Surfactant Formulation Engineering using HLD and NAC

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Edgar Acosta (Professor, Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, ON, Canada) Jeffrey Harwell (University of Oklahoma, OK, USA)

Surfactant Formulation Engineering using HLD and NAC

Edgar Acosta (Professor, Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, ON, Canada), Jeffrey Harwell (University of Oklahoma, OK, USA), David A. Sabatini (University of Oklahoma, USA)

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English

Butterworth-Heinemann Ltd
18 April 2025

Chemistry

Surfactants are molecules that contain groups that are water-loving (hydrophilic) and oil-loving (lipophilic). The central question in formulations is often which of the two portions dominate the behavior of the surfactant. For many years that question was answered in terms of the surfactant structure only. However, the modern view is that the hydrophilic-lipophilic nature of the surfactant is the result of surfactant structure and formulation conditions (nature of the oil, temperature, aqueous phase composition) as captured by a semi-empirical equation called the hydrophilic-lipophilic difference (HLD). The HLD is a dimensionless number that indicate the approach to the point where the surfactant inverts its solubility from being water-soluble (negative HLD) to oil-soluble (positive HLD). The HLD alone is a good indicator of how the formulation could behave but it does not produce any formulation property that can be used to predict product performance. The net-average curvature (NAC) are a set of equations that take the value of HLD to predict the properties of the formulation, such as oil (and/or water) solubilization capacity, interfacial tension, phase diagrams, contact angle and others.

Surfactant Formulation Engineering using HLD and NAC will not only introduce the reader to HLD-NAC but also to the practical use of these concepts in numerous applications ranging from application in the petroleum industry, to environmental remediation, to food, cosmetic and pharmaceutical applications, and even nanotechnology. The last part of the book will look at the molecular origins of the empirical terms in HLD via the Integrated Free Energy Model (IFEM).

Edited by: Edgar Acosta (Professor Department of Chemical Engineering and Applied Chemistry University of Toronto Toronto ON Canada), Jeffrey Harwell (University of Oklahoma, OK, USA), David A. Sabatini (University of Oklahoma, USA)
Imprint: Butterworth-Heinemann Ltd
Country of Publication: United Kingdom
Dimensions: Height: 235mm, Width: 191mm,
ISBN: 9780128214817
ISBN 10: 0128214813
Pages: 335
Publication Date: 18 April 2025
Audience: Professional and scholarly , Undergraduate
Format: Paperback
Publisher's Status: Forthcoming

Edgar Acosta is a Professor in the Department of Chemical Engineering and Applied Chemistry at the University of Toronto. He received his BSc in Chemical Engineering from the Universidad del Zulia (Venezuela) in 1996, and his MSc and PhD in Chemical Engineering from the University of Oklahoma, Norman, Oklahoma, in 2000 and 2004, respectively. He has published 90 research articles in the area of colloids, complex fluids, and formulation engineering. Jeffrey Harwell works at the University of Oklahoma in OK, USA. David A Sabatini works at University of Oklahoma in USA