Comparing the impact safety between two HMX-based PBX with different binders
Binders play an important role in the safety of plastic bonded explosives (PBX). For the performance improvement of HMX-based explosive, the impact safety for the explosive using thermoplastic polyurethane (Estane5703) as binder, was investigated by comparing with that using fluorine rubber (F2604)....
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
KeAi Communications Co. Ltd.
2021-09-01
|
| Series: | FirePhysChem |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2667134421000328 |
| _version_ | 1828086053383176192 |
|---|---|
| author | Peng Bao Jian Li Zhiwei Han Han Ma Boliang Wang |
| author_facet | Peng Bao Jian Li Zhiwei Han Han Ma Boliang Wang |
| author_sort | Peng Bao |
| collection | DOAJ |
| description | Binders play an important role in the safety of plastic bonded explosives (PBX). For the performance improvement of HMX-based explosive, the impact safety for the explosive using thermoplastic polyurethane (Estane5703) as binder, was investigated by comparing with that using fluorine rubber (F2604). By experiments performed with a self-designed impact test device to measure critical ignition velocity, it was found that the critical ignition velocity (277.36 m/s) of Estane5703-containing explosive was 9.3% higher than that of F2604-containing explosive. By analyzing the particle size distribution and morphological characteristics of the impacted powder, it could also be inferred that Estane5703 binder had better bond behavior than F2604. Beside, combustion characteristics of impacted powder were compared in a closed combustion vessel. The results indicated that the maximum combustion pressure (Pmax) of the Estane5703-containing impacted explosive powder was 56.5% lower than that of F2604-containing impacted explosive powder. The combustion duration of the Estane5703-containing impacted powder was 24.1% longer than that of F2604-containing powder, suggesting that the combustion of the former was milder. Therefore, it can be concluded that the Estane5703-containing explosive has better impact safety than the F2604-containing explosive due to the higher bond strength of Estane5703. |
| first_indexed | 2024-04-11T04:49:45Z |
| format | Article |
| id | doaj.art-3f533f131b10497ab3945c969ec6d612 |
| institution | Directory Open Access Journal |
| issn | 2667-1344 |
| language | English |
| last_indexed | 2024-04-11T04:49:45Z |
| publishDate | 2021-09-01 |
| publisher | KeAi Communications Co. Ltd. |
| record_format | Article |
| series | FirePhysChem |
| spelling | doaj.art-3f533f131b10497ab3945c969ec6d6122022-12-27T04:40:39ZengKeAi Communications Co. Ltd.FirePhysChem2667-13442021-09-0113139145Comparing the impact safety between two HMX-based PBX with different bindersPeng Bao0Jian Li1Zhiwei Han2Han Ma3Boliang Wang4School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, PR ChinaSchool of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, PR ChinaSchool of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, PR ChinaCorresponding author.; School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, PR ChinaSchool of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, PR ChinaBinders play an important role in the safety of plastic bonded explosives (PBX). For the performance improvement of HMX-based explosive, the impact safety for the explosive using thermoplastic polyurethane (Estane5703) as binder, was investigated by comparing with that using fluorine rubber (F2604). By experiments performed with a self-designed impact test device to measure critical ignition velocity, it was found that the critical ignition velocity (277.36 m/s) of Estane5703-containing explosive was 9.3% higher than that of F2604-containing explosive. By analyzing the particle size distribution and morphological characteristics of the impacted powder, it could also be inferred that Estane5703 binder had better bond behavior than F2604. Beside, combustion characteristics of impacted powder were compared in a closed combustion vessel. The results indicated that the maximum combustion pressure (Pmax) of the Estane5703-containing impacted explosive powder was 56.5% lower than that of F2604-containing impacted explosive powder. The combustion duration of the Estane5703-containing impacted powder was 24.1% longer than that of F2604-containing powder, suggesting that the combustion of the former was milder. Therefore, it can be concluded that the Estane5703-containing explosive has better impact safety than the F2604-containing explosive due to the higher bond strength of Estane5703.http://www.sciencedirect.com/science/article/pii/S2667134421000328BinderEstane5703Critical ignition velocityImpact safetyPBX |
| spellingShingle | Peng Bao Jian Li Zhiwei Han Han Ma Boliang Wang Comparing the impact safety between two HMX-based PBX with different binders FirePhysChem Binder Estane5703 Critical ignition velocity Impact safety PBX |
| title | Comparing the impact safety between two HMX-based PBX with different binders |
| title_full | Comparing the impact safety between two HMX-based PBX with different binders |
| title_fullStr | Comparing the impact safety between two HMX-based PBX with different binders |
| title_full_unstemmed | Comparing the impact safety between two HMX-based PBX with different binders |
| title_short | Comparing the impact safety between two HMX-based PBX with different binders |
| title_sort | comparing the impact safety between two hmx based pbx with different binders |
| topic | Binder Estane5703 Critical ignition velocity Impact safety PBX |
| url | http://www.sciencedirect.com/science/article/pii/S2667134421000328 |
| work_keys_str_mv | AT pengbao comparingtheimpactsafetybetweentwohmxbasedpbxwithdifferentbinders AT jianli comparingtheimpactsafetybetweentwohmxbasedpbxwithdifferentbinders AT zhiweihan comparingtheimpactsafetybetweentwohmxbasedpbxwithdifferentbinders AT hanma comparingtheimpactsafetybetweentwohmxbasedpbxwithdifferentbinders AT boliangwang comparingtheimpactsafetybetweentwohmxbasedpbxwithdifferentbinders |