Emulsion stabilization by non-ionic surfactants: experiment and theory*
نویسندگان
چکیده
منابع مشابه
Colloid Surfactants for Emulsion Stabilization
In the classic solid particle-stabilized emulsions, typically referred to as Pickering emulsions, particles accumulate at the interface between two immiscible liquids and stabilize the emulsion drops against coalescence by forming a mechanically robust monolayer at the liquid-liquid interface. Particles adsorb to the interfaces to form a dense monolayer only under limited conditions that depend...
متن کاملEffective Surfactants Blend Concentration Determination for O/W Emulsion Stabilization by Two Nonionic Surfactants by Simple Linear Regression
In this work, O/W emulsion sets were prepared by using different concentrations of two nonionic surfactants. The two surfactants, tween 80(HLB=15.0) and span 80(HLB=4.3) were used in a fixed proportions equal to 0.55:0.45 respectively. HLB value of the surfactants blends were fixed at 10.185. The surfactants blend concentration is starting from 3% up to 19%. For each O/W emulsion set the conduc...
متن کاملThe determination methods for non-ionic surfactants
A large number of non-ionic surfactants are discharged into water, which cause deterioration of water quality. Non-ionic surfactants have become an indicator of water quality monitoring. This article provides an overview of the classification of non-ionic surfactants, introduces the nature and hazards of fatty alcohol ethoxylates and alkyl phenol ethoxylates, and analyzes determination of non-i...
متن کاملRole of Surfactants in Emulsion Polymerization Polymers by design
The determination of an emulsifier’s adsorption properties under conditions similar to those occurring during emulsion polymerization can provide important information to aid in the selection of the most appropriate surfactant for a given system. Results show that the latex particle size is dependent on the strength of emulsifier adsorption (∆Eads) at the particle/aqueous phase interface and is...
متن کاملA three stage model for adsorption of non ionic surfactants
The adsorption of nonionic surfactants onto both hydrophilic and hydrophobic surfaces has been extensively researched from the point of view of physical chemistry.i,2 In these studies nonionic surfactants were assumed to interact with both the surface and each other. The resultant adsorption isotherms were then explained in terms of interaction strength and surfactant orientation. A five stage ...
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ژورنال
عنوان ژورنال: Journal of Pharmacy and Pharmacology
سال: 1971
ISSN: 2042-7158,0022-3573
DOI: 10.1111/j.2042-7158.1971.tb08653.x