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The impact of the coupling relationship between projectile size and yarn dimension on the ballistic performance of plain weave fabric

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Defence Technology(防务技术) 2025年第1期43卷 288-303页

作者： Kaiying Wang Xuan Zhou Wenke Ren Yiding Wu Yilei Yu Yi Zhou Lizhi Xu Guangfa Gao School of Mechanical Engineering Nanjing University of Science and TechnologyNanjing210094China State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile UniversityWuhan430079China

Aramid fibers,due to their relatively high inter-yarn friction,high strength,high modulus,and other characteristics,have become a typical representative of flexible anti-ballistic materials in modern *** research on the anti-penetration of aramid fabrics mostly focuses unilaterally on the structure and performance of aramid fabrics or the shape and size of projectiles,with fewer studies on the coupled effect of both on ballistic *** study analyzes how the coupling relationship(or size effect)between the projectile and fiber bundle dimensions affects the fabric ballistic performance from a mesoscopic scale *** plain weave aramid fabric as the research object,considering different diameter projectiles,through a large number of ballistic impact tests and numerical simulations,parameters such as ballistic limit velocity,average energy absorption of fabric,and specific energy absorption ratio(average energy absorption of fabric divided by projectile cross-sectional area)are obtained for ballistic performance *** influence law of projectile size on the ballistic performance of high-performance fabrics is as follows:The relative range of fitted ballistic limit velocity at different target positions gradually decreases and then stabilizes as the projectile diameter increases,indicating that the fabric structure effect gradually disappears at a projectile diameter of 12 mm;The average ballistic limit velocity at three impact positions,P1,P2,and P3,provides the corresponding ballistic limit velocity for 1000D aramid fabric,which increases with projectile diameter but the rate of increase slows down at an inflection point,which in this study occurs where the fabric structure effect nearly disappears at a projectile diameter of 12 mm;The energy absorption ratio increases and then decreases as the projectile diameter increases from 4 mm to 20 mm,reaching a peak at the diameter of 12 mm due to the gradual disappearance of the fabri

关键词： Plain weave fabric Ballistic performance Aramid fiber Projectile size Ballistic experiment

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Electrospun carbon nanofiber-supported V_(2)O_(3) with enriched oxygen vacancies as a free-standing high-rate anode for an all-vanadium-based full battery

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Carbon Energy 2024年第9期6卷 15-28页

作者： Qi Lai Bincen Yin Yu Dou Qing Zhang Yunhai Zhu Yingkui Yang School of Chemistry and Materials Science South-Central Minzu UniversityWuhanChina State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile UniversityWuhanChina

Synergistic regulation of hierarchical nanostructures and defect engineering is effective in accelerating electron and ion transport for metal oxide ***,carbon nanofiber-supported V_(2)O_(3) with enriched oxygen vacancies(OV-V_(2)O_(3)@CNF)was fabricated using the facile electrospinning method,followed by thermal *** from the traditional particles embedded within carbon nanofibers or irregularly distributed between carbon nanofibers,the free-standing OV-V_(2)O_(3)@CNF allows for V_(2)O_(3) nanosheets to grow vertically on one-dimensional(1D)carbon nanofibers,enabling abundant active sites,shortened ion diffusion pathway,continuous electron transport,and robust structural ***,density functional theory calculations confirmed that the oxygen vacancies can promote intrinsic electron conductivity and reduce ion diffusion energy ***,the OV-V_(2)O_(3)@CNF anode delivers a large reversible capacity of 812 mAh g^(-1) at 0.1 A g^(-1),superior rate capability(405 mAh g^(-1) at 5 A g^(-1)),and long cycle life(378 mAh g^(-1) at 5 A g^(-1) after 1000 cycles).Moreover,an all-vanadium full battery(V2O5//OV-V_(2)O_(3)@CNF)was assembled using an OV-V_(2)O_(3)@CNF anode and a V2O5 cathode,which outputs a working voltage of 2.5 V with high energy density and power density,suggesting promising practical *** work offers fresh perspectives on constructing hierarchical 1D nanofiber electrodes by combining defect engineering and electrospinning technology.

关键词： electrospun electrode full battery oxygen vacancy vanadium trioxide

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Superior Anodic Lithium Storage in Core–Shell Heterostructures Composed of Carbon Nanotubes and Schiff-Base Covalent Organic Frameworks

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Energy & Environmental materials 2024年第6期7卷 150-157页

作者： Nan Jiang Mengpei Qi Yalong Jiang Yin Fan Shiwei Jin Yingkui Yang School of Chemistry and Materials Science South-Central Minzu UniversityWuhan 430074China State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile UniversityWuhan 430200China

Covalent organic frameworks(COFs)after undergoing the superlithiation process promise high-capacity anodes while suffering from sluggish reaction kinetics and low electrochemical utilization of redox-active ***,integrating carbon nanotubes(CNTs)with imine-linked covalent organic frameworks(COFs)was rationally executed by in-situ Schiff-base condensation between 1,1′-biphenyl]-3,3′,5,5′-tetracarbaldehyde and 1,4-diaminobenzene in the presence of CNTs to produce core–shell heterostructured composites(CNT@COF).Accordingly,the redox-active shell of COF nanoparticles around one-dimensional conductive CNTs synergistically creates robust three-dimensional hybrid architectures with high specific surface area,thus promoting electron transport and affording abundant active functional groups accessible for electrochemical utilization throughout the whole ***,upon the full activation with a superlithiation process,the as-fabricated CNT@COF anode achieves a specific capacity of 2324 mAh g^(−1),which is the highest specific capacity among organic electrode materials reported so ***,the superior rate capability and excellent cycling stability are also *** redox reaction mechanisms for the COF moiety were further revealed by Fourier-transform infrared spectroscopy in conjunction with X-ray photoelectron spectroscopy,involving the reversible redox reactions between lithium ions and C=N groups and gradual electrochemical activation of the unsaturated C=C bonds within COFs.

关键词： heterostructured anode core-shell nanostructures carbon nanotubes polymeric Schiff-bases covalent organic frameworks

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Multi-scale structure engineering of covalent organic framework for electrochemical charge storage

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SusMat 2024年第1期4卷 4-33页

作者： Xiaofang Zhang Fangling Li Shuangqiao Yang Baiqi Song Richu Luo Rui Xiong Weilin Xu State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile UniversityWuhanChina State Key Laboratory of Polymer Materials Engineering Polymer Research Institute at Sichuan UniversityChengduChina

Covalent organic frameworks(COFs),which are constructed by linking organic building blocks via dynamic covalent bonds,are newly emerged and burgeoning crystalline porous copolymers with features including programmable topological architecture,pre-designable periodic skeleton,well-defined micro-/meso-pore,large specific surface area,and customizable electroactive *** benefits make COFs as promising candidates for advanced electrochemical energy ***,for now,structure engineering of COFs from multiscale aspects has been conducted to enable optimal overall electrochemical performance in terms of structure durability,electrical conductivity,redox activity,and charge *** this review,we give a fundamental and insightful study on the correlations between multi-scale structure engineering and eventual electrochemical properties of COFs,started with introducing their basic chemistries and charge storage *** careful discussion on the significant achievements in structure engineering of COFs from linkages,redox sites,polygon skeleton,crystal nanostructures,and composite microstructures,and further their effects on the electrochemical behavior of COFs are ***,the timely cutting-edge perspectives and in-depth insights into COFbased electrodematerials to rationally screen their electrochemical behaviors for addressing future challenges and implementing electrochemical energy storage applications are proposed.

关键词： covalent organic frameworks electrochemical energy storage multi-scale structure engineering structure-performance correlation

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Activated carbon fiber mediates efficient activation of peroxymonosulfate systems:Modulation of manganese oxides and cycling of manganese species

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Chinese Chemical Letters 2023年第12期34卷 275-280页

作者： Lixi Xiao Yuwei Deng Huo Zhou Fengjun Lu Chong Ke Yuxuan Ye Xuanyuan Pei Dongsheng Xia Fei Pan School of Environmental Engineering Wuhan Textile UniversityWuhan 430200China State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile UniversityWuhan 430200China

Manganese oxides show a strong catalytic activity in the peroxymonosulfate(PMS)advanced oxidation process but have poor chemical stability and a propensity to cause the aggregation of ***,a novel composite material(abbreviated as MnO_(x)@ACF)was synthesized,characterized,and *** carbon fiber(ACF)was selected as a carrier,which modulated the composition of manganese *** results showed that MnO_(x)@ACF had a strong adsorption ability and successfully activated PMS to degrade tetracycline hydrochloride(TCH),with a removal eficiency of 89.0%in 30 *** factors such as pH and coexisting ion species were investigated,and a five-cycle test was *** oxygen(^(1)O_(2))was predominated in the MnO_(x)@ACF/PMS system.A possible explanatory pathway of TCH was proposed based on the results of the high performance liquid chromatography-mass *** was concluded that this study provides a novel insight into the activation of PMS for the degradation of organic matter by carbon-loaded multivalent manganese oxides.

关键词： Activated carbon fiber Mn_(3)O_(4) MnO_(2) Singlet oxygen

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Recent Advances in Fibrous materials for Interfacial Solar Steam Generation

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advanced Fiber materials 2023年第3期5卷 791-818页

作者： Can Ge Duo Xu Heng Du Ze Chen Jingyu Chen Zhuoer Shen Weilin Xu Qian Zhang Jian Fang College of Textile and Clothing Engineering Soochow UniversitySuzhou 215123China State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile UniversityWuhan 430200China

The scarcity of fresh water resources has become a serious issue hindering the sustainable development of modern *** interfacial solar steam generation(ISSG)system that produces heat on material surface through photothermal conversion for desalination has been demonstrated as a promising candidate for practical *** materials with unique flexibility,durability,processability,practicability,and multifunctionality have attracted considerable attention in the ISSG *** this review,the basics of fibrous materials,such as their classification,manufacturing methods and flexible fibrous structure,are firstly ***,the outstanding properties of fibrous materials on different dimensions are demonstrated,as well as the versatile morphologies and structures that allow fibrous materials to carry out different roles in ***,the practicability and multifunctionality of fibrous materials are illustrated in detail by combining specific cases to show their promising potential in practical ISSG ***,existing challenges and future opportunities of fibrous material-based ISSG systems are discussed.

关键词： Fibrous material Interfacial solar steam generation Desalination Photothermal conversion

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Parametric study on the ballistic performance of seamed woven fabrics

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Defence Technology（防务技术） 2023年第6期24卷 173-189页

作者： Hang Li Rui Zhang Shengnan Min Yi Zhou Jiuxiao Sun State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile UniversityChina School of Materials Design&Engineering Beijing Institute of Fashion Technology100029BeijingChina

The ballistic perforation response of composite fabrics made by combining plain weaves with seaming technology is reported and compared with conventional unseamed plain *** effect of the seaming technique on the ballistic resistance of aramid plain fabrics is investigated by varying the seaming *** ballistic experiment uses 8 mm diameter spherical projectiles to impact different fabric sample targets with velocities of 230 m/s and 400 m/*** ballistic performance of seamed and unseamed fabrics is characterized by the specific energy absorption(SEA)values of the *** results show that the seamed fabric has a better energy absorption capacity than the unseamed fabric,e.g.,the SEA of sample 5(seaming lines on every four yarns in a single-ply fabric system)is 135%of sample 1(plain weave without thread seaming).In the single-layer system,the effect of the seaming technique on the energy absorption of the fabric in significant when considering seaming density,seaming orientation,seaming distance,and seaming material on the plain fabric;In addition,it is found that in multi-layer systems,seamed panels(e.g.,sample 7)exhibit better ballistic performance than multi-layer fabrics(e.g.,sample 2),and the specific energy absorption of sample 7 is approximately 156%and 200%of sample 6 and sample 2,***,the energy absorption of the fabric decreases with the increase of impact velocity,which is related to the energy absorption mechanism of the soft fabric system at high impact *** yarn pull-out tests shows that the constraint provided by the seaming thread increases the friction between the fabric-forming ***,when the constraint exceeds a certain level,it is detrimental to the energy absorption of the fabric,which may be due to the overconstraint of yarn mobility.

关键词： Fabric Ballistic performance Seaming technology Energy absorption

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Self-actuating protection mechanisms for safer lithium-ion batteries

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Journal of Energy Chemistry 2024年第7期94卷 181-198页

作者： Yang Luo Chunchun Sang Kehan Le Hao Chen Hui Li Xinping Ai Hubei Key Lab of Electrochemical Power Sources College of Chemistry&Molecular ScienceWuhan UniversityWuhan 430072HubeiChina state Key Laboratory of New Textile Materials&Advanced Processing Technologies Wuhan Textile UniversityWuhan 430200HubeiChina

Safety issue is still a problem nowadays for the large-scale application of lithium-ion batteries(LIBs)in electric vehicles and energy storage *** unsafe behaviors of LIBs arise from the thermal run-away,which is intrinsically triggered by the overcharging and *** improve the safety of LIBs,various protection strategies based on self-actuating reaction control mechanisms(SRCMs)have been proposed,including redox shuttle,polymerizable monomer additive,potential-sensitive separator,thermal shutdown separator,positive-temperature-coefficient electrode,thermally polymerizable addi-tive,and reversible thermal phase transition *** build-in protection mechanisms,these meth-ods can sensitively detect either the temperature change inside battery or the potential change of the electrode,and spontaneously shut down the electrode reaction at risky conditions,thus preventing the battery from going into thermal *** their advantages in enhancing the intrinsic safety of LIBs,this paper overviews the research progresses of SRCMs after a brief introduction of thermal runaway mechanism and limitations of conventional thermal runaway mitigating *** importantly,the current states and issues,key challenges,and future developing trends of SRCTs are also discussed and outlined from the viewpoint of practical application,aiming at providing insights and guidance for developing more effective SRCMs for LIBs.

关键词： Li-ion battery Safety Thermal runaway Thermal protection Overcharge protection

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Preparation of Silica Nanosphere with Vertical Pore and Its Application in Oil-water Separation

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Journal of Wuhan University of Technology(materials Science) 2023年第2期38卷 299-303页

作者： FAN Hui CAI Yun BAI Ping YUAN Qinwen WANG Dong CHEN Yuanli State Key Laboratory of New Textile Materials and Advanced Processing Technologies of China Key Laboratory of Textile Fiber and ProductsMinistry of EducationHubei International Scientific and Technological Cooperation Base of Intelligent Textile Materials&ApplicationWuhan Textile UniversityWuhan430200China

Uniform monodispersed mesoporous silica nanospheres with vertical pores were successfully synthesized using chiral amphiphilic small molecule L-16Ala5PyClO4and solvents as dual templates via solgel *** morphologies and pore sizes of silicas are adjustable by changing the type and amount of solvents in the reaction *** the increase of the organic solvent content,the morphologies of the obtained silica changed from nanospheres with vertical pore structures to nanosheets *** 1 mL of benzene,cyclohexane or toluene were used as solvents,only silica nanospheres were obtained,the BET surface areas of silica nanospheres reached 600.7,669.5,and 560.8 m^(2)/g,*** pore sizes were 3.51,3.54,and 3.46 nm,***,these ordered silica nanospheres/poly(vinyl alcohol-co-ethylene)(PVAco-PE)nanofiber membranes have high separation efficiencies(>99%)for n-hexane/water mixtures.

关键词： sol-gel preparation mesoporous silica nanosphere oil-water separation

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Advances in colored carbon-based fiber materials and their emerging applications

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SusMat 2024年第6期4卷 191-223页

作者： Yu Zhang Yuxin Luo Mengqi Wang Tonghe Xing Annan He Zhiyu Huang Zhicheng Shi Sijie Qiao Aixin Tong Jie Bai Shichao Zhao Fengxiang Chen Weilin Xu State Key Laboratory of New Textile Materials and Advanced Processing Technologies Hubei Key Laboratory of Digital Textile Equipment and National Local Joint Laboratory for Advanced Textile Processing and Clean ProductionWuhan Textile UniversityWuhanChina College of Textiles and Clothing Qingdao UniversityQingdaoChina China Textile Engineering Society BeijingChina State Key Laboratory of Coal Conversion CAS Key Laboratory of Carbon Materials and Analytical Instrumentation CenterInstitute of Coal ChemistryChinese Academy of SciencesTaiyuanChina

Carbon-based fiber materials are widely used in aerospace,military,and electronics owing to their outstanding comprehensive ***,the high degree of crystallization and chemical inertness of their surfaces impede the coloring of such materials by traditional dyeing methods,thereby limiting their application in a broader *** advanced micro/nano-processing technology for colored carbon-based fiber materials has become a growing interdisciplinary research area in recent ***,this review comprehensively discusses the structure‒color‒function relationships of carbon-based fiber *** structure of carbon-based fiber materials and their properties responsible for challenges in coloring by traditional dyeing methods are ***,the color-generating mechanisms underlying the display of structural colors by living organisms due to fundamental optical phenomena,including thin/multilayer-film interference,diffraction grating,scattering,and photonic crystals,are ***,recent progress in bio-inspirated colored carbon-based fiber materials prepared via advanced micro/nanoscale manufacturing strategies is *** addition,emerging applications of colored carbon-based fiber materials in various fields are ***,the possible challenges and future directions for the design,large-scale production,and application of colored carbon-based fibermaterials and their composites are discussed,aiming to promote the material design of innovative next-generation systems and research in the advanced material and related engineering fields.

关键词： bio-inspire structural color colored carbon-based fiber materials emerging applications micro/nanoscale manufacturing strategies

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