Composites Part B: Engineering最新文献_第2页

In-situ fatigue prognosis in laminated composites: A machine learning approach using self-temperature rise data

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2025-04-18 DOI: 10.1016/j.compositesb.2025.112537

A.H. Mirzaei, P. Haghi

引用次数: 0

Characterization of low-velocity impact response and damage tolerance of thermoplastic/thermoset composite laminates under strong and complex preload

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2025-04-17 DOI: 10.1016/j.compositesb.2025.112530

Zhibin Zhao , Jianwu Zhou , Hui Cai , Xinzhi Yang , Guangjie Kou , Huipeng Yan , Zhengwei Yang

{"title":"Characterization of low-velocity impact response and damage tolerance of thermoplastic/thermoset composite laminates under strong and complex preload","authors":"Zhibin Zhao , Jianwu Zhou , Hui Cai , Xinzhi Yang , Guangjie Kou , Huipeng Yan , Zhengwei Yang","doi":"10.1016/j.compositesb.2025.112530","DOIUrl":"10.1016/j.compositesb.2025.112530","url":null,"abstract":"<div><div>In this study, a novel uni/biaxial preload-coupling loading device is designed to systematically investigate the low-velocity impact mechanical response and the evolution of Compression After Impact (CAI) strength of thermoplastic/thermoset (TP/TS) laminates under seven typical loading boundary conditions. The influence of preload forms and clamping boundary conditions on the impact mechanical response and damage evolution of TP/TS laminates is first comparatively analyzed. The regulation mechanism of preload forms on the compressive failure behavior of laminates is elucidated through the innovative integration of three-dimensional digital image correlation (3D-DIC) and infrared thermography monitoring techniques. Through multiple regression analysis, a quantitative correlation model is established between damage characteristic parameters (such as dent depth, delamination damage projection area (DDPA), and energy dissipation) and CAI strength. Experimental results indicate that preload types and loading boundary conditions significantly affect the damage tolerance performance of laminates. Specifically, TS laminates under uniaxial compressive preload exhibit a typical “catastrophic” delamination failure mode, while TP laminates demonstrate superior damage tolerance characteristics. Furthermore, the dual-parameter evaluation model based on dent depth and DDPA overcomes the limitations of traditional single damage parameter assessments, providing a significant methodological reference for load-compatibility design and safety evaluation of composite structures in aerospace applications.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"302 ","pages":"Article 112530"},"PeriodicalIF":12.7,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143865022","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

An environmentally friendly superhydrophobic coating with high-temperature resistance, UV resistance, and abrasion resistance was fabricated on carbon fiber board via an aqueous phase polymer dispersion system

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2025-04-16 DOI: 10.1016/j.compositesb.2025.112533

Qian Su , Kangli Yang , Zhiqing Yuan , Cancheng Li , Shoutong Meng , Xuyu Long , Rui He

{"title":"An environmentally friendly superhydrophobic coating with high-temperature resistance, UV resistance, and abrasion resistance was fabricated on carbon fiber board via an aqueous phase polymer dispersion system","authors":"Qian Su , Kangli Yang , Zhiqing Yuan , Cancheng Li , Shoutong Meng , Xuyu Long , Rui He","doi":"10.1016/j.compositesb.2025.112533","DOIUrl":"10.1016/j.compositesb.2025.112533","url":null,"abstract":"<div><div>Aiming at the problems of carbon fiber board (CFB), which is not waterproof and has poor UV resistance, a superhydrophobic coating with UV resistance and high-temperature resistance was innovatively prepared on CFB using an aqueous-phase polymer dispersion system by a highly efficient spraying method. The whole preparation system is highly environmentally friendly and safe. The results showed that the superhydrophobic carbon fiber board (SKCFB) could resist UV up to 85 h, could withstand high temperatures up to 300 °C, and had a water contact angle (WCA) of 159°. In addition, the abrasion resistance of SKCFB is 140 and 180 cycles under the action of 800 grit and 1200 grit sandpaper, respectively, for a load of 100 g, and 110 cycles under the action of 600 grit sandpaper. When carrying a load of 500 g, the 600 mesh, 800 mesh, and 1200 mesh sandpaper can be used for 40, 60, and 80 cycles of abrasion resistance, respectively. Compared with other samples of the same type, this SKCFB is simpler to prepare, has a greener and safer preparation route, and has better performance, plus the ability to control the appearance color as desired. This study provides a novel green, simple, and fast strategy for preparing superhydrophobic coatings on CFBs. At the same time, it opens a new path for preparing superhydrophobic coatings and enhances their application in industry.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"301 ","pages":"Article 112533"},"PeriodicalIF":12.7,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143850273","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

Multiphysics-coupled failure mechanism of Solid oxide fuel cell sealants under long-term operation: From microcrack evolution to electrochemical degradation and mechanistic damage

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2025-04-15 DOI: 10.1016/j.compositesb.2025.112527

Hongxiang Zheng , Wenchun Jiang , Xiucheng Zhang , Shan-Tung Tu

{"title":"Multiphysics-coupled failure mechanism of Solid oxide fuel cell sealants under long-term operation: From microcrack evolution to electrochemical degradation and mechanistic damage","authors":"Hongxiang Zheng , Wenchun Jiang , Xiucheng Zhang , Shan-Tung Tu","doi":"10.1016/j.compositesb.2025.112527","DOIUrl":"10.1016/j.compositesb.2025.112527","url":null,"abstract":"<div><div>Solid oxide fuel cell (SOFC) sealant systems experience significant performance degradation and mechanical damage during prolonged high-temperature operation, which severely impacts their reliability and lifespan. This study investigates the degradation of electrochemical and mechanical performance, along with the microstructural evolution of the SrO–SiO<sub>2</sub>–MgO–Al<sub>2</sub>O<sub>3</sub> sealant, NiO-YSZ anode, and 430 stainless steel interconnect system over 5000 h of operation. The findings reveal that the SOFC stack exhibits a voltage decay rate of 6.50 % per thousand hours at a current density of 300 mA/cm<sup>2</sup>, with open-circuit voltage degradation reaching 7.82 % after 5000 h. Sealant failure impedes charge transfer and gas diffusion reactions, resulting in a 126.66 % increase in ohmic resistance. The precipitation of Sr<sub>2</sub>MgSi<sub>2</sub>O<sub>7</sub> and SiO<sub>2</sub> crystal phases in the sealant leads to increases of 75.15 % and 84.26 % in hardness and elastic modulus, respectively. The uneven precipitation of crystal phases also accelerates crack generation. The diffusion and enrichment of Mg, Sr, and Si elements at the sealant-anode interface further facilitate crack propagation. These cracks ultimately penetrate the entire sealant and single cell, leading to the failure of the SOFC structure. Multi-physics field coupled modeling reveals that the Mises stress, creep strain, and damage in SOFC stack components increase with the extent of sealant cracking. When the sealant is completely cracked, the current density of the SOFC at 0.60 V voltage decreases by 34.96 %, which significantly reduces the life of the SOFC stack. This study offers valuable insights for optimizing the design and extending the operational life of SOFC stacks.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"301 ","pages":"Article 112527"},"PeriodicalIF":12.7,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143828898","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

Hexagonal boron nitride (h-BN) “a miracle in white”: An emerging two-dimensional material for the advanced powered electronics and energy harvesting application

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2025-04-15 DOI: 10.1016/j.compositesb.2025.112531

Chinmoy Kuila , Animesh Maji , Naresh Chandra Murmu , Tapas Kuila

{"title":"Hexagonal boron nitride (h-BN) “a miracle in white”: An emerging two-dimensional material for the advanced powered electronics and energy harvesting application","authors":"Chinmoy Kuila , Animesh Maji , Naresh Chandra Murmu , Tapas Kuila","doi":"10.1016/j.compositesb.2025.112531","DOIUrl":"10.1016/j.compositesb.2025.112531","url":null,"abstract":"<div><div>The growing demand for batteries or other compact electronics received considerable attention because of its high energy density and excellent power-to-mass ratio. However, obstacles such as inconsistent temperature distribution, inefficient energy storage, and sluggish release rates have emerged. Effective heat dissipation is required for optimum efficiency and durability of electrical devices. Thus, it is crucial to develop thermally conductive hybrid fillers for improved heat management in such systems. Two-dimensional (2D) hexagonal boron nitride (h-BN), also known as \"white graphene,\" encounters conceivable uses in electronics and energy devices due to the broad bandgap (∼5.5 eV), superior thermal endurance, high thermal conductivity (TC), and exceptional dielectric properties. The anisotropic conductivity of BN causes a reduction in cross-plane TC, which is a fundamental concern for its practical deployments. Therefore, developing a unique technique and structural engineering remedy for enhancing BN's cross-plane TC could be achievable. The main focus of this article is to explore the phonon-phonon scattering phenomena, mechanisms, and insights to design h-BN-based composites with good cross-plane TC and electrical insulation. The article summarizes the significance of 2D h-BN in several sectors, including electronic packaging, energy (e.g., thermal energy management and conversion), and batteries/supercapacitors. These topics highlight cutting-edge filler properties and the innovative design of 2D h-BN. Finally, the challenges and perspectives of developing potential thermal interface materials (TIMs) are highlighted. Our insights offer an initial glimpse into future studies on fabricating advanced TIMs in an appropriate filler structure configuration for optimal cooling of electronic/optoelectronic devices.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"301 ","pages":"Article 112531"},"PeriodicalIF":12.7,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143850275","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

Advancing aerospace maintenance: Thermochromic liquid crystal coating method for skin-to-core disbond detection in CFRP honeycomb structures 推进航空航天维护：热致变色液晶涂层方法用于检测 CFRP 蜂窝结构中的皮-芯脱粘现象

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2025-04-15 DOI: 10.1016/j.compositesb.2025.112516

M. Sun , D. Wowk , P.R. Underhill , T.W. Krause

{"title":"Advancing aerospace maintenance: Thermochromic liquid crystal coating method for skin-to-core disbond detection in CFRP honeycomb structures","authors":"M. Sun , D. Wowk , P.R. Underhill , T.W. Krause","doi":"10.1016/j.compositesb.2025.112516","DOIUrl":"10.1016/j.compositesb.2025.112516","url":null,"abstract":"<div><div>A novel Non-Destructive Evaluation (NDE) method for aerospace maintenance is introduced, utilizing advanced Thermochromic Liquid Crystal (TLC) ink to detect skin-to-core disbonds in carbon fiber-reinforced polymer (CFRP) honeycomb structures subjected to low-velocity impacts, representing a state-of-the-art integration of functional materials (TLC) with essential aerospace maintenance practices. Traditional NDE methods for detecting disbonds in aerospace structures often necessitate skilled technicians and sophisticated equipment. In contrast, the current study demonstrates that the proposed TLC coating method provides a straightforward, real-time detection technique that can serve as a preliminary or substitute inspection method. The detection and characterization results using the TLC coating method are rigorously evaluated through comparison with Forward-Looking Infrared (FLIR) by employing a high-performance thermal imaging camera. Results demonstrated that the TLC coating method achieved the same detection limits as FLIR thermography, with measurements of the disbond size differing by no more than 5 % between the two methods. A new heating method, Communicative Heating Thermography (CHT), was introduced for use with the TLC coating method in field applications without the need for post-processing, or expensive equipment. CHT enabled operators to dynamically adjust heat application based on real-time feedback from the TLC coating, optimizing disbond detection. This method was successfully implemented by untrained operators with an accuracy of 100 %.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"301 ","pages":"Article 112516"},"PeriodicalIF":12.7,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143847976","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

Design and fabrication of bionic Bouligand-structured SiC/2024Al composites via binder jetting additive manufacturing and pressure infiltration

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2025-04-15 DOI: 10.1016/j.compositesb.2025.112526

Yuan Li , Shijiang Zhong , Mingfang Qian , Xuexi Zhang , Zhenggang Jia , Lin Geng

{"title":"Design and fabrication of bionic Bouligand-structured SiC/2024Al composites via binder jetting additive manufacturing and pressure infiltration","authors":"Yuan Li , Shijiang Zhong , Mingfang Qian , Xuexi Zhang , Zhenggang Jia , Lin Geng","doi":"10.1016/j.compositesb.2025.112526","DOIUrl":"10.1016/j.compositesb.2025.112526","url":null,"abstract":"<div><div>Metal matrix composites (MMCs) are widely used in high-end manufacturing. However, the tradeoff between the strength and toughness of these materials poses a problem. In this study, inspired by nature, bionic Bouligand-structured SiC/2024Al composites with a pitch angle in the range of 15°–45° were designed using SolidWorks software and prepared via binder jetting additive manufacturing and pressure infiltration. Their SiC content was about 11.6 vol%, and their porosity ranged from 1.59 % to 2.80 %. A periodic structure was confirmed from microstructural observations and a micro-computed tomography examination. Furthermore, a pitch-angle-related mechanical property was observed in the composites. In particular, finite element analysis showed that the 45°-pitch-angle composite had lower stress concentration and higher load carrying capacity than the composites with other pitch angles. After solution and aging treatment, nano-scale θ′ and S′ phases precipitated in the matrix, resulting in Orowan strengthening behavior. Consequently, the heat-treated 45°-pitch-angle composite showed a higher compressive strength of 741.59 MPa, a compressive strain exceeding 30 % and a <em>K</em><sub>IC</sub> value of 13.32 MPa m<sup>1/2</sup>. The results of this study are expected to contribute to development of methods to overcome the strength-toughness tradeoff problem in MMCs.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"301 ","pages":"Article 112526"},"PeriodicalIF":12.7,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143834569","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

Accelerating mechanism of cement hydration by hydroxyl free radicals: new perspectives from photoexcited nano-TiO2

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2025-04-15 DOI: 10.1016/j.compositesb.2025.112524

Jihong Jiang , Han Wang , Junlin Lin , Zhiyong Liu , Laibo Li , Yali Li , Zongjin Li , Lingchao Lu , Yunjian Li , Zeyu Lu

{"title":"Accelerating mechanism of cement hydration by hydroxyl free radicals: new perspectives from photoexcited nano-TiO2","authors":"Jihong Jiang , Han Wang , Junlin Lin , Zhiyong Liu , Laibo Li , Yali Li , Zongjin Li , Lingchao Lu , Yunjian Li , Zeyu Lu","doi":"10.1016/j.compositesb.2025.112524","DOIUrl":"10.1016/j.compositesb.2025.112524","url":null,"abstract":"<div><div>Previous studies primarily considered TiO<sub>2</sub> as a nano-filler to accelerate cement hydration due to the nucleation site effect. However, hydroxyl free radicals (•OH), released from TiO<sub>2</sub> under UV irradiation, also exhibit great potential to accelerate cement hydration owing to their high nucleophilicity arising from unpaired electrons. This study is the first to reveal the accelerating mechanism of •OH generated by photoexcited nano-TiO<sub>2</sub> on cement hydration. Current experimental results indicated that 5.0 wt% addition of photoexcited nano-TiO<sub>2</sub> (under 6 h of UV irradiation during the early curing stage) improved the dissolution rate of tricalcium silicate (C<sub>3</sub>S) by 30 %, followed by a 35 % increase in the hydration degree of cement paste. More importantly, the polymerization degree and high-density content of C–S–H gels were also improved by 26 % and 13 %, accompanied by a 46 % reduction in porosity of the composites. All the aforementioned improvements were attributed to the presence of •OH generated by photoexcited nano-TiO<sub>2</sub>, which significantly accelerated cement hydration by accelerating C<sub>3</sub>S dissolution, facilitating faster nucleation and growth of C–S–H gels. In addition, the Density Functional Theory (DFT) calculations revealed that the accelerating effect of •OH on cement hydration may stem from the stronger interaction between •OH and the Ca ion on the C<sub>3</sub>S surface compared to the water molecule, and the increased surface nucleophilicity due to the dispersion of unpaired elections from •OH to all the O ions in the surface layer. These findings provide a high-efficiency approach to accelerate cement hydration by photoexcited nano-TiO<sub>2</sub>, thereby paving the way for the development of advanced and sustainable cement-based materials.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"301 ","pages":"Article 112524"},"PeriodicalIF":12.7,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143834570","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

Influence of surface modification on the interfacial properties of ultra-thin steel foils and CFRP co-curing without adhesive film:A comparative study of different techniques

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2025-04-14 DOI: 10.1016/j.compositesb.2025.112517

Lei Chen , Wei Zhu , Qi Zhang , Yanjie Zhang , Chenchen Zhao , Tao Wang , Qingxue Huang

{"title":"Influence of surface modification on the interfacial properties of ultra-thin steel foils and CFRP co-curing without adhesive film:A comparative study of different techniques","authors":"Lei Chen , Wei Zhu , Qi Zhang , Yanjie Zhang , Chenchen Zhao , Tao Wang , Qingxue Huang","doi":"10.1016/j.compositesb.2025.112517","DOIUrl":"10.1016/j.compositesb.2025.112517","url":null,"abstract":"<div><div>Ultra-thin stainless-steel foil, renowned for its high strength, corrosion resistance, and excellent formability, shows significant promise in fiber metal laminates. However, enhancing the interfacial adhesion between ultra-thin stainless-steel foil (less than 0.05 mm thick) and CFRP remains a technical challenge. Metal surface pretreatment is crucial for determining the bonding quality of steel/CFRP interfaces. In this study, cold spraying and laser scanning techniques were used to pretreat 30 μm thick ultra-thin stainless-steel foil. The effects of different treatment processes, both individually and in combination, on the physical and chemical states of foil surface were systematically characterized, and their impact on the interface bonding properties of steel/CFRP was analyzed. By progressively optimizing the metal surface modification process based on laser scanning treatment, significant improvements were achieved in active site density on the metal surface, resulting in a single lap shear strength of 30.07 MPa for co-cured steel/CFRP laminate without adhesive film. Compared to untreated samples, there was an impressive increase of 210.32 % in interfacial bond strength. This study presents a straightforward and environmentally friendly solution to enhance the interfacial performance between ultra-thin stainless-steel foil and CFRP laminates.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"301 ","pages":"Article 112517"},"PeriodicalIF":12.7,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143834568","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 biomimetic strategy for improving lubrication performances of modified UHMWPE inspired by the slippery gel release behavior of chia seeds

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2025-04-14 DOI: 10.1016/j.compositesb.2025.112520

Zhanmo Zheng , Conglin Dong , Xiuqin Bai , Chengqing Yuan , Tun Cai

{"title":"A novel biomimetic strategy for improving lubrication performances of modified UHMWPE inspired by the slippery gel release behavior of chia seeds","authors":"Zhanmo Zheng , Conglin Dong , Xiuqin Bai , Chengqing Yuan , Tun Cai","doi":"10.1016/j.compositesb.2025.112520","DOIUrl":"10.1016/j.compositesb.2025.112520","url":null,"abstract":"<div><div>Friction, wear, and their induced vibrations are the major problems observed in water-lubricating polymer components of mechanical equipment, as achieving effective lubricating films remains challenging due to the low viscosity and surface tension of water. Inspired by the self-protection mechanism of chia seeds, which release slippery mucilage under aqueous conditions, a novel biomimetic composite composed of natural chia seed polysaccharide (CSP) and ultrahigh molecular weight polyethylene (UHMWPE) is proposed. Because of its hydrophilicity, CSP within the composite can easily attract water molecules through non-covalent interactions in aqueous conditions, leading to its softening, swelling, and exudation to hydrate and form a gel layer with lubricating and protective effects at the friction interface, which is similar to the behavior of chia seeds in releasing gels. The resultant composite achieves a low coefficient of friction (COF) (below 0.031), which is attributable to the synergistic effect of fluid and hydration lubrication provided by the improvement in hydrophilicity, the increase in viscosity of the water-lubricating medium, and the formation of the hydration lubrication layer. This biomimetic strategy opens up a new avenue for treating the problems of insufficient lubrication, and the proposed composite shows potential for mitigating the friction-induced vibration and noise behaviors of underwater mechanical devices.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"301 ","pages":"Article 112520"},"PeriodicalIF":12.7,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143834565","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