The zeta potential arising from cationic surfactant adsorption in non-aqueous dispersions of carbon black

The mechanism of particulate soil detergency using aqueous surfactant systems is not well understood. In this research, carbon black (model hydrophobic soil) removal from a hydrophilic (cotton) and hydrophobic (polyester) fabric is studied using anionic, nonionic, and cationic surfactants. The zeta potential, solid/liquid spreading pressure, contact angle and surfactant adsorption of both soil and fabric are correlated to detergency over a range of surfactant concentrations and pH levels. Electrostatic repulsion between fabric and soil is generally found to be the dominant mechanism responsible for soil removal for all surfactants and fabrics. Steric effects due to surfactant adsorption are also important for nonionic surfactants for soil detachment and antiredeposition. Solid/liquid interfacial tension reduction due to surfactant adsorption also aids in detergency in cationic surfactant systems. Wettability is not seen as being an important factor and SEM photos show that entrapment of soil in the fabric weave is not significant; the particles are only attached to the fabric surface. Anionic surfactants perform best, then nonionic surfactants. Cationic surfactants exhibit poor detergency which is attributed to low surfactant rinseability.

show abstract

Mechanistic Studies of Particulate Soil Detergency: I. Hydrophobic Soil Removal

Rojvoranun

Chadavipoo

Pengjun

et al. 2011

J Surfact & Detergents

View full text Add to dashboard Cite

show abstract

The influence of functional groups on the surface acid-base characteristics of carbon blacks

Aricò¹,

Minutoli²,

Giordano³

1989

Carbon

View full text Add to dashboard Cite

Effect of cationic surfactant and block copolymer on carbon black particle surface charge and size

Ridaoui

Jada

Vidal

et al. 2006

Colloids and Surfaces A: Physicochemical and Engineering Aspect

View full text Add to dashboard Cite

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

The zeta potential arising from cationic surfactant adsorption in non-aqueous dispersions of carbon black

Cited by 4 publications

References 22 publications

Mechanistic Studies of Particulate Soil Detergency: I. Hydrophobic Soil Removal

Mechanistic Studies of Particulate Soil Detergency: I. Hydrophobic Soil Removal

The influence of functional groups on the surface acid-base characteristics of carbon blacks

Effect of cationic surfactant and block copolymer on carbon black particle surface charge and size

Contact Info

Product

Resources

About