Polyurethanes : Coatings, Adhesives and Sealants

Description

The chemistry of polyurethane coatings is of great significance in many applications worldwide. Moreover, their development potential has yet to be exhausted by any means. New applications are being identified and the product range will be further development. The book provides a comprehensive overview of the chemistry and the various possible application fields of polyurethanes. It starts by illustrating the principles of polyurethane chemistry, enabling the reader to understand the current significance of many applications and special developments. Newcomers learn about the key concepts of polyurethane chemistry and the main application technologies, while experienced specialists will value the insights on current trends and changes. Content: Intro Titlepage Copyright Contents Foreword 1. Introduction 1.1 Historical aspects 1.2 Definition of scope 1.3 References 2. Economic aspects and market analysis 2.1 Introduction and definitions 2.2 Coatings 2.2.1 Fields of application 2.2.2 Chemistries and regions 2.2.3 Market forecasts 2.3 Adhesives and sealants 2.3.1 Fields of application 2.3.2 Chemistries and regions 2.3.3 Market forecasts 3. Chemical principles 3.1 Diisocyanates 3.2 Isocyanate reactions 3.3 Polyisocyanates 3.3.1 Derivatization 3.3.2 Monomer separation 3.4 Prepolymers 3.4.1 Water content of the raw materials3.4.2 Stability of NCO prepolymers 3.5 Thermally activated polyurethane crosslinkers 3.6 Hydrophilically-modified polyisocyanates 3.7 Co-reactants for polyisocyanates 3.7.1 Solvent-borne polyacrylate polyols 3.7.2 Polyester polyols 3.7.3 Polyether polyols 3.7.4 Polycarbonate polyols 3.7.5 Polycaprolactone polyols 3.7.6 Solvent-based polyurethane polyols 3.7.7 Polyamines 3.8 Aqueous dispersions 3.8.1 Polyurethane dispersions 3.8.2 Polyacrylate dispersions 3.8.3 Hybrid polyurethane/polyacrylate dispersions 3.8.4 Polyester polyol dispersions 3.9 Urethane acrylates3.9.1 Chemistry of urethane acrylates 4. Coating technology principles 4.1 Formulation basics of polyurethane coatings 4.1.1 Basics 4.1.2 Selection of polyurethane raw materials 4.2 Aspects of one- and two-component coating technology 4.2.1 Physical drying 4.2.2 Chemical curing 4.2.3 Air-drying coatings 4.2.4 Dual-cure technology 4.2.5 Silyl-modified polyurethanes 4.2.6 Application 4.2.7 Catalysis in polyurethane coatings 4.3 Solvent-borne and solvent-free systems 4.3.1 Classification 4.3.2 Applications 4.3.3 Quality characteristics of two component polyurethane coatings4.4 Water-borne systems 4.4.1 Water-borne one-component polyurethane systems 4.4.2 Water-borne two-component polyurethane systems 4.5 Process technology 4.5.1 Processing of one-component polyurethane coatings 4.5.2 Processing of two-component polyurethane coatings 4.6 Crosslinking technologies based on the polyaddition reactions of polyisocyanates 4.7 Powder coatings 4.7.1 Overview of powder coating technology 4.7.2 Application methods 4.7.3 Application efficiency 4.7.4 Uses 4.7.5 Polyurethane powder coatings 4.7.6 Properties4.7.7 Uses of polyurethane powder coatings 4.8 DirectCoatin"/DirectSkinning 4.8.1 Outlook 4.9 Digital printing as disruptive application technology for coatings and adhesives 4.10 Radiation curing 4.10.1 Technology and coating formulation 4.10.2 Binders for radiation curing 4.10.3 Urethane acrylates for UV (mono-cure) and electron beam curing applications 4.10.4 Water-borne UV-curing polyurethane coatings 4.10.5 Urethane acrylates for UV powder applications 4.10.6 Dual-cure technology 4.10.7 Outlook 5. Polyurethane Coatings 5.1 Wood coating