Jianlong Wang

Determination and Correlation of the Solubility of 2,4,6,8,10,12-Hexacyclobutyl-2,4,6,8,10,12-Hexaazaisowurtzitane in Twelve Pure Solvents from 273.15 to 313.15 K

Guannan Zhao, Yangzheng Wu, Xinyi Zhong, Yunlu Li et autres

Reliable solubility data are needed for solvent selection and process optimization in the synthesis, purification, and nitration of 2,4,6,8,10,12-hexacyclobutyl-2,4,6,8,10,12-hexaazaisowurtzitane (HCBIW), a key precursor of CL-20. In this work, the solid–liquid equilibrium solubility of HCBIW in 12 pure solvents was measured by the …

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Solubility determination, thermodynamic modeling, and Hansen solubility parameter analysis of 2,4,6,8,10,12-hexacyclopropyl-2,4,6,8,10,12-hexaazaisowurtzitane in dichloromethane–acetonitrile binary solvent systems

Yiran Li, Xinyi Zhong, Shangbiao Feng, Guanchao Lan et autres

2,4,6,8,10,12-Hexacyclopropyl-2,4,6,8,10,12-hexaazaisowurtzitane (HCPIW) is a promising nitration precursor for CL-20 synthesis, featuring a streamlined route and high yield. Accurate solubility data of HCPIW are essential for optimising crystallisation and scaling up CL-20 production. In this study, the solubility of HCPIW in dichloromethane–acetonitrile binary …

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Study on the effects of plasticizer on the properties of natural rubber

Pang Kairui, Xiao Ma, Hou Yun-hui, Tao Fang et autres

Abstract Binders are crucial for polymer‐bonded explosives (PBX), directly impacting their properties. While synthetic polymer binders perform well, their high cost limits large‐scale application. In contrast, natural rubber offers abundant availability and low cost as an alternative binder, significantly reducing preparation costs. …

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Study on the Synthesis Process of 1,3,5‐Triazide‐2,4‐dinitrobenzene

Sha Bai, Yunlu Li, Shangbiao Feng, Guanchao Lan et autres

ABSTRACT 1,3,5‐Triazide‐2,4‐dinitrobenzene (TADNB) is an environmentally friendly lead‐free green primary explosive and an important intermediate of benzotrifuroxan, widely used in the field of primary explosives. However, existing synthesis methods suffer from problems such as high raw material ratios, unclear product purity, and …

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Thermal decomposition kinetics of the synthesis of Dinitroglycoluril

Sha Bai, Dan He, Jing-Jing Zhao, Luting Wang et autres

Dinitroglycoluril (DNGU), as an energetic material with excellent insensitivity, low vulnerability, and high thermal stability, has been partially used as a substitute for RDX in Hexolit mixed explosives since its industrial production in the 1970s. However, systematic research on the thermal decomposition …

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Determination and Correlation of Solubility of Benzotrifuroxan in 12 Pure Solvents at Temperatures Ranging from 293.15 to 333.15 K

Sha Bai, Yunlu Li, Shangbiao Feng, Guanchao Lan et autres

Benzotrifuroxan (BTF), as a green hydrogen-free explosive, has a critical impact on its application performance due to its purity. However, there is a lack of systematic research on its solubility in the literature. This study used laser dynamics to systematically measure the …

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Determination and Correlation of Solubility of 2,4,6,8,10,12-Hexacyclopropyl-2,4,6,8,10,12-hexaazaisowurtzitane in 12 Pure Solvents at Temperatures Ranging from 278.15K to 318.15K

Juan Du, Yunlu Li, Jianlong Wang, Lizhen Chen

2,4,6,8,10,12-Hexacyclopropyl-2,4,6,8,10,12-hexaazaisowurtzitane (HCPIW) is a novel nitration precursor used in the synthesis of CL-20 (2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane). Investigating the solubility of HCPIW is of significant importance for optimizing its synthesis and crystallization processes, as well as for advancing the development of the CL-20 synthetic route. …

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Preparation, characterization, transformation and molecular simulation of trans-hexanitrostilbene and cis-hexanitrostilbene

Bo Wang, Jun Chen, Qiang Liu, J. H. Wang et autres

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Determination and Correlation of the Solubility of 1,3,5-Trichloro-2,4-dinitrobenzene in 12 Pure Solvents at Temperatures Ranging from 278.15 to 318.15 K

Sha Bai, Xiang Pei, Yunzhang Liu, Yan Yumin et autres

1,3,5-Trichloro-2,4-dinitrobenzene (TCDNB) is an important intermediate for the synthesis of the explosive BTF, and its purity directly affects the synthesis and application of BTF. However, there are few reported data on the solubility of TCDNB in the literature. Considering the importance of …

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EDIT: Enhancing Vision Transformers by Mitigating Attention Sink through an Encoder-Decoder Architecture

Wenfeng Feng, Hongxiang Wang, Jianlong Wang, Xin Zhang et autres

In this paper, we propose EDIT (Encoder-Decoder Image Transformer), a novel architecture designed to mitigate the attention sink phenomenon observed in Vision Transformer models. Attention sink occurs when an excessive amount of attention is allocated to the [CLS] token, distorting the model's …

Solubility and Thermodynamic Analysis of 3,4-Bis(3-nitrofurazan-4-yl)furoxan in Propanoic Acid + Water Binary Mixed Solvents

Xiao Li, Jinjie Shen, Zhang JiHui, Liang Qin et autres

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Measurement and Correlation of Solubilities of γ-2,4,6,8,10,12-Hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane (γ-CL-20) in Six Pure Solvents and Four Different Chloralkane + Ethyl Acetate Binary Solvents from 283.15 to 323.15 K

Ping Feng, Dan He, Guangyuan Zhang, Liang Qin et autres

2,4,6,8,10,12-Hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane (CL-20) has the highest crystal density and detonation speed among high-energy materials and is widely used in military and aerospace industries. However, data on the solubility of γ-CL-20 are rarely reported in the open literature. Considering the solubility is important to …

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