Method for the preparation of uniform triaminotrinitrobenzene microparticles
| DWPI Title: Making triaminotrinitrobenzene (TATB) microparticles used for military grade explosives involves adding antisolvent precipitant to emulsion having micelles of TATB-ionic liquid solution dispersed in solvent i.e. immiscible in ionic liquid |
| Abstract: A new, rapid and inexpensive synthesis method for monodispersed triaminotrinitrobenzene (TATB) microparticles based on micelle-confined precipitation that enables control of microscopic morphology. The morphology of the TATB microparticles can be tuned between quasi-spherical and faceted by controlling the speed of recrystallization. The method enables improved performance and production consistency of TATB explosives for military grade explosives and propellants |
| Use: The method is useful for synthesizing TATB microparticles (claimed) which are used for military grade explosives and propellants. |
| Advantage: The method: is rapid and inexpensive; enables control of microscopic morphology, where the morphology of the TATB microparticles can be tuned between quasi-spherical and faceted by controlling the speed of recrystallization; enables improved performance and production consistency of TATB explosives; provides TATB microparticles with uniform particle size and spherical shape, and which exhibit greater insensitivity and improved reproducibility and reliability of explosive devices, due to their desirable size and morphology, as compared to currently available TATB products, and can enhance energetic material stability by not showing faceted features or sharp edges; and utilizes ionic liquid as carrier solvent to achieve practical TATB solubility, high polarity contrast against octane, and moderate operation conditions. |
| Novelty: Synthesizing triaminotrinitrobenzene (TATB) microparticles, comprises: providing a first solution comprising TATB dissolved in an ionic liquid; providing a second solution comprising a nonionic surfactant and a solvent that is immiscible in and has a high polarity contrast against the ionic liquid; mixing the first and the second solutions while being sonicated to form an emulsion comprising micelles of the first solution dispersed in the solvent; and adding an antisolvent precipitant to the emulsion to precipitate microparticles of TATB in the micelles. |
| Filed: 7/24/2018 |
| Application Number: US16043800A |
| Tech ID: SD 14511.1 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
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