Composites Science and Technology最新文献_第2页

Enhancing the interlaminar behavior and impact damage resistance of CF/PPS composites via interface modification 通过界面改性提高CF/PPS复合材料的层间性能和抗冲击损伤性能

IF 8.3 1区材料科学

Composites Science and Technology Pub Date : 2025-05-20 DOI: 10.1016/j.compscitech.2025.111235

Yu Gao , Jian Chang , Yue Li , Yu Zhang , Jianfeng Zhou , Shu Zhu

{"title":"Enhancing the interlaminar behavior and impact damage resistance of CF/PPS composites via interface modification","authors":"Yu Gao , Jian Chang , Yue Li , Yu Zhang , Jianfeng Zhou , Shu Zhu","doi":"10.1016/j.compscitech.2025.111235","DOIUrl":"10.1016/j.compscitech.2025.111235","url":null,"abstract":"<div><div>The mechanical response of reinforced composite structures to impact loads has proven to be challenging due to increased incidents of failures like interlaminar damage, fiber fractures, and matrix cracks. Notwithstanding the impressive impact resistance of thermoplastic composites, their fracture toughness is somewhat impacted by the fiber-matrix interface interaction. In this study, the interface of carbon fiber (CF) reinforced polyphenylene sulfide (PPS) composites (CF/PPS) were built through coating a thin layer of polyether sulfone (PES) on CFs to enhance interactions between fibers and matrix. The combination of hydrogen bonding between fiber and PES as well as the higher modulus of the PES sizing agent significantly improved the miscibility and interfacial interlocking, resulting in a 40.7 % increase in interlaminar shear strength. Under the same impact energy, the modified composites outpaced the non-modified ones in maximum impact load and rebound impact energy. The \"pyramid\" shape impact destruction seen in CF/PPS composites was absent in modified ones, which also showed a 25 %–33 % higher compression after impact (CAI) value. This underpins the significant increase in impact resistance and enhanced interfacial performance due to interfacial modifications.</div></div>","PeriodicalId":283,"journal":{"name":"Composites Science and Technology","volume":"269 ","pages":"Article 111235"},"PeriodicalIF":8.3,"publicationDate":"2025-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144124434","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 radiation shielding performance of tungsten borides-epoxy composites 增强硼化钨-环氧复合材料的辐射屏蔽性能

IF 8.3 1区材料科学

Composites Science and Technology Pub Date : 2025-05-20 DOI: 10.1016/j.compscitech.2025.111233

Furkan Erdogan, Santiago Bermudez, Reza Mohammadi, Jessika V. Rojas

{"title":"Enhanced radiation shielding performance of tungsten borides-epoxy composites","authors":"Furkan Erdogan, Santiago Bermudez, Reza Mohammadi, Jessika V. Rojas","doi":"10.1016/j.compscitech.2025.111233","DOIUrl":"10.1016/j.compscitech.2025.111233","url":null,"abstract":"<div><div>Epoxy composites were prepared by varying the amounts of tungsten tetraboride, tungsten monoboride, and ditungsten pentaboride as reinforcing microparticles. These composites were subsequently tested for their radiation shielding performance and mechanical properties to evaluate their potential in nuclear applications. Gamma-ray and thermal neutron attenuation capabilities, along with mechanical behavior, were systematically characterized. Gamma-ray measurements showed enhanced shielding with increased tungsten content, particularly at lower photon energies, with tungsten monoboride–epoxy composites exhibiting superior attenuation due to the highest tungsten concentration among the selected borides. Neutron attenuation tests confirmed that increasing filler content reduced neutron transmission effectively. Material's hardness improved with filler content, indicating enhanced load-bearing capacity, while tensile testing revealed increased stiffness but reduced tensile strength and ductility at higher filler contents. The effects of irradiation were also examined, showing that the composites retained mechanical integrity under radiation exposure. Reinforcing epoxy matrices with tungsten borides significantly improved radiation shielding against gamma rays and neutrons while enhancing mechanical performance. These findings highlight the potential of tungsten borides -epoxy composites as lightweight materials for advanced radiation protection applications.</div></div>","PeriodicalId":283,"journal":{"name":"Composites Science and Technology","volume":"269 ","pages":"Article 111233"},"PeriodicalIF":8.3,"publicationDate":"2025-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144123407","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 coupled deep learning and DEM modelling approach for transverse crack prediction in UD-GFRP composites 基于深度学习和DEM的UD-GFRP复合材料横向裂纹预测方法

IF 8.3 1区材料科学

Composites Science and Technology Pub Date : 2025-05-19 DOI: 10.1016/j.compscitech.2025.111234

Zewen Gu , Xiangqing Kong , Jianlin Liu , Xiaoxuan Ding , Xiaonan Hou

{"title":"A coupled deep learning and DEM modelling approach for transverse crack prediction in UD-GFRP composites","authors":"Zewen Gu , Xiangqing Kong , Jianlin Liu , Xiaoxuan Ding , Xiaonan Hou","doi":"10.1016/j.compscitech.2025.111234","DOIUrl":"10.1016/j.compscitech.2025.111234","url":null,"abstract":"<div><div>Glass fibre reinforced polymer (GFRP) composites are widely used in engineering applications due to their exceptional mechanical properties. An efficient surrogate modelling framework is highly demanded for the accurate prediction of cracks in unidirectional glass fibre reinforced polymer (UD-GFRP) composites. In this study, three deep learning models are developed to address the complexities of crack prediction at the microscopic level. Training and testing data are derived from discrete element method (DEM) modelling simulations of randomly generated representative volume elements (RVEs). A deep neural network (DNN) regression model is first constructed to predict the occurrence of the initial crack using input features derived from fibre distribution within RVEs. The model identifies the initial crack by predicting the contact bond with the highest regressed contact force. A second DNN model is developed to predict the location of the subsequent crack by incorporating features related to the position of the initial crack. The performance of the two trained DNN models are evaluated with unseen data, demonstrating and highlighting the increased complexity of the task. To improve computational efficiency and accuracy, a convolutional neural network (CNN) model is introduced for the prediction of initial cracks. By exploiting the microstructural images of GFRP, the CNN model captures spatial hierarchies and local features, enabling direct and accurate crack location prediction. Compared to the physics-based DEM model, the CNN model reduces computational time by several orders of magnitude, providing a scalable solution for full-field crack predictions.</div></div>","PeriodicalId":283,"journal":{"name":"Composites Science and Technology","volume":"269 ","pages":"Article 111234"},"PeriodicalIF":8.3,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144105636","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 electroless metallization of aramid fibers via non-destructive π–π surface engineering for EMI shielding 利用无损π -π表面工程增强芳纶纤维化学金属化的电磁干扰屏蔽

IF 8.3 1区材料科学

Composites Science and Technology Pub Date : 2025-05-19 DOI: 10.1016/j.compscitech.2025.111236

Tianyi Zhang , Jinglun Guo , Shuaijie Liu , Lang Gong , Xiaoyu Hao , Qian Ye , Jingyu Kang , Le Cao , Xuqing Liu

{"title":"Enhanced electroless metallization of aramid fibers via non-destructive π–π surface engineering for EMI shielding","authors":"Tianyi Zhang , Jinglun Guo , Shuaijie Liu , Lang Gong , Xiaoyu Hao , Qian Ye , Jingyu Kang , Le Cao , Xuqing Liu","doi":"10.1016/j.compscitech.2025.111236","DOIUrl":"10.1016/j.compscitech.2025.111236","url":null,"abstract":"<div><div>Electromagnetic pollution has become a growing concern with the rapid expansion of 5G and 6G technologies, creating an urgent need for lightweight, flexible materials that can shield against electromagnetic interference (EMI) while also offering high electrical conductivity, strong mechanical properties, and reliable environmental stability. Aramid fiber-reinforced composites, already widely used in aerospace electronics due to their excellent strength and heat resistance, show significant potential for effective EMI shielding. However, because aramid fibers are chemically inert, it is challenging to achieve strong adhesion between EMI coatings and the fiber surface, which limits practical applications. Although chemical etching can create active sites for metal particle attachment, it often compromises the fibers’ intrinsic mechanical properties. To address this issue, a non-destructive π–π modification method was introduced. This process adds active sites to the otherwise inert fiber surface without damaging the fibers, thereby enabling a uniform and well-controlled electroless metal coating. Composites prepared using this approach display exceptional EMI shielding performance, exceeding 90 dB. Furthermore, computer simulations were conducted to evaluate the feasibility of applying these modified aramid fiber preforms in larger composite structures. The simulation outcomes are consistent with experimental findings, indicating that the dual-metal Cu/Ni@AF composite delivers outstanding EMI shielding performance. Overall, this method offers a new way to safely modify aramid fibers and paves the way for more sustainable, high-performance shielding materials.</div></div>","PeriodicalId":283,"journal":{"name":"Composites Science and Technology","volume":"269 ","pages":"Article 111236"},"PeriodicalIF":8.3,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144124433","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 high-temperature energy storage density in P-type NiOx quantum dots and P(VDF-HFP) composite dielectrics 提高了P型NiOx量子点和P（VDF-HFP）复合电介质的高温储能密度

IF 8.3 1区材料科学

Composites Science and Technology Pub Date : 2025-05-18 DOI: 10.1016/j.compscitech.2025.111230

Cheng Fang , Ziyi Zhang , Jian Wang , Zhanwen Ye , Kaiyuan Li , Luoqi Wu , Xiaobin Feng , Bo Duan , Lijie Dong , Ling Zhou , Zhonghui Shen

{"title":"Enhanced high-temperature energy storage density in P-type NiOx quantum dots and P(VDF-HFP) composite dielectrics","authors":"Cheng Fang , Ziyi Zhang , Jian Wang , Zhanwen Ye , Kaiyuan Li , Luoqi Wu , Xiaobin Feng , Bo Duan , Lijie Dong , Ling Zhou , Zhonghui Shen","doi":"10.1016/j.compscitech.2025.111230","DOIUrl":"10.1016/j.compscitech.2025.111230","url":null,"abstract":"<div><div>The harsh application environment poses higher requirements for the operating temperature of dielectric energy storage capacitors. Suppressing carrier transport at high temperatures is a key method to increase the breakdown field strength (<em>E</em><sub>b</sub>) and the operating temperature of dielectrics. In this paper, low-concentration P-type semiconductor nickel oxide quantum dots (NiO<sub>x</sub> QDs) were surface modified with polydopamine (PDA) and introduced into the polymer matrix, with the aim to capture hot carriers by constructing hole traps, thereby increasing the high-temperature <em>E</em><sub>b</sub> and energy storage density (<em>U</em><sub>dis</sub>) of the polymer. The results confirmed the efficiency of the strategy. At 90 °C, the <em>E</em><sub>b</sub> of the NiO<sub>x</sub>@PDA/P(VDF-HFP) film reached 2242.78 kV/cm, and the <em>U</em><sub>dis</sub> reached 2.94 J/cm<sup>3</sup>, which were 42.41 % and 164.86 % higher than those of the pure P(VDF-HFP) film. Thermal and mechanical analyses indicated that the enhanced <em>E</em><sub>b</sub> and <em>U</em><sub>dis</sub> were mainly attributed to the restriction of the Poole-Frenkel emission within the dielectrics. Together with the enhanced compatibility of the organic-inorganic composite interface, the macro defects of the composites were further suppressed and electrical properties were further increased. This work offers a straightforward and efficient approach for manufacturing high-temperature energy storage dielectrics.</div></div>","PeriodicalId":283,"journal":{"name":"Composites Science and Technology","volume":"269 ","pages":"Article 111230"},"PeriodicalIF":8.3,"publicationDate":"2025-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144098341","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

Magnetic field orientated ionic transport pathway in epoxy solid electrolyte 环氧固体电解质中磁场取向离子输运途径

IF 8.3 1区材料科学

Composites Science and Technology Pub Date : 2025-05-14 DOI: 10.1016/j.compscitech.2025.111229

Jinrui Ye , Jingyue Chen , Wenhao Xie , Hongbo Gu , Qin Lei

{"title":"Magnetic field orientated ionic transport pathway in epoxy solid electrolyte","authors":"Jinrui Ye , Jingyue Chen , Wenhao Xie , Hongbo Gu , Qin Lei","doi":"10.1016/j.compscitech.2025.111229","DOIUrl":"10.1016/j.compscitech.2025.111229","url":null,"abstract":"<div><div>Nowadays, structural energy storage materials achieve the integration of structural load-bearing and storage functions to serve as structures of equipment in the aviation, aerospace, and transportation. However, it's still a great challenge for balancing the mechanical strength and ionic conductivity in the epoxy solid electrolytes. The high ionic conductivity can only be obtained by severely sacrificing its mechanical properties through the formation of porous structures inside. Herein, a multiple-pathway epoxy solid electrolyte with strong mechanical tensile properties and excellent ionic conductivity is fabricated by an innovative method including the magnetic field assisted orientation of Fe<sub>3</sub>O<sub>4</sub> nanoparticles inside the epoxy resin, followed by the ultrasonic acid etching. Finally, the directional Fe<sub>3</sub>O<sub>4</sub> nanoparticles alignment in the epoxy led by the magnetic field has been etched and the solid electrolyte with abundant oriented paths came into being as confirmed in the high-resolution micro-computed tomography. The multiple-path solid electrolyte expresses the comparable mechanical performance with the tensile strength of 78.97 ± 1.06 MPa and elastic modulus of 1.66 ± 0.04 GPa when the magnetic field is 80 mT and Fe<sub>3</sub>O<sub>4</sub> loading of precursor is 3 wt% relative to those of pure epoxy (81.50 ± 0.13 MPa and 2.37 ± 0.06 GPa). The multiple-path solid electrolyte also gained outstanding ionic conductivity up to 1.67 ± 0.13 mS cm<sup>−1</sup>. The combination of mechanical strength and ionic conductivity makes our multiple-path solid electrolyte participant in novel energy storage system.</div></div>","PeriodicalId":283,"journal":{"name":"Composites Science and Technology","volume":"269 ","pages":"Article 111229"},"PeriodicalIF":8.3,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144117004","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 performance for additively manufactured optimal CFRP structures 增材制造CFRP结构性能优化研究

IF 8.3 1区材料科学

Composites Science and Technology Pub Date : 2025-05-13 DOI: 10.1016/j.compscitech.2025.111227

Yanan Xu , Lin Ye , Chi Wu , Jianguang Fang , Guangyong Sun , Yuan Chen , Ziyan Man , Grant P. Steven , Qing Li

{"title":"Enhancing performance for additively manufactured optimal CFRP structures","authors":"Yanan Xu , Lin Ye , Chi Wu , Jianguang Fang , Guangyong Sun , Yuan Chen , Ziyan Man , Grant P. Steven , Qing Li","doi":"10.1016/j.compscitech.2025.111227","DOIUrl":"10.1016/j.compscitech.2025.111227","url":null,"abstract":"<div><div>While additive manufacturing (AM) has been widely applied for carbon fiber reinforced polymer (CFRP) composite structures and exhibited compelling advantages especially in realizing topologically optimized design, there exist certain inherent problems, such as relatively low fiber volume fraction and high porosity, somehow compromising its material properties. This study aims to enhance mechanical performances of optimized 3D printed CFRP structures and develop a vacuum-assisted thermal post-processing technique. First, a level set method is employed to carry out concurrent topological and filament path optimization dedicated to CFRP additive manufacturing. Both the optimized and empirical CFRP structures are fabricated by 3D printing to appraise the advantages of topology optimization that incorporates a fast marching technique with improved manufacturability. Second, to further enhance the structural characteristics, the printed CFRP structures are post-processed with a pressure of 1 atm under different heating conditions. Third, the structures with and without the postprocessing procedures are remodeled and analyzed based on micro-computed tomography (μCT) scan data. It is found that the errors between the remodeled simulations and experimental tests are all below 10 %. It is shown that the topology optimization enables to improve the stiffness per unit mass (SPUM) by 47.0–52.1 %, and vacuum-assisted thermal post-processing can further reduce the structural deformation ranging from 10.8 % to 26.8 %, indicating the superiority of reprocessing of additively manufactured CFRP structures with equivalent material cost.</div></div>","PeriodicalId":283,"journal":{"name":"Composites Science and Technology","volume":"269 ","pages":"Article 111227"},"PeriodicalIF":8.3,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144117003","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

Ni@graphite carbon synergistic reinforcement sites penetrated hierarchical porous carbon boosting PCMs encapsulation and solar-thermal energy storage Ni@graphite碳协同增强位点穿透分层多孔碳，促进pcm封装和太阳能热能储存

IF 8.3 1区材料科学

Composites Science and Technology Pub Date : 2025-05-12 DOI: 10.1016/j.compscitech.2025.111228

Guanxu Zhang , Sihua Ren , Cheng Dong , Wenjun Dong , Qingyang Du , Xiao Chen , Ang Li

{"title":"Ni@graphite carbon synergistic reinforcement sites penetrated hierarchical porous carbon boosting PCMs encapsulation and solar-thermal energy storage","authors":"Guanxu Zhang , Sihua Ren , Cheng Dong , Wenjun Dong , Qingyang Du , Xiao Chen , Ang Li","doi":"10.1016/j.compscitech.2025.111228","DOIUrl":"10.1016/j.compscitech.2025.111228","url":null,"abstract":"<div><div>Nano-carbon materials, owing to the sp<sup>2</sup>-hybridized carbon and highly porous structure, exhibit significant potential for incorporating phase change materials (PCMs) in solar energy storage and utilization. However, this potential is limited by their suboptimal photothermal responsiveness and the absence of hierarchical pore structures. Herein, we propose a dynamic regulation strategy to fabricate a Ni@graphite carbon-penetrated hierarchical carbon (Ni@C/C) structure for encapsulation of octadecanol (ODA) molecules. Ni@C active sites anchored within the hierarchical carbon framework rapidly capture photons. The coupling between Ni<sup>0</sup> nanoparticles (NPs) and graphitized carbon enhances the electric field distribution around the Ni<sup>0</sup> NPs, significantly improving photothermal performance. As a result, ODA/Ni@C/C demonstrated a remarkable photothermal conversion efficiency of 94.5 % under simulated one-sun irradiation. Notably, ODA/Ni@C/C exhibits a rapid response to ambient temperature changes, and sustains heat release over an extended period across a broad temperature range, demonstrating significant potential for applications in heat therapy masks and lithium-ion battery thermal management systems. This work provides both theoretical insights and practical guidance for the targeted design and preparation of advanced nano-carbon materials-based phase change composites.</div></div>","PeriodicalId":283,"journal":{"name":"Composites Science and Technology","volume":"268 ","pages":"Article 111228"},"PeriodicalIF":8.3,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144072121","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

Spatio-temporal prediction of curing-induced deformation for composite structures using a hybrid CNN-LSTM and finite element approach 基于CNN-LSTM和有限元的复合材料结构固化变形时空预测

IF 8.3 1区材料科学

Composites Science and Technology Pub Date : 2025-05-11 DOI: 10.1016/j.compscitech.2025.111225

Ying Deng , Zefu Li , Jie Zhi , Yonglin Chen , Jiping Chen , Weidong Yang , Yan Li

{"title":"Spatio-temporal prediction of curing-induced deformation for composite structures using a hybrid CNN-LSTM and finite element approach","authors":"Ying Deng , Zefu Li , Jie Zhi , Yonglin Chen , Jiping Chen , Weidong Yang , Yan Li","doi":"10.1016/j.compscitech.2025.111225","DOIUrl":"10.1016/j.compscitech.2025.111225","url":null,"abstract":"<div><div>Coordinated control of structural accuracy and mechanical properties is the key to composites manufacturing and the prerequisite for aerospace applications. Accurate and efficient prediction of curing-induced deformation is critical to minimizing process-induced defects and ensuring dimensional stability in fiber-reinforced polymer (FRP) composites manufacturing. Whereas traditional equation-based modeling requires extensive computational resources, data-driven surrogate models leverage machine learning to rapidly achieve accurate distortion prediction. In this study, we explored a novel spatio-temporal prediction model that incorporates the finite element (FE) method with a deep learning framework to efficiently forecast the curing-induced deformation evolution of composite structures. Herein, an integrated convolutional neural network (CNN) and long short-term memory (LSTM) network approach was developed to capture both the space-distributed and time-resolved deformation. The FE method combined with the bridging model was established to simulate curing process and generate a comprehensive database containing tensors of temperature, degree of cure, initial coordinate, stress and deformation during curing. In contrast to conventional rapid prediction models that can only calculate the deformation after demolding, the primary focus in developing this strategy lies in characterizing the spatio-temporal variations of warpage. The validations of composite laminates and sandwich structures with different stacking sequences confirm the model's accuracy in predicting curing-induced deformations. The proposed framework provides a promising approach to predict curing-induced warpage evolution for optimizing the process and precisely controlling part quality.</div></div>","PeriodicalId":283,"journal":{"name":"Composites Science and Technology","volume":"268 ","pages":"Article 111225"},"PeriodicalIF":8.3,"publicationDate":"2025-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144072123","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

Macrocycle-based host-guest interactions improving electrical energy storage capability of all-organic dielectric composites 基于大循环的主客体相互作用提高了全有机介电复合材料的储能性能

IF 8.3 1区材料科学

Composites Science and Technology Pub Date : 2025-05-10 DOI: 10.1016/j.compscitech.2025.111226

Hao Zhong , Hao Tan , Liwen Deng , Hang Luo , Ru Guo , Sheng Chen

{"title":"Macrocycle-based host-guest interactions improving electrical energy storage capability of all-organic dielectric composites","authors":"Hao Zhong , Hao Tan , Liwen Deng , Hang Luo , Ru Guo , Sheng Chen","doi":"10.1016/j.compscitech.2025.111226","DOIUrl":"10.1016/j.compscitech.2025.111226","url":null,"abstract":"<div><div>Polymer films capacitors are widely used in the electrical and electronic fields, and much effort has been devoted to exploiting the high temperature resistant polymer dielectrics with superior discharged energy density (<em>U</em><sub><em>d</em></sub>) and efficiency (<em>η</em>) in harsh environments. The addition of organic molecular fillers is good way to improve the energy storage properties of dielectric polymers. In this work, for the first time, the host organic filler (methyl β-cyclodextrin, M-β-CD) is embedded into the guested polynorbornene dielectrics containing amantadine side-chain (PATMD). All-organic polymeric dielectric composites (M-β-CD/PATMD) is obtained based on the host-guest interaction between PATMD matrix and M-β-CD filler. The experiment results showed that the introduction of host filler can obviously enhance the <em>U</em><sub><em>d</em></sub> and <em>η</em> at high temperature and high field because inclusion complex can simultaneously increase thermal performance and trap depth. The maximum <em>U</em><sub><em>d</em></sub> of 0.1 wt% M-β-CD/PATMD is 7.4 J/cm<sup>2</sup>, maintaining the <em>η</em> of above 90 %. Importantly, at 150 °C and 200 °C, the largest <em>U</em><sub><em>d</em></sub> of 4.3 J/cm<sup>2</sup> and 3.6 J/cm<sup>2</sup> is achieved respectively, and the corresponding <em>η</em> is 80 % and 74 %, which is both much higher than that of pure PATMD. This work proves that the cyclodextrin-based host-guest design method is a good effective strategy for the preparation of high performance polymer dielectrics.</div></div>","PeriodicalId":283,"journal":{"name":"Composites Science and Technology","volume":"268 ","pages":"Article 111226"},"PeriodicalIF":8.3,"publicationDate":"2025-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143937051","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