Research on Accelerated Environmental Aging Properties of the Fiber Reinforced Polymer Composites

The changes in quality and bending performance of laminated composite and sandwich composite by cyclic damp heat test and high-low temperature test were studied with the knowledge of hygrothermal aging and thermo-oxidative aging mechanisms of the composits. The results show that the composite has good resistance to hygrothermal aging and thermo-oxidative aging, and the sandwich composite has better performance stability than laminated composite does.