Materials Chemistry and Physics, Год журнала: 2024, Номер 328, С. 129936 - 129936
Опубликована: Сен. 10, 2024
Язык: Английский
Crystal Growth & Design, Год журнала: 2024, Номер 24(17), С. 7361 - 7388
Опубликована: Авг. 19, 2024
In 2011, cocrystallization of energetic materials became a hot topic and pathway to overcome the energy−safety contradiction; especially for commercially attractive nitramines, it first preference researchers. The present review focuses on energetic−energetic four CL20, HMX, BCHMX, RDX, structural aspects these cocrystals, their influence thermochemical detonation properties. Cocrystallization has proven be crystal engineering technique achieve safety morphological suitability cocrystals (EECCs). Overall, in most cases, impact sensitivities EECCs are decreased, this is phenomenal change; however, needed adjust with properties slightly, negligible if coformer (EMs) properly chosen. There other notable variations morphologies packing crystals, including key such as relatively high density melting point. These changes occur due binding energy, trigger bond length, cohesive energy during cocrystallization. Researchers highly focused nitramines; earlier reported methods lacking selectivity scalability. When comes adoption industrial scale production EECCs, more difficult. We conducted thorough literature survey. Also we discussed about recently developed VPSZ coagglomeration method, which provides huge opportunity tune performance existing easy up level.
Язык: Английский
Процитировано
6
FirePhysChem, Год журнала: 2024, Номер 5(1), С. 68 - 73
Опубликована: Июнь 1, 2024
The literature widely reported information about apparent high impact sensitivities of both the pure 2,4,6-trinitrotoluene (TNT; i.e. 14 - 16 J) and ɛ-2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane (ɛ-CL20; 2 4.4 J), which mostly correspond to BAM method determination. This brief overview discusses reasons these error data. physical organic chemistry approach this problem has confirmed Beijing Inst. Technology value 13.2 J for ɛ-CL20 LANL 39.2 TNT. morphological instability ɛ-CL20, when in contact with polar binders or plasticizers, might not have much influence on its application propellants. stabilization ɛ- β-CL20 upon entry into a cocrystal coformer having character polynitro compound (especially nitramines) could be practical importance. sensitivity TNT is important handling processing safety related specific samples. However, they cannot used molecular-structural analyses predictions as comparative standard, currently widespread literature.
Язык: Английский
Процитировано
4
Advanced Functional Materials, Год журнала: 2025, Номер unknown
Опубликована: Янв. 7, 2025
Abstract Among human deaths induced by abnormal weather, ≈95% are caused low temperatures. Personal thermal management (PTM) is more energy efficient than traditional central heating. Inspired “Trojan War” and combined with the advantages of natural leather, a novel chrome‐free tanning agent (OMFA) Horse” effect constructed based on ZrOCl 2 ‐assisted oxidation mineral fulvic acid. It innovatively realizes “One Stone Three Birds” integrated strategy tanning, dyeing PTM leather preparation. OMFA, just like Trojan horse, brings Zr 4+ into all hierarchy leather; as result, OMFA firmly fixed in collagen fibers chemical cross‐linking. The shrinking temperature resultant reaches 82.7 °C color difference less 0.2, showcasing good hydrothermal stability fastness. Moreover, solar absorption rate tanned 78.3%. In outdoor test, surface higher 20.9 3.4 ambient at noon evening, respectively. This study first time to confer properties onto means tanning. work expected replace chrome agent, reduce dye wastewater discharge, realize clean utilization.
Язык: Английский
Процитировано
0
Materials Chemistry and Physics, Год журнала: 2025, Номер unknown, С. 130795 - 130795
Опубликована: Март 1, 2025
Язык: Английский
Процитировано
0
Cellulose, Год журнала: 2024, Номер 31(9), С. 5479 - 5498
Опубликована: Май 6, 2024
Язык: Английский
Процитировано
2
Advanced Composites and Hybrid Materials, Год журнала: 2024, Номер 7(4)
Опубликована: Июль 18, 2024
Abstract Composite microcrystals of the cyclic nitramines 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane (ε-CL-20), 1,3,5-trinitro-1,3,5-triazinane(RDX), 1,3,5,7-tetranitro-1,3,5,7-tetrazocane (β-HMX), and cis-1,3,4,6-tetranitrooctahydroimidazo-[4,5-d]imidazole (BCHMX) with polyaniline (PANi) have been prepared thoroughly characterized in terms morphology phase purity. PANi outperformed other conducting polymers selectivity towards NAs due to its better interaction NAs, low production cost, ease preparation. The bonding polymeric chain has examined by means Fourier transform infrared (FTIR), Raman spectroscopy methods, fluorescence quenching; spectrum shown laser sensitivity these microcrystals. Powder X-ray diffraction results changes polymorph modifications CL20 (from ɛ β) HMX β α) during preparation composites, which also confirmed spectral differential thermal analysis techniques. structural orientations found composites significantly stabilize against impact; their detonation properties slightly deteriorated, but electrical conductivity strongly increased electric-spark sensitivity. above determine potential use mainly as parts electric or impulse initiators, having “a green character”, for various charges.
Язык: Английский
Процитировано
2
Materials Chemistry and Physics, Год журнала: 2024, Номер 328, С. 129936 - 129936
Опубликована: Сен. 10, 2024
Язык: Английский
Процитировано
2