Composites Part B: Engineering最新文献

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Enhancing AFP manufacturing with AI: Defects forecasting and classification 人工智能增强AFP制造:缺陷预测与分类
IF 12.7 1区 材料科学
Composites Part B: Engineering Pub Date : 2025-05-28 DOI: 10.1016/j.compositesb.2025.112655
Anatoly Koptelov, Bassam El Said, Iryna Tretiak
{"title":"Enhancing AFP manufacturing with AI: Defects forecasting and classification","authors":"Anatoly Koptelov,&nbsp;Bassam El Said,&nbsp;Iryna Tretiak","doi":"10.1016/j.compositesb.2025.112655","DOIUrl":"10.1016/j.compositesb.2025.112655","url":null,"abstract":"<div><div>In this work, a novel AI-driven framework for real-time defect prediction and classification for proactive quality control is introduced. By integrating autoencoders, Long Short-Term Memory (LSTM) networks, and Convolutional Neural Networks (CNNs) with the laser profilometry data acquisition into a joint pipeline, the proposed system is able to forecast defects in automated fibre placement tapes before they fully develop, enabling early corrective actions to reduce material waste and rework time. Experimental validation demonstrated the framework's ability to predict twist defects up to 5 mm before the defect appears under the sensor, and pucker defects 2 mm with an overall 94 % accuracy, offering a substantial advantage over conventional AFP defect sensors. The proposed system represents a step towards predictive defect management in AFP, enhancing efficiency of manufacturing and final product reliability.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"304 ","pages":"Article 112655"},"PeriodicalIF":12.7,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144178605","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
High mechanical interlocking and hydrogen bonding based carboxymethyl cellulose/SiO2 composite structures for interfacial bonding of reinforced polyimide fiber/EPDM composites 用于增强聚酰亚胺纤维/三元乙丙橡胶复合材料界面粘合的高机械联锁和氢键基羧甲基纤维素/二氧化硅复合结构
IF 12.7 1区 材料科学
Composites Part B: Engineering Pub Date : 2025-05-25 DOI: 10.1016/j.compositesb.2025.112652
Youquan Ling , Junjie Liu , Bolin Xiao , Hui Jin , Luxiang Zhao , Yanjiang Bai , Xi Zhang , Mei Liang , Yang Chen , Huawei Zou
{"title":"High mechanical interlocking and hydrogen bonding based carboxymethyl cellulose/SiO2 composite structures for interfacial bonding of reinforced polyimide fiber/EPDM composites","authors":"Youquan Ling ,&nbsp;Junjie Liu ,&nbsp;Bolin Xiao ,&nbsp;Hui Jin ,&nbsp;Luxiang Zhao ,&nbsp;Yanjiang Bai ,&nbsp;Xi Zhang ,&nbsp;Mei Liang ,&nbsp;Yang Chen ,&nbsp;Huawei Zou","doi":"10.1016/j.compositesb.2025.112652","DOIUrl":"10.1016/j.compositesb.2025.112652","url":null,"abstract":"<div><div>In this study, carboxymethyl cellulose (CMC), a polymer abundant in hydroxyl and carboxyl groups, was employed as an interfacial layer between polyimide fibers and EPDM rubber. The formation of hydrogen bonds between CMC and the polyimide fibers facilitated a robust encapsulation of CMC on the fiber surface. Additionally, a greater number of SiO<sub>2</sub> nanoparticles were adsorbed onto the CMC surface through hydrogen bonding and condensation reactions, significantly enhancing the fiber's surface roughness and the matrix's wettability. This strong mechanical interlocking structure markedly improved the interfacial adhesion and mechanical properties of the composites. Specifically, the H pull-out force, tensile strength, and elongation at break increased by 84.8 %, 89 %, and 45 %, respectively, compared to the control samples. In-situ electron microscopy further confirmed that the reinforced interface effectively inhibited crack propagation along the interface. Low-field NMR analysis revealed that the enhanced interfacial bonding restricted the mobility of rubber molecules, contributing to higher strains and stresses during the orientation hardening phase under tension. Moreover, the improved interfacial adhesion and the incorporation of SiO<sub>2</sub> within the interfacial layer also enhanced the ablative resistance and thermal insulation properties. These findings demonstrate that the CMC/SiO<sub>2</sub> encapsulation strategy represents an environmentally friendly, rapid, and efficient interfacial modification method for polyimide fiber-reinforced EPDM insulation materials.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"304 ","pages":"Article 112652"},"PeriodicalIF":12.7,"publicationDate":"2025-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144154353","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mechanism analysis of the effects of hygrothermal aging and random vibration on the performance of composite T-joints 湿热老化和随机振动对复合材料t形接头性能影响的机理分析
IF 12.7 1区 材料科学
Composites Part B: Engineering Pub Date : 2025-05-24 DOI: 10.1016/j.compositesb.2025.112651
Guozhi Zhao, Qize Lyu, Puhui Chen
{"title":"Mechanism analysis of the effects of hygrothermal aging and random vibration on the performance of composite T-joints","authors":"Guozhi Zhao,&nbsp;Qize Lyu,&nbsp;Puhui Chen","doi":"10.1016/j.compositesb.2025.112651","DOIUrl":"10.1016/j.compositesb.2025.112651","url":null,"abstract":"<div><div>Compared to investigations on the mechanical properties of composites at room temperature, this paper explored the effects of T-joint specimen, prepared with the room temperature curing paste adhesive J-349-3, on the pull-out and bending properties after exposure to both hygrothermal aging (HA) and random vibration (RV). The quasi-static pull-out and bending tests were carried out on the baseline specimen, the HA specimen, the RV specimen and the HA/RV specimen. The damage morphology, ultimate load and stiffness of the specimens were compared and analyzed, and scanning electron microscope (SEM) was used to reveal the influence mechanisms of HA and RV on the specimens. For the pull-out specimens, the ultimate load of the HA specimens increased by 14.4 %, while the ultimate load of the RV and HA/RV specimens decreased by 6.0 % and 19.9 %, respectively, compared to the baseline specimens. For the bending specimen, the environmental factors had a smaller effect (&lt;10 %) on the ultimate load when the specimen was subjected to environmental factors. Compared to the performance of the composite laminate, the performance of the adhesive interface was more significantly influenced by the application of HA and RV. Additionally, there was a synergistic effect mechanism between the two combinations of HA treatment and RV on the effect of pull-out properties. Finally, the damage initiation and evolution of the specimen were further analyzed by the finite element model, and the validity of the model was verified by comparing the test results.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"304 ","pages":"Article 112651"},"PeriodicalIF":12.7,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144138380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Torrefied hemp fiber as a sustainable reinforcement for biodegradable PHA composites: enhancing interfacial compatibility and environmental stability 碳化大麻纤维作为可生物降解PHA复合材料的可持续增强材料:增强界面相容性和环境稳定性
IF 12.7 1区 材料科学
Composites Part B: Engineering Pub Date : 2025-05-24 DOI: 10.1016/j.compositesb.2025.112653
Hyoseung Lim , Seungoh Jung , Seojin Kim , Jungkyu Kim , Seon-Gyeong Kim , Jiwon Seo , In-Gyu Choi , Hyo Won Kwak
{"title":"Torrefied hemp fiber as a sustainable reinforcement for biodegradable PHA composites: enhancing interfacial compatibility and environmental stability","authors":"Hyoseung Lim ,&nbsp;Seungoh Jung ,&nbsp;Seojin Kim ,&nbsp;Jungkyu Kim ,&nbsp;Seon-Gyeong Kim ,&nbsp;Jiwon Seo ,&nbsp;In-Gyu Choi ,&nbsp;Hyo Won Kwak","doi":"10.1016/j.compositesb.2025.112653","DOIUrl":"10.1016/j.compositesb.2025.112653","url":null,"abstract":"<div><div>Torrefaction is an effective thermochemical process for modifying the properties of lignocellulosic fibers, enhancing their compatibility with polymer matrices. Herein, the effects of wet torrefaction on the surface chemistry of hemp fibers (HFs) and their compatibility with the polyhydroxyalkanoate (PHA) polymer matrix were investigated. Results showed that torrefaction considerably changed the physicochemical properties of HF, leading to improvements in hydrophobicity, mechanical reinforcement, and thermal stability. Increasing the torrefaction temperature resulted in carbon enrichment and crystallinity enhancement while reducing hemicellulose content and volatile components. These modifications contributed to increased fiber rigidity, enhanced interfacial compatibility with the PHA matrix, and improved mechanical properties of the composite. The optimal torrefaction temperature was identified at 200 °C, where fiber individualization and surface roughness were maximized, leading to superior interfacial bonding with PHA. The resulting torrefied HF–reinforced composite, PHA/HF-200, exhibited a significant increase in tensile modulus (211 %), tensile strength (55 %), flexural modulus (361 %), and flexural strength (329 %) compared to neat PHA. In addition, torrefaction enhanced the moisture resistance of composites, reducing water absorption and improving dimensional stability under humid conditions. Despite delayed initial biodegradation due to increased hydrophobicity, complete biodegradation was achieved within 40 days, confirming the environmental sustainability of the PHA/HF-200 composite.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"304 ","pages":"Article 112653"},"PeriodicalIF":12.7,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144167638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A novel experimental approach to determine mode I traction–separation relationship for bonded composites-to-metal DCB joints: A back face strain derived method 一种确定复合材料-金属DCB连接I型牵引-分离关系的新实验方法:背面应变推导法
IF 12.7 1区 材料科学
Composites Part B: Engineering Pub Date : 2025-05-24 DOI: 10.1016/j.compositesb.2025.112610
Shijie Zhang , Jiacheng Liu , Xudan Yao , Jian Yang , Yu’e Ma , Wandong Wang
{"title":"A novel experimental approach to determine mode I traction–separation relationship for bonded composites-to-metal DCB joints: A back face strain derived method","authors":"Shijie Zhang ,&nbsp;Jiacheng Liu ,&nbsp;Xudan Yao ,&nbsp;Jian Yang ,&nbsp;Yu’e Ma ,&nbsp;Wandong Wang","doi":"10.1016/j.compositesb.2025.112610","DOIUrl":"10.1016/j.compositesb.2025.112610","url":null,"abstract":"<div><div>This paper proposes a novel experimental approach to determine the mode I traction–separation relationship (TSR) and fracture toughness for bonded composite-to-metal double cantilever beam (DCB) joints. CFRP-to-Ti DCB joints, equipped with distributed optical fiber sensors (DOFS) on their back faces, were deliberately designed and tested to validate the proposed method. The back face strain distributions measured using DOFS were utilized to derive the bonded interface TSR based on Euler–Bernoulli beam theory. The TSR derived from the proposed methodology demonstrated strong agreement with that from the established direct method. In addition to determining the TSR, this approach provides extensive insights into fracture behavior, including crack length measurement, cohesive length, and cohesive stress distributions. Moreover, the method is easy to implement in laboratory settings and holds promise for applications under extreme loading conditions.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"304 ","pages":"Article 112610"},"PeriodicalIF":12.7,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144131017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Constructing an expeditious and durable composite as an air electrode of solid oxide cells through synergistic phase transformation and phase segregation engineering 通过协同相变和相分离工程,构建一种快速耐用的复合材料作为固体氧化物电池的空气电极
IF 12.7 1区 材料科学
Composites Part B: Engineering Pub Date : 2025-05-23 DOI: 10.1016/j.compositesb.2025.112650
Hao Qiu , Jing Zhao , Guoliang Chen , Zihao Xie , Wenzhen Tu , Mingzhuang Liang , Huangang Shi , Beibei Xiao , Wei Wang , Chao Su , Lei Ge
{"title":"Constructing an expeditious and durable composite as an air electrode of solid oxide cells through synergistic phase transformation and phase segregation engineering","authors":"Hao Qiu ,&nbsp;Jing Zhao ,&nbsp;Guoliang Chen ,&nbsp;Zihao Xie ,&nbsp;Wenzhen Tu ,&nbsp;Mingzhuang Liang ,&nbsp;Huangang Shi ,&nbsp;Beibei Xiao ,&nbsp;Wei Wang ,&nbsp;Chao Su ,&nbsp;Lei Ge","doi":"10.1016/j.compositesb.2025.112650","DOIUrl":"10.1016/j.compositesb.2025.112650","url":null,"abstract":"<div><div>The sluggish catalytic activity of iron-rich perovskite-based air electrodes at low temperatures (&lt;650 °C) is a common problem faced by solid oxide cells (SOCs). Herein, an expeditious and durable iron-rich, multifunctional, composite material is reported as an outstanding air electrode for SOCs. Such a composite consists of a dominant cubic single perovskite (SP) phase, SrFe<sub>1-x</sub>(Ta,Nb)<sub>x</sub>O<sub>3−δ</sub>, and a minor oxygen vacancy-rich double perovskite (DP) phase, Sr<sub>2</sub>FeNbO<sub>6−δ</sub>. The incorporation of pentavalent Ta and Nb effectively inhibits the formation of tetragonal SP and induces phase transformation to a cubic SP with high symmetry, while the <em>in-situ</em> separated DP phase synergistically boosts the performance of oxygen activation. Such multiple benefits result in the generation of an oxygen-ion conductor-based solid oxide fuel cell (O-SOFC) with the developed composite electrode that yields a superb maximum power density (P<sub>max</sub>) of 1259 mW cm<sup>−2</sup> at 600 °C, ∼2.1 times that of an O-SOFC with SrFeO<sub>3−δ</sub> parent electrode (595 mW cm<sup>−2</sup>). A reversible protonic ceramic cell (R-PCC) with such composite air electrode delivers a remarkable electrochemical performance, <em>e.g.,</em> a P<sub>max</sub> of 844 mW cm<sup>−2</sup> and an electrolysis current density of −957 mA cm<sup>−2</sup> @ 1.3 V at 650 °C. More attractively, the resulting cell exhibits an outstanding operating endurance of 500 h in fuel cell mode and 210 h in cycle mode (<em>i.e.,</em> alternating between fuel cell and electrolysis cell modes).</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"304 ","pages":"Article 112650"},"PeriodicalIF":12.7,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144167639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The effect of hydrothermal ageing on the interfacial bonding of E-glass fibre/epoxy in quasi-static and fatigue loading 热液老化对e -玻璃纤维/环氧树脂在准静态和疲劳载荷下界面结合的影响
IF 12.7 1区 材料科学
Composites Part B: Engineering Pub Date : 2025-05-23 DOI: 10.1016/j.compositesb.2025.112649
Mehdi Nikforooz , Lode Daelemans , Karen De Clerck , Wim Van Paepegem
{"title":"The effect of hydrothermal ageing on the interfacial bonding of E-glass fibre/epoxy in quasi-static and fatigue loading","authors":"Mehdi Nikforooz ,&nbsp;Lode Daelemans ,&nbsp;Karen De Clerck ,&nbsp;Wim Van Paepegem","doi":"10.1016/j.compositesb.2025.112649","DOIUrl":"10.1016/j.compositesb.2025.112649","url":null,"abstract":"<div><div>Hydrothermal ageing can have different effects on the integrity of E-glass fibres and their sizing. In this study, the effect of hydrothermal ageing for different time periods was examined on the tensile strength of E-glass fibres and the interfacial properties of E-glass/epoxy in quasi-static and fatigue loading. For this purpose, single fibre tensile tests, single fibre fragmentation tests and single short fibre composite tests were performed. In particular, quasi-static and fatigue tests were conducted on innovative single short fibre composite specimens to capture the initiation and propagation of debonding cracks. Consequently, hydrothermal ageing had an insignificant effect on the interfacial strength of E-glass/epoxy, whereas it resulted in a detrimental impact on the mixed mode debonding propagation. In this regard, as the fibre off-axis angle approached 90֯, substantially longer debonding cracks were captured in aged E-glass/epoxy specimens compared to virgin E-glass/epoxy specimens in both quasi-static and fatigue loading.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"304 ","pages":"Article 112649"},"PeriodicalIF":12.7,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144135204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
TPP-SiO2 Aerogel synergistic modification of polyurea composites towards mechanical shock wave mitigation and flame retardancy TPP-SiO2气凝胶协同改性聚脲复合材料对机械冲击波的减缓和阻燃作用
IF 12.7 1区 材料科学
Composites Part B: Engineering Pub Date : 2025-05-22 DOI: 10.1016/j.compositesb.2025.112641
Chuanyi Liu , Wenlong Xu , Cheng Wang , Dong Ma , Zhihui Zeng , Na Wu
{"title":"TPP-SiO2 Aerogel synergistic modification of polyurea composites towards mechanical shock wave mitigation and flame retardancy","authors":"Chuanyi Liu ,&nbsp;Wenlong Xu ,&nbsp;Cheng Wang ,&nbsp;Dong Ma ,&nbsp;Zhihui Zeng ,&nbsp;Na Wu","doi":"10.1016/j.compositesb.2025.112641","DOIUrl":"10.1016/j.compositesb.2025.112641","url":null,"abstract":"<div><div>In industrial explosion accidents, mechanical shock waves and flame thermal radiation are the main destructive factors, posing serious threat to life and property. Current designs mainly focus on one of these factors, so it is necessary to develop protective materials against both destructive factors. TPP (Triphenyl phosphate) - SiO<sub>2</sub> Aerogel synergistically modified polyurea composites were developed in this work, which process excellent mechanical shock wave mitigation performance and enhanced flame retardancy. The mechanical shock wave mitigation experiments were conducted on Multi-purpose Shock Cannon (MSC), Human Tissue Equivalent Target (HTET) and full-scale human head model, which comprehensively evaluated the protective performance of polyurea composites for the human body. The flame retardancy was assessed through thermal conductivity, LOI, thermal gravimetric and small flame experiments. The combustion residue was analyzed using SEM, EDS, Raman spectroscopy, and XPS technologies, revealing flame retardant mechanism of TPP-SiO<sub>2</sub> Aerogel synergistically modified polyurea composites. The results showed thatTPP-SiO<sub>2</sub> Aerogel synergistically modified polyurea composites achieved the highest mitigation ratios of overpressure peak and acceleration peak at 13.20 % and 60.87 %, respectively, superior to those of fiber-enhanced polymer composites (Fiber-PE, Fiber-PA6, Fiber-ASA), single filler polyurea, wood and PLA plastic. The flame retardancy was effectively improved, with the highest LOI reaching 24.9 %, far higher than that of pure polyurea (19.6 %). It particularly enhanced the carbonization performance of polyurea composites during combustion, eliminating burning material dropping phenomenon. The thermal insulation performance was also elevated, with the lowest thermal conductivity reduced by 58.6 % compared to pure polyurea.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"304 ","pages":"Article 112641"},"PeriodicalIF":12.7,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144204153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Introduction of controllable 3D deformation to electrospun fibers using 3D printing 介绍了利用3D打印技术控制电纺纤维的三维变形
IF 12.7 1区 材料科学
Composites Part B: Engineering Pub Date : 2025-05-22 DOI: 10.1016/j.compositesb.2025.112638
Jeong Hwa Kim , Dong Wook Sin , Young Hun Jeong
{"title":"Introduction of controllable 3D deformation to electrospun fibers using 3D printing","authors":"Jeong Hwa Kim ,&nbsp;Dong Wook Sin ,&nbsp;Young Hun Jeong","doi":"10.1016/j.compositesb.2025.112638","DOIUrl":"10.1016/j.compositesb.2025.112638","url":null,"abstract":"<div><div>Recently, electrospun polymeric fibers and fibrous membranes have received considerable attention from various fields, including biomedical, electrical, environmental, and energy engineering, because of lots of advantages. However, electrospun fibers have significant limitations in terms of structural properties, being largely constrained to thin membranes (essentially two-dimensional structures). Achieving three-dimensional structural properties, especially regarding motion or deformation, remains a significant challenge. In this study, we present a novel fibrous membrane with controllable three-dimensional deformation capabilities. To induce a specific deformation, namely a convex surface, a polymeric framework was fabricated using melt extrusion-based printing on electrospun fibers. This framework provided both deformation guidance toward the desired shape and mechanical support for the electrospun fibers. The mechanical properties and deformation behavior of the membrane were experimentally evaluated using tensile tests, demonstrating successful production of the intended deformation in the fabricated membranes. Furthermore, the membranes exhibited excellent cell viability and facilitated topographical guidance for cell attachment and culture, as confirmed by cell culture tests using fibroblast and myoblast cell lines.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"304 ","pages":"Article 112638"},"PeriodicalIF":12.7,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144190484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Enhanced Ni–Co redox dynamics in dual-SDA engineered ZIF-67 derivatives for high-performance supercapacitors: Insights from operando X-ray spectroscopy 用于高性能超级电容器的双sda工程ZIF-67衍生物中增强的Ni-Co氧化还原动力学:来自operando x射线光谱的见解
IF 12.7 1区 材料科学
Composites Part B: Engineering Pub Date : 2025-05-22 DOI: 10.1016/j.compositesb.2025.112646
Shen-Fa Dung , Hamed Cheshideh , Pin-Yan Lee , Kun-Hua Tu , Hung-Ming Chen , Kuo-Chuan Ho , Yung-Fu Wu , Hsiao-Chien Chen , Lu-Yin Lin
{"title":"Enhanced Ni–Co redox dynamics in dual-SDA engineered ZIF-67 derivatives for high-performance supercapacitors: Insights from operando X-ray spectroscopy","authors":"Shen-Fa Dung ,&nbsp;Hamed Cheshideh ,&nbsp;Pin-Yan Lee ,&nbsp;Kun-Hua Tu ,&nbsp;Hung-Ming Chen ,&nbsp;Kuo-Chuan Ho ,&nbsp;Yung-Fu Wu ,&nbsp;Hsiao-Chien Chen ,&nbsp;Lu-Yin Lin","doi":"10.1016/j.compositesb.2025.112646","DOIUrl":"10.1016/j.compositesb.2025.112646","url":null,"abstract":"<div><div>The development of high-performance supercapacitor electrodes demands novel synthesis methods to precisely control the properties of the active material. Here, we report an advanced one-step approach that employs ammonium hydrogen fluoride (NH<sub>4</sub>HF<sub>2</sub>) and ammonium tetrafluoroborate (NH<sub>4</sub>BF<sub>4</sub>) as dual-structure directing agents (SDAs) to develop novel zeolitic imidazolate framework-67 (ZIF-67) derivatives (ZIF-HB), with cobalt and nickel hydroxides as the main components. Modulation of the NH<sub>4</sub>HF<sub>2</sub>/NH<sub>4</sub>BF<sub>4</sub> molar ratio results in significant changes to the morphology, surface and electronic configurations, and electrochemical behavior. The optimized ZIF-HB (ZIF-HB12) electrode delivers impressive electrochemical performance, achieving a high specific capacitance (C<sub>F</sub>) of 1933.3 F/g at 20 mV/s. It is revealed from advanced structural analyses, including operando X-ray absorption spectroscopy that the redox reactivity and charge transfer dynamics are considerably boosted as a result of synergistic interactions between Co and Ni sites. An asymmetric supercapacitor (SC) assembled using ZIF-HB12 shows maximum energy density of 19 Wh/kg at 1143 W/kg, with a C<sub>F</sub> retention of 81.3% and a Coulombic efficiency of 97.2% after 10,000 cycles. This study highlights the effectiveness of dual-function SDAs in designing structurally robust, electrochemically active, and electronically optimized electrode materials for cutting-edge energy storage solutions.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"304 ","pages":"Article 112646"},"PeriodicalIF":12.7,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144123457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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