Composites Part B: Engineering最新文献

英文中文

Multifunctional linear polyphosphazene with reactive side groups: Achieving fire resistance and low dielectric bismaleimide

IF 12.7 1区材料科学 Q1 ENGINEERING, MULTIDISCIPLINARY

Composites Part B: Engineering

Pub Date : 2025-02-11 DOI: 10.1016/j.compositesb.2025.112254

Yifan Zhou , Chenlei Wang , Shuilai Qiu , Weizhao Hu , Yuan Hu , Laibin Zhang

The integration and high-speed transmission trends impose stringent demands on the dielectric and fire safety performance of 5th-Generation (5G) terminal communication devices. The existing highly polarized flame retardants cannot achieve a balance between the two, and they are also unable to balance the comprehensive performance of modified resins. This work innovatively introduces a reactive dicyclopentadiene structure into the side chains of linear polyphosphazenes, cleverly achieving a balance between flame retardancy and low dielectric properties through Diels-Alder (D-A) chemistry and free volume control. Firstly, active cyclopentadiene engages in BMI solidification via D-A chemistry, refining the interface to diminish polarization. Secondly, the voluminous three-dimensional cyclic side chains and highly symmetrical, low-polarization conjugated phosphonitrile main chains augment free volume of bismaleimide resin (BMI), disrupt molecular polarization, and reduce the dielectric constant to 2.64. Thirdly, the modified bismaleimide resin exhibits a glass transition temperature surpassing 310 °C and an impact strength increase of 78.5 %. In summary, this innovative approach harmonizes fire safety and low dielectric properties, positioning modified BMI as a prime candidate for next-generation electronic packaging materials.

{"title":"Multifunctional linear polyphosphazene with reactive side groups: Achieving fire resistance and low dielectric bismaleimide","authors":"Yifan Zhou , Chenlei Wang , Shuilai Qiu , Weizhao Hu , Yuan Hu , Laibin Zhang","doi":"10.1016/j.compositesb.2025.112254","DOIUrl":"10.1016/j.compositesb.2025.112254","url":null,"abstract":"<div><div>The integration and high-speed transmission trends impose stringent demands on the dielectric and fire safety performance of 5th-Generation (5G) terminal communication devices. The existing highly polarized flame retardants cannot achieve a balance between the two, and they are also unable to balance the comprehensive performance of modified resins. This work innovatively introduces a reactive dicyclopentadiene structure into the side chains of linear polyphosphazenes, cleverly achieving a balance between flame retardancy and low dielectric properties through Diels-Alder (D-A) chemistry and free volume control. Firstly, active cyclopentadiene engages in BMI solidification via D-A chemistry, refining the interface to diminish polarization. Secondly, the voluminous three-dimensional cyclic side chains and highly symmetrical, low-polarization conjugated phosphonitrile main chains augment free volume of bismaleimide resin (BMI), disrupt molecular polarization, and reduce the dielectric constant to 2.64. Thirdly, the modified bismaleimide resin exhibits a glass transition temperature surpassing 310 °C and an impact strength increase of 78.5 %. In summary, this innovative approach harmonizes fire safety and low dielectric properties, positioning modified BMI as a prime candidate for next-generation electronic packaging materials.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"296 ","pages":"Article 112254"},"PeriodicalIF":12.7,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143427827","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 CO2 electrolysis performance in solid oxide electrolysis cell using La-doped SrTiO3-δ composites

IF 12.7 1区材料科学 Q1 ENGINEERING, MULTIDISCIPLINARY

Composites Part B: Engineering

Pub Date : 2025-02-11 DOI: 10.1016/j.compositesb.2025.112261

Xiaoyong Xu , Xu Han , Haobo Li , Abel Santos , Jie Zhao , Shintaro Idab

Electrochemically reducing carbon dioxide by solid oxide electrolysis cells (SOECs) is a promising approach to minimize greenhouse gas emissions and generate high added value chemicals and fuels using renewable energy. However, the practical use of CO₂ electrolysis in SOECs faces challenges because of the scarcity of effective and stable cathode materials. This study explores La-doped SrTiO_3-δ composites as cathode materials for CO₂ electrolysis. By judiciously adjusting the La/Sr ratio, the perovskite structure's oxygen vacancies, lattice oxygen formation, and the content of Sr on the surface, a high CO₂ reduction activity is achieved. These adjustments enhance CO₂ adsorption and dissociation, leading to an improvement of catalytic activity and operational stability. La_0.4Sr_0.5TiO_3-δ shows a significantly enhanced CO₂ electrolysis performance with a high Faraday efficiency, a current density of 0.64 A cm⁻² at 850 °C and over 140 h of stability. The evaluation of various La-doped SrTiO_3-δ composites highlights their potential as efficient cathode materials for CO₂ electrolysis in SOECs.

{"title":"Enhancing CO2 electrolysis performance in solid oxide electrolysis cell using La-doped SrTiO3-δ composites","authors":"Xiaoyong Xu , Xu Han , Haobo Li , Abel Santos , Jie Zhao , Shintaro Idab","doi":"10.1016/j.compositesb.2025.112261","DOIUrl":"10.1016/j.compositesb.2025.112261","url":null,"abstract":"<div><div>Electrochemically reducing carbon dioxide by solid oxide electrolysis cells (SOECs) is a promising approach to minimize greenhouse gas emissions and generate high added value chemicals and fuels using renewable energy. However, the practical use of CO<sub>2</sub> electrolysis in SOECs faces challenges because of the scarcity of effective and stable cathode materials. This study explores La-doped SrTiO<sub>3-δ</sub> composites as cathode materials for CO<sub>2</sub> electrolysis. By judiciously adjusting the La/Sr ratio, the perovskite structure's oxygen vacancies, lattice oxygen formation, and the content of Sr on the surface, a high CO<sub>2</sub> reduction activity is achieved. These adjustments enhance CO<sub>2</sub> adsorption and dissociation, leading to an improvement of catalytic activity and operational stability. La<sub>0.4</sub>Sr<sub>0.5</sub>TiO<sub>3-δ</sub> shows a significantly enhanced CO<sub>2</sub> electrolysis performance with a high Faraday efficiency, a current density of 0.64 A cm<sup>−2</sup> at 850 °C and over 140 h of stability. The evaluation of various La-doped SrTiO<sub>3-δ</sub> composites highlights their potential as efficient cathode materials for CO<sub>2</sub> electrolysis in SOECs.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"296 ","pages":"Article 112261"},"PeriodicalIF":12.7,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143419975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hydrophobic cholesterol-modified polycations facilitate the transfer and retention of drugs on the vascular balloon to the vessel wall

IF 12.7 1区材料科学 Q1 ENGINEERING, MULTIDISCIPLINARY

Composites Part B: Engineering

Pub Date : 2025-02-11 DOI: 10.1016/j.compositesb.2025.112239

Yu-xian Lai , Hong-lin Qian , Jia-yin Fu , Guo-sheng Fu , Ke-feng Ren , Jian Ji

Drug-coated balloon (DCB) delivers antiproliferative drugs to inhibit post-procedural restenosis caused by vascular injury during dilation, but the short-term implantation and continuous blood flow limit drug absorption and retention at the lesion site. Enhancing the transferring drug coating is essential for suppressing the restenosis. The combination of electrostatics and hydrophobic interactions may help to strengthen the interaction between the coating and vessels. Here, the combination of hydrophobic cholesterol (Chol)-modified polycationic polyethyleneimine (PEI) and the plasmids DNA (pDNA) encoding vascular endothelial growth factor (VEGF) was used for DCB coating. Our data indicated that the Chol-introduced coating achieved a vessel transfer rate of up to 93 % in vitro, representing a 20-fold increase compared to the control group. After 3 days under simulated physiological shear conditions, the Chol-introduced coating still maintained more than 40 % retention on the vessel wall. Two weeks post-surgery, the expression level of VEGF in the Chol-introduced group was three times higher than that in the unmodified group. Our findings demonstrate that the alliance of hydrophobic Chol with the positive charge of PEI significantly increased the coating retention on vessels, providing a new approach for achieving extended delivery of drugs in DCB therapies.

药物涂层球囊（DCB）可输送抗增生药物，抑制扩张过程中血管损伤导致的术后再狭窄，但短期植入和持续血流限制了药物在病变部位的吸收和保留。加强药物涂层的转移对抑制再狭窄至关重要。静电和疏水相互作用的结合可能有助于加强涂层与血管之间的相互作用。在此，我们将疏水性胆固醇（Chol）修饰的聚阳离子聚乙烯亚胺（PEI）和编码血管内皮生长因子（VEGF）的质粒 DNA（pDNA）结合起来用于 DCB 涂层。我们的数据表明，在体外，Chol导入的涂层实现了高达93%的血管转移率，比对照组提高了20倍。在模拟生理剪切力条件下放置 3 天后，Chol 导入涂层在血管壁上的保留率仍超过 40%。手术后两周，导入胆固醇组血管内皮生长因子的表达水平是未修饰组的三倍。我们的研究结果表明，疏水性胆醇与带正电荷的聚乙烯醇的结合大大提高了涂层在血管上的保留率，为在 DCB 疗法中实现延长给药时间提供了一种新方法。

{"title":"Hydrophobic cholesterol-modified polycations facilitate the transfer and retention of drugs on the vascular balloon to the vessel wall","authors":"Yu-xian Lai , Hong-lin Qian , Jia-yin Fu , Guo-sheng Fu , Ke-feng Ren , Jian Ji","doi":"10.1016/j.compositesb.2025.112239","DOIUrl":"10.1016/j.compositesb.2025.112239","url":null,"abstract":"<div><div>Drug-coated balloon (DCB) delivers antiproliferative drugs to inhibit post-procedural restenosis caused by vascular injury during dilation, but the short-term implantation and continuous blood flow limit drug absorption and retention at the lesion site. Enhancing the transferring drug coating is essential for suppressing the restenosis. The combination of electrostatics and hydrophobic interactions may help to strengthen the interaction between the coating and vessels. Here, the combination of hydrophobic cholesterol (Chol)-modified polycationic polyethyleneimine (PEI) and the plasmids DNA (pDNA) encoding vascular endothelial growth factor (VEGF) was used for DCB coating. Our data indicated that the Chol-introduced coating achieved a vessel transfer rate of up to 93 % <em>in vitro</em>, representing a 20-fold increase compared to the control group. After 3 days under simulated physiological shear conditions, the Chol-introduced coating still maintained more than 40 % retention on the vessel wall. Two weeks post-surgery, the expression level of VEGF in the Chol-introduced group was three times higher than that in the unmodified group. Our findings demonstrate that the alliance of hydrophobic Chol with the positive charge of PEI significantly increased the coating retention on vessels, providing a new approach for achieving extended delivery of drugs in DCB therapies.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"296 ","pages":"Article 112239"},"PeriodicalIF":12.7,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143419976","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

Aramid nanofibers-assisted graphite films for efficient electromagnetic interference shielding

IF 12.7 1区材料科学 Q1 ENGINEERING, MULTIDISCIPLINARY

Composites Part B: Engineering

Pub Date : 2025-02-11 DOI: 10.1016/j.compositesb.2025.112269

Yi-Ke Li , Meng-Xin Liu , Chun-Yang Li , Kun-Peng Cui , Liang-Bin Li , Li-Chuan Jia

Micro-scale graphite has significant application prospects in electromagnetic interference (EMI) shielding compared with conductive nanomaterials (such as graphene, carbon nanotube, and MXene), owing to its low cost, scalability, and large crystalline size. However, the challenges of poor dispersion and film-formation of micro-scale graphite hinder the preparation of highly conductive self-standing graphite-based films. In this study, we effectively solve the dispersion and film-formation issues of micro-scale graphite by introducing a small amount (10 wt%) of aramid nanofibers (ANF), which benefites from the great aspect ratio and high specific surface area of ANF. The resulting graphite/ANF films achieve an ultra-high conductivity of 5323.7 S/m, and their EMI shielding effectiveness (EMI SE) reaches 38.9 dB at a thickness of only 30 μm within the frequency range of 8.2–12.4 GHz. In addition, the graphite/ANF films demonstrate excellent mechanical flexibility, thermal stability, and flame retardancy. This study provides a pathway for assembling micro-scale graphite into highly conductive self-standing films, highlighting their significant potential for EMI shielding applications in electronic equipment.

{"title":"Aramid nanofibers-assisted graphite films for efficient electromagnetic interference shielding","authors":"Yi-Ke Li , Meng-Xin Liu , Chun-Yang Li , Kun-Peng Cui , Liang-Bin Li , Li-Chuan Jia","doi":"10.1016/j.compositesb.2025.112269","DOIUrl":"10.1016/j.compositesb.2025.112269","url":null,"abstract":"<div><div>Micro-scale graphite has significant application prospects in electromagnetic interference (EMI) shielding compared with conductive nanomaterials (such as graphene, carbon nanotube, and MXene), owing to its low cost, scalability, and large crystalline size. However, the challenges of poor dispersion and film-formation of micro-scale graphite hinder the preparation of highly conductive self-standing graphite-based films. In this study, we effectively solve the dispersion and film-formation issues of micro-scale graphite by introducing a small amount (10 wt%) of aramid nanofibers (ANF), which benefites from the great aspect ratio and high specific surface area of ANF. The resulting graphite/ANF films achieve an ultra-high conductivity of 5323.7 S/m, and their EMI shielding effectiveness (EMI SE) reaches 38.9 dB at a thickness of only 30 μm within the frequency range of 8.2–12.4 GHz. In addition, the graphite/ANF films demonstrate excellent mechanical flexibility, thermal stability, and flame retardancy. This study provides a pathway for assembling micro-scale graphite into highly conductive self-standing films, highlighting their significant potential for EMI shielding applications in electronic equipment.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"296 ","pages":"Article 112269"},"PeriodicalIF":12.7,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143419985","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

Particles generated from degrading magnesium implants induce bone resorption

IF 12.7 1区材料科学 Q1 ENGINEERING, MULTIDISCIPLINARY

Composites Part B: Engineering

Pub Date : 2025-02-11 DOI: 10.1016/j.compositesb.2025.112241

Yu Sun , Xiyue Zhang , Kai Yuan , Jie Lou , Jinlong Yu , Han Yu , Wenhui Wang , Xiaonong Zhang

In the frontier of clinical translation of biodegradable magnesium (Mg), most researchers have found cavities between bone tissue and Mg-based implants. Nevertheless, the biochemical origin driving the formation of these cavities remains unknown. Here we propose that the cavities are formed as a consequence of bone resorption induced by macrophage-mediated uptake of insoluble particles produced by magnesium degradation. To verify this possibility, we collected insoluble degradation particles (DPs) of high-purity magnesium (HP–Mg) and investigated their influences on the osteoclast formation, polarization, and osteoclast bone resorption in vitro and in vivo. It was demonstrated that DPs could induce bone resorption. The DPs promoted the activation of both nuclear factor-kappa-light-chain enhancer of activated B cells (NF-κB) and mitogen-activated protein kinase (MAPK) signaling pathways and upregulated the expression of osteoclast-specific genes and proteins. These results confirm that the presence of DPs could induce bone resorption both in vitro and in vivo, providing a possible mechanism for forming cavities around Mg-based implants.

{"title":"Particles generated from degrading magnesium implants induce bone resorption","authors":"Yu Sun , Xiyue Zhang , Kai Yuan , Jie Lou , Jinlong Yu , Han Yu , Wenhui Wang , Xiaonong Zhang","doi":"10.1016/j.compositesb.2025.112241","DOIUrl":"10.1016/j.compositesb.2025.112241","url":null,"abstract":"<div><div>In the frontier of clinical translation of biodegradable magnesium (Mg), most researchers have found cavities between bone tissue and Mg-based implants. Nevertheless, the biochemical origin driving the formation of these cavities remains unknown. Here we propose that the cavities are formed as a consequence of bone resorption induced by macrophage-mediated uptake of insoluble particles produced by magnesium degradation. To verify this possibility, we collected insoluble degradation particles (DPs) of high-purity magnesium (HP–Mg) and investigated their influences on the osteoclast formation, polarization, and osteoclast bone resorption <em>in vitro</em> and <em>in vivo</em>. It was demonstrated that DPs could induce bone resorption. The DPs promoted the activation of both nuclear factor-kappa-light-chain enhancer of activated B cells (NF-κB) and mitogen-activated protein kinase (MAPK) signaling pathways and upregulated the expression of osteoclast-specific genes and proteins. These results confirm that the presence of DPs could induce bone resorption both <em>in vitro</em> and <em>in vivo</em>, providing a possible mechanism for forming cavities around Mg-based implants.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"296 ","pages":"Article 112241"},"PeriodicalIF":12.7,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143419989","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

Partially crystalline Co3(HITP)2 modified Si anode endowing Si-air batteries with long discharge duration at high temperatures

IF 12.7 1区材料科学 Q1 ENGINEERING, MULTIDISCIPLINARY

Composites Part B: Engineering

Pub Date : 2025-02-11 DOI: 10.1016/j.compositesb.2025.112270

Fengjun Deng, Ze Liu, Yuhang Zhang, Kaiyong Feng, Xiaochen Zhang, Yingjian Yu

In recent years, silicon has garnered attention as an anode material for air batteries due to its high energy density. However, a major challenge lies in the self-corrosion of the silicon anode during discharge, leading to inefficient silicon consumption. In this study, electronic conductive metal-organic frameworks, including partially crystalline Co₃(HITP)₂-1 and crystalline Co₃(HITP)₂-2 powders, were synthesized using a hydrothermal method to ameliorate anodes for silicon-air batteries for the first time. Notably, the Si@Co₃(HITP)₂-1 composite anode demonstrated the longest discharge duration of 476 h at 150 μA, outperforming all other samples. Both experimental results and theoretical calculations indicate that Co₃(HITP)₂ reduces the composite anode's adsorption capacity for H₂O and SiO₂, enhancing its self-corrosion reactions and passivation resistance. Compared with pristine silicon, the Si@Co₃(HITP)₂-1 composite anode extended the discharge time by approximately 18 h even at 50 °C. This pioneering research highlights the potential of an electronic conductive metal-organic framework in enhancing anode stability and extending battery life.

{"title":"Partially crystalline Co3(HITP)2 modified Si anode endowing Si-air batteries with long discharge duration at high temperatures","authors":"Fengjun Deng, Ze Liu, Yuhang Zhang, Kaiyong Feng, Xiaochen Zhang, Yingjian Yu","doi":"10.1016/j.compositesb.2025.112270","DOIUrl":"10.1016/j.compositesb.2025.112270","url":null,"abstract":"<div><div>In recent years, silicon has garnered attention as an anode material for air batteries due to its high energy density. However, a major challenge lies in the self-corrosion of the silicon anode during discharge, leading to inefficient silicon consumption. In this study, electronic conductive metal-organic frameworks, including partially crystalline Co<sub>3</sub>(HITP)<sub>2</sub>-1 and crystalline Co<sub>3</sub>(HITP)<sub>2</sub>-2 powders, were synthesized using a hydrothermal method to ameliorate anodes for silicon-air batteries for the first time. Notably, the Si@Co<sub>3</sub>(HITP)<sub>2</sub>-1 composite anode demonstrated the longest discharge duration of 476 h at 150 μA, outperforming all other samples. Both experimental results and theoretical calculations indicate that Co<sub>3</sub>(HITP)<sub>2</sub> reduces the composite anode's adsorption capacity for H₂O and SiO<sub>2</sub>, enhancing its self-corrosion reactions and passivation resistance. Compared with pristine silicon, the Si@Co<sub>3</sub>(HITP)<sub>2</sub>-1 composite anode extended the discharge time by approximately 18 h even at 50 °C. This pioneering research highlights the potential of an electronic conductive metal-organic framework in enhancing anode stability and extending battery life.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"296 ","pages":"Article 112270"},"PeriodicalIF":12.7,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143419955","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

Unraveling the corrosion behavior and enhanced strength-ductility synergy mechanism of a novel Al–Ce/GNPs composite fabricated by selective laser melting

IF 12.7 1区材料科学 Q1 ENGINEERING, MULTIDISCIPLINARY

Composites Part B: Engineering

Pub Date : 2025-02-11 DOI: 10.1016/j.compositesb.2025.112244

Peng Peng , Jiang Ju , Ting Feng , Tao Yang , Bo Xiao , Junhua Luan , Yufei Wang , Haiyan Gao , Haiyang Lv , Jun Wang , Baode Sun

A novel Al-9.5Ce-0.6Mg/0.7GNPs (wt. %) composite with a network co-continuous Al/(Al, Mg)₁₁Ce₃ eutectic structure was fabricated using laser powder bed fusion. Mg mainly exists in the Al₁₁Ce₃ phase rather than the Al matrix. The as-built composite achieved superior ultimate tensile strength (UTS) of ∼452 ± 3 MPa and an elongation of ∼5.6 ± 0.3 %. Heat treatment enhanced elongation (13.2 ± 0.3 %) while maintaining high UTS (406 ± 6 MPa), ∼4 and ∼5 times higher than as-cast Al–Ce alloy, respectively. High strength is ascribed to grain refinement, Orowan strengthening, and load transfer strengthening. The breakage of the (Al, Mg)₁₁Ce₃ network was key to obtaining excellent ductility. The HT composite exhibits excellent corrosion resistance that is an order of magnitude higher than that of as-cast Al–Ce alloy in 3.5 wt % NaCl solution, Additionally, the galvanic corrosion between α-Al and (Al, Mg)₁₁Ce₃ as well as the preferred corrosion of the melt pool boundary (MPB) was inhibited. This work provides a new idea for developing high strength-ductility synergy and corrosion resistance via additive manufacturing (AM) processing technique.

{"title":"Unraveling the corrosion behavior and enhanced strength-ductility synergy mechanism of a novel Al–Ce/GNPs composite fabricated by selective laser melting","authors":"Peng Peng , Jiang Ju , Ting Feng , Tao Yang , Bo Xiao , Junhua Luan , Yufei Wang , Haiyan Gao , Haiyang Lv , Jun Wang , Baode Sun","doi":"10.1016/j.compositesb.2025.112244","DOIUrl":"10.1016/j.compositesb.2025.112244","url":null,"abstract":"<div><div>A novel Al-9.5Ce-0.6Mg/0.7GNPs (wt. %) composite with a network co-continuous Al/(Al, Mg)<sub>11</sub>Ce<sub>3</sub> eutectic structure was fabricated using laser powder bed fusion. Mg mainly exists in the Al<sub>11</sub>Ce<sub>3</sub> phase rather than the Al matrix. The as-built composite achieved superior ultimate tensile strength (UTS) of ∼452 ± 3 MPa and an elongation of ∼5.6 ± 0.3 %. Heat treatment enhanced elongation (13.2 ± 0.3 %) while maintaining high UTS (406 ± 6 MPa), ∼4 and ∼5 times higher than as-cast Al–Ce alloy, respectively. High strength is ascribed to grain refinement, Orowan strengthening, and load transfer strengthening. The breakage of the (Al, Mg)<sub>11</sub>Ce<sub>3</sub> network was key to obtaining excellent ductility. The HT composite exhibits excellent corrosion resistance that is an order of magnitude higher than that of as-cast Al–Ce alloy in 3.5 wt % NaCl solution, Additionally, the galvanic corrosion between α-Al and (Al, Mg)<sub>11</sub>Ce<sub>3</sub> as well as the preferred corrosion of the melt pool boundary (MPB) was inhibited. This work provides a new idea for developing high strength-ductility synergy and corrosion resistance via additive manufacturing (AM) processing technique.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"296 ","pages":"Article 112244"},"PeriodicalIF":12.7,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143419973","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

Unveiling the potential of M2X MXenes: Structure, properties, synthesis strategies, and supercapacitor applications

IF 12.7 1区材料科学 Q1 ENGINEERING, MULTIDISCIPLINARY

Composites Part B: Engineering

Pub Date : 2025-02-10 DOI: 10.1016/j.compositesb.2025.112237

Onkar Jaywant Kewate , Iftikhar Hussain , Megha Prajapati , Rita Kumari , Yosephine Intan Ayuningtyas , Dattakumar S. Mhamane , Mukund G. Mali , Mohan V. Jacob , Jeng-Yu Lin , Chhaya Ravi Kant , Sathyanarayanan Punniyakoti

2D MXenes have received significant attention due to their remarkable properties, including superior electrical conductivity, chemical stability, tunable surface chemistry, structural flexibility, and excellent thermal and magnetic characteristics, making them highly suitable for supercapacitors. Since their discovery in 2011, M₃X₂ MXenes have been widely studied, while M₂X MXenes, despite their equally impressive properties, have been comparatively less explored. M₂X MXenes offer promising potential for a wide range of applications, particularly in energy storage systems like supercapacitors. This review provides a comprehensive overview of the current energy storage crisis and the increasing demand for advanced materials. It introduces the fundamentals of MXenes, with a detailed focus on M₂X MXenes, and explains their structure, properties, and various synthesis methods. The review also highlights the application of M₂X MXenes in supercapacitors and also provided a detailed discussion of their advantages and challenges. In conclusion, the article outlines the key challenges and future directions in the field, aiming to serve as a valuable guide for MXene research and supercapacitor development.

{"title":"Unveiling the potential of M2X MXenes: Structure, properties, synthesis strategies, and supercapacitor applications","authors":"Onkar Jaywant Kewate , Iftikhar Hussain , Megha Prajapati , Rita Kumari , Yosephine Intan Ayuningtyas , Dattakumar S. Mhamane , Mukund G. Mali , Mohan V. Jacob , Jeng-Yu Lin , Chhaya Ravi Kant , Sathyanarayanan Punniyakoti","doi":"10.1016/j.compositesb.2025.112237","DOIUrl":"10.1016/j.compositesb.2025.112237","url":null,"abstract":"<div><div>2D MXenes have received significant attention due to their remarkable properties, including superior electrical conductivity, chemical stability, tunable surface chemistry, structural flexibility, and excellent thermal and magnetic characteristics, making them highly suitable for supercapacitors. Since their discovery in 2011, M<sub>3</sub>X<sub>2</sub> MXenes have been widely studied, while M<sub>2</sub>X MXenes, despite their equally impressive properties, have been comparatively less explored. M<sub>2</sub>X MXenes offer promising potential for a wide range of applications, particularly in energy storage systems like supercapacitors. This review provides a comprehensive overview of the current energy storage crisis and the increasing demand for advanced materials. It introduces the fundamentals of MXenes, with a detailed focus on M<sub>2</sub>X MXenes, and explains their structure, properties, and various synthesis methods. The review also highlights the application of M<sub>2</sub>X MXenes in supercapacitors and also provided a detailed discussion of their advantages and challenges. In conclusion, the article outlines the key challenges and future directions in the field, aiming to serve as a valuable guide for MXene research and supercapacitor development.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"296 ","pages":"Article 112237"},"PeriodicalIF":12.7,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143419990","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

Biosynthesized metal nanoparticles from agro-industrial byproducts applied in the functionalization of bioplastics for use in the blueberry packaging

IF 12.7 1区材料科学 Q1 ENGINEERING, MULTIDISCIPLINARY

Composites Part B: Engineering

Pub Date : 2025-02-10 DOI: 10.1016/j.compositesb.2025.112249

David Asmat-Campos , Meliza Lindsay Rojas , Alberto Claudio Miano , Melina L.M. Cruzado-Bravo , Diego Batista Menezes , Reinaldo Pereira , Gabriela Montes de Oca-Vásquez

In this study, silver (Ag), zinc oxide (ZnO), and silicon dioxide (SiO₂) nanoparticles (NPs) were synthesized using phenolic compound-rich extracts from agro-industrial by-products of blueberries and asparagus. The NPs exhibited average sizes of 3.07 ± 2.38 nm (Ag), 70.42 ± 18 nm (ZnO), and 104.38 ± 11.7 nm (SiO₂) with high colloidal stability (Z potentials: −35.63 mV for Ag, −33.9 mV for ZnO, and −10 mV for SiO₂). Bioplastics functionalized with these NPs showed improved properties: increased rigidity (Young's modulus up to 2690 MPa in B–SiO₂), reduced water absorption (160.64 g/100 g dry matter in B–Ag), high transparency (87.87 % in B-Control, 87.83 % in B–ZnO), and lower wettability (contact angle of 102.4° in B–ZnO). Thermal stability also improved, with B–SiO₂ exhibiting the lowest mass loss (31.12 %) in TGA. Bioplastics with Ag demonstrated strong antimicrobial activity, maintaining low mold and yeast counts (<10 CFU/g). Biodegradation was faster in soil than in marine environments, with NPs modulating rates. As primary and secondary packaging for blueberries, Ag-functionalized bioplastics reduced mass loss and preserved firmness for up to 56 days at 4.3 °C, with no NP migration detected by XRF and FTIR. This research highlights a sustainable approach using agro-industrial by-products to develop functional bioplastics, aligning with circular economy principles and reducing environmental impact in the food packaging sector.

{"title":"Biosynthesized metal nanoparticles from agro-industrial byproducts applied in the functionalization of bioplastics for use in the blueberry packaging","authors":"David Asmat-Campos , Meliza Lindsay Rojas , Alberto Claudio Miano , Melina L.M. Cruzado-Bravo , Diego Batista Menezes , Reinaldo Pereira , Gabriela Montes de Oca-Vásquez","doi":"10.1016/j.compositesb.2025.112249","DOIUrl":"10.1016/j.compositesb.2025.112249","url":null,"abstract":"<div><div>In this study, silver (Ag), zinc oxide (ZnO), and silicon dioxide (SiO₂) nanoparticles (NPs) were synthesized using phenolic compound-rich extracts from agro-industrial by-products of blueberries and asparagus. The NPs exhibited average sizes of 3.07 ± 2.38 nm (Ag), 70.42 ± 18 nm (ZnO), and 104.38 ± 11.7 nm (SiO₂) with high colloidal stability (Z potentials: −35.63 mV for Ag, −33.9 mV for ZnO, and −10 mV for SiO₂). Bioplastics functionalized with these NPs showed improved properties: increased rigidity (Young's modulus up to 2690 MPa in B–SiO₂), reduced water absorption (160.64 g/100 g dry matter in B–Ag), high transparency (87.87 % in B-Control, 87.83 % in B–ZnO), and lower wettability (contact angle of 102.4° in B–ZnO). Thermal stability also improved, with B–SiO₂ exhibiting the lowest mass loss (31.12 %) in TGA. Bioplastics with Ag demonstrated strong antimicrobial activity, maintaining low mold and yeast counts (<10 CFU/g). Biodegradation was faster in soil than in marine environments, with NPs modulating rates. As primary and secondary packaging for blueberries, Ag-functionalized bioplastics reduced mass loss and preserved firmness for up to 56 days at 4.3 °C, with no NP migration detected by XRF and FTIR. This research highlights a sustainable approach using agro-industrial by-products to develop functional bioplastics, aligning with circular economy principles and reducing environmental impact in the food packaging sector.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"296 ","pages":"Article 112249"},"PeriodicalIF":12.7,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143419993","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

Glass fiber-reinforced modified PDCPD composites with improving mode I and mode II interlaminar fracture toughness and impact resistance: Effects of matrix properties

IF 12.7 1区材料科学 Q1 ENGINEERING, MULTIDISCIPLINARY

Composites Part B: Engineering

Pub Date : 2025-02-10 DOI: 10.1016/j.compositesb.2025.112225

Tingting Zhang , Jin He , Ning Xu , Wang Yin , Dongli Liu , Chang Liu , Meidong Lang

During the service life of thermoset matrix fiber-reinforced polymer composites, they are susceptible to structural damage such as delamination after low-velocity impacts, thereby affecting their mechanical properties and structural integrity. Therefore, this paper adjusted the properties of polydicyclopentadiene matrix through copolymerization and incorporation of elastomers to obtain modified polydicyclopentadiene/glass fiber composites with improved interlaminar fracture toughness and impact resistance without significantly sacrificing rigidity. The results indicated that compared to polydicyclopentadiene/glass fiber, the G_Ⅰ,R increased from 2.61 kJ/m² to 4.33 kJ/m² and the G_ⅡC increased from 3.04 kJ/m² to 4.07 kJ/m² by incorporating 10 wt% cyclooctadiene and 2 phr styrene-ethylene-butylene-styrene. The energy dissipation mechanisms leading to these improvements included matrix ductile fracture, shear yielding, particle crack bridging, particle fracture, and particle debonding. Additionally, compared to polydicyclopentadiene/glass fiber, the damage area decreased under drop weight impact by incorporating styrene-ethylene-butylene-styrene. Moreover, compared with epoxy/glass fiber composites, modified polydicyclopentadiene/glass fiber composites demonstrated superior interlaminar fracture toughness and impact resistance. The interlaminar fracture toughness of modified polydicyclopentadiene/glass fiber was comparable to that of thermoplastic matrix composites. This study provided a significant method for enhancing the interlaminar toughness and impact resistance of polydicyclopentadiene/glass fiber composites by adjusting the matrix toughness.

{"title":"Glass fiber-reinforced modified PDCPD composites with improving mode I and mode II interlaminar fracture toughness and impact resistance: Effects of matrix properties","authors":"Tingting Zhang , Jin He , Ning Xu , Wang Yin , Dongli Liu , Chang Liu , Meidong Lang","doi":"10.1016/j.compositesb.2025.112225","DOIUrl":"10.1016/j.compositesb.2025.112225","url":null,"abstract":"<div><div>During the service life of thermoset matrix fiber-reinforced polymer composites, they are susceptible to structural damage such as delamination after low-velocity impacts, thereby affecting their mechanical properties and structural integrity. Therefore, this paper adjusted the properties of polydicyclopentadiene matrix through copolymerization and incorporation of elastomers to obtain modified polydicyclopentadiene/glass fiber composites with improved interlaminar fracture toughness and impact resistance without significantly sacrificing rigidity. The results indicated that compared to polydicyclopentadiene/glass fiber, the G<sub>Ⅰ,R</sub> increased from 2.61 kJ/m<sup>2</sup> to 4.33 kJ/m<sup>2</sup> and the G<sub>ⅡC</sub> increased from 3.04 kJ/m<sup>2</sup> to 4.07 kJ/m<sup>2</sup> by incorporating 10 wt% cyclooctadiene and 2 phr styrene-ethylene-butylene-styrene. The energy dissipation mechanisms leading to these improvements included matrix ductile fracture, shear yielding, particle crack bridging, particle fracture, and particle debonding. Additionally, compared to polydicyclopentadiene/glass fiber, the damage area decreased under drop weight impact by incorporating styrene-ethylene-butylene-styrene. Moreover, compared with epoxy/glass fiber composites, modified polydicyclopentadiene/glass fiber composites demonstrated superior interlaminar fracture toughness and impact resistance. The interlaminar fracture toughness of modified polydicyclopentadiene/glass fiber was comparable to that of thermoplastic matrix composites. This study provided a significant method for enhancing the interlaminar toughness and impact resistance of polydicyclopentadiene/glass fiber composites by adjusting the matrix toughness.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"296 ","pages":"Article 112225"},"PeriodicalIF":12.7,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143379270","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

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