FirePhysChem最新文献_第10页

Recent advances in the synthesis and performance of 1,2,4,5-tetrazine-based energetic materials 1,2,4,5-四氮基含能材料的合成与性能研究进展

FirePhysChem Pub Date : 2023-03-01 DOI: 10.1016/j.fpc.2022.09.005

Leonid L. Fershtat

引用次数: 9

Continuous flow resonance acoustic mixing technology: a novel and efficient strategy for preparation of nano energetic materials 连续流共振声混合技术:制备纳米含能材料的一种新颖高效的策略

FirePhysChem Pub Date : 2023-03-01 DOI: 10.1016/j.fpc.2022.08.001

Song Zhang , Lewu Zhan , Yifan Zhang, Jing Hou, Bindong Li

{"title":"Continuous flow resonance acoustic mixing technology: a novel and efficient strategy for preparation of nano energetic materials","authors":"Song Zhang , Lewu Zhan , Yifan Zhang, Jing Hou, Bindong Li","doi":"10.1016/j.fpc.2022.08.001","DOIUrl":"https://doi.org/10.1016/j.fpc.2022.08.001","url":null,"abstract":"<div><p>Recently, microfluidic technology has been widely applied to the preparation of nano-energetic materials. The mixing efficiency of fluid is one of the significant factors which could affect the particle size and particle size distribution (PSD) of products. In this report, a novel strategy to enhance the mixing performance of fluid is developed by combining continuous flow microfluidic and resonant acoustic mixing (RAM) technologies. The results of the fluid visualization and 3D-Computational fluid dynamics (CFD) simulation showed that the new continuous flow resonance acoustic mixing (CFRAM) technology has better mixing efficiency than the traditional microfluidic approach. To demonstrate the utility of this CFRAM technology, it was implemented in the continuous preparation of 1,3,5-triamino-2,4,6-trinitrobenzene (TATB) nanoparticles. Compared with previous reported results, nano TATB prepared by CFRAM technology has a smaller average particle size (<em>D</em><sub>50</sub> = 50.8 nm) and a narrower particle size distribution (<em>D</em><sub>10</sub> = 33.0 nm; <em>D</em><sub>90</sub> = 69.6 nm). The XRD spectrum shows that the crystal structure of nano TATB has not changed. DSC test results show that the apparent activation energy of nano TATB is 177.8 kJ/mol, which is 6.5 kJ/mol lower than the raw TATB, and has good thermal stability. We expect that this strategy may open a new avenue for the efficient preparation of nano energetic materials with narrow PSD.</p></div>","PeriodicalId":100531,"journal":{"name":"FirePhysChem","volume":"3 1","pages":"Pages 29-36"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49871369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Validation of approaches (introduction of conjugation & condensation with triazole ring/s) for imparting/improving thermal stability of explosives, Part II 提高炸药热稳定性方法的验证(引入三唑环的共轭和缩合)，第2部分

FirePhysChem Pub Date : 2023-03-01 DOI: 10.1016/j.fpc.2022.10.003

Jai Prakash Agrawal , Vishal Suresh Dodke

{"title":"Validation of approaches (introduction of conjugation & condensation with triazole ring/s) for imparting/improving thermal stability of explosives, Part II","authors":"Jai Prakash Agrawal , Vishal Suresh Dodke","doi":"10.1016/j.fpc.2022.10.003","DOIUrl":"https://doi.org/10.1016/j.fpc.2022.10.003","url":null,"abstract":"<div><p>There are 4 general approaches for imparting or improving thermal stability of explosives <img> ‘Salt Formation’, ‘Introduction of Amino Group/s’, ‘Introduction of Conjugation’ & ‘Condensation with Triazole Ring/s’ as proposed by Agrawal which were supported by some typical examples. We have recently reported a large number of explosives which validate ‘Salt Formation’ & ‘Introduction of Amino Group/s’ approaches. In this review paper, we report additional examples of explosives scattered over in the literature to validate the ‘Introduction of Conjugation’ & ‘Condensation with Triazole Ring/s’ approaches for imparting/improving thermal stability of explosives. Wherever, data on thermal stability is not available in the literature, the same has been calculated using Energetic Materials Designing Bench (EMDB), Version 1.0. The data generated on a large number of explosives clearly brings out validation of ‘Introduction of Conjugation’ & ‘Condensation with Triazole Ring/s’ approaches for imparting/improving thermal stability of explosives. Further, as the number of triazole ring/s increases, thermal stability also increases. In addition, density, impact sensitivity & velocity of detonation data of promising explosives which are also essential from their application point of view, have been reported. This study also reveals that explosives (i) DAHNS (Explosive 3), PATO (Explosive 15), BTATNB (Explosive 17), TTTATNB (Explosive 19), DANTNP (Explosive 31) and TTATNB (Explosive 35) appear to be better substitutes of HNS and (ii) BDATTz (Explosive 36) and BTDAONAB (Explosive 39) appear to be better substitutes of TATB, a benchmark thermally stable explosive at present.</p></div>","PeriodicalId":100531,"journal":{"name":"FirePhysChem","volume":"3 1","pages":"Pages 1-10"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49871371","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis of a new oxa-type cage-like energetic compound 4,4,8,8-tetranitro-2-oxaadamantane 一种新的oxa型笼状能化合物4,4,8,8-四硝基-2-草金刚烷的合成

FirePhysChem Pub Date : 2023-03-01 DOI: 10.1016/j.fpc.2022.09.002

Qi Zhou , Longyi Zhu , Rongbin Cai, Huan Li, Jun Luo

引用次数: 1

Research progress of nitrate ester binders 硝酸酯类粘合剂的研究进展

FirePhysChem Pub Date : 2023-03-01 DOI: 10.1016/j.fpc.2022.09.003

Jinkang Dou , Minghui Xu , Bojun Tan , Xianming Lu , Hongchang Mo , Bozhou Wang , Ning Liu

{"title":"Research progress of nitrate ester binders","authors":"Jinkang Dou , Minghui Xu , Bojun Tan , Xianming Lu , Hongchang Mo , Bozhou Wang , Ning Liu","doi":"10.1016/j.fpc.2022.09.003","DOIUrl":"https://doi.org/10.1016/j.fpc.2022.09.003","url":null,"abstract":"<div><p>Nitrate ester binders are a unique class of energetic binders containing nitrate ester (-ONO<sub>2</sub>) pendant groups attached to the polymeric backbones, which have been extensively employed in solid propellant formulations to improve overall energy output and oxygen balance. Both polymerization of nitrate ester monomers and chemical modification of inert polymers are commonly used methods for constructing such binders. Poly(glycidyl nitrate) [PGN] and poly(3-nitratomethyl-3-methyloxetane) [PNIMMO] are well-investigated nitrate ester pre-polyethers formed by cationic ring-opening polymerization (CROP) from nitrate ester monomers, and their synthesis, properties, chemical modification and applications in solid propellants are discussed in detail. It is worth noting that PGN and PNIMMO as soft blocks can further generate energetic thermoplastic elastomers (TPEs) by polyurethane addition polymerization, which have emerged as potential energetic binder candidates for thermoplastic propellants and melt-cast explosives. Therefore, the recent advances of PGN-based TPEs and PNIMMO-based TPEs are subsequently presented. Finally, the synthesis, properties and applications in propellants of several nitrate ester-modified polymers such as cellulose-based nitrates, nitrated hydroxyl‑terminated polybutadiene (NHTPB) and polyvinyl nitrate (PVN), obtained by direct/indirect nitration of inert polymers, are briefly described.</p></div>","PeriodicalId":100531,"journal":{"name":"FirePhysChem","volume":"3 1","pages":"Pages 54-77"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49871364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Prediction of aquatic toxicity of energetic materials using genetic function approximation 用遗传函数近似法预测含能物质的水生毒性

FirePhysChem Pub Date : 2023-03-01 DOI: 10.1016/j.fpc.2022.07.001

Sergey V. Bondarchuk

{"title":"Prediction of aquatic toxicity of energetic materials using genetic function approximation","authors":"Sergey V. Bondarchuk","doi":"10.1016/j.fpc.2022.07.001","DOIUrl":"https://doi.org/10.1016/j.fpc.2022.07.001","url":null,"abstract":"<div><p>The first attempt to use genetic function approximation (GFA) for prediction of aquatic toxicity of soluble energetic materials is reported in this paper. The prediction is based on the estimation of the luminescent bacteria <em>Aliivibrio fischeri</em> inhibition in water according to the recently reported experimental results. Thus, two quantitative structure-activity relationship (QSAR) models for 15 min and 30 min exposure were obtained, which include five and six essential descriptors, respectively. Most of them are so-called “fast descriptors” assuming there is no need for quantum-chemical calculations. The rest descriptors are obtained in terms of semi-empirical approach allowing the prediction to be rapidly complete. The developed QSAR models provide relatively high correlation coefficients, namely, <em>R</em><sup>2</sup> = 0.81 and 0.82 for 15 min and 30 min datasets, respectively. The experimental datasets included a number of values, which were presented ambiguously (< or > than certain values). Thus, these have not been included (13 for 15 min and 10 for 30 min datasets) in the training sets and used them as the corresponding test sets. As a result, the developed models accurately indicate what exactly the higher and lower values should be applied instead of ones presented with ambiguity. Thus, the results may be useful for predicting the aquatic toxicity of new nitrogen-rich energetic materials, both molecular and ionic, bearing nitro, nitramino, azido groups and other commonly used explosophores.</p></div>","PeriodicalId":100531,"journal":{"name":"FirePhysChem","volume":"3 1","pages":"Pages 23-28"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49871370","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Synthesis and properties of a promising high energy and low impact sensitivity explosive: hydroxylammonium 3-hydrazino-6-(1H-1,2,3,4-tetrazol-5-ylimino)-s-tetrazine 一种有前途的高能低冲击敏感性炸药:3-肼羟铵-6-(1h -1,2,3,4-四唑-5-酰基氨基)-s-四嗪的合成与性能

FirePhysChem Pub Date : 2023-03-01 DOI: 10.1016/j.fpc.2022.08.002

Zihan Zhang , Xiang Chen , Yuankai Chen , Yuanyuan Li , Hai Nan , Haixia Ma

{"title":"Synthesis and properties of a promising high energy and low impact sensitivity explosive: hydroxylammonium 3-hydrazino-6-(1H-1,2,3,4-tetrazol-5-ylimino)-s-tetrazine","authors":"Zihan Zhang , Xiang Chen , Yuankai Chen , Yuanyuan Li , Hai Nan , Haixia Ma","doi":"10.1016/j.fpc.2022.08.002","DOIUrl":"https://doi.org/10.1016/j.fpc.2022.08.002","url":null,"abstract":"<div><p>Tetrazine compounds, especially their energetic salts, show good application prospect in high-performing energetic materials (EMs). Among them, the hydroxylammonium salt show the best energetic properties. In order to obtain high performance tetrazine energetic salts, 3-hydrazino-6-(1H-1,2,3,4-tetrazol-5-ylimino)-s-tetrazine was selected as the precursor to synthesize its hydroxylammonium salt (HHTTz). The prepared compound was fully characterized by NMR spectra, IR, elemental analysis and differential scanning calorimetry (DSC). Its thermal behaviors were analyzed and the thermodynamic parameters were also calculated at different heating rates. The results disclose that HHTTz possesses onset and the peak temperature at 174.63 °C and 179.63 °C. The thermal safety parameters of HHTTz are relatively inferior to HTATz. What's more, the detonation properties and impact sensitivities were obtained. HHTTz show high detonation properties (<em>D</em> = 9555 m/s and <em>P</em> = 34.1 GPa). The <em>D</em> is better than that of HMX and the <em>P</em> is comparable to that of RDX. Besides, it shows impact sensitivity of 12 J, which reveal HHTTz could be a good candidate of traditional secondary explosive.</p></div>","PeriodicalId":100531,"journal":{"name":"FirePhysChem","volume":"3 1","pages":"Pages 43-47"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49871367","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Combustion behavior of end-sealed nitroamine propellant by photocurable composite deterrents 端封硝基胺推进剂光固化复合阻燃剂的燃烧性能

FirePhysChem Pub Date : 2023-03-01 DOI: 10.1016/j.fpc.2022.08.003

Manman Li, Rui Hu, Yuchen Gao, Weitao Yang, Qionglin Wang

{"title":"Combustion behavior of end-sealed nitroamine propellant by photocurable composite deterrents","authors":"Manman Li, Rui Hu, Yuchen Gao, Weitao Yang, Qionglin Wang","doi":"10.1016/j.fpc.2022.08.003","DOIUrl":"https://doi.org/10.1016/j.fpc.2022.08.003","url":null,"abstract":"<div><p>In this work, energetic composite composed of UV curable polyurethane acrylate and RDX was used as deterrent coating for 19-perforated nitroamine propellants plasticized by nitroglycerin and 1, 5-diazido-3-nitrazpentane (DIANP). The nitroamine propellant was end-sealed with the photocurable energetic composite material by using spraying and UV curing method. Combustion behaviors including burning progressivity and temperature sensitivity were studied by performing closed bomb test on propellants with 0.74%, 1.01% and 1.15% deterrent. The inner structure detection revealed that the deterrent penetrated into the perforations during coating process. The end-sealed propellant with blocked perforations exhibited inhibition of initial gas generation rate, which was demonstrated by dynamic vivacity curves. It is inspiring that the propellants coated with 1.01% and 1.15% deterrent presented excellent consistency according to the dynamic vivacity curves between 20 °C and 50 °C. Moreover. it can be indicated that the plugs in perforations conduced to temperature independence property of propellant under ambient temperature. This benefit contributes to improvement of the firing safety at high temperatures.</p></div>","PeriodicalId":100531,"journal":{"name":"FirePhysChem","volume":"3 1","pages":"Pages 37-42"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49871368","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Synthesis and characterization of two 1,2,4-oxadiazole-furazan-based nitrate ester compounds as potential energetic plasticizers 两种潜在高能增塑剂1,2,4-恶二唑-呋喃氮基硝酸酯化合物的合成与表征

FirePhysChem Pub Date : 2023-03-01 DOI: 10.1016/j.fpc.2021.11.005

Qi Xue , Fuqiang Bi , Junlin Zhang , Jiarong Zhang , Bozhou Wang , Minjie Wu

引用次数: 4

Array of carbon black-based microthrusters for CubeSat applications 用于立方体卫星的碳黑基微型推进器阵列

FirePhysChem Pub Date : 2023-02-28 DOI: 10.1016/j.fpc.2023.01.001

A. Ingenito , S.K. Palateerdham , M. Panzanaro

{"title":"Array of carbon black-based microthrusters for CubeSat applications","authors":"A. Ingenito , S.K. Palateerdham , M. Panzanaro","doi":"10.1016/j.fpc.2023.01.001","DOIUrl":"10.1016/j.fpc.2023.01.001","url":null,"abstract":"<div><p>Access to space for small private companies requires to improve the ability to bring low-cost satellites into orbit. CubeSats offer a unique opportunity to meet these needs thanks to their reduced production times, the low manufacturing costs and ease of use. In order to be able to communicate with each other, exchange information and interact, it is necessary to place CubeSats in formation: in this context, miniature propulsion technologies, including chemical and electric propulsion, play a critical role in achieving mission requirements and maintaining satellites position. In this article, the feasibility of solid propellant micro rockets, fully integrated in an opposing array of printed thrust chambers is examined: each rocket can be fired together with the others or separately to modulate thrust. Theoretical and experimental results show that the microthruster, made of nylon and carbon fiber, have good mechanical and thermal resistance and simultaneously good performance is achieved. In particular, a microthruster with a diameter of 4 mm and a length of 6 mm, with 55 g of black powder propellant, achieves a thrust of about 3.5 N for about 7 ms.</p></div>","PeriodicalId":100531,"journal":{"name":"FirePhysChem","volume":"4 2","pages":"Pages 87-94"},"PeriodicalIF":0.0,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2667134423000019/pdfft?md5=a435fa2a6f77237fef7d79d65ee6dc60&pid=1-s2.0-S2667134423000019-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73850350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0