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An energetic nano-fiber composite based on polystyrene and 1,3,5-trinitro-1,3,5-triazinane fabricated via electrospinning technique

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Defence Technology(防务技术) 2023年第9期27卷 1-8页

作者： Mahmoud Abdelhafiz Ahmed K.Hussein Waleed F.Khalil Ahmed Elbeih Military TechnicalCollege(MTC) KobryElkobbahCairoEgypt Safety FuelCycleDepartment NRSRCEgyptianAtomicEnergyAuthority(EAEA)CairoEgypt

Electrospinning is a simple technique used to fabricate polymeric nano-fibrous *** nano-fibers have found a wide range of valuable applications in the biomedical ***,it has not been utilized with solid high explosives ***,the electrospinning technique has been used to fabricate polystyrene(PS)/1,3,5-trinitro-1,3,5-triazinane(RDX)composite *** governed electrospinning parameters,voltage,distance from the collector,flow rate,mandrel rotating speed,time,and solution concentration,that greatly affect the morphology of the obtained nanofibers were *** fabricated PS/RDX nano-fibers were characterized using scanning electron microscopy(SEM),X-ray diffractometer(XRD),and Fourier Transform Infrared(FTIR)*** impact and friction sensitivities of PS/RDX were also *** thermal behavior of the prepared composite and the pure materials were studied by the thermal gravimetric analysis technique(TGA).SEM results proved the fabrication of PS/RDX fibers in the nano-size via *** spectroscopy confirmed the existence of the characteristic functional groups of both PS and RDX in the composite *** sharp peaks showed the conversion of amorphous PS into crystalline shape via electrospinning and also confirmed the formation of PS/RDX *** PS fibers absorbed the heat and increased the onset decomposition of the pure RDX from 181.5 to 200.7℃in the case of PS/RDX ***,PS/RDX nano-fibers showed the relatively low impact and friction sensitivities of 100 J and 360 N *** results could introduce PS/RDX nanofibrous composite in the field of explosives detection with high levels of safety.

关键词： Electrospinning nano-fibers 1,3,5-Trinitro-1,3,5-triazinane(RDX) Polystyrene(PS) Sensitivity

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Preparation of chain copper oxide nanoparticles by microwave

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Rare Metals 2007年第5期26卷 476-481页

作者： LI Zaiyuan LIU Yan GONG Panwei ZHAI Yuchun School of Materials and Metallurgy Northeastern University Shenyang 110004 China School of Chemical Engineering Liaoning Petroleum and Chemical Engineering University Fushun 113001 China

Cu（OH）2 nano-fibers were prepared by chemical precipitation with CuSO4·5H2O and NaOH as raw materials. The Cu（OH）2 nano-fibers have a diameter of 10-30 nm and a length of 1-6 μm. The reaction conditions were as follows： the concentration of CuSO4 solution was 0.1 mol·L^-1,NaOH solution 4 mol·L^-1,the dropping rate of the NaOH solution 50 mL·min^-1,the reaction temperature 20℃the pH value of the reaction terminal 13,and the stirring rate 1200 r·min^-1. The chain nano-CuO grains were obtained through the microwave radiation of the Cu（OH）2 nano-fibers.

关键词： copper oxide Cu(OH)2 nano-fibers microwave chain

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Electrospinning and Electrospun nanofibers

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World Journal of nano Science and Engineering 2016年第2期6卷 45-50页

作者： Lefayet Sultan Lipol Md. Moshiur Rahman University of Borås Bor&arings Sweden

Electro-spinning is a very modern process which can be used in various purposes. We did this experimental work at Swerea IVF in Sweden during M. Sc in Textile Technology programme at University of Bor?s. We should especially thank our supervisor—Anna Thorvaldsson and course teacher—Ioannis S. Chronakis. In this report, we have tried to explain the basic manufacturing techniques of the electrospun nanofiber by the electro-spinning, how one can characterize it by SEM (Scanning Electron Microscopy) and its various applications in the practical field, e.g wound healing, Tissue Engineering Scaffold. The experimental work helped us a lot to gather sufficient knowledge about the electro-spinning process which we wanted to share with all.

关键词： nano-fibers Tissue Engineering Scaffold nano-Collagen Cartilage and Bones Bladder and Kidney SEM (Scanning Electron Microscopy)

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纳米结构化三相接触线的新效应

纳米结构化三相接触线的新效应

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中国化学会第二十五届学术年会

作者：刘刚赵江中国科学院化学研究所高分子物理与化学国家重点实验室高分子科学与材料联合实验室中国科学院化学研究所高分子物理与化学国家重点实验室高分子科学与材料联合实验室

Structured three-phase contact lines were created on the ordered surface of block copolymer of PS-b-PMMA, and the physics and new effects of such a nano-structured contact line were investigated. By m

关键词： structured three-phase contact line block copolymer DNA nano-fibers

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