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| Life Prediction of Neutral Lead Styphnate under Different High Temperature Conditions |
| Received:January 14, 2022 Revised:January 26, 2022 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2022.02.005 |
| KeyWord:lead styphnate (N-LTNR) activation energy arrhenius equation performance degradation stability |
| Author | Institution |
| NIU Lei |
State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing , China |
| DONG Hai-ping |
State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing , China |
| YE Yao-kun |
Beijing Institute of Spacecraft System Engineering, Beijing , China |
| LYU Zhi-xing |
China Ordnance Industry Explosive Engineering and Safety Technology Research Institute, Beijing , China |
| GAO Xin |
Liaoning North Huafeng Special Chemical Co.Ltd, Fushun , China |
| ZHANG Nan |
Liaoning North Huafeng Special Chemical Co.Ltd, Fushun , China |
| YANG Li-xin |
Beijing Institute of Space Electromechanics, Beijing , China |
| YAN Nan |
State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing , China |
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| Abstract: |
| In order to obtain the storage life of lead styphnate (N-LTNR) under different high temperature conditions, a storage life prediction model based on the apparent activation energy of N-LTNR and a constant temperature accelerated performance degradation test is established. With the thermal weight loss as the performance degradation parameter of N-LTNR, the thermal weight loss performance degradation test data of N-LTNR at a constant acceleration temperature are obtained by using the constant temperature acceleration test method, and the performance degradation curve of N-LTNR at this temperature is obtained by using the linear regression method. The storage life of N-LTNR at this constant acceleration temperature is determined by combining the thermal weight loss failure threshold. Based on the thermal decomposition activation energy of N-LTNR, the storage life prediction model of N-LTNR at high temperature is established. The model is used to predict the storage life of a bulk N-LTNR under different high temperature conditions. It is determined that the stability of the N-LTNR agent changed significantly at 180 ℃. Under the condition of 10% weight loss failure threshold, the life at 180 ℃ was 6.4 days. The storage life is 86 days at 150 ℃. The results show that the model can be used to predict the storage life of N-LTNR under high temperature environment, which provides a basis for the use of aerospace explosive devices. |
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