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简述了聚丙烯的老化机制,着重介绍了在光氧作用下的老化及添加抗老化剂的措施,分别从添加紫外线吸收剂、氢过氧化物分解剂、激发态猝灭剂和自由基捕获剂、光屏蔽剂六种助剂出发,研究其作用机制、性能优势并综述当前的研究进展。研究了在水和金属离子以及力的作用等不同环境因素影响下聚丙烯的老化过程,最后简要介绍了目前的复合抗老化剂。
The aging mechanism of polypropylene was briefly introduced. The aging and additives of anti-aging agent under the action of photo-oxygen were emphatically introduced. The effects of adding UV absorber, hydroperoxide decomposer, excitatory quencher and free radical catching Agent, light screening agent starting six additives to study its mechanism of action, performance advantages and review of current research progress. The aging process of polypropylene under different environmental factors such as water, metal ions and the action of force was studied. Finally, the current composite anti-aging agent was briefly introduced.