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×÷Õß: Qing Ma, Maoping Wen, Baohui Zheng, Chuanlan He, Hengjian Huang and Dabin Liu ÎÄÌâ: Intermolecular interaction and mechanical properties of energetic plasticizer MN reinforced 2,4,6-trinitrotoluene/1,3,5-trinitrohexahydro-1,3,5-triazine molten-energetic-composite (MEC) ÆÚ¿¯Ãû: RSC Advances ÆÚ¿¯Äê·Ý: 2015 ¾í(ÆÚ),ÆðÖ¹Ò³Âë: 5, 33755-33761 Êý¾Ý¿âÃû³Æ: RSCÓ¢¹ú»Ê¼Ò»¯Ñ§»áÊý¾Ý¿â |
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king985: ½ð±Ò+5, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸ 2016-09-21 13:03:38
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king985: ½ð±Ò+5, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸ 2016-09-21 13:03:38
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https://apps.webofknowledge.com/ ... age=1&doc=1 Intermolecular interaction and mechanical properties of energetic plasticizer MN reinforced 2,4,6-trinitrotoluene/1,3,5-trinitrohexahydro-1,3,5-triazine molten-energetic-composite (MEC) ×÷Õß:Ma, Q (Ma, Qing)[ 1,2 ] ; Wen, MP (Wen, Maoping)[ 1 ] ; Zheng, BH (Zheng, Baohui)[ 1 ] ; He, CL (He, Chuanlan)[ 1 ] ; Huang, HJ (Huang, Hengjian)[ 1 ] ; Liu, DB (Liu, Dabin)[ 2 ] RSC ADVANCES ¾í: 5 ÆÚ: 43 Ò³: 33755-33761 DOI: 10.1039/c5ra03666f ³ö°æÄê: 2015 ²é¿´ÆÚ¿¯ÐÅÏ¢ RSC ADVANCES ³ö°æÉÌ ROYAL SOC CHEMISTRY, THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND ISSN: 2046-2069 Ñо¿ÁìÓò Chemistry ÕªÒª Enhancing the mechanical properties is always an attractive challenge in the research area of energetic materials (EMs). In the present work, 1.5 wt% MN-plasticizers (mononitrotoluene compounds, a mixture of 2-nitrotoluene and 4-nitrotoluene) were applied for reinforcing a molten-energetic-composite (MEC) 2,4,6-trinitrotoluene (TNT)/1,3,5-trinitrohexahydro-1,3,5-triazine (RDX). Brazilian disk testing results show that the tensile modulus of reinforced MEC increases by 26%. In order to explore the reinforcement mechanism, quantum chemistry (QC) and molecular dynamics (MD) simulations were performed to study the structural and physical properties of the reinforced MEC. The basis set superposition error (BSSE) and the interaction energies of TNT, RDX and plasticizers were computed at the MP2/6-311++G** level. Compared with the weak interaction energy between RDX and TNT (-1.586 kJ mol(-1)), the interaction energies of reinforced MEC increase massively after incorporating MN-plasticizer. The SEM images of fractured surfaces from MECs also reveal that MNs can form layered deposits in TNT and closely surround crystalline RDX due to the presence of strong intermolecular interaction. Besides, MD simulation results further explain that the tensile modulus of (100) TNT and (100) RDX increases when introducing MN plasticizer separately, which agree with the change trends of mechanical properties from the Brazilian disk test. This work provides a new path for studying reinforced energetic composites by combining microscopy, mechanical testing and theoretical simulations. ¹Ø¼ü´Ê KeyWords Plus ENSITY-FUNCTIONAL THERMOCHEMISTRY; MOLECULAR-DYNAMICS; TENSILE-STRENGTH; CO-CRYSTAL; GRADIENT; RDX; TNT; FRACTURE; DESIGN ×÷ÕßÐÅÏ¢ ͨѶ×÷ÕßµØÖ·: Zheng, BH (ͨѶ×÷Õß) China Acad Engn Phys, Inst Chem Mat, Mianyang 621900, Peoples R China. ÔöÇ¿×éÖ¯ÐÅÏ¢µÄÃû³Æ Chinese Academy of Engineering Physics µØÖ·: [ 1 ] China Acad Engn Phys, Inst Chem Mat, Mianyang 621900, Peoples R China ÔöÇ¿×éÖ¯ÐÅÏ¢µÄÃû³Æ Chinese Academy of Engineering Physics [ 2 ] Nanjing Univ Sci & Technol, Natl Key Lab So Chem & Funct Mat, Nanjing 210094, Jiangsu, Peoples R China ÔöÇ¿×éÖ¯ÐÅÏ¢µÄÃû³Æ Nanjing University of Science & Technology µç×ÓÓʼþµØÖ·:zhengbaohui305@163.com; huanghengjian@caep.cn »ù½ð×ÊÖúÖÂл »ù½ð×ÊÖú»ú¹¹ ÊÚȨºÅ NSAF Foundation of National Natural Science Foundation of China China Academy of Engineering Physics 11076002 NSFC Foundation of National Natural Science Foundation of China 11402237 51373159 ²é¿´»ù½ð×ÊÖúÐÅÏ¢¹Ø±Õ»ù½ð×ÊÖúÐÅÏ¢ The authors wish to express their gratitude to the NSAF Foundation of National Natural Science Foundation of China and China Academy of Engineering Physics (Grant no. 11076002) and the NSFC Foundation of National Natural Science Foundation of China (Grant nos 11402237 and 51373159) for financial support. ³ö°æÉÌ ROYAL SOC CHEMISTRY, THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND Àà±ð / ·ÖÀà Ñо¿·½Ïò:Chemistry Web of Science Àà±ð:Chemistry, Multidisciplinary ÎÄÏ×ÐÅÏ¢ ÎÄÏ×ÀàÐÍ:Article ÓïÖÖ:English Èë²ØºÅ: WOS:000353167500006 ISSN: 2046-2069 ÆäËûÐÅÏ¢ IDS ºÅ: CG3GR Web of Science ºËÐĺϼ¯ÖÐµÄ "ÒýÓõIJο¼ÎÄÏ×": 45 Web of Science ºËÐĺϼ¯ÖÐµÄ "±»ÒýƵ´Î": 0 JCR® Àà±ð JCR ·ÖÇø CHEMISTRY, MULTIDISCIPLINARY Q2 Êý¾ÝÀ´×ÔµÚ 2015 °æ Journal Citation Reports® |
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ENSITY-FUNCTIONAL THERMOCHEMISTRY; MOLECULAR-DYNAMICS; TENSILE-STRENGTH; CO-CRYSTAL; GRADIENT; RDX; TNT; FRACTURE; DESIGN