用FT-IR研究了紫外光老化聚丙烯(PP)/纳米CaCO<,3>和相容剂改性PP/纳米CaCO<,3>复合材料的微观结构变化,结果表明,纳米CaCO<,3>和相容剂加入加快了PP紫外光氧化降解,但对PP光氧化降解机理无影响.纳米CaCO<,3>促进PP光氧化降解作用较相客荆的大.纳米CaCO<,3>加快PP紫外光氧化降解主要归结于纳米CaCO<,3>加入形成大量界面的影响.而相容剂促进PP光氧化降解,主要归结于相容剂对光稳定荆的吸附作用,相容剂极性越大,吸附作用越强.
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