Study on the Relationship Between Migration of Desensitizer and Combustion Performance of a Double-Base Propellant
- Resource Type
- Article
- Authors
- Liqian Song; Qing Pan; Hua Qian; Dabin Liu; Lingjun Zhang
- Source
- International Journal of Aeronautical and Space Sciences, 24(1), pp.121-130 Feb, 2023
- Subject
- 항공우주공학
- Language
- English
- ISSN
- 2093-2480
2093-274X
To study the relationship between the migration of desensitizer and combustion performance of a double-base propellant, the concentration distribution of desensitizer in aged samples was measured by micro-infrared spectroscopy, and the diffusion model was established. The combustion performance parameters were measured and calculated by closed bomb test. The results showed that the change of combustion performance of a double-base propellant was mainly affected by the concentration distribution gradient of desensitizer, and there was a high correlation between the change of combustion performance of the propellant and the diffusion law of desensitizer: the initial gas generation intensity was negatively correlated with the concentration of surface desensitizer; the concentration gradient of desensitizer was positively correlated with progressive combustion; the combustion incremental factor was positively correlated with the diffusion coefficient. The distribution model of combustion increment and insensitive agent concentration was established.