Composites Part B: Engineering最新文献

{"title":"Two geometries of polydopamine synergistically enhance carbon fiber-epoxy interfacial adhesion","authors":"Qing Wu ,&nbsp;Dan Jin ,&nbsp;Quansheng Ma ,&nbsp;Bolin Xiao ,&nbsp;Yating Li ,&nbsp;Yidi Zhang ,&nbsp;Jianfeng Zhu","doi":"10.1016/j.compositesb.2025.112768","DOIUrl":"10.1016/j.compositesb.2025.112768","url":null,"abstract":"<div><div>This paper first explores the bio-inspired green surface modification of carbon fiber by two geometries of polydopamine (PDA), that is amorphous coating and nanospheres (PDA_NPs). Compared to only amorphous PDA modified fibers, synergistic modification using dual PDA variants is more effective in enhancing fiber strength and interfacial performance of composite. When the reaction time of amorphous PDA on carbon fiber reaches 96 h, it could adsorb more PDA_NPs with dense and uniform distribution, which consequently leads to the maximal enhancements of 20.5 % and 64.4 % in fiber strength and interfacial shear strength due to the synergistic effects of improved resin infiltration, barb-like micro-nano interlocking, dynamic hydrogen bonds that repeatedly dissipate energy, epoxy molecules slide along PDA_NPs that alleviate stress, and crack defection by dense PDA_NPs. This paper highlights an effective and green-initiative avenue for the promising interfacial engineering modulation of high-performance composites.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"305 ","pages":"Article 112768"},"PeriodicalIF":12.7,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144536121","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}

{"title":"Multi-material hybrid additive manufacturing of polymer-derived SiC ceramic composites","authors":"Hewu Sun ,&nbsp;Bin Zou ,&nbsp;Tao Quan ,&nbsp;Xinfeng Wang ,&nbsp;Xianhua Ma ,&nbsp;Hongyu Xing ,&nbsp;Shitong Wei ,&nbsp;Chuanzhen Huang","doi":"10.1016/j.compositesb.2025.112765","DOIUrl":"10.1016/j.compositesb.2025.112765","url":null,"abstract":"<div><div>Multi-materialization, multi-structuring and multi-functionalization of high-performance ceramics present an increasingly wide range and demand in the fields of special industries, biomedicine, microelectronics, aerospace. Most of the existing multi-material additive manufacturing technologies for ceramics use single-process methods, which have large limitations in the material constituent system, interface modulation, structure creation and anti-fouling measures. This paper presents a multi-material hybrid additive forming technique for polymer-derived ceramics (PDC) to fabricate multi-material SiC ceramic components with surface free of deformation, damage and cracks. High-viscosity polycarbosilane (PCS) pastes with different solid contents and low-viscosity alumina (Al₂O₃)/PCS/silicon carbide whisker (SiC_w) composite slurries were prepared for the stereolithographic light curing (SLA) and material extrusion (ME) compound processes, respectively. The curing behaviors of the different used materials were analyzed and an accurate prediction model of the curing characteristics was established. After the ceramization process, single-material pure SiC ceramics and multi-material SiC ceramics flexural test specimens were successfully obtained, and the latter showed more excellent flexural properties than the former. In addition, a variety of multi-material models were designed to focus on the bonding quality and microscopic morphology of the interfaces in the horizontal and vertical directions under the compound process. The generation mechanism of “staggered layer” at the multi-material interface and the principle of pyrolytic micro-deformation of multi-material components were revealed. The results show that the technique can produce multi-material polymer-derived ceramic components with high precision, excellent interfacial integration and less defects. The high compatibility of the self-developed novel multi-material ceramic hybrid additive manufacturing system and software also demonstrates the great potential of printing multi-material functional polymer-derived ceramics with complex structures.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"306 ","pages":"Article 112765"},"PeriodicalIF":12.7,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144548833","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}

{"title":"Deployable fiber-reinforced polymer for advanced monolithic Rigid–Soft robotics applications","authors":"Seung Mo Son ,&nbsp;SeungWoo Jung ,&nbsp;Dong Gi Seong","doi":"10.1016/j.compositesb.2025.112754","DOIUrl":"10.1016/j.compositesb.2025.112754","url":null,"abstract":"<div><div>Deployable structures, particularly those inspired by origami, have garnered significant attention for their compact storage and efficient deployment capabilities. This study proposes a multi-resin dispensing process for fabricating monolithic fiber-reinforced polymer (FRP) structures tailored for rigid–soft robotics applications. Combining rigid and flexible epoxy resins enables precise resin patterning, overcoming the limitations of traditional single-resin systems. This approach allows the selective imparting of mechanical properties within monolithic structures, facilitating deployment mechanisms and ensuring stability under repetitive cycles without hysteresis. The resulting FRP structures exhibit a flexural modulus of 6.95 GPa for rigid sections and 0.66 GPa for foldable sections, allowing selective folding with a radius of curvature less than 0.5 mm. The successful fabrication of a monolithic composite with a triangulated cylindrical origami (TCO) structure highlights the potential for mass production of advanced FRP structures, suitable for next-generation rigid–soft robotics and aerospace applications. Unlike existing soft materials, the TCO FRP demonstrates durability under repeated deployments at high strains of up to 80 %, producing a significant deployment force of 2.75 kgf, enabling repetitive motion. This advancement broadens the scope of composite materials, facilitating adaptable, scalable solutions with selective rigidity and flexibility.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"305 ","pages":"Article 112754"},"PeriodicalIF":12.7,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144519171","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}

{"title":"Stretch, sense, and innovate: Advances in next-generation strain sensors","authors":"Animesh Maji ,&nbsp;Chinmoy Kuila ,&nbsp;Naresh Chandra Murmu ,&nbsp;Tapas Kuila","doi":"10.1016/j.compositesb.2025.112749","DOIUrl":"10.1016/j.compositesb.2025.112749","url":null,"abstract":"<div><div>The rapid proliferation of wearable technology, aligned with the digital transformation of Industry 4.0 and the emerging paradigm of Industry 6.0, has accelerated the development of intelligent strain sensors. Polymer composite-based strain sensors have attracted significant attention for their ability to convert mechanical deformation into electrical signals with high sensitivity and adaptability to dynamic environments. Although considerable progress has been achieved, strain sensors face challenges such as balancing sensitivity to stretchability, poor dispersion of nanomaterials, and limited durability. Environmental sensitivity, interfacial adhesion, and high fabrication costs hinder their scalability and performance. Wearable strain sensors are still in the prototype stage, and various obstacles in developing integrated and multifunctional strain sensors must be addressed. This review aims to consolidate the fundamental sensing principles, structural innovations, critical design parameters, and multifunctional properties, including thermal management, EMI shielding, and hydrophobicity of polymer-based strain sensors. Finally, the prevailing challenges and prospects in advancing multifunctional strain sensors for wearable smart gadgets and electronic skin are explored. This review not only elucidates the current state-of-the-art polymer-based wearable strain sensor technologies but also envisions future directions, catalyzing transformative advancements in digital health.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"306 ","pages":"Article 112749"},"PeriodicalIF":12.7,"publicationDate":"2025-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144549423","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}

{"title":"Shape memory alloy-based tensile activated kirigami actuators","authors":"Yeong Jae Park ,&nbsp;Gyohyeon Song ,&nbsp;Jiseong Shin ,&nbsp;Hugo Rodrigue","doi":"10.1016/j.compositesb.2025.112757","DOIUrl":"10.1016/j.compositesb.2025.112757","url":null,"abstract":"<div><div>Kirigami-patterned structures offer a wide range of possibilities for designing stretchable structures from materials with little stretchability. Tensile activated kirigami (TAK) structures are an incarnation of this principle whereby a tension can be used to produce complex deformation of a planar surface. This paper presents a novel shape memory alloy (SMA)-TAK actuator capable of achieving large in-plane deformations while maintaining a low-profile structure. The proposed kirigami pattern, featuring two slot hinges, was fabricated from SMA plates using fiber laser cutting. Experimental results demonstrate in-plane strains of up to 155 % with a corresponding force of 0.66 N, significantly surpassing the ∼5 % recoverable strain of bulk SMA, could maintain its performance over 1000 actuation cycles with Joule enabling active actuation. Finite element method (FEM) simulations and numerical modeling were conducted to predict the maximum strain and force produced by the actuator, showing strong agreement with the experimental data. The performance of actuator was evaluated under various geometrical configurations, revealing that the hinge configuration and the geometry both critically influence the maximum strain and force. Scalability was explored by increasing the number of serially connected units, confirming that the design retains high strain capabilities with minimal performance loss. The proposed actuator was integrated into a miniature, turtle-inspired crawling robot, demonstrating forward locomotion with minimal height variation, essential for navigation in confined spaces. The combination of TAK structures and SMA materials in this study introduces a scalable, versatile actuation system with potential applications in miniature robotics, medical devices, and search-and-rescue operations.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"305 ","pages":"Article 112757"},"PeriodicalIF":12.7,"publicationDate":"2025-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144517431","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}

{"title":"Modeling-based mechanistic insights into the role of barium titanate shape and microstructural defects in coupled-field responses of piezoelectric nanocomposites","authors":"Alireza Moradi ,&nbsp;Reza Ansari ,&nbsp;Mohammad Kazem Hassanzadeh-Aghdam ,&nbsp;Saeid Sahmani ,&nbsp;Sung-Hwan Jang","doi":"10.1016/j.compositesb.2025.112755","DOIUrl":"10.1016/j.compositesb.2025.112755","url":null,"abstract":"<div><div>Barium titanate (BT) nanofillers play a crucial role in polymer nanocomposites due to their remarkable intrinsic properties, which markedly improve the effectiveness of energy conversion. However, the synthesis of BT nanofillers in varied structural profiles, such as nanowires, nanoplatelets, and nanoparticles, along with their dispersion within the polymer matrix, exerts a substantial impact on the overall performance of the nanocomposite. Non-uniform nanofiller dispersion is inherently tied to the development of microstructural defects, including poor compatibility between phases, the formation of voids, and nanofiller agglomeration. This study investigates the influence of BT nanofiller shape and microstructural defects on the effective properties of BT/polydimethylsiloxane (PDMS) piezoelectric nanocomposites. Based on a micromechanics-based finite element framework, representative volume elements (RVEs) of the nanocomposite are generated using a morphology-centric computational simulation, and their Young's moduli, piezoelectric coefficients, and thermal expansion coefficients are subsequently predicted. The results indicate that establishing robust interphase regions, driven by enhanced interfacial compatibility, has a direct impact on elevating system functionality. Additionally, the adverse effects of void defects and nanofiller agglomeration on the effective properties are alleviated through void minimization and agglomerate breakdown.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"305 ","pages":"Article 112755"},"PeriodicalIF":12.7,"publicationDate":"2025-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144519170","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}

{"title":"Sandwich-structured paper composite with water and oil resistance for food packaging and tableware applications","authors":"Zhongjin Zhou ,&nbsp;Lauren Merrill ,&nbsp;Xianhui Zhao ,&nbsp;Shahab Saedi ,&nbsp;Nicole Labbé ,&nbsp;Tong Wang ,&nbsp;Harry M. Meyer III ,&nbsp;Sanjita Wasti ,&nbsp;Siqun Wang","doi":"10.1016/j.compositesb.2025.112763","DOIUrl":"10.1016/j.compositesb.2025.112763","url":null,"abstract":"<div><div>The growing environmental challenges posed by plastic waste from disposable tableware highlight the urgent need for sustainable alternatives. Traditional plastics decompose over centuries, generating microplastics that threaten ecosystems and human health. While lignin has emerged as a promising material for plastic replacement, its inherent dark brown color and processing challenges in paper-based products have limited its application, particularly in food-contact materials. To address these limitations, we have developed biodegradable sandwich-structured paper composites comprising parchment paper as surface layers and a lignin-polymer core with polyvinyl alcohol (PVA) and polylactic acid (PLA). This innovative structure eliminates the need for binders, minimizing potential food contamination, and enables direct application as packaging or molded tableware. Lignin micro- and nano-particles (LMNP) enhances durability and provides natural water and oil resistance without harmful additives, such as per- and polyfluoroalkyl substances (PFAS), while PVA and PLA improve the composite's tenacity. The resulting material, composed of 65 wt% lignin, demonstrates excellent water and oil resistance, with no penetration exceeding 1 h, and exhibits enhanced tensile strength (45 MPa), making it a viable and eco-friendly alternative for disposable tableware.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"306 ","pages":"Article 112763"},"PeriodicalIF":12.7,"publicationDate":"2025-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144548831","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}

{"title":"Nonlinear profile engineering of 3D-printed gradient impedance structures for broadband and strong microwave absorption","authors":"Lei Zheng,&nbsp;Kai Cui,&nbsp;Wenhao Li,&nbsp;Tao Wang,&nbsp;Xian Wang,&nbsp;Rongzhou Gong","doi":"10.1016/j.compositesb.2025.112751","DOIUrl":"10.1016/j.compositesb.2025.112751","url":null,"abstract":"<div><div>Gradient impedance structures (GIS) are critical for broadband and strong microwave absorption, yet conventional linear geometric profiles fail to ensure optimal interlayer impedance gradients. This work introduces a novel GIS design featuring a cubic-function profile to optimize impedance matching and attenuation characteristics. Theoretical calculation and full-wave simulations reveal that concave-convex hybrid profiles enhance low-frequency attenuation while improving high-frequency impedance matching. Using 3D-printed Polyamide 12 (PA12)/Carbonyl iron powder (CIP) composite filaments, we fabricated GIS with tailored nonlinear profiles. The proposed structure achieves a broadband effective absorption bandwidth (EAB) of 14.72 GHz for reflection loss (<em>RL</em>) ≤ −10 dB and 9.38 GHz for <em>RL</em> ≤ −20 dB, with a minimum <em>RL</em> of −39.4 dB and a mean <em>RL</em> of −22.3 dB. Theoretical modeling, full-wave simulations, and experimental validation demonstrate that the cubic-function profile enables superior impedance matching and attenuation compared to conventional linear designs. This work provides a generalized framework for nonlinear profile optimization of GIS, with potential applications in aerospace and 5G electromagnetic compatibility.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"305 ","pages":"Article 112751"},"PeriodicalIF":12.7,"publicationDate":"2025-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144518847","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}

{"title":"Flame-retardant, thermally conductive, and mechanically strong epoxy composites with phenylphosphonic acid-functionalized boron nitride nanosheets","authors":"Hongru Zhou ,&nbsp;Xinyi Yu ,&nbsp;Xingping Zhou ,&nbsp;Yingfeng Wen ,&nbsp;Zhigang Xue ,&nbsp;Yiu Wing Mai ,&nbsp;Xiaolin Xie","doi":"10.1016/j.compositesb.2025.112764","DOIUrl":"10.1016/j.compositesb.2025.112764","url":null,"abstract":"<div><div>Epoxy resin (EP)-based thermally conductive composites have become strong candidate materials for heat dissipation of electronic devices. However, the inherent low thermal conductivity (TC) and combustible nature of traditional EPs have markedly limited their application. In this work, we developed an EP-composite containing phenylphosphonic acid (PPA)-functionalized boron nitride nanosheets (BNNS), i.e., PPA@BNNS, <em>via</em> ball milling exfoliation of hexagonal boron nitride with PPA, which served as an interfacial modifier and a flame retardant. The PPA attached on the BNNS surface through π-π interactions enhanced the interfacial compatibility between filler and EP, minimized BNNS agglomeration, and improved the mechanical strength of EP/PPA@BNNS composite. In particular, the EP/PPA@BNNS composite with 30 wt% filler exhibited a 4.5-fold increase in TC relative to neat EP, manifesting the well-connected thermal conductive pathways formed by the uniformly dispersed PPA@BNNS and the reduced interfacial thermal resistance. Moreover, the EP/PPA@BNNS composite with 5 wt% filler displayed superior flame retardancy; the peak heat release rate and total heat release were reduced to half those of neat EP owing to the physical barrier action and catalytic carbonization effect of PPA@BNNS.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"305 ","pages":"Article 112764"},"PeriodicalIF":12.7,"publicationDate":"2025-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144519167","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}

{"title":"Electrically conductive nanocomposites as heating elements for thermoplastics Joule welding","authors":"Fatmah Alsalami ,&nbsp;Ian A. Kinloch ,&nbsp;Rashid K. Abu Al-Rub ,&nbsp;Cristina Vallés","doi":"10.1016/j.compositesb.2025.112756","DOIUrl":"10.1016/j.compositesb.2025.112756","url":null,"abstract":"<div><div>The potential of electrically conductive polycarbonate (PC) nanocomposites filled with carbon nanotubes (CNTs) and graphene nanoplatelets (GNPs) as heating elements to Joule weld PC substrates was investigated. Both GNPs/PC and CNTs/PC nanocomposites behaved as electrically percolated systems, with the CNTs rendering higher conductivities at considerably lower concentrations. Maximum values of 10.57 S/m and 0.028 S/m were achieved for the nanocomposite filled with 10 wt% loading of CNTs and 15 wt% loading of GNPs, respectively. The incorporation of 5 and 10 wt% loadings of CNTs into the polymer seemed to favour the development of denser conductive networks, capable of achieving the temperature required for an effective Joule welding of PC substrates under an applied voltage, whereas the addition of lower loadings of CNTs (i.e., ≤5 wt%) or GNPs at any loading ≤10 wt% rendered less conductive networks, not capable of achieving a high enough temperature for a successful Joule welding. The samples welded with the nanocomposite filled with 10 wt% CNTs showed higher lap shear strength (LSS) values (13.1–14.1 MPa) than those welded with the nanocomposite containing 5 wt% CNTs (12.3–12.9 MPa) due to the higher filler loading providing a higher conductivity and a more homogeneous Joule heating all throughout the heating element under the applied voltage. Likewise, increasing welding times, pressures and clamping distances led to progressively higher LSS of the Joule welded joints up to optimal values, with optimal times of 120 and 150 s being found for the nanocomposites containing 10 and 5 wt% loading of CNTs, respectively, and optimal pressure and clamping distance values of 1 MPa and 1.2 mm, respectively, being observed for both of them. This work demonstrates the potential of electrically conductive CNTs based polymer nanocomposites as heating elements for thermoplastics Joule welding, and highlights their formulation, applied voltage and welding parameters, including time, pressure and clamping distance, as key factors that can be strategically tuned to control the welding process and optimize the joints’ mechanical performance.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"305 ","pages":"Article 112756"},"PeriodicalIF":12.7,"publicationDate":"2025-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144519169","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}