Contents. Part 1 Introduction Part 2 Chemical Structures of Surfactants Prologue... 2
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1 i Contents Publishing of the Revised Edition... vii Preface of Original Japanese Edition... ix Part 1 Introduction... 1 Prologue... 2 Chapter 1 What are Surfactants?... 3 Chapter 2 Fundamental Properties and Functions of Surfactants.. 14 (1) Wetting Effect and Penetrating Effect (2) Emulsifying Effect and Dispersing Effect (3) Foaming Effect (4) Detergency Part 2 Chemical Structures of Surfactants Chapter 1 Classification of Surfactants Chapter 2 Nonionic Surfactants Polyethyleneglycol Type Nonionic Surfactants (1) Alkylphenol Ethylene Oxide Adducts and Higher Alcohol Ethylene Oxide Adducts (2) Polyoxyethylene Fatty Acid Esters (Fatty Acid Ethylene Oxide Adducts or Polyethyleneglycol Fatty Acid Esters) (3) Higher Alkylamine Ethylene Oxide Adducts and Fatty Acid Amide Ethylene Oxide Adducts (Polyoxyethylenealkylamines and Polyoxyethylene Fatty Acid Amides) (4) Polypropyleneglycol Ethylene Oxide Adducts (Pluronic Type Nonionic Surfactants or Polyoxyethylene Polyoxypropylene Glycols) Polyhydric Alcohol Type Nonionic Surfactants (1) Glycerin Fatty Acid Esters and Pentaerythritol Fatty Acid Esters (2) Sorbitol Fatty Acid Esters and Sorbitan Fatty Acid Esters (3) Sucrose Fatty Acid Esters (4) Alkyl Polyglucosides (5) Fatty Acid Alkanolamides Summary of Nonionic Surfactants... 73
2 ii Chapter 3 Anionic Surfactants Carboxylates (1) Soaps (2) Polyoxyethylene-Alkyl-Ether Carboxylates (3) Alkyl-Glycol-Ether Carboxylates Salts of Sulfonic Acids (Sulfonates) (1) Alkylbenzenesulfonates (2) Oil-Soluble Alkylbenzenesulfonates (3) a-olefinsulfonates (4) Alkanoylmethyltaurate (Igepon T Type) Products (5) Dialkyl Sulfosuccinate (Aerosol OT Type) Products Salts of Carboxylic Acids/Salts of Sulfonic Acids (Carboxylates/Sulfonates) Salts of Sulfuric Esters (Sulfates) (1) Higher Alcohol Sulfates (Higher Alkyl Sulfates) (2) Higher Alcohol Ethylene Oxide Adduct Sulfates (Higher Alkyl-Ether Sulfates) (3) Sulfated Oils, Sulfated Fatty Acid Esters and Sulfated Fatty Acids (4) Sulfated Olefins Salts of Phosphoric Esters (Phosphates) (1) Higher Alcohol Phosphates (Salts of Higher Alkyl Phosphates) (2) Salts of Higher Alcohol Ethylene Oxide Adduct Phosphates (Salts of Higher Alkyl-Ether Phosphates) (3) Salts of Dithiophosphates (Dithiophosphates) Summary of Anionic Surfactants Chapter 4 Cationic Surfactants Amine Salt Type Cationic Surfactants (1) Amine Salt Type Cationic Sufactants Derived from Higher Alkylamines (2) Amine Salt Type Cationic Surfactants Derived from Lower Alkylamines Quaternary Ammonium Salt Type Cationic Surfactants (1) Quaternary Ammonium Salt Type Cationic Surfactants Derived from Higher Alkylamines (2) Quaternary Ammonium Salt Type Cationic Surfactants Derived from Lower Alkylamines Summary of Cationic Surfactants Chapter 5 Amphoteric Surfactants
3 iii 1. Amino Acid Type Amphoteric Surfactants Betaine Type Amphoteric Surfactants Summary of Amphoteric Surfactants Chapter 6 Relationship Between Chemical Structures of Surfactants and Their Physical Properties (1) Relationship Between Hydrophilic and Hydrophobic Properties of Surfactants (HLB) (2) Relationship Between Properties of Surfactants and Type of Hydrophilic Groups (3) Effect of Lipophilic (Hydrophobic) Properties of Surfactants on Their Essential Characteristics (4) Relationship Between Properties of Surfactants and Type of Hydrophobic Groups (5) Relationship Between Properties of Surfactants and Shape or Molecular Weight (6) Summary of Relationship Between Chemical Structures and Property Part 3 Fundamental Properties of Surfactants and Their Applications Chapter 1 Wetting Agents and Penetrating Agents (1) Nature of Solution and Type of Penetrating Agent (2) Penetrating Agents for Neutral Solutions (General Purpose Penetrating Agents) (3) Specialty Penetrating Agents (4) Rewetting Agents Chapter 2 Foaming Agents and Defoaming Agents (1) Foaming Agents and Foam Stabilizers (2) Defoaming Agents Chapter 3 Emulsifying, Dispersing and Solubilizing Agents (1) Methods of Selecting Emulsifying and Dispersing Agents (2) Methods of Emulsification (3) Applications of Emulsifying Agents, Dispersing Agents, and Solubilizing Agents Chapter 4 Detergents (1) Detergency of Surfactants (2) Method for Measuring Detergency (3) Types of Detergents and Their Properties (4) Effects of Builders and Other Additives (5) Adsorption of Detergents on Textile Fibers
4 iv (6) Applications of Detergents Part 4 Secondary Properties of Surfactants and Their Applications Chapter 1 Lubricants for Fibers (1) Lubricating Effect of Surfactants on Fibers (2) Friction Coefficient of Fibers (3) Uses of Lubricants for Fibers (4) Relationship Between Chemical Structures of Surfactants and Their Lubricating Effect on Fibers (5) Important Surfactants Used as Lubricants for Fibers (6) Summary of Lubricants for Fibers Chapter 2 Antistatic Agents (1) Buildup of Static Electricity and Necessity of Its Elimination (2) Principle of Antistatic Agents (Antistatic Effect of Surfactants) and Methods for Evaluating Antistatic Properties (3) Antistatic Agents for Textile Fibers (4) Antistatic Agents for Plastics (5) High-Molecular Antistatic Agents Chapter 3 Lubricating Agents for Metals (1) Types of Lubricating Oils and Additives (2) Examples of Lubricating Oils Chapter 4 Rust Preventive Agents (1) Surfactants Used as Rust Preventive Agents (2) Examples of Applications of Rust Preventive Agents Chapter 5 Leveling Agents and Fixing Agents for Dyeing (1) Leveling Agents (2) Dye-Fixing Agents Chapter 6 Hydrophobifying Agents (1) Water-Repellent Agents (2) Sizing Agents for Paper (3) Flotation Reagents (4) Other Hydrophobifying Agents Chapter 7 Antibacterial Agents Chapter 8 Flocculants (1) Flocculants Used in Manufacturing Processes of Various Industries (2) Flocculants Used for Industrial Waste Water Treatment (3) Flocculants Used for Sewage Treatment
5 v (4) Drainage and Retention Improvers for Papermaking Part 5 Safety of Surfactants and Their Influences on Environment Chapter 1 Influences of Surfactants on Humans and Animals (1) Oral Toxicity (2) Eye Irritation (3) Skin Irritation (4) Hemolytic Effect (5) Acute Toxicity to Fish (6) Endocrine Disruption (Environmental Hormone Effect) Chapter 2 Environmental Impact of Surfactants and Its Control (1) Oxygen Demand of Surfactants in Waste Water (2) Biodegradability of Surfactants (3) Application of Surfactants for Pollution Control Epilogue Index
6 vii Publishing of the Revised Edition This is the English translation of the newly revised edition of Introduction to Surfactants (Kaimen Kasseizai Nyumon in Japanese), which was published in March Intended as a systematic introductory guide to surfactants, covering everything from basic principles to practical applications, the Japanese version has always been well received for their great clarity by those embarking on the study of surfactants and by those concerned with their actual use. The original Japanese version has been revised and reprinted repeatedly ever since it was first published in November With the retirement of the author, Dr. Takehiko Fujimoto (former chairman of the board of Sanyo Chemical Industries, ltd.), in June 2004, the book was expected to go out of print. However, due to the enthusiasm of our readers and their wishes for continued publication, it was decided to enlist the support of our Research Division and Public Relations Dept., and to carry out revisions for a new edition. The main thrust of the newly revised Japanese version, is the shift from referencing alkylphenol EO (ethylene oxide) adducts to replacement products. Since the earlier revised edition of the original volume that was published in 1981, the field of surfactants has seen remarkable technological advances, and the phenomenon of endocrine disruption has come to be recognized as a major issue. Important nonionic surfactant raw materials such as alkylphenol EO adducts are derived from nonylphenol (NP) and octylphenol (OP) which manifest estrogen-like effects in the bodies of animals. Although alkylphenol EO adduct itself is not an endocrine disruptor, upon biodegrading in the environment, NP and OP are produced. In order to address this problem, replacement product development programs and voluntary bans on water-polluting applications have been undertaken by the concerned industries. As a result, NP/OP environmental contamination has now been ameliorated to the extent that virtually no risk remains. As alkylphenol EO adducts have excellent functionality and have therefore been used widely in surfactants, these substances were discussed throughout the original version of this book, and numerous references were made to their diverse applications. In light of these developments, it was decided that the contents of the original edition no longer reflected current world conditions, and a revised Japanese version was prepared in While the main thrust of this revision was this shift from also alkylphenol EO adducts to replacement products, the following three guidelines were implemented: 1. to update the classification of surfactants to be in line with the standards accepted by the Japan Surfactant Industry Association (JSIA); 2. to replace old data regarding safety and other concerns with data released by the JSIA ; and 3. to reassess
7 viii the appropriateness of the terminology in light of current conditions. In response to requests from English language readers, an English translation of Introduction to Surface Active Agents (Surfactants) was first published in When the latest Japanese revisions were prepared in 2007, it was decided that the changes in the Japanese version should also be reflected in a new English version. As the development of surfactants that substitute other substances for alkylphenol EO adducts is still ongoing, it is inevitable that this revised version will become outdated. Even so, it is my earnest wish that the reader will find this volume of use in understanding surfactants and the circumstances of their production and use. I would like to express my deep gratitude to Dr. Tetsuo Morino (a veteran of our Public Relations Dept.), and to everyone in our Research Division and Public Relations Dept. for their cooperation in realizing the revision of this book. March 2010 Tetsuo Kakehi Supervisor for the New Edition Adviser, Sanyo Chemical Industries, Ltd.
8 ix Preface of Original Japanese Edition The present book is a complete rewrite of the book entitled Introduction to Surfactants (Kaimen Kasseizai Nyumon in Japanese) written by Koich Isoda and Dr. Takehiko Fujimoto, and published in November In response to favorable public reception, the original book has run into its 6th edition since first published in The book was revised by Dr. Fujimoto several times, but such partial revisions were not sufficient to keep up with the remarkable progress of technology and society in those years. In 1973, the book was rewritten completely with the title changed to Introduction to Surfactants, New Edition, and it was supplemented and revised in 1976 and again in In 1963, the Japanese economy was in the early stage of high growth, and what are called the golden sixties were just about to bloom. The year of 1973, when the new rewritten edition was published, saw the real beginning of the seventies, the transition period when social concern moved from quantity to quality + quality. In the 1980s, with the transition period of the 1970s over, demands are being made on industries that they have their own resources of creativity. The importance of surfactants in a broad sense is increasing more and more these days in response to the industrial tendency to place emphasis on brainintensive operations rather than mass production, and, in the case of the chemical industry, on specialty chemicals rather than heavy chemicals. Therefore, even in the case of this kind of book of introduction, it is really difficult for a single author to cover the full-grown technical area of surfactants as it is today. In spite of the skillful support of the research chemists of our company in each specific field, I cannot help conceding that the present book is far from being adequate. I hope that, though the book is not adequate enough, it will serve you as a springboard for jumping into the more concrete realm of surfactants, namely, the realm of their practical applications. I believe that actual practice should be our excellent teacher, a far better one than any book can be. It is an unanticipated pleasure for me to be able to revise the book at the beginning of the 1980s. I wish to take this opportunity of expressing my sincere thanks to the staff of Research Division and Public Relations Dept. of Sanyo Chemical Industries, Ltd. for their invaluable assistance. July 1981 Dr. Takehiko Fujimoto
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