Photogeneration of Reactive Species for UV Curing
Photogeneration of Reactive Species for UV Curing Cliff Roffey B.Sc., Ph.D., C. Chem., M.R.S.C., M.I.O.P. Industrial Chemist, Based in the UK UV curing systems and their formulatory components, such as photo-initiators, liquid phase monomers, oligomers, prepolymers etc. have grown remarkably over recent years, especially in the areas of graphic arts, the ink and coatings industries. In this book, Dr Roffey, author of the previously widely acclaimed book Photopolymerization of Surface Coatings reviews the developments and literature of the last 30 years and presents an overview of the state of the art in the industry today. The material is presented in such a way as to provide a good understanding of the basic theory for those new to the field of photopolymerization and to provide a reference source for practitioners wanting to keep abreast of current developments. Topics discussed include the theory of photoprocessing, photoactive compounds for the generation of reactive species, polymerization, resin systems, industrial applications and associated risks, toxicity and electromagnetic radiation, along with its sources.
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absorbed absorption acid acrylate acrylic acid adhesion amine atom benzophenone binder bond cationic chain Chem chemical Chemistry Ciba-Geigy coatings colour composition compounds containing conventional crosslinking cured films curing systems described developed diacrylate drying effect energy epoxy esters ether European Patent Application example exciplex excited exposure fibres film fluorescence formulation free radical Gp G groups hydrogen initiation intersystem crossing irradiation Japanese Unexamined Patent ketone lamp laser light liquid lithographic materials mechanism metal methacrylate methyl methyl methacrylate molecular weight molecule monomer occur offset oligomers oxide oxygen paper peroxodisulfate photochemical photochemistry photocuring photoinitiator photolysis photopolymerization photoresists photosensitive pigment plastic plate polyester polymer polymerization printing inks produce properties quantum yield radiation curing radiation-curable reaction reactive Reproduced by permission resin resistance salts screen sensitive singlet solder solvent substrate surface Technology temperature thermal transfer triplet ultraviolet unsaturated UV curing UV radiation UV-curable varnish vinyl viscosity wavelength