Composites Part B: Engineering最新文献_第3页

Insights into low-impurity activated carbon materials for supercapacitors with high-voltage and ultra-long cycle stability 高压超长循环稳定性超级电容器用低杂质活性炭材料的研究进展

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2025-06-25 DOI: 10.1016/j.compositesb.2025.112750

Kye-yeol Lee , Jae-Hyun Noh , Keon-Ho Kong , Sivaprakasam Radhakrishnan , Dong Min Sung , Taeuk Kim , Kidon Nam , Hye-Min Lee , Byoung-Suhk Kim

{"title":"Insights into low-impurity activated carbon materials for supercapacitors with high-voltage and ultra-long cycle stability","authors":"Kye-yeol Lee , Jae-Hyun Noh , Keon-Ho Kong , Sivaprakasam Radhakrishnan , Dong Min Sung , Taeuk Kim , Kidon Nam , Hye-Min Lee , Byoung-Suhk Kim","doi":"10.1016/j.compositesb.2025.112750","DOIUrl":"10.1016/j.compositesb.2025.112750","url":null,"abstract":"<div><div>Ensuring the long-term cycling stability of energy storage devices requires rigorous purity control of active carbon (AC) materials, making it a critical aspect of the manufacturing process. However, despite the presence of naturally occurring impurities in biomass-derived ACs, limited research has focused on effective purification methods for ACs used in supercapacitor applications. In this study, we present a simple hydrothermal purification method using only deionized (DI) water to remove both metallic and non-metallic impurities. By utilizing the enhanced self-ionization and high fluidity of water molecules under elevated hydrothermal conditions, this process achieved a higher purification efficiency (∼94.5 %) than conventional chemical purification methods (∼92.1 %), with minimal textural changes of the ACs. Quantitative analysis of 17 impurity elements via ICP-OES, along with excellent capacitance retention of 86.7 % after 100,000 cycles in an acetonitrile-based electrolyte, demonstrates the effectiveness of this straightforward, environmentally friendly strategy for impurity control and long-term electrochemical stability.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"305 ","pages":"Article 112750"},"PeriodicalIF":12.7,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144511048","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

Multi-dimensional evaluation of phosphorus oxidation state and loading effects on the fire safety of carbon fiber reinforced aviation epoxy resin via control variables experiment 通过控制变量实验多维度评价碳纤维增强航空环氧树脂的磷氧化态及加载对其防火安全性的影响

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2025-06-24 DOI: 10.1016/j.compositesb.2025.112743

Bin Zou , Xiaochuan Li , Xiaodong Qian , Xiangliang Tian , Shuilai Qiu , Yifan Zhou , Siyu Zhu , Jiajun Li , Yuan Hu

{"title":"Multi-dimensional evaluation of phosphorus oxidation state and loading effects on the fire safety of carbon fiber reinforced aviation epoxy resin via control variables experiment","authors":"Bin Zou , Xiaochuan Li , Xiaodong Qian , Xiangliang Tian , Shuilai Qiu , Yifan Zhou , Siyu Zhu , Jiajun Li , Yuan Hu","doi":"10.1016/j.compositesb.2025.112743","DOIUrl":"10.1016/j.compositesb.2025.112743","url":null,"abstract":"<div><div>Understanding how multiple variables of flame retardants affect the fire hazards of their composites is essential for quantifying fire risks of cabin materials and aircraft overall. Incorporating flame retardants is typically required to meet stringent fire safety standards of booming epoxy resin carbon fiber composites (EP/CF) for aviation applications. This work synthesizes a new flame retardant PDDO through a substitution reaction between anhydrous piperazine and diphenylphosphoryl chloride, which has an overlapping pyrolysis characteristic with a deviation of 7.42 % in peak pyrolysis temperature, and that of corresponding EP/CF composites is 6.02 %. Incorporating only 5 wt% PDDO into EP/CF reaches a V-0 rating in the UL-94 and 54 % of LOI, exceeding that of introducing 11 wt% RDP. In comparison to neat EP at 25 kW/m<sup>2</sup>, the peak heat release and total heat release of EP/CF-RDP are separately reduced by 74.38 % and 72.41 %, while EP/CF-PDDO shows reductions of 77.78 % and 73.93 %, respectively. The smoke density of EP/CF-RDP and EP/CF-PDDO is lower than that of neat EP, but they are separately increased by 59.36 % and 15.50 % compared to EP/CF due to the additional gas-phase effects caused by the flame retardants. A multi-dimensional and subject-objective combined model is established, the evaluation of fire hazard value of EP/CF-RDP and EP/CF-PDDO separately decreases by 60.66 % and 63.17 % compared to neat EP. This study elucidates the combined impact of phosphorus valence state, additive content and thermal stability of flame retardant on the fire hazard of composites, providing a foundation for flame retardant selection and fire hazard assessment for aircraft materials.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"305 ","pages":"Article 112743"},"PeriodicalIF":12.7,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144501751","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

Regulating interface structure and shear performance of extruded NiTi fiber reinforced Al-based composites via heat treatments 热处理对挤压NiTi纤维增强al基复合材料界面结构和剪切性能的调节

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2025-06-24 DOI: 10.1016/j.compositesb.2025.112741

Zhen Zhang , Cunsheng Zhang , Liang Chen , Sujuan Zhong , Guoqun Zhao

{"title":"Regulating interface structure and shear performance of extruded NiTi fiber reinforced Al-based composites via heat treatments","authors":"Zhen Zhang , Cunsheng Zhang , Liang Chen , Sujuan Zhong , Guoqun Zhao","doi":"10.1016/j.compositesb.2025.112741","DOIUrl":"10.1016/j.compositesb.2025.112741","url":null,"abstract":"<div><div>Superior interfacial bonding is necessary to improve the performance of aluminum matrix composites. In this work, the Al/NiTi composite plate was fabricated by a novel composite extrusion technique, and the effects of heat treatment parameters on the interfacial structure and shear failure behavior of the composite plates were systematically investigated. The results indicate that different heat treatment processes induce the formation of interface structures with significant differences in Al/NiTi composites. The annealed composite plate forms an inhomogeneous multilayer transition interface: Ti–O layer, Ti<sub>2</sub>Ni and TiNi mixed layer, and discontinuous Al<sub>3</sub>Ti layer. The discontinuous brittle intermetallic compounds weaken the interfacial bonding, resulting in mainly interface debonding. However, the failure mechanism of the directly aged composite becomes primarily matrix failure, accompanied by severe sliding friction and mechanical interlocking, attributed to the formation of aluminum-side fine grain zone and nanocrystalline/amorphous transition zone at the interface. The aged composite exhibits superior interfacial shear properties compared to extruded and annealed composites. <u>The structure-performance-mechanism correlation was established between interfacial structure and shear behavior in composite extruded plates, thus providing a strategy for obtaining Al/NiTi composites with excellent properties.</u></div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"305 ","pages":"Article 112741"},"PeriodicalIF":12.7,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144519168","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

Enhancing mechanical properties of 2D carbon/carbon composites via ZIF-67@CNTs-modified interfacial Layers: Mechanisms and performance optimization 通过ZIF-67@CNTs-modified界面层增强二维碳/碳复合材料的力学性能：机制和性能优化

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2025-06-24 DOI: 10.1016/j.compositesb.2025.112742

Zhaofan Zhou, Ruoxi Zhang, Yi Cao, Wenqi Liu, Dongfang Xu, Jinhua Lu, Xiyuan Yao

{"title":"Enhancing mechanical properties of 2D carbon/carbon composites via ZIF-67@CNTs-modified interfacial Layers: Mechanisms and performance optimization","authors":"Zhaofan Zhou, Ruoxi Zhang, Yi Cao, Wenqi Liu, Dongfang Xu, Jinhua Lu, Xiyuan Yao","doi":"10.1016/j.compositesb.2025.112742","DOIUrl":"10.1016/j.compositesb.2025.112742","url":null,"abstract":"<div><div>The interfacial bonding condition significantly governs the mechanical properties and performance of carbon/carbon (C/C) composites. This study presents a novel approach for constructing an interfacial layer modified by carbon nanotubes (CNTs) on the surface of carbon fibers (CFs), utilizing cobalt 2-methylimidazole (ZIF-67) as a catalyst precursor. Subsequently, the morphology of the interfacial layer within the cloth-laminated C/C composites was characterized, and the macroscopic and microscopic mechanical properties of CNTs-modified C/C (CNTs-C/C) composites were investigated. The out-of-plane compressive strength (OCS) and the interlaminar shear strength (ILSS) of the CNTs-C/C composites increased to 380 ± 19 MPa and 30.96 ± 1.43 MPa, respectively. These values represent remarkable increases of 85.4 % and 91.2 % compared to the C/C composites. The nanoindentation and fiber push-in tests revealed substantial improvements in both the interfacial layer strength and interfacial shear strength (IFSS) of the CNTs-C/C composites. The reinforced interfacial layer not only enhances crack propagation resistance but also strengthens the fiber-matrix bonding, thereby promoting CFs pull-out behavior. Furthermore, the high-strength interfacial layer exhibits enhanced load transfer efficiency to the CFs, thereby improve the overall load-bearing capacity of the composites. Consequently, the CNTs-C/C composites demonstrate superior comprehensive mechanical properties, achieving a flexural strength of 315 ± 14 MPa, representing a 57.5 % enhancement compared to the C/C composites.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"305 ","pages":"Article 112742"},"PeriodicalIF":12.7,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144490786","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

Novel copper-based nanocomposite coatings achieving autonomous damage reporting and solar-triggered self-healing for marine corrosion protection 新型铜基纳米复合涂层实现自主损伤报告和太阳能触发自修复，用于海洋腐蚀防护

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2025-06-24 DOI: 10.1016/j.compositesb.2025.112748

Lin Cao , Tong Wang , Wei Wang , Huimeng Feng , Ruzheng Wang , Yue Zhang , Wen Li , Shougang Chen

{"title":"Novel copper-based nanocomposite coatings achieving autonomous damage reporting and solar-triggered self-healing for marine corrosion protection","authors":"Lin Cao , Tong Wang , Wei Wang , Huimeng Feng , Ruzheng Wang , Yue Zhang , Wen Li , Shougang Chen","doi":"10.1016/j.compositesb.2025.112748","DOIUrl":"10.1016/j.compositesb.2025.112748","url":null,"abstract":"<div><div>Developing efficient self-healing corrosion-resistant coatings remains a major challenge in metal protection. Herein, we propose a novel micron/nano-scale strategy to fabricate core-shell composite nanofibers (PVB-PVP-Cu<sub>2</sub>(OH)<sub>3</sub>NO<sub>3</sub>@Phen) via a one-step coaxial electrospinning process. The in-situ growth photothermal agent Cu<sub>2</sub>(OH)<sub>3</sub>NO<sub>3</sub> (CON) and corrosion indicator phenanthroline (Phen) are simultaneously integrated, forming a multifunctional system. Remarkably, this work reports the first successful in situ synthesis of CON nanoparticles through one-step electrospinning, with the photothermal conversion mechanism corroborated through both experimental and simulation approaches. Integrated into a thermal-responsive epoxy resin, the composite nanofibers enable autonomous corrosion detection and photothermal-triggered self-healing, markedly enhancing both healing efficiency and corrosion protection. The BP-CON@Phen/EP coating rapidly heats to 61.0 °C under simulated sunlight within 200 s, promoting chain mobility and achieving a 95.04 % self-healing efficiency. After 140 days of immersion, the coating maintains strong protective properties with a stable impedance of 5.3 × 10<sup>8</sup> Ω cm<sup>2</sup>. Additionally, BP-CON@Phen enhances the resistance of the epoxy coating to temperature fluctuations and cathodic disbondment. Molecular dynamics simulations further indicate that BP-CON@Phen effectively obstructs corrosive media penetration, sustaining long-term corrosion resistance. This novel design strategy holds significant potential for advancing self-healing and corrosion-resistant coatings, offering high-performance solutions for diverse surface protection applications.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"305 ","pages":"Article 112748"},"PeriodicalIF":12.7,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144490787","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

Hydroxyl-induced fluorine substitution in low dielectric all-inorganic silica composites for high fidelity communication cables under extreme environments 极端环境下高保真通信电缆用低介电全无机硅复合材料羟基诱导氟取代

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2025-06-24 DOI: 10.1016/j.compositesb.2025.112744

Siqing Tong , Yashan Zhang , Chengyi Hou , Qinghong Zhang , Kerui Li , Zhijie Jin , Yaogang Li , Hongzhi Wang

{"title":"Hydroxyl-induced fluorine substitution in low dielectric all-inorganic silica composites for high fidelity communication cables under extreme environments","authors":"Siqing Tong , Yashan Zhang , Chengyi Hou , Qinghong Zhang , Kerui Li , Zhijie Jin , Yaogang Li , Hongzhi Wang","doi":"10.1016/j.compositesb.2025.112744","DOIUrl":"10.1016/j.compositesb.2025.112744","url":null,"abstract":"<div><div>All-inorganic quartz fiber reinforced silica with high temperature stability is a promising low dielectric material for high-fidelity communication cables in extreme environments. However, its dielectric properties are constrained by the inherent polarizable -<em>Si</em>-<em>O</em>- and -<em>Si</em>-OH, driving the urgent exploration of silica-based low-dielectric materials that go beyond merely adjusting the porous structure. Herein, a fluorine-substituted silica/quartz fiber composite (FS–SiO<sub>2</sub>) is generated by developing an <em>in situ</em> vapor fluorine substitution (termed VFS) strategy. During the substitution process, highly polarizable -<em>Si</em>-OH of fluorosilane-modified SiO<sub>2</sub> is replaced with low-polarizability -<em>Si</em>-F bonds through a simple thermal treatment at 600 °C. As a result, the dielectric constant and loss were highly reduced to be 1.74 and 1.00 × 10<sup>−2</sup> at 20 MHz. The communication cable with the FS-SiO<sub>2</sub> dielectric layer exhibited a significantly low attenuation of 0.74 dB/m at the frequency of 12 GHz, outperforming the cable using pure silica/quartz fiber composites with the attenuation of 1.55 dB/m. Furthermore, the cable's attenuation and VSWR remained nearly constant even after ten thermal cycles at 550 °C or 4 h of operation at 300 °C.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"305 ","pages":"Article 112744"},"PeriodicalIF":12.7,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144472033","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

Synchrotron X-ray diffraction and digital volume correlation of carbon fibre-reinforced polymers for enhanced characterisation of deformation behaviour 碳纤维增强聚合物的同步加速器x射线衍射和数字体积相关，用于增强变形行为的表征

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2025-06-23 DOI: 10.1016/j.compositesb.2025.112703

Jiraphant Srisuriyachot , Thanasis Chatziathanasiou , Sophie A.M. McNair , Paloma Rodriguez Santana , Jean Bénézech , Yentl Swolfs , Igor P. Dolbnya , Richard Butler , Alexander J.G. Lunt

{"title":"Synchrotron X-ray diffraction and digital volume correlation of carbon fibre-reinforced polymers for enhanced characterisation of deformation behaviour","authors":"Jiraphant Srisuriyachot , Thanasis Chatziathanasiou , Sophie A.M. McNair , Paloma Rodriguez Santana , Jean Bénézech , Yentl Swolfs , Igor P. Dolbnya , Richard Butler , Alexander J.G. Lunt","doi":"10.1016/j.compositesb.2025.112703","DOIUrl":"10.1016/j.compositesb.2025.112703","url":null,"abstract":"<div><div>This paper demonstrates a new approach that exploits both lattice strain mapping via Wide Angle X-ray Scattering (WAXS) and Digital Volume Correlation (DVC) of Computed Tomography (CT) to understand the material response at different length scales in Carbon Fibre Reinforced Polymers (CFRPs) under <em>in-situ</em> loading, a phenomenon of substantial importance for the modelling, design, and certification of composite structures. WAXS gives insight into fibre lattice strain, while DVC provides sub-laminate response in the CFRP. A detailed numerical simulation was also developed to compare with these novel experimental methods. This approach is the first demonstration that the strain within the crystalline regions of the fibre is distinct from the sub-laminate behaviour, with up to 80% and 36% differences in the longitudinal and transverse directions, respectively, as a result of the complex microstructure of the fibres. An improved understanding of composite behaviour is fundamental to understanding how strain accommodation leads to structural failure, providing routes to refine part rejection criteria and reduce the environmental impact of this increasingly widespread material class.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"305 ","pages":"Article 112703"},"PeriodicalIF":12.7,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144472035","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

Robust PI composites with high-connected AgNPs for multifunctional electromagnetic interference shielding in harsh environment 具有高连接AgNPs的坚固PI复合材料用于恶劣环境下的多功能电磁干扰屏蔽

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2025-06-22 DOI: 10.1016/j.compositesb.2025.112735

Xiaoyuan Zhang, Yuqi Yang, Gui Yang, Fengmei Su, Youxin Ji, Chuntai Liu

{"title":"Robust PI composites with high-connected AgNPs for multifunctional electromagnetic interference shielding in harsh environment","authors":"Xiaoyuan Zhang, Yuqi Yang, Gui Yang, Fengmei Su, Youxin Ji, Chuntai Liu","doi":"10.1016/j.compositesb.2025.112735","DOIUrl":"10.1016/j.compositesb.2025.112735","url":null,"abstract":"<div><div>Durable and multifunctional electromagnetic interference (EMI) shielding materials have garnered significant attention due to their growing application demands. However, achieving optimal EMI shielding performance remains challenging, primarily due to the inherent interfacial resistance among conductive fillers. In this study, a novel polyimide@silver-sintered (PI@Ag–S) nanofiber composite was developed through in situ anchoring and low-temperature sintering of Ag nanoparticles (AgNPs) on electrospun PI nanofibers. The sintering process created a highly interconnected AgNPs layer, significantly reducing the electrical resistance and enhancing the electrical conductivity from 49 S/cm to an exceptional 154 S/cm. The resulting PI@Ag–S nanofiber composite demonstrated outstanding EMI shielding effectiveness (86.7 dB), and a remarkable SSE/t value of 14985 dB cm<sup>2</sup> g<sup>−1</sup>, alongside excellent in-plane thermal conductivity (2.6011 W/(m⋅K)). Additionally, the composite showcased superior electrical heating performance, enabling effective defogging and de-icing operations at a low voltage of 1.5 V. Notably, the composite, protected by an ultrathin 8 μm PI coating, exhibited exceptional durability, including resistance to extreme temperatures, strong acid and alkali corrosion, and flame-retardant properties. These attributes make the flexible PI@Ag–S nanofiber composite a promising candidate for advanced EMI shielding and thermal management applications, particularly in harsh environments.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"305 ","pages":"Article 112735"},"PeriodicalIF":12.7,"publicationDate":"2025-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144490788","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

Finite element and machine learning-assisted analysis of fiber–matrix interphase in single-fiber pull-out tests 单纤维拔出试验中纤维-基质界面的有限元和机器学习辅助分析

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2025-06-22 DOI: 10.1016/j.compositesb.2025.112702

Karl Roetsch , Lars Bittrich , Andrea Bercini Martins , Christina Scheffler , Axel Spickenheuer , Markus Stommel

引用次数: 0

Towards repairable composites: healing of mode I and mode II delaminations in woven glass fibre and vitrimer matrix laminates 迈向可修复复合材料：编织玻璃纤维和玻璃体基质层压板中I型和II型分层的愈合

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2025-06-21 DOI: 10.1016/j.compositesb.2025.112738

Alejandro Lopez-Olmedo, Roberto Frassine, Marco L. Longana

{"title":"Towards repairable composites: healing of mode I and mode II delaminations in woven glass fibre and vitrimer matrix laminates","authors":"Alejandro Lopez-Olmedo, Roberto Frassine, Marco L. Longana","doi":"10.1016/j.compositesb.2025.112738","DOIUrl":"10.1016/j.compositesb.2025.112738","url":null,"abstract":"<div><div>The widespread use of thermoset matrix composite has led to an increase in hardly manageable composite waste, driving research into alternative material concepts promoting circularity through repairing strategies. In this study, the intrinsic healing of imine-based vitrimer matrix composite after delamination is investigated. Laminates of woven glass reinforced composite were tested in Double Cantilever Beam and Three-Point End-Notched Flexure tests, followed by an ex-situ delamination healing process and retesting. A remarkable recovery of fracture properties was observed: repairing efficiencies of 91 % and 98 % were obtained for mode I and II interlaminar fracture toughness, respectively. Visual inspections confirmed successful healing of damage across all cases. The fracture surface was evaluated for mode I, showing that the crack in the virgin state is a preferred path for the post-healed delamination. Results demonstrate that imine-based vitrimer composites have significant potential of healing delamination cracks.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"305 ","pages":"Article 112738"},"PeriodicalIF":12.7,"publicationDate":"2025-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144501752","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