对于纤维及其复合材料而言，潮湿、遇热、光照等环境条件对其力学性能的影响明显，会导致其强度和刚度下降。本文阐述了国内外纤维及其复合材料的人工气候老化、热氧老化、光氧老化、湿热老化、臭氧老化等方面研究现状，提出了纤维及其复合材料老化的一些主要机理。在探讨了一些新研究手段的发展和取得的成果的基础上，进而展望了纤维及其复合材料老化研究存在的不足，并提出纤维及其复合材料老化研究的趋势。
Such environmental factors as hydrothermal , heat and UV have a negative effect on the mechanical properties of fiber and fiber reinforced composites ,making their strength and stiffness declined.The studies on the artificial climate aging ,thermal oxidation aging , photo oxidation aging , hydrothermal aging and ozone aging of fiber and fiber reinforced composites were summarized ,and the main aging mechanisms were introduced.In addition ,the disadvantage and trend of the studies on the aging of fiber and fiber reinforced composites were pointed out .
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