硅橡胶自然环境加速试验方法与自然环境试验方法等效性研究

目的研究自然环境加速试验方法与自然环境试验方法的等效性。方法针对6141硅橡胶,在高原、沙漠、湿热三个自然环境条件下,采用玻璃框、黑箱、强制通风玻璃框、单轴跟踪太阳4种已有自然环境加速试验装置,开展4种自然环境加速试验方法与户外暴露自然环境试验方法的对比试验,运用图形与秩和检验法分析不同自然环境加速试验方法与自然环境试验方法的等效性。结果在高原、沙漠、湿热三个典型环境条件下,采用6141硅橡胶对比开展的玻璃框、黑箱、强制通风玻璃框、单轴跟踪太阳4种自然环境加速试验与三个典型环境条件下的户外暴露试验中,其拉伸强度服从同一性能变化规律。结论在高原、沙漠、湿热三个典型环境条件下,开展的6141硅橡胶玻璃框、黑箱、强制通风玻璃框、单轴跟踪太阳4种自然环境加速试验与三个典型环境条件下的户外暴露试验具有等效性。

Equivalence between Natural Environmental Accelerated Test Methods and Natural Environmental Test Methods of Silicone Rubber

The work aims to study the equivalence between several natural environmental accelerated test methods and natural environmental test methods. In plateau, desert and hygrothermal atmospheric environment, the comparative tests of four natural environmental accelerated test methods and outdoor exposure natural environmental test methods were carried out to 6141 silicone rubber according to four existing natural environment accelerated test devices, such as glass frame, black box, forced ventilation glass frame and tracking solar shelf. Graphic method and rank sum test were adopted to analyze the equivalence between different natural environmental accelerated test methods and natural environmental test methods. In plateau, desert and hygrothermal atmospheric environment, the tensile strength of 6141 silicone rubber was subject to the same performance change rule in four natural environmental accelerated tests, i.e. glass frame, black box, forced ventilation glass frame and tracking solar shelf, and outdoor exposure tests under three typical environmental conditions. In plateau, desert and hygrothermal atmospheric environment, four natural environmental accelerated tests of glass frame, black box, forced ventilation glass frame and tracking solar shelf for 6164 silicone rubber are equivalent to the outdoor exposure tests under three typical environmental conditions.