sulfonate surfactant, an alkyl polyglucoside, a disinfecting agent, a zwitterionic surfactant, an alkali metal halide and water.
For zwitterionic surfactants, amines or quaternary ammonium cations make up the cationic part and the anionic portion is commonly a sulfonate or carboxylate.
Catanionic and zwitterionic surfactants are different from typical anionic and cationic surfactants.
Molecules of ionic, anionic and zwitterionic surfactants reduce filter paper reflectance and increase photocopy paper reflectance.
Cationic, anionic, and zwitterionic surfactants are charged species and obviously can only be used in formulations where the charge can be tolerated.
of a co-surfactant constituent selected from the group consisting of nonionic, cationic, amphoteric, zwitterionic surfactants, and mixtures thereof; one or more constituents selected from the group consisting of coloring agents, fragrances and fragrance solubilizers, viscosity modifying agents thickeners, pH adjusting agents and pH buffers, optical brighteners, opacifying agents, hydrotropes, abrasives, and preservatives; and water.