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| Accelerated Aging Test and Life Prediction of a Certain Type of Rubber Seals |
| Received:April 26, 2024 Revised:July 10, 2024 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2024.10.011 |
| KeyWord:silicone rubber O-ring storage life aging test Arrhenius model damp-heat aging evaluation method |
| Author | Institution |
| CUI Xinye |
Naval University of Engineering, Wuhan , China |
| ZHOU Yuan |
Naval University of Engineering, Wuhan , China |
| CHANG Jian |
Naval University of Engineering, Wuhan , China |
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| Abstract: |
| The work aims to investigate the aging law and storage life of a certain type of silicone rubber O-ring by carrying out the high-temperature aging test and the humidity-heat aging test and innovatively compare and explore the two tests to intuitively analyze the effects of different stresses on the aging behavior and the applicability of different models. The single temperature stress and double humidity stress were used as the main aging factors to design the corresponding accelerated aging tests, and the permanent compression deformation rate was used as the degradation data to obtain the degradation model of rubber properties under different stresses, and the two types of aging tests were combined with the Arrhenius model and the hygrothermal model respectively to predict the storage life of the corresponding seals. The effects of single stress and double stress on aging process were further investigated and the applicability of different theoretical models was evaluated. The degradation model of rubber properties under various stresses was obtained and the corresponding storage life of seals was predicted. The effects of temperature, humidity and their comprehensive effects on aging and storage life were initially explored, and the accuracy and applicability of different theoretical models in practical application were analyzed. Through two types of aging tests, the storage life the rubber is estimated to be 13.5 and 13.9 years, and it is concluded that temperature and humidity have great effect on rubber aging, and the comprehensive effect of them is nonlinear. At the same time, it is also analyzed that the model considering humidity and heat factors is more suitable for predicting the aging life of rubber seals. |
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