总结了高分子材料老化研究中普遍存在的问题和面临的困难.以聚合物复合材料为对象,分析了其主要组成-无机填料对聚合物基体老化行为及其机理的影响.这种影响主要体现在:1)填料本身及其表面化学特性对基体光化学反应及动力学的影响;2)对基体形态结构(主要是晶型、结晶度和晶粒尺寸)、继而对氧气等扩散的影响;3)加剧体系的不均一性.聚合物复合材料的老化是多种因素影响、正反两方面效应的加和,因此给其老化机理研究带来了很多困难,也对该领域的研究提出了很多挑战.
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