UV Coatings book cover

UV Coatings

Basics, Recent Developments and New Applications

Since UV curing (light induced polymerisation of multifunctional oligomers) is a very ecoefficient and energy saving curing method, the growth rates of UV curable coatings are in the range of 10% per year. The typical UV coatings are solvent free (100% solids), thus helping the industry and the environment to reduce significantly VOC (volatile organic compounds). Recently, the automotive industry has discovered that UV cured coatings are very scratch resistant, which stimulated very extensive work into the development of UV coatings for automotive applications. Since UV curing is very universal, also other systems besides the 100% solid (typical) UV coatings are developed, like waterbased UV- , UV powder and Dual cure (UV and thermal) systems.UV Coatings contains an overview of the technology, the curing process including the equipment necessary, the raw materials (resins, diluents, photoinitiators) used, the advantages and drawbacks of this fast emerging technology, as well as proposed technical solutions to tackle the disadvantages. Structure-property relationships will be given, especially regarding the mechanical properties of coatings as well as scratch resistance, mainly dealing with automotive performance criteria. The main part of the book will deal with new developments, like water-based UV coatings, UV powder coatings and dual cure systems, cured by UV and thermal energy, which have been developed to cure the coating on three dimensional substrates in shadow areas. The main applications of UV Coatings will be described, starting with the classical ones on temperature sensitive substrates, like wood, paper and plastics, where the UV curable coatings are already well established.

Audience
For chemical engineers, material scientists, polymer scientists, automotive industry, consultants.

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Published: November 2006

Imprint: Elsevier

ISBN: 978-0-444-52979-4

Contents

  • Chapter 1 Introduction to Coatings Technology1.1 Coating markets and market prospects
    1.2 UV coating markets and market prospects
    1.3 UV technology and applications
    1.4 Advantages and drawbacks of UV coatings
    1.5 Eco-efficiency
    1.6 Driving forces of UV technology
    1.7 Current R&D topics and trends in UV
    technology
    1.8 Perspectives Chapter 2 The UV Curing Process2.1 Application (property requirements) 2.2 Chemistry (photochemical process)
    2.3 Equipment (for UV curing process) suppliers Chapter 3 Network Formation and Characterization3.1 Film formation
    3.2 Network formation
    3.3 Monitoring film formation and curing
    3.4 Network characterization Chapter 4 Raw Materials4.1 Radical polymerization systems
    4.2 Cationically-curable systems
    4.3 Thiol-ENEsystems
    4.4 Coating additives
    4.5 Characterization of raw materials
    4.6 Selection of raw materials
    4.7 Raw material suppliers Chapter 5 Formulations5.1 Formulations for wood coatings
    5.2 Formulations for graphic inks
    5.3 Specialty formulations (for glass, polycarbonate, metal)
    5.4 Formulation screening for new applications
    5.5 Increasing efficiency in formulation screening: High-throughput screening (HTS) Chapter 6 Structure–Property Relationships6.1 Effect of crosslinking on mechanical properties
    6.2 Effect of crosslinking on coating properties Chapter 7 Tackling the Drawbacks of UV Systems7.1 Oxygen inhibition methods
    7.2 Shadow areas
    7.3 Initial photoyellowing Chapter 8 Classical Applications8.1 On wooden surfaces
    8.2 In graphic arts industry Chapter 9 Recent Developments9.1 Chemistry related developments
    9.2 Process related developments Chapter 10 New Applications 10.1 Automotive applications
    10.2 Industrial applications
    10.3 Film coating instead of painting: An innovative concept Chapter 11 Health, Safety and Environment 11.1 Safe handling of acrylates (labelling guide)
    11.2 Principles for safe use of UV coatings and inks: UV protocol
    11.3 UVITECH (Risk assessment of UV curing in printing industry)
    11.4 Reduction of emissions (VOC regulation)
    11.5 Registration, evaluation and authorization of chemicals (REACH)
    11.6 UV coated materials for food contact
    11.7 Concept of best available technique (BAT)

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