Abstract
This chapter discusses radiation curing. Radiation curing of polymers involves the use of given wavelengths of light or electron beams to speed the curing mechanism, the dissociation of free radicals, from the minutes required in conventional curing to mere microseconds. Radiation curing is used for coatings on wood stocks, motor vehicles, metal and plastic containers, and for inks used for packaging, printing, and specialty items. There are several advantages and disadvantages of radiation curing. Its advantages include: rapid drying speeds; reduction or elimination of organic solvents, thus eliminating air pollution and incineration problems; significant reduction or elimination of fossil energy-heated drying ovens and incinerators; coating of heat-sensitive materials. The disadvantage is that coating equipment upstream of the curing equipment, for example, may not be compatible or may negate the time advantage of radiation curing. Radiation does not travel around bends, thus requiring complex configurations of curing equipment for unusual three-dimensional shapes.
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