Epoxy resin samples were cyclically exposed to ultraviolet A (UVA) and a 5 wt% salt solution in a specially designed marine environment simulation system. Surface analyses indicated that UVA irradiation could accelerate the degradation of the epoxy surface and the dissolution of the degraded products, while the salt crystallization in the drying process could further accelerate the chalking and peeling of the degraded products. A possible synergistic effect between the UVA irradiation and salt crystallization was proposed to interpret the degradation, which may provide a new insight into the damage of organic polymer materials in marine environments.

中文翻译：

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模拟海洋环境中环氧树脂表面盐结晶辅助降解

环氧树脂样品在专门设计的海洋环境模拟系统中循环暴露于紫外线 A (UVA) 和 5 wt% 的盐溶液中。表面分析表明，UVA照射会加速环氧树脂表面的降解和降解产物的溶解，而干燥过程中的盐结晶会进一步加速降解产物的粉化和剥离。提出了 UVA 照射和盐结晶之间可能的协同效应来解释降解，这可能为有机聚合物材料在海洋环境中的损害提供新的见解。