紫外线吸收剂是一种光稳定剂，能吸收阳光及荧光光源中的紫外线部分，而本身又不发生变化。
含该紫外光吸收剂的聚烯烃制品，在户外使用时，其综合性能的长期保持率有极大的提高。
Long-term retaining rate of the comprehensive property of the polyolefin articles containing the ultraviolet absorber during outdoor use is greatly enhanced.
新型紫外光吸收剂的主要成分包括：水杨酸苯酯类及其衍生物、三嗪类或邻羟基苯丙三唑类化合物。
The novel ultraviolet absorber mainly comprises the ingredients of: phenyl salicylates and derivatives thereof, and triazine or ortho-hydroxyazimidobenzene compounds.
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