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The ultraviolet rays found in sunlight and lighting cause photochemical reactions when they
make contact with plastic. This has a dramatic effect on such essential physical properties
of plastic as color and strength, causing degradation.
Ultraviolet absorbers are one of the additives used to prevent plastic characteristics
from deteriorating in environments where ultraviolet light is present.
Ultraviolet absorbers protect materials by converting absorbed ultraviolet rays into low-impact heat and energy through chemical reactions. Ultraviolet absorbers are mainly used to curtail photodegradation in plastics by playing a key role in suppressing the generation of radicals that cause plastic to degrade.