Tadros Emulsion Formation and Stability

1. Auflage 2013
ISBN: 978-3-527-64796-5
Verlag: Wiley-VCH
Format: EPUB
Kopierschutz: Adobe DRM (»Systemvoraussetzungen)

E-Book, Englisch, 272 Seiten, E-Book

The importance of emulsification techniques, their use in the production of nanoparticles for biomedical applications as well as application of rheological techniques for studying the interaction between the emulsion droplets is gathered in this reference work. Written by some of the top scientists within their respective fields, this book covers such topics as emulsions, nano-emulsions, nano-dispersions and novel techniques for their investigation. It also considers the fundamental approach in areas such as controlled release, drug delivery and various applications of nanotechnology.

 

From the contents:

* Emulsion Formation, Stability, and Rheology

* Emulsion Formation in Membrane and Microfl uidic Devices

* Adsorption Characteristics of Ionic Surfactants at Water/Hexane Interface Obtained by PAT and ODBA

* Measurement Techniques Applicable to the Investigation of Emulsion Formation during Processing

* Emulsification in Rotor - Stator Mixers

* Formulation, Characterization, and Property Control of Paraffin Emulsions

* Polymeric O/W Nanoemulsions Obtained by the Phase Inversion Composition (PIC) Method for Biomedical Nanoparticle Preparation

* Rheology and Stability of Sterically Stabilized Emulsions

 

Aimed at surface, physical, and polymer chemists, materials scientists, and chemical engineers.

Autoren/Hrsg.

Tadros, Tharwat F.

Inhaltsverzeichnis

PREFACE

 

EMULSION FORMATION, STABILITY, AND RHEOLOGY

Introduction

Industrial Applications of Emulsions

Physical Chemistry of Emulsion Systems

Thermodynamics of Emulsion Formation and Breakdown

Interaction Energies (Forces) between Emulsion Droplets and Their Combinations

Adsorption of Surfactants at the Liquid/Liquid Interface

Selection of Emulsifiers

Creaming or Sedimentation of Emulsions

Flocculation of Emulsions

Ostwald Ripening

Emulsion Coalescence

Rheology of Emulsions

Bulk Rheology of Emulsions

Viscoelastic Properties of Concentrated Emulsions

 

EMULSION FORMATION IN MEMBRANE AND MICROFLUIDIC DEVICES

Introduction

Membrane Emulsification (ME)

Microfluidic Junctions and Flow-Focusing Devices

Microfluidic Devices with Parallel Microchannel Arrays

Glass Capillary Microfluidic Devices

Application of Droplets Formed in Membrane and Microfluidic Devices

Conclusions

 

ADSORPTION CHARACTERISTICS OF IONIC SURFACTANTS AT WATER/HEXANE INTERFACE OBTAINED BY PAT AND ODBA

Introduction

Experimental Tools

Theory

Results

Summary

 

MEASUREMENT TECHNIQUES APPLICABLE TO THE INVESTIGATION OF EMULSION FORMATION DURING PROCESSING

Introduction

Online Droplet Size Measurement Techniques

Techniques Investigating Droplet Coalescence

Concluding Remarks

 

EMULSIFICATION IN ROTOR?STATOR MIXERS

Introduction

Classification and Applications of Rotor?Stator Mixers

Engineering Description of Emulsification/Dispersion Processes

Advanced Analysis of Emulsification/Dispersion Processes in Rotor?Stator Mixers

Conclusion

 

FORMULATION, CHARACTERIZATION, AND PROPERTY CONTROL OF PARAFFIN EMULSIONS

Introduction

Surfactant Systems Used in Formulation of Paraffin Emulsions

Formation and Characterization of Paraffin Emulsions

Control of Particle Size

Stability of Paraffin Emulsions

Conclusions

 

POLYMERIC O/W NANO-EMULSIONS OBTAINED BY THE PHASE INVERSION COMPOSITION (PIC) METHOD FOR BIOMEDICAL NANOPARTICLE PREPARATION

Introduction

Phase Inversion Emulsification Methods

Aspects on the Choice of the Components

Ethylcellulose Nano-Emulsions for Nanoparticle Preparation

Final Remarks

 

RHEOLOGY AND STABILITY OF STERICALLY STABILIZED EMULSIONS

Introduction

General Classification of Polymeric Surfactants

Interaction between Droplets Containing Adsorbed Polymeric Surfactant Layers: Steric Stabilization

Emulsions Stabilized by Polymeric Surfactants

Principles of Rheological Techniques

Rheology of Oil-in-Water (O/W) Emulsions Stabilized with Poly(Vinyl Alcohol)

 

INDEX

PREFACE

 

EMULSION FORMATION, STABILITY, AND RHEOLOGY

Introduction

Industrial Applications of Emulsions

Physical Chemistry of Emulsion Systems

Thermodynamics of Emulsion Formation and Breakdown

Interaction Energies (Forces) between Emulsion Droplets and Their Combinations

Adsorption of Surfactants at the Liquid/Liquid Interface

Selection of Emulsifiers

Creaming or Sedimentation of Emulsions

Flocculation of Emulsions

Ostwald Ripening

Emulsion Coalescence

Rheology of Emulsions

Bulk Rheology of Emulsions

Viscoelastic Properties of Concentrated Emulsions

 

EMULSION FORMATION IN MEMBRANE AND MICROFLUIDIC DEVICES

Introduction

Membrane Emulsification (ME)

Microfluidic Junctions and Flow-Focusing Devices

Microfluidic Devices with Parallel Microchannel Arrays

Glass Capillary Microfluidic Devices

Application of Droplets Formed in Membrane and Microfluidic Devices

Conclusions

 

ADSORPTION CHARACTERISTICS OF IONIC SURFACTANTS AT WATER/HEXANE INTERFACE OBTAINED BY PAT AND ODBA

Introduction

Experimental Tools

Theory

Results

Summary

 

MEASUREMENT TECHNIQUES APPLICABLE TO THE INVESTIGATION OF EMULSION FORMATION DURING PROCESSING

Introduction

Online Droplet Size Measurement Techniques

Techniques Investigating Droplet Coalescence

Concluding Remarks

 

EMULSIFICATION IN ROTOR - STATOR MIXERS

Introduction

Classification and Applications of Rotor - Stator Mixers

Engineering Description of Emulsification/Dispersion Processes

Advanced Analysis of Emulsification/Dispersion Processes in Rotor - Stator Mixers

Conclusion

 

FORMULATION, CHARACTERIZATION, AND PROPERTY CONTROL OF PARAFFIN EMULSIONS

Introduction

Surfactant Systems Used in Formulation of Paraffin Emulsions

Formation and Characterization of Paraffin Emulsions

Control of Particle Size

Stability of Paraffin Emulsions

Conclusions

 

POLYMERIC O/W NANO-EMULSIONS OBTAINED BY THE PHASE INVERSION COMPOSITION (PIC) METHOD FOR BIOMEDICAL NANOPARTICLE PREPARATION

Introduction

Phase Inversion Emulsification Methods

Aspects on the Choice of the Components

Ethylcellulose Nano-Emulsions for Nanoparticle Preparation

Final Remarks

 

RHEOLOGY AND STABILITY OF STERICALLY STABILIZED EMULSIONS

Introduction

General Classification of Polymeric Surfactants

Interaction between Droplets Containing Adsorbed Polymeric Surfactant Layers: Steric Stabilization

Emulsions Stabilized by Polymeric Surfactants

Principles of Rheological Techniques

Rheology of Oil-in-Water (O/W) Emulsions Stabilized with Poly(Vinyl Alcohol)

 

INDEX

Über Autor(innen)

After finishing his PhD at Alexandria University, Tharwat Tadros was appointed lecturer in Physical Chemistry (1962-1966) at the same University. Between 1966 and 1969, he spent a sabbatical at the Agricultural University of Wageningen and T.N.O in Delft, the Netherlands. Thereafter he worked at I.C.I. and ZENECA until 1994, where he researched various fields of surfactants, emulsions, suspensions,

microemulsions, wetting spreading and adhesion, and rheology. During that period he was also appointed visiting professor at Imperial College London, Bristol University and Reading University. In 1992, he was elected President of the International Association of Colloid and Interface Science. Since leaving ZENECA, Dr. Tadros has worked as a consultant for various industries and also given several courses in his

specialized field. He is the recipient of two medals from the Royal Society of Chemistry in the UK, and has more than 250 scientific papers to his name.