Polymer Composites最新文献

{"title":"Direct Ink Writing State Prediction Based on Integrated Machine Learning Model Combining Materials Properties and Printing Parameters","authors":"Xiaoquan Shi, Sai Liu, Ruixuan Wang, Haitao Liu, Tian Haiying, Yazhou Sun","doi":"10.1002/pc.70451","DOIUrl":"https://doi.org/10.1002/pc.70451","url":null,"abstract":"ABSTRACT BaTiO 3 /Polydimethylsiloxane (BaTiO 3 /PDMS) polymer‐based ceramic composites are favored for their exceptional piezoelectric and ferroelectric properties. Although direct ink writing 3D printing provides a viable approach for fabricating geometrically complex composite structures, the printability of such composites fundamentally relies on synergistic optimization of ink rheological behavior and deposition parameters. This study proposes a machine learning‐driven framework that establishes an integrated printing state prediction model combining material properties and process parameters. The rheological properties of composite materials with varying matrix ratios and ceramic mass fractions are studied, and the printing state is analyzed under different process parameters. A particle swarm optimization‐enhanced support vector machine (PSO‐SVM) algorithm was developed using 669 groups of experiments for training and testing, achieving 92.48% prediction accuracy in printability assessment through intelligent parameter optimization of penalty factors and kernel function widths in the testing set. The validity of the integrated material‐printing parameters machine learning model was further demonstrated through the successful fabrication of representative structures, demonstrating its robust predictive performance.","PeriodicalId":510403,"journal":{"name":"Polymer Composites","volume":"47 5","pages":"4637-4650"},"PeriodicalIF":0.0,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147884606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Regulating Effect of Cellulose Nanofibers on the Structure and Properties of Polylactic Acid/Bio‐Nylon 11 Composites","authors":"J. Ou, Chunlan Feng, Yehua Shao, Zhou Ni, Qinling Wang, Xiaofei Yan","doi":"10.1002/pc.70500","DOIUrl":"https://doi.org/10.1002/pc.70500","url":null,"abstract":"ABSTRACT Cellulose nanofibers (CNFs) selectively localize in the polyamide 11 (PA11) phase of polylactic acid (PLA)/PA11 immiscible blends, regardless of whether PA11 is the continuous or dispersed phase, due to favorable interfacial interactions, as confirmed by morphological and thermodynamic analysis. CNFs‐reinforced composites were fabricated via melt processing using functional masterbatches (PLA‐g‐CNFs and PA11‐g‐CNFs). At low loadings (0.5–1.0 wt%), CNFs significantly enhance flexural strength and thermal stability, with improved stress transfer and restricted polymer chain mobility contributing to the performance gains. In contrast, higher CNFs loading (up to 3.0 wt%) leads to nanofiller agglomeration, acting as stress concentrators and resulting in reduced tensile strength and ductility. The use of functional masterbatches enables precise control over CNFs dispersion and interfacial design, allowing optimal composite performance through synergistic regulation of filler content and phase localization. Microstructural observations confirm uniform CNFs distribution at low loadings and increasing heterogeneity at higher concentrations. Crystallization behavior analysis reveals accelerated nucleation kinetics in CNF‐containing systems. Overall, the incorporation of low‐loading CNFs via tailored masterbatches effectively improves the stiffness, strength, and thermal resilience of immiscible PLA/PA11 biocomposites, demonstrating a viable strategy for high‐performance sustainable materials.","PeriodicalId":510403,"journal":{"name":"Polymer Composites","volume":"47 6","pages":"5430-5445"},"PeriodicalIF":0.0,"publicationDate":"2025-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147910348","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ultrasonically Assisted Green Exfoliation of Boron Nitride Nanosheets via Konjac Glucomannan for High‐Performance Thermally Conductive Interface Composites","authors":"Siyuan Xu, Chuanguo Ma, Aiqin Zhang, Ke Xu, Yuqi Liu, Shaoning Lu","doi":"10.1002/pc.70465","DOIUrl":"https://doi.org/10.1002/pc.70465","url":null,"abstract":"ABSTRACT The effective exfoliation of hexagonal boron nitride and uniform dispersion of boron nitride nanosheets (BNNS) in polymer matrices remain critical challenges for enhancing the thermal conductivity of thermal interface materials. In this study, natural konjac glucomannan (KGM) biopolymer was employed for the first time to facilitate ultrasonic exfoliation of BNNS, achieving concurrent high‐efficiency exfoliation and in situ surface modification. This method presents a simple, environmentally benign, and efficient approach, serving as a sustainable alternative to conventional organic solvent‐assisted liquid‐phase exfoliation techniques. The stable BNNS/KGM dispersion underwent vacuum filtration followed by hot alkaline gelation to fabricate flexible thermally conductive composite films. The inherent hot alkaline gelation characteristics of KGM significantly streamlined the film fabrication process. Within the composite structure, BNNS exhibited an ordered lamellar stacking morphology with in‐plane orientation, which substantially improved the thermal conduction pathways. At BNNS loadings of 33 wt% and 50 wt%, the composites demonstrated exceptional in‐plane thermal conductivities of 9.80 and 12.14 W m −1 K −1 , respectively, showing outstanding thermal management capabilities in practical device testing. This work not only expands the innovation application of KGM in thermally conductive composites but also gives a novel selection for nanoparticle preparation through bio‐based surface modification strategies.","PeriodicalId":510403,"journal":{"name":"Polymer Composites","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147332093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tunable Secondary Structures in Silk Fibroin/Graphene Oxide Composites","authors":"Min‐Rou Woon, Yuanxiang Fu, Tow‐Jie Lok, Jie‐Wei Wong, Kai‐Yi Lim, Evianie Bingak Edward, Nur Aina Farhana Mat Nasir, Zhi‐Xian Lim, Yan‐Ji Tan, Yaoting Xue, Tuck‐Whye Wong, Jia Tee Low, Xuxu Yang","doi":"10.1002/pc.70430","DOIUrl":"https://doi.org/10.1002/pc.70430","url":null,"abstract":"ABSTRACT Achieving homogeneous dispersion of graphene oxide (GO) within silk fibroin (SF) matrices remains a significant challenge due to solvent incompatibility and GO aggregation. In this study, SF‐GO composite films were fabricated using a binary solvent system comprising 1‐butyl‐3‐methylimidazolium chloride (BMIM Cl), an ionic liquid (IL) and dimethyl sulfoxide (DMSO). BMIM Cl contains an imidazolium cation (BMIM + ) and chloride anion (Cl − ), which are effective in disrupting the hydrogen bonds in SF's β‐sheet regions, promoting the transition to a more flexible random coil or α‐helical conformation. This structure also enhances the compatibility of BMIM Cl with the oxygenated functional groups on GO. DMSO reduces solution viscosity and prevents GO restacking, thus enabling homogeneous GO dispersion and controlled modulation of SF's secondary structure. At low GO loading (0.1 wt. %), π–π stacking, hydrogen bonding, and hydrophobic interactions facilitated β‐sheet formation, leading to composites with enhanced mechanical strength, increased elongation at break (26.12% ± 1.64%), superior flexibility, and improved thermal stability. The improvement was found to correlate closely with molecular alignment and interfacial interaction strength. This study highlights the importance of nanofiller dispersion and secondary structure control in engineering high‐performance biopolymer nanocomposites, with potential for biomedical, flexible electronics, and sustainable packaging applications.","PeriodicalId":510403,"journal":{"name":"Polymer Composites","volume":"47 5","pages":"4358-4370"},"PeriodicalIF":0.0,"publicationDate":"2025-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/pc.70430","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147920922","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Polyethyleneimine‐Modified Cellulose Nanofibers for Toughening Acid‐Cured Epoxy Resins","authors":"Guangming Zhou, Simiao Yu, Lihu Fu, Bingyan Yu, Tao Liu, Zian Xu, Jie Liu, Ning Qiao, Gang Lu","doi":"10.1002/pc.70452","DOIUrl":"https://doi.org/10.1002/pc.70452","url":null,"abstract":"ABSTRACT Weak interfacial bonding between the two phases limited the toughening efficacy of carboxylated cellulose nanofibers (CNF‐C) on epoxy resin. To address this interfacial incompatibility, surface modification of CNF‐C was implemented through polyethyleneimine (PEI) functionalization. The toughening mechanism of PEI‐modified CNF‐C was systematically investigated through Fourier transform infrared spectroscopy (FT‐IR), scanning electron microscopy (SEM), and dynamic mechanical analysis (DMA). Optimal composite performance was achieved at a CNF‐C:PEI mass ratio of 1:1, where the impact strength of the epoxy resin increased significantly from 15.7 to 37.2 kJ/m 2 , representing a 136.9% enhancement. At the same time, the effect of using high molecular weight PEI is significantly higher than that of low molecular weight PEI. The toughening mechanism analysis revealed that stress dispersion and transfer were significantly enhanced by the long‐chain PEI structure, while the amine groups on PEI were found to participate in the epoxy‐curing reaction. Through these dual mechanisms, the interfacial bonding strength of CNF‐C was effectively reinforced. This systematic investigation provided both theoretical validation and experimental evidence to support the application of CNF‐C in composite materials.","PeriodicalId":510403,"journal":{"name":"Polymer Composites","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147330656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fabrication of High‐Performance, High‐Filler‐Content Bamboo Fiber/Epoxy Resin Sustainable Composites via Aqueous‐Phase Processing","authors":"Xiao Li, Yanhua Kang, Jian Chen, Zhaozhe Yang, Guomin Wu, Zhenwu Kong, Guifeng Liu, Can Jin","doi":"10.1002/pc.70450","DOIUrl":"https://doi.org/10.1002/pc.70450","url":null,"abstract":"ABSTRACT Bamboo fiber (BF) reinforced epoxy resin (EP) composites suffer from poor interfacial compatibility and uneven dispersion at high filler levels, restricting the further improvement of the mechanical properties of BF/EP composites. This study proposes a green and novel process for preparing composites based on an aqueous system, which enables effective dispersion of BF at high filler content and uniform integration with EP. BF is simply mixed with waterborne epoxy resin (WEP), and a hot‐pressing molding process is used to prepare composite materials with high BF filler. The effects of fiber contents and resin types on the properties of the composites are investigated. At 80 wt% BF, the mechanical properties of the composite are optimized, with flexural strength and tensile strength of 124 and 53 MPa, respectively. This research provides a viable solution for the green and low‐cost preparation of high‐fiber‐content composites, which shows great potential application in the fields of construction, automotive interiors, and sports equipment.","PeriodicalId":510403,"journal":{"name":"Polymer Composites","volume":"47 5","pages":"4624-4636"},"PeriodicalIF":0.0,"publicationDate":"2025-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/pc.70450","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147903056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Improved Interlaminar Fracture Toughness of Carbon Fiber/Epoxy/Core‐Shell Rubber Composites by Multiscale Toughening Mechanisms","authors":"Fukang Li, Ning Ding, Jean Jacques Kouadjo Tchekwagep, Martin Pengou, Hervé Kouamo Tchakouté, Qiuyue Ding, Nan Hou, Huixia Xu","doi":"10.1002/pc.70368","DOIUrl":"https://doi.org/10.1002/pc.70368","url":null,"abstract":"ABSTRACT Carbon fiber reinforced polymers (CFRP) composites, prized for their outstanding mechanical properties, have garnered extensive applications across critical industries including aerospace, transportation, new energy systems, and power infrastructure. However, under increasingly demanding service environments, improving the interlaminar fracture toughness of CFRP composites has become a pivotal challenge to ensure structural integrity and longevity. The present work presents an effective design strategy to address this issue for the carbon fiber/epoxy/core‐shell rubber composite by integrating multi‐scale reinforcements. The mechanical performance of specimens with different compositions was systematically analyzed. Synergistic multi‐scale toughening mechanisms were rigorously elucidated through fracture surface morphology analysis and correlative mechanical data interpretation. The results demonstrate that incorporating short carbon fibers (SCF) into CFRP (i) and adding core‐shell rubber (CSR) to CFRP (ii) both significantly enhance the toughness. CFRP (iii), which contains both SCF and CSR, exhibits an even more pronounced toughening effect. The subsequent grafting of carboxylated multi‐walled carbon nanotubes (MWCNTs‐COOH) onto SCF, resulting in CFRP (iv) with SCF‐CNTs and CSR mixed, demonstrates superior interlaminar fracture toughness compared to CFRP (iii). Specifically, the and of CFRP (iv) increase by 12.89% and 15.46%, respectively, compared to CFRP (iii). This improvement is attributed to the strengthened interfacial bonding between MWCNTs‐COOH and the matrix through mechanical interlocking, which enhances fiber bridging and the effects of core‐shell rubber. This multi‐scale reinforcement paradigm provides critical insights into the design of damage‐tolerant CFRP composites for extreme operational scenarios, advancing their deployment in next‐generation engineering systems subjected to complex mechanical loads.","PeriodicalId":510403,"journal":{"name":"Polymer Composites","volume":"47 4","pages":"3486-3499"},"PeriodicalIF":0.0,"publicationDate":"2025-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/pc.70368","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147330467","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing Interfacial Adhesion Between Copper Mesh Heating Element and Polyamide 66 in Induction Welding of Carbon Fiber/Polyamide 66 Composites via Ozone Treatment","authors":"Tenghui He, Shengming Liang, Xueyan Zhang, Jianhui Su, Chunlin Qin, Gengxiang Yang, Caiwang Tan, Fuyun Liu, Bo Chen, Xiaoguo Song","doi":"10.1002/pc.70445","DOIUrl":"https://doi.org/10.1002/pc.70445","url":null,"abstract":"ABSTRACT Induction welding of thermoplastic composites has emerged as an effective technique for lightweight structural assembly, where metallic mesh heating elements (HEs) enable localized and controllable heating. However, untreated HE exhibits poor compatibility with polymer matrices, resulting in weak interfacial adhesion. In this study, copper mesh HEs were subjected to ozone oxidation treatment for various hours to modify surface characteristics and improve bonding with carbon fiber/polyamide 66 (CF/PA66) composites during induction welding. Surface analysis revealed the progressive formation of Cu 2 O, porous CuO, and Cu 2 (OH) 2 CO 3 layers, which enhanced surface roughness and free energy. The joint fabricated with 5 h treated HE exhibited a maximum lap shear strength (LSS) of 44.8 MPa, showing a 34.9% increase over the untreated sample, attributed to improved wettability and mechanical interlocking from the porous CuO layer. However, excessive oxidation (≥ 7 h) caused decomposition of Cu 2 (OH) 2 CO 3 during welding, generating gases that formed interfacial voids and degraded joint quality. Cross‐sectional and fractographic analysis confirmed a deeper elemental interdiffusion zone and a transition in failure mode from HE debonding failure to HE tearing failure under optimal conditions. These findings demonstrated that ozone treatment of copper mesh was an effective strategy to enhance interfacial bonding performance in thermoplastic composite induction welding.","PeriodicalId":510403,"journal":{"name":"Polymer Composites","volume":"47 5","pages":"4558-4573"},"PeriodicalIF":0.0,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147912258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Uniform Dispersion and Interfacial Reinforcement of Ionic Liquid‐Modified Carbon Nanotubes/Silica in High‐Performance Natural Rubber Composites","authors":"Meng Wang, Songquan Li, Peixiu Tian, Yongzhong Jin, Fuguo Li, Guixiang Qin, Fengyi Wu, Kaiyi Lin","doi":"10.1002/pc.70446","DOIUrl":"https://doi.org/10.1002/pc.70446","url":null,"abstract":"ABSTRACT Achieving effective dispersion of carbon nanotubes (CNTs) within rubber matrices persists as a major impediment to their industrial‐scale utilization. This investigation innovatively utilized the ionic liquid (IL) 1‐butyl‐3‐methylimidazolium chloride to functionalize CNTs, thereby markedly improving their dispersion state and interfacial bonding with a natural rubber (NR) phase. This enhancement led to substantial improvements in the mechanical performance of the resulting composites. Incorporation of 8 phr IL‐modified CNTs into a silica/NR composite system yielded a 300% modulus of 15.98 MPa, a tear strength of 84.41 kN/m, and a relative volume wear resistance of 190.88 mm 3 . These values correspond to significant enhancements of 22.38%, 53.70%, and 10.51%, respectively relative to composites containing pristine CNTs. Studies confirmed that the performance gains are primarily ascribed to the superior dispersion and reinforced interfacial adhesion of the IL‐modified CNTs within the rubber matrix. This optimized morphology enables efficient load transfer, critically boosting the composite reinforcement efficiency. This work underscores the pivotal function of ionic liquids in ameliorating nanofiller dispersion, presenting an innovative methodology for designing and fabricating high‐performance rubber nanocomposites.","PeriodicalId":510403,"journal":{"name":"Polymer Composites","volume":"47 5","pages":"4574-4585"},"PeriodicalIF":0.0,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147882836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Improving the Mechanical Properties and Wear Resistance of Rubber/Graphene Composites Through Surface Modification of Carbon Black","authors":"Xinyu Wang, Shuaishuai Cheng, Zhizhou Hao, Haoyu Duan, Bosong Li, Guizhe Zhao, Yaqing Liu, Xiaoyuan Duan","doi":"10.1002/pc.70432","DOIUrl":"https://doi.org/10.1002/pc.70432","url":null,"abstract":"ABSTRACT Carbon black (CB) was employed as a traditional reinforcing filler for rubber, and filler agglomeration was frequently encountered in rubber‐based composites, which was caused by inadequate interfacial compatibility. Improving the agglomeration and interfacial compatibility of CB to realize the effective enhancement of the overall performance of rubber composites is still the main challenge. In this study, environmentally friendly waterborne polyurethane (WPU) was introduced to functionalize the CB, and WPU encapsulated carbon black (ECB) core‐shell structures with multiple interfacial interactions were systematically constructed to solve the problem of CB agglomeration in NR composites. Due to the “physical coating‐hydrogen bonding‐chemical bonding” interfacial structure formed between the WPU molecules on the ECB surface and the NR molecular chains, the dispersibility of ECB fillers in NR and the interfacial interaction with NR molecular chains were significantly enhanced. Meanwhile, the excellent dispersibility of CB also promoted the synergistic effect of forming the “NR‐GO‐ECB” interfacial structure with graphene oxide (GO). Compared with the uncoated NR/GO/CB composites, the NR/GO/ECB composites exhibited superior mechanical properties and wear resistance, with their tensile strength, tear strength and wear resistance increased by 12.2%, 41.9% and 18.4% respectively. What's more, NR composite models were constructed by molecular dynamics simulation method, which systematically elucidated the enhancement mechanism of interfacial compatibility at the filler–matrix on the mechanical properties from the microscopic level. Hence, this work is anticipated to offer fresh insights into tailoring the interface between CB and NR, to introduce alternative routes toward green, energy‐efficient, and high‐performance rubber composites.","PeriodicalId":510403,"journal":{"name":"Polymer Composites","volume":"47 5","pages":"4386-4397"},"PeriodicalIF":0.0,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147904511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}