Morphology and properties of CL-20/MTNP cocrystal prepared via facile spray drying
Cocrystal of 2,4,6,8,10,12-hexaazaisowurtzitane/1-methyl-3,4,5-trinitropyrazole (CL-20/MTNP) in a 1:1 molar ratio is a promising energetic material, since it combines the superior detonation performance of CL-20 and good mechanical sensitivity of MTNP. In order to promote its progress to practical u...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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KeAi Communications Co. Ltd.
2023-06-01
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| Series: | FirePhysChem |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2667134422000517 |
| _version_ | 1797809093487886336 |
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| author | Xueyan Zhao Zongwei Yang Shen Qiao Junyu Piao Hongzhen Li |
| author_facet | Xueyan Zhao Zongwei Yang Shen Qiao Junyu Piao Hongzhen Li |
| author_sort | Xueyan Zhao |
| collection | DOAJ |
| description | Cocrystal of 2,4,6,8,10,12-hexaazaisowurtzitane/1-methyl-3,4,5-trinitropyrazole (CL-20/MTNP) in a 1:1 molar ratio is a promising energetic material, since it combines the superior detonation performance of CL-20 and good mechanical sensitivity of MTNP. In order to promote its progress to practical use, a rapid, facile and candidate large-scale manufacture method-spray drying was used to prepare the CL-20/MTNP cocrystal in this study. The morphology, crystal structure and thermodynamic behavior of the resulted CL-20/MTNP-SD cocrystal, raw materials and the cocrystal prepared via solvent evaporation method (CL-20/MTNP-E) were systematically studied by scanning electron microscopy (SEM), X-ray diffraction spectroscopy (XRD) and differential scanning calorimetry (DSC), respectively. The resulted CL-20/MTNP-SD cocrystal shows a regular spherical shape with diameter narrowly distributed from 0.2 µm to 2 µm. This morphology is different from the rod-like shape of CL-20/MTNP-E cocrystal. The crystal structure and thermal behavior CL-20/MTNP-SD is similar to the CL-20/MTNP-E cocrystal, and totally different to the raw materials. Additionally, the initiation temperature and activation energy for thermal decomposition of the CL-20/MTNP-SD cocrystal are slightly lower than the CL-20/MTNP-E cocrystal. The short pulse slapper sensitivity of cocrystals have been investigated. The spray drying method endows CL-20/MTNP cocrystal with the ability of being initiated by short-duration impulse. And the slapper impact initiating threshold of CL-20/MTNP-SD cocrystal is even lower than the commonly used initiating explosive 2,2′,4,4′,6,6′-hexanitrostilbene (HNS). This result evokes a prospective application of CL-20/MTNP-SD cocrystal as an initiating explosive for short impulse shockwave. |
| first_indexed | 2024-03-13T06:47:26Z |
| format | Article |
| id | doaj.art-7f9439804d5548de98a5572a07300e68 |
| institution | Directory Open Access Journal |
| issn | 2667-1344 |
| language | English |
| last_indexed | 2024-03-13T06:47:26Z |
| publishDate | 2023-06-01 |
| publisher | KeAi Communications Co. Ltd. |
| record_format | Article |
| series | FirePhysChem |
| spelling | doaj.art-7f9439804d5548de98a5572a07300e682023-06-08T04:20:06ZengKeAi Communications Co. Ltd.FirePhysChem2667-13442023-06-0132158163Morphology and properties of CL-20/MTNP cocrystal prepared via facile spray dryingXueyan Zhao0Zongwei Yang1Shen Qiao2Junyu Piao3Hongzhen Li4Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang 621900, China; Corresponding author.Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang 621900, ChinaInstitute of Chemical Materials, China Academy of Engineering Physics, Mianyang 621900, China; School of Environmental and Safety Engineering, North University of China, Taiyuan, Shanxi 030051, ChinaInstitute of Chemical Materials, China Academy of Engineering Physics, Mianyang 621900, ChinaInstitute of Chemical Materials, China Academy of Engineering Physics, Mianyang 621900, ChinaCocrystal of 2,4,6,8,10,12-hexaazaisowurtzitane/1-methyl-3,4,5-trinitropyrazole (CL-20/MTNP) in a 1:1 molar ratio is a promising energetic material, since it combines the superior detonation performance of CL-20 and good mechanical sensitivity of MTNP. In order to promote its progress to practical use, a rapid, facile and candidate large-scale manufacture method-spray drying was used to prepare the CL-20/MTNP cocrystal in this study. The morphology, crystal structure and thermodynamic behavior of the resulted CL-20/MTNP-SD cocrystal, raw materials and the cocrystal prepared via solvent evaporation method (CL-20/MTNP-E) were systematically studied by scanning electron microscopy (SEM), X-ray diffraction spectroscopy (XRD) and differential scanning calorimetry (DSC), respectively. The resulted CL-20/MTNP-SD cocrystal shows a regular spherical shape with diameter narrowly distributed from 0.2 µm to 2 µm. This morphology is different from the rod-like shape of CL-20/MTNP-E cocrystal. The crystal structure and thermal behavior CL-20/MTNP-SD is similar to the CL-20/MTNP-E cocrystal, and totally different to the raw materials. Additionally, the initiation temperature and activation energy for thermal decomposition of the CL-20/MTNP-SD cocrystal are slightly lower than the CL-20/MTNP-E cocrystal. The short pulse slapper sensitivity of cocrystals have been investigated. The spray drying method endows CL-20/MTNP cocrystal with the ability of being initiated by short-duration impulse. And the slapper impact initiating threshold of CL-20/MTNP-SD cocrystal is even lower than the commonly used initiating explosive 2,2′,4,4′,6,6′-hexanitrostilbene (HNS). This result evokes a prospective application of CL-20/MTNP-SD cocrystal as an initiating explosive for short impulse shockwave.http://www.sciencedirect.com/science/article/pii/S2667134422000517Energetic cocrystalSpray dryingSlapper initiation |
| spellingShingle | Xueyan Zhao Zongwei Yang Shen Qiao Junyu Piao Hongzhen Li Morphology and properties of CL-20/MTNP cocrystal prepared via facile spray drying FirePhysChem Energetic cocrystal Spray drying Slapper initiation |
| title | Morphology and properties of CL-20/MTNP cocrystal prepared via facile spray drying |
| title_full | Morphology and properties of CL-20/MTNP cocrystal prepared via facile spray drying |
| title_fullStr | Morphology and properties of CL-20/MTNP cocrystal prepared via facile spray drying |
| title_full_unstemmed | Morphology and properties of CL-20/MTNP cocrystal prepared via facile spray drying |
| title_short | Morphology and properties of CL-20/MTNP cocrystal prepared via facile spray drying |
| title_sort | morphology and properties of cl 20 mtnp cocrystal prepared via facile spray drying |
| topic | Energetic cocrystal Spray drying Slapper initiation |
| url | http://www.sciencedirect.com/science/article/pii/S2667134422000517 |
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