用自制的绢云母质无机紫外屏蔽剂改性聚丙烯（ PP），对光老化后的PP 复合材料进行力学性能测试。
The polypropylene(PP) was modified by self-made sericite-based inorganic UV-screen agent, and the mechanical properties of the PP composites after light aging were tested.
描述了有关专业术语，紫外线吸收和屏蔽剂的性能、应用范围、安全性问题、在法规上的禁忌和配方使用，展望了防晒剂未来的发展趋势。
Some professional terms, the function, usage, safety concerns, legal prohibition, formulation tips are described. Meanwhile, the future trends of UV absorbers and blocks are also included.
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