Polymer Composites最新文献_第8页

Preparation of Silica Reinforced Vinyltriethoxysilane Active Grafted Styrene Butadiene Rubber Composites 二氧化硅增强乙烯基三乙基氧基硅烷活性接枝丁苯橡胶复合材料的制备

Polymer Composites Pub Date : 2025-08-26 DOI: 10.1002/pc.70321

Changjie Yin, Boyu Wang, Huimin Li, Dezhong Yin, Qiuyu Zhang

{"title":"Preparation of Silica Reinforced Vinyltriethoxysilane Active Grafted Styrene Butadiene Rubber Composites","authors":"Changjie Yin, Boyu Wang, Huimin Li, Dezhong Yin, Qiuyu Zhang","doi":"10.1002/pc.70321","DOIUrl":"https://doi.org/10.1002/pc.70321","url":null,"abstract":"ABSTRACT The vinyltriethoxysilane grafted styrene‐butadiene rubber (SBR‐g‐VTES) was successfully synthesized using the ARGET‐ATRP (electron transfer activated regenerative atom transfer radical polymerization) method in latex. Then, SBR‐g‐VTES/SiO 2 composites were prepared without a silane coupling agent. The effect of various reaction conditions on the grafted yield, properties, and morphology of SBR‐g‐VTES was investigated, and the influence of different silica amounts on the properties of SBR‐g‐VTES/SiO 2 composites was also discussed. The polymerization process conformed to the characteristics of active/controllable. The reaction condition SBR/CuBr 2 /TPMA/VC (100.00/0.0010/0.0015/0.30) was chosen. The tensile strength of SBR‐g‐VTES reached 4.20 MPa, and the tear strength reached 40.00 MPa. When the amount of silica was 30 wt%, the bound rubber, tensile strength, tear strength, and hardness of SBR‐g‐VTES/SiO 2 composites reached 78%, 12.30 MPa, 97 MPa, and 91 shore A, respectively. The Akron abrasion is 0.03 cm 3 ; a good balance between the wet sliding resistance and the low rolling resistance of the material can be realized. Meanwhile, SEM analysis results showed that the compatibility between silica and the rubber matrix was greatly improved by grafting VTES; SiO 2 was uniformly dispersed in the SBR matrix with a regular round shape.","PeriodicalId":510403,"journal":{"name":"Polymer Composites","volume":"47 3","pages":"2749-2761"},"PeriodicalIF":0.0,"publicationDate":"2025-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147919518","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}

引用次数: 1

Development of Flexible Lead‐Free Natural Rubber‐Based Composites With High Gamma Ray Shielding Efficiency 具有高屏蔽伽马射线效率的柔性无铅天然橡胶基复合材料的研制

Polymer Composites Pub Date : 2025-08-25 DOI: 10.1002/pc.70333

Xihong Xu, Yujie Liao, Li Zhang, Rui Jiang, Chao Ye, Wen‐Bin Yang, Yuanlin Zhou, Yongsheng Li, Changyu Tang

{"title":"Development of Flexible Lead‐Free Natural Rubber‐Based Composites With High Gamma Ray Shielding Efficiency","authors":"Xihong Xu, Yujie Liao, Li Zhang, Rui Jiang, Chao Ye, Wen‐Bin Yang, Yuanlin Zhou, Yongsheng Li, Changyu Tang","doi":"10.1002/pc.70333","DOIUrl":"https://doi.org/10.1002/pc.70333","url":null,"abstract":"ABSTRACT Gamma rays pose a significant threat to the health of nuclear personnel. Traditional gamma‐ray protection materials, primarily composed of lead‐based polymers, exhibit poor flexibility and toxic properties, among other limitations. These materials restrict personnel movement and may lead to health issues with prolonged use due to their toxicity. In this study, we developed a flexible composite material with favorable mechanical properties, fatigue resistance, and excellent radiation protection capabilities by incorporating micron‐sized bismuth (Bi) into natural rubber through an open‐mill mixing process. We characterized the effects of Bi content on the microstructure, vulcanization behavior, mechanical properties, and radiation shielding performance of the composite. Scanning electron microscopy was employed to examine the microstructure, revealing that Bi was uniformly dispersed within the natural rubber matrix. By investigating the vulcanization behavior, we have achieved excellent mechanical properties. The tensile strength of a filler content of 85% can reach 7.61 MPa, and it maintains excellent puncture resistance after 1000 cycles of 100% elongation, with the deformation remaining at around 7%. This composite achieved a radiation shielding efficiency of 70.0%, corresponding to a lead equivalent of 0.290 mmPb under 118 keV x‐rays. Compared to other lead‐free rubber‐based radiation protection materials available in the market, its radiation protection performance is significantly enhanced.","PeriodicalId":510403,"journal":{"name":"Polymer Composites","volume":"47 4","pages":"3077-3087"},"PeriodicalIF":0.0,"publicationDate":"2025-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147917289","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}

引用次数: 1

Enhanced Sustained‐Release Antibacterial Activity in PBAT Composite Films via Ultrasound‐Freezing Pretreatment of Bamboo Fiber 超声波冷冻预处理竹纤维增强PBAT复合膜的缓释抗菌活性

Polymer Composites Pub Date : 2025-08-21 DOI: 10.1002/pc.70313

Shengqi Zhan, Huaming Zheng, Sungsoon Mo, Ning Zhuang, Can Zhang, Xueliang Jiang

{"title":"Enhanced Sustained‐Release Antibacterial Activity in <scp>PBAT</scp> Composite Films via Ultrasound‐Freezing Pretreatment of Bamboo Fiber","authors":"Shengqi Zhan, Huaming Zheng, Sungsoon Mo, Ning Zhuang, Can Zhang, Xueliang Jiang","doi":"10.1002/pc.70313","DOIUrl":"https://doi.org/10.1002/pc.70313","url":null,"abstract":"ABSTRACT Enhancing the functionality of biodegradable packaging is key to driving its replacement of conventional plastics. In this work, we employed ultrasound and ultra‐low‐temperature freezing technology to pretreat bamboo fiber (BF), resulting in a carrier with significantly enhanced specific surface area and pore volume to effectively improve the loading capacity of cinnamon essential oil (CEO). Poly(butylene adipate‐co‐terephthalate) (PBAT) was used as a matrix; the BFs/PBAT/CEO film was produced by utilizing melt extrusion and blow molding processes. The addition of BF not only served as a carrier for CEO but also significantly accelerated the film's degradation. Brunauer–Emmett–Teller (BET), Scanning Electron Microscopy (SEM), Fourier Transform Infrared Spectroscopy (FTIR), Atomic Force Microscopy (AFM) and Thermogravimetric Analysis (TGA) were employed to investigate the morphology, structure, and sustained release of the CEO. The pretreated BF has a significant increase in surface area (20.37 m 2 /g) and pore volume (0.1619 cm 3 /g). Moreover, the BFs/PBAT/CEO film has a higher loading capacity (2.6%) for CEO compared to untreated BF via the vacuum‐assisted physical loading. The produced films have irregular shapes and embossment on the surface, representing an excellent Tensile Strength (TS) (31.003 MPa) and Elongation at Break (EAB) (376.599%). Meanwhile, the flexible films show outstanding antimicrobial activity against both Staphylococcus aureus and Escherichia coli in contact as well as non‐contact conditions. The aforementioned properties of BFs/PBAT/CEO films enable their application in tofu packaging, achieving significant preservation efficacy with a notable extension of shelf life.","PeriodicalId":510403,"journal":{"name":"Polymer Composites","volume":"47 3","pages":"2637-2650"},"PeriodicalIF":0.0,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147334202","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}

引用次数: 1

Sustainable Enhancement of Carbon Fiber/Epoxy Interface via Eco‐Friendly MPN / PEI co‐Deposition: A Synergistic Approach Integrating Metal Polyphenol Networks and Bio‐Based Coatings 通过环保MPN / PEI共沉积可持续增强碳纤维/环氧树脂界面：金属多酚网络和生物基涂层的协同方法

Polymer Composites Pub Date : 2025-08-20 DOI: 10.1002/pc.70303

Yining Wang, Anqi Xia, Kaining Zhang, Zhiqiang Yao, Dongzhi Wang

{"title":"Sustainable Enhancement of Carbon Fiber/Epoxy Interface via Eco‐Friendly <scp>MPN</scp> / <scp>PEI</scp> co‐Deposition: A Synergistic Approach Integrating Metal Polyphenol Networks and Bio‐Based Coatings","authors":"Yining Wang, Anqi Xia, Kaining Zhang, Zhiqiang Yao, Dongzhi Wang","doi":"10.1002/pc.70303","DOIUrl":"https://doi.org/10.1002/pc.70303","url":null,"abstract":"ABSTRACT At present, there have been numerous studies on the surface modification of carbon fibers (CF); however, there are still problems such as toxic reagents and complex modification processes. This study proposes an environmentally benign modification strategy featuring mild reaction conditions and high efficiency, aiming to enhance both the interfacial bonding capacity between CF and epoxy resin matrices and the resultant mechanical performance. The metal polyphenol networks (MPN) were synthesized through coordination between tannic acid (TA) and Fe 3+ ions, which were subsequently co‐deposited with polyethyleneimine (PEI) via phenol‐amine conjugation to construct a hybrid MPN/PEI coating on fiber surfaces. The effect of the mass ratio of MPN to PEI on the deposition process was investigated. Maximum interfacial enhancement was achieved at an optimal MPN:PEI mass ratio of 1:2, as evidenced by comprehensive characterization. The interlaminar shear strength (ILSS), interfacial shear strength (IFSS), flexural strength, and transverse fiber bundles tensile strength (TFBT) of the composites were 84.17 MPa, 81.27 MPa, 1215.68 MPa, and 38.62 MPa, respectively, which were increased by 52.15%, 66.71%, 126.89%, and 89.97%, respectively, compared to the untreated CF composites. The use of biological materials for simple and efficient deposition provides a new idea for CF surface modification.","PeriodicalId":510403,"journal":{"name":"Polymer Composites","volume":"47 3","pages":"2525-2536"},"PeriodicalIF":0.0,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147918766","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}

引用次数: 1

Synergistically Reinforced Nanocomposite Leather Coatings: Multiphase Copolymer Systems Enhanced by Hydrotalcite Nanosheets and Aramid Nanofibers 协同增强纳米复合皮革涂层：由水滑石纳米片和芳纶纳米纤维增强的多相共聚物体系

Polymer Composites Pub Date : 2025-08-19 DOI: 10.1002/pc.70342

Dingfeng Gao, Hui Pan, Gaohui Wang, Xiaodong Wang

{"title":"Synergistically Reinforced Nanocomposite Leather Coatings: Multiphase Copolymer Systems Enhanced by Hydrotalcite Nanosheets and Aramid Nanofibers","authors":"Dingfeng Gao, Hui Pan, Gaohui Wang, Xiaodong Wang","doi":"10.1002/pc.70342","DOIUrl":"https://doi.org/10.1002/pc.70342","url":null,"abstract":"ABSTRACT A waterborne nanocomposite leather finishing system was developed through a two‐step fabrication strategy. First, layered double hydroxide (LDH/hydrotalcite) nanosheets were electrostatically assembled onto aramid nanofibers (ANF) to construct a reinforced LDH@ANF heterostructure. Then, a multifunctional copolymer (H‐P) was synthesized via surfactant‐free emulsion polymerization using sodium p‐styrene sulfonate (SSS) as both monomer and emulsifying agent. The integration of LDH@ANF as a nano‐reinforcement phase into the H‐P matrix yielded stable nanocomposite emulsions (LDH@ANF/H‐P) with exceptional leather finishing capabilities. The nanocomposite coating simultaneously endowed sheepskin with superior abrasion resistance (COF: 0.13), hydrophobicity (contact angle: 108° ± 2.9°), thermal insulation (thermal conductivity: 0.073 W/m K) and flame retardancy. Compared to pure H‐P film, the tensile strength and elongation at break of the LDH@ANF/H‐P film increased by 5.32 MPa and 377.28%, respectively, attributed to the synergistic effects of LDH nanosheets and ANF. Moreover, the pure H‐P exhibited 38% higher abrasion resistance than commercial NP‐87 polymer, while the nanocomposite coating further reduced the surface abrasion by 68% through hierarchical energy dissipation mechanisms.","PeriodicalId":510403,"journal":{"name":"Polymer Composites","volume":"47 4","pages":"3182-3195"},"PeriodicalIF":0.0,"publicationDate":"2025-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147333342","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}

引用次数: 0

Preparation and Properties of In Situ Polymerized Polyphenylene Sulfide‐Based Microwave Absorbing Composites 原位聚合聚苯硫醚基微波吸收复合材料的制备与性能研究

Polymer Composites Pub Date : 2025-08-15 DOI: 10.1002/pc.70293

Jiachun Zhong, Pan Zheng, Dayang Yu, Zejun Pu

{"title":"Preparation and Properties of In Situ Polymerized Polyphenylene Sulfide‐Based Microwave Absorbing Composites","authors":"Jiachun Zhong, Pan Zheng, Dayang Yu, Zejun Pu","doi":"10.1002/pc.70293","DOIUrl":"https://doi.org/10.1002/pc.70293","url":null,"abstract":"ABSTRACT This study emphasizes the pivotal roles of carbon black (CB) and hollow glass beads (HGB) in enhancing the microwave absorption properties of polyphenylene sulfide (PPS) through the preparation of PPS/CB and PPS/CB/HGB composites using in situ polymerization. Systematic investigations reveal that CB significantly boosts the dielectric loss factor of PPS‐based composites, thereby enhancing their microwave absorption capacity. However, it also compromises impedance matching. In contrast, the incorporation of HGB not only optimizes impedance matching but also introduces additional internal interfaces and scattering centers, which play a crucial role in further improving microwave absorption. The combined effects of CB and HGB are particularly evident in the PPS/CB 15%/ HGB composite, which achieves exceptional microwave absorption performance, with a minimum reflection loss of −21.58 dB at a thickness of 2.8 mm and an effective absorption bandwidth exceeding 4 GHz. These findings underscore the importance of CB and HGB in synergistically enhancing the overall microwave absorption properties of PPS‐based composites and provide valuable theoretical and experimental insights for the development of high‐performance PPS‐based microwave absorbers.","PeriodicalId":510403,"journal":{"name":"Polymer Composites","volume":"47 3","pages":"2409-2418"},"PeriodicalIF":0.0,"publicationDate":"2025-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147330411","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}

引用次数: 0

Mechanical and Thermal Enhancement of Polylactic Acid/Poly(Butylene Adipate‐Co‐Terephthalate) Composites by Modified Chitin Micro‐Nanofibers 改性几丁质微纳米纤维对聚乳酸/聚己二酸丁烯-对苯二甲酸酯复合材料的力学和热增强作用

Polymer Composites Pub Date : 2025-08-15 DOI: 10.1002/pc.70285

Jieru Ma, Jinhao Xu, Yamei Zao, Shengjie Sun, Shuo Liu, Yongcan Jin, Dagang Li, Zhaoyang Xu, Chuchu Chen

{"title":"Mechanical and Thermal Enhancement of Polylactic Acid/Poly(Butylene Adipate‐Co‐Terephthalate) Composites by Modified Chitin Micro‐Nanofibers","authors":"Jieru Ma, Jinhao Xu, Yamei Zao, Shengjie Sun, Shuo Liu, Yongcan Jin, Dagang Li, Zhaoyang Xu, Chuchu Chen","doi":"10.1002/pc.70285","DOIUrl":"https://doi.org/10.1002/pc.70285","url":null,"abstract":"ABSTRACT Enhancing the mechanical properties and thermal stability of polylactic acid (PLA) remains a critical challenge in developing high‐performance biodegradable materials. Although incorporating biofiber can improve the tensile strength of PLA, achieving satisfactory toughness is still difficult. The introduction of poly(butylene adipate‐co‐terephthalate) (PBAT) offers a promising solution for toughening; however, ensuring the ideal dispersion of both PBAT and reinforcing fibers within the PLA matrix continues to pose significant technical challenges. Herein, we present an effective strategy for fabricating PLA/PBAT‐based composites with high strength, high toughness, thermal stability, and biodegradability. Chitin micro‐nanofibers were produced via energy‐efficient stirring and chemically treated to yield modified chitin micro‐nanofibers (KCHs). The obtained KCHs were subsequently melt‐blended with PBAT and PLA to prepare the ternary KCH/PLA/PBAT composites. The KCHs synergistically combined the advantages of chitin nanofibers (e.g., high specific surface area and aspect ratio) with those of chitin microfibers (energy‐saving properties and processability). Notably, the surface modification of KCHs significantly enhanced interfacial compatibility, resulting in improved properties of KCH/PLA/PBAT. As a result, the developed KCH/PLA/PBAT composites exhibited good mechanical properties (tensile strength: ~35.0 MPa, toughness: ~8.47 MJ/m 3 ), improved thermal stability (the linear coefficients of thermal expansion: ~171.5 × 10 −6 /K), and biodegradability. Additionally, KCH/PLA/PBAT could be easily molded into packaging products, such as spoons and knives, which can be considered promising biodegradable alternatives to disposable plastics.","PeriodicalId":510403,"journal":{"name":"Polymer Composites","volume":"47 3","pages":"2340-2348"},"PeriodicalIF":0.0,"publicationDate":"2025-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/pc.70285","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147333664","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}

引用次数: 1

Synergistic Effect of Knitted/Woven Hybrid Structure on the Shape Memory Performance and Mechanical Durability of Polymeric Composites 针织/机织复合结构对高分子复合材料形状记忆性能和机械耐久性的协同效应

Polymer Composites Pub Date : 2025-08-11 DOI: 10.1002/pc.70297

Yang Wen, Wenqing Du, Yang Liu, Haipeng Ren, Wei Zhao, Weilin Xu

{"title":"Synergistic Effect of Knitted/Woven Hybrid Structure on the Shape Memory Performance and Mechanical Durability of Polymeric Composites","authors":"Yang Wen, Wenqing Du, Yang Liu, Haipeng Ren, Wei Zhao, Weilin Xu","doi":"10.1002/pc.70297","DOIUrl":"https://doi.org/10.1002/pc.70297","url":null,"abstract":"ABSTRACT The knitted‐fabric reinforced shape memory polymeric composites (SMPC) have large recoverable deformation and limited mechanical properties, whereas woven‐fabric reinforced SMPC possess good mechanical properties and limited recoverable deformation. In this work, six laminated SMPCs with different lay‐up sequences were prepared using weft plain knitted fabrics (K), rib knitted fabrics (R), woven fabrics (W) and the epoxy‐based shape memory polymer (SMP) to study the synergistic effect of the knitted/woven hybrid structure on the shape memory performance and mechanical durability of SMPC. The results show that SMPCs have a high shape fixation ratio and a good shape recovery ratio. When the knitted fabrics are laminated in the outer layers and the woven fabrics are in the middle layers, the shape recovery properties of SMPCs are good, and the SMPCs after shape memory cycles have a low damage area of interface debonding. The KKKK SMPCs obtain the smallest recovery force, and the WWWW SMPCs have the largest recovery force of up to 4.4 N. Furthermore, after 1, 5, and 10 shape memory cycles, the flexural strength and modulus of SMPCs generally decrease, whereas the fracture strain of SMPCs increases. The addition of knittedstructure to wovenructure can improve the residual strength ratio of SMPCs after shape memory cycles. The hybridized lay‐up of knittedstructure and wovenructure endows the SMPCs with optimized shape memory performance, mechanical properties, and mechanical durability after shape memory cycles. Finally, the finite element simulation of SMPCs during U‐bending was performed to help discuss the mechanism.","PeriodicalId":510403,"journal":{"name":"Polymer Composites","volume":"47 3","pages":"2457-2468"},"PeriodicalIF":0.0,"publicationDate":"2025-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147900571","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}

引用次数: 1

Constructing a Molecular Pulley Network Interphase for Simultaneous Enhancement of Interfacial Toughness and Strength in Carbon Fiber/Epoxy Composites 构建分子滑轮网络界面相以同时增强碳纤维/环氧复合材料界面韧性和强度

Polymer Composites Pub Date : 2025-08-08 DOI: 10.1002/pc.70209

Long Ma, Zhen Deng, Gang Li, Yunhua Yu, Xiaoping Yang

{"title":"Constructing a Molecular Pulley Network Interphase for Simultaneous Enhancement of Interfacial Toughness and Strength in Carbon Fiber/Epoxy Composites","authors":"Long Ma, Zhen Deng, Gang Li, Yunhua Yu, Xiaoping Yang","doi":"10.1002/pc.70209","DOIUrl":"https://doi.org/10.1002/pc.70209","url":null,"abstract":"ABSTRACT Simultaneous enhancement of interfacial toughness and strength in carbon fiber reinforced polymer matrix composites (CFPRs) is critical for achieving superior mechanical performance and long‐term durability. Herein, a multi‐aldehyde polyrotaxane (maPR) was synthesized and incorporated into the CFRP interphase at varying branched polyethyleneimine (PEI)/maPR ratios to construct a molecular pulley network. The 2:1 PEI/maPR formulation (PEI 2 ‐PR 1 ) generated an optimal molecular pulley network within the interphase of CFRP, which enhanced stress dissipation capacity while increasing interphase thickness and crosslinking density. Compared to the desized carbon fiber (CF‐desized), the PEI 2 ‐PR 1 ‐modified carbon fibers (CF‐(PEI 2 ‐PR 1 )) demonstrated significantly increased surface roughness and wettability. Consequently, the CF‐(PEI 2 ‐PR 1 )/EP composite exhibited the widest interphase (402 ± 8 nm), the highest transverse fiber bundle test (TFBT) strength (24.80 ± 2.21 MPa), interfacial shear strength (IFSS) (72.17 ± 2.99 MPa), and interfacial toughness (194.13 ± 2.43 J/m 2 ), along with the optimal release of residual interfacial stress (82.10%). This work proposed a novel and effective approach for simultaneously enhancing the interfacial toughness and strength of CFRP through molecular‐scale interphase engineering.","PeriodicalId":510403,"journal":{"name":"Polymer Composites","volume":"47 2","pages":"1169-1182"},"PeriodicalIF":0.0,"publicationDate":"2025-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147900065","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}

引用次数: 1

0D Fe ₃ O ₄ Nanoparticles Anchored on 2D Layered Double Hydroxides: A Composite Structure for Enhanced Microwave Absorption and Corrosion Protection 在二维层状双氢氧化物上锚定的0dfe3o4纳米颗粒：一种增强微波吸收和防腐的复合结构

Polymer Composites Pub Date : 2025-08-08 DOI: 10.1002/pc.70284

Jie Wang, Min Cai, Yue Zheng, Xiaodong Yi, Xin Chen, Peng Zhou, Hongdi Zhou, Biao Zhang, Fugang Qi, Jing Ma, Xiaoping Ouyang

{"title":"<scp> 0D Fe <sub>3</sub> O <sub>4</sub> </scp> Nanoparticles Anchored on <scp>2D</scp> Layered Double Hydroxides: A Composite Structure for Enhanced Microwave Absorption and Corrosion Protection","authors":"Jie Wang, Min Cai, Yue Zheng, Xiaodong Yi, Xin Chen, Peng Zhou, Hongdi Zhou, Biao Zhang, Fugang Qi, Jing Ma, Xiaoping Ouyang","doi":"10.1002/pc.70284","DOIUrl":"https://doi.org/10.1002/pc.70284","url":null,"abstract":"ABSTRACT To meet the stealth needs of submarines at sea, researchers have developed wave‐absorbing coatings. However, the marine environment tends to corrode the coatings and affect their performance. Therefore, it is necessary to develop materials with both wave‐absorbing and anti‐corrosion functions. In this study, we developed Fe 3 O 4 /LDHs composite with enhanced microwave absorption properties by uniformly anchoring Fe 3 O 4 particles onto the surface of hexagonal MgAl‐layered double hydroxides (LDHs) through one‐step hydrothermal and hot‐solvent methods. The even dispersion of Fe 3 O 4 mitigates nanoparticle agglomeration and promotes synergistic effects between the magnetic and dielectric components, significantly boosting magnetic loss. The composite achieved a minimum reflection loss (RL min ) of −53.46 dB, nearly double that of pure Fe 3 O 4 (−27.31 dB), while maintaining the same effective absorption bandwidth (EAB). Moreover, the Fe 3 O 4 /LDHs demonstrate excellent dispersion ability in epoxy (EP). The resistance to corrosion of Fe 3 O 4 /LDHs@EP is significantly enhanced, shown by the low‐frequency impedance modulus, which stays above 10 11 Ω cm 2 even after 19 days of immersion, which was four orders of magnitude higher than that of the pure Fe 3 O 4 @EP coatings (10 7 Ω cm 2 ). The Fe 3 O 4 /LDHs composite material exhibits dual capabilities of stealth and anti‐corrosion, providing valuable insights for the development of marine stealth technologies.","PeriodicalId":510403,"journal":{"name":"Polymer Composites","volume":"47 3","pages":"2326-2339"},"PeriodicalIF":0.0,"publicationDate":"2025-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147911753","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}

引用次数: 0