ACS Applied Polymer Materials
·
2026
·
IF 5.2
Zhang Xu,Liu Lijun,Zhang Lili,Li Xiaoyun,Li Huanting,Wang Junwei,Zhang Shouchun,Li Qifeng
The
inherent brittleness of the epoxy resin in carbon
fiber/epoxy
resin (CF/EP) laminates makes them prone to delamination, which severely
limits their structural reliability. Herein, a molecularly tailored
polyurethane/polyimide (PU/PI) copolymer film was proposed as an interleaf
to construct a gradient-modulus interphase for addressing this issue.
SEM and AFM results revealed that the introduction of PU significantly
improved compatibility with EP, as evidenced by the elimination of
the interface of the pure PI film. The film thickness was identified
as a critical parameter that governed the interpenetration behavior
between EP and PU/PI: insufficient thickness led to a steep modulus
mismatch and weak interfacial bonding, whereas excessive thickness
induced internal defects and interlaminar failure. Only at an optimal
thickness could a broad-gradient interpenetrating network be formed,
enabling a smooth modulus transition across the interlaminar region.
Mechanical test results showed that f-[PU/PI] 35 exhibited
improved performance. Compared with the untoughened CF/EP laminate,
the values of G IC-PROP and G IIC increased
by 100% and 221.3%, respectively. More importantly, the interlaminar
shear strength of f-[PU/PI] 35 also increased by 19.1%,
demonstrating a successful synergy between toughness and strength.
This work provides a paradigm for the design of high-performance composite
materials.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
·
2025
·
IF 14.3
Qiang Gao,Ping Hu,Yuxuan Xia,Yuan Cheng,Guangdong Zhao,Jiaxin Feng,Zibin Chen,Xinghong Zhang
Ultra-high temperature ceramic composites (UHTCCs) with low density and exceptional heat resistance are essential for hypersonic vehicle applications, enabling increased payload capacity and higher Mach numbers. However, developing a fabrication process that enables UHTCCs with both lightweight and superior thermal protection performance is still a challenge. To tackle this problem, in this study, a combinatorial process of vibration-assisted slurry impregnation and polymer infiltration pyrolysis was developed to fabricate gradient lightweight C f /ZrB 2 -SiC composites, consisting of continuous carbon fiber fabric, ZrB 2 -SiC and a carbon aerogels (CAs) layer. The resulting composites exhibit a low density of (0.62–0.96 g cm −3 ) but excellent oxidation and ablation resistance, which can withstand ultrahigh temperatures between 2100 °C and 2500 °C. The porous C f /CAs layer, with a density of 0.38 g cm −3 and specific bending and compressive strengths of 43.47 MPa/(g cm −3 ) and 15.53 MPa/(g cm −3 ), respectively, provides both structural integrity and lightweight properties to the C f /ZrB 2 -SiC composite. Furthermore, the density of the composites can be precisely tailored by adjusting the thickness of the C f /ZrB 2 -SiC layer, allowing for customized fabrication to meet diverse service environment requirements. This flexibility highlights the adaptability of the combined processing techniques. The unique combination of controllable low-density properties and exceptional oxidation and ablation resistance endows gradient lightweight C f /ZrB 2 -SiC composites are promising as lightweight, ultra-high temperature thermal protection systems for hypersonic vehicle applications.
研究领域:
材料科学
·
航空航天工程
✓ 已验证
产品关联
DOI
高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2025
·Vol. 36
·期 5
·e70213
·
IF 3.4
Yonglin Wang,Wenzhen Qin,Jianping Zhou,Kaixuan Lei,Shulin Bai,Jianfang Cao,Xiu Wang,Hongbo Liang
The effect of sodium dodecylbenzenesulfonate (SDBS) surfactant on dispersion performance of sodium styrene sulfonate hydrate modified polyethersulfone (sPES) sizing and the interface of carbon fiber reinforced polyether ether ketone (CF/PEEK) composites was studied. The addition of SDBS reduced the particle size of the sPES dispersed in water, improving the film-forming and stabilization of the sizing agent. It was found that the SDBS would not affect the interfacial adhesion of CF/PEEK composites when the weight of SDBS was below 0.6 wt%, but the excessive amount of SDBS seriously reduced the interface strength in composites. Finally, the enhancement mechanism of the sPES/SDBS sizing agent for CF/PEEK composites interface was elaborated.
研究领域:
材料科学
·
复合材料
✓ 已验证
产品关联
DOI
高影响因子
Surfaces and Interfaces
·
2024
·
IF 5.7
Naiyu Jiang,Yingze Li,Qiao Wang,Nan Zhou,Hongyan Zhang,Xiaohu Zou,Dongxing Zhang
Carbon fiber (CF) reinforced polymer composites have found widespread application due to their exceptional properties, including high specific strength and modulus, thermal stability, and chemical durability. However, since the interface serves as the bridge for load transfer between fiber and resin, the interfacial property directly affects the holistic performance of the composites. Considering the inertness of CF and polyetheretherketone (PEEK), as well as the modulus gap between them, we propose a flexible-rigid sizing agent to enhance the interfacial interaction. The sizing layers are constructed by the transition layer of polyetherimide (PEI) and the hybrid nanoparticles consisting of rare-earth coordination bonded flexible aramid nanofiber and rigid nano-TiO 2 . Calculated by density functional theory (DFT), the electron density difference (EDD) result displays the transfer of electrons between aramid nanofiber and nano-TiO 2 acted by rare-earth element. This treatment with flexible-rigid sizing agent significantly improves the surface activity, roughness, and wettability of CF. Meanwhile, the flexural strength and interlaminate shear strength (ILSS) of as-prepared CF/PEEK composites are 91.4% (810.2 MPa) and 58.2% (82.6 MPa) higher than those of unmodified CF/PEEK composites. This work presents a robust and promising approach for fabricating high-performance CF/PEEK composites.
研究领域:
材料科学
·
复合材料工程
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2025
·
IF 6.9
Xiaohui Xia,Wenxia Zhu,Dong Su,Xiao Yan
High-performance electromagnetic interference (EMI) shielding materials are required for advanced electronic devices and communication systems. Here, a nanocarbon-reinforced-silicon boron carbonitride film (denoted as SiBCN@CF/CNTs) with sandwiched structure was prepared via polyborosilazane (PBSZ) infiltration, lamination and pyrolysis by using carbon nanotubes (CNTs) films as surface layers and carbon foam (CF) as intermediate layer. The SiBCN@CNTs surface layer with high electrical conductivity effectively reflects most of electromagnetic waves, and the SiBCN@CF intermediate layer further increases the absorption of incoming waves via ohmic loss and multiple reflection loss. The construction of the conductive SiBCN@CF layer can effectively enhance the total EMI shielding effectiveness (EMI SE Total ) of the films up to 44.3 dB, much higher than that of 25.8 dB for the sandwiched film with nonconductive intermediate layer. Moreover, increased porosity in the SiBCN@CF layer endows the SiBCN@CF/CNTs film with a high specific EMI SE Total of up to 131.2 dB cm 3 g −1 causes by increased multiple reflection loss. Therefore, it is an ideal route to construct a conductive network and porous structure in sandwiched EMI material for achieving high-efficiency shielding performance.
研究领域:
材料科学
·
电子工程
✓ 已验证
产品关联
DOI
高影响因子
COMPOSITE STRUCTURES
·
2024
·
IF 6.3
Fushuai Wang,Chi Zhang,Xinhui Geng,Qiang Gao,Liancai Xun,Wuju Wang,Xinghong Zhang,Ping Hu
With the increasing Mach numbers of hypersonic vehicles, extreme aerothermal environments impose substantial challenges on vehicle materials. High thermal conductivity materials facilitate rapid heat redistribution to diminish localized thermal accumulation and reduce material thermal damage, providing a viable route for further enhancing the operational temperature of materials. Here, we successfully fabricate high thermal conductivity C f /HfB 2 -SiC composites through the solid–liquid combination process, achieving an x-direction thermal conductivity of 161.11 W/(m·K), which represents an order of magnitude improvement over traditional carbon fiber-reinforced ultra-high temperature ceramic composites. 3D X-ray computed tomography (CT) is employed to analyze the structural composition of the high thermal conductivity C f /HfB 2 -SiC composites, and the Gaussian Mixture Model is applied to segment the CT images, thus establishing a mesoscale representative volume element (RVE) model based on CT. Combining theoretical models and finite element analysis, we propose a multiscale heat transfer model for high thermal conductivity C f /HfB 2 -SiC composites, which effectively investigates the heat transfer mechanisms of the composites. The fabrication and multiscale heat transfer modeling of high thermal conductivity C f /HfB 2 -SiC composites provide a theoretical basis and guidance for enhancing material performance and design optimization.
研究领域:
材料科学
·
航空航天工程
✓ 已验证
产品关联
DOI
高影响因子
Foods
·
2026
·Vol. 15
·期 11
·2038
·
IF 6
Yan-Chun Wang,Yu-Heng Mao,Meng-Qi Huang,Ting-Chi Wen,You Luo,Chun-Xiao Wang,Ang-Xin Song
In the present study, medium composition ofCordyceps farinosaCf-GZU06 mycelial fermentation was optimized using response surface methodology. Both intracellular polysaccharides (IPS) and extracellular polysaccharides (EPS) fromC. farinosaCf-GZU06 were obtained and investigated for their structural properties and prebiotic potential. The final medium consisted of 76.170 g/L glucose, 11.056 g/L peptone, 22.201 g/L yeast extract, 0.600 g/L MgSO4·7H2O and 1.400 g/L KH2PO4with the maximum mycelial biomass reaching 44.797 g/L. Structural characteristics showed that EPS and IPS had similar primary structures but different fine structures, especially the aggregate states and microstructures. The primary structures of these two polysaccharides showed limited susceptibility in in vitro digestion with no major changes in their molecular weight (MW) profiles, while the fine structure could be altered during digestion process with less than 17% (w/w) reducing sugar detected. Both EPS and IPS could reshape the fecal microbial composition toward a susceptible balance. The production of short-chain fatty acids (SCFAs) including acetate, propionic and butyric acid was significantly increased, and the total SCFAs was increased to 315.18 mM and 302.81 mM by EPS and IPS respectively compared to inulin (279.06 mM). Microbial metabolic profiles showed that EPS and IPS had totally different impacts on bacterial metabolism. These results suggested that EPS and IPS exhibited a potential prebiotic effect under in vitro conditions, supporting their further evaluation as prebiotic candidates.
✓ 已验证
DOI
PubMed
高影响因子
COMPOSITES PART B-ENGINEERING
·
2020
·
IF 7.635
Tianwen Yan,Fei Yan,Shiyi Li,Ming Li,Yu Liu,Mengjie Zhang,Lin Jin,Lei Shang,Liu Liu,Yuhui Ao
In this study, a series of soluble aminated polyether-ether-ketone (PEEK-NH 2 ) with good compatibility were designed. Novel water-based sizing agents were then prepared by emulsion/solvent evaporation method, which were selected as CF surface modifiers to improve the interfacial properties of CF/PEEK composites. TGA and DSC results showed that PEEK-NH 2 exhibit excellent thermal properties, and the T g was increased by up to 30.9 °C. The particle diameters of sizing agents range from 54.3 to 73.6 nm, and the contact angles of modified CF were significantly decreased. According to the interfacial properties results, PEEK–NH 2 –35 presented the most effective reinforcing effect, the interlaminar shear strength and flexural strength were increased by 43.1% and 62.2%, as compared to un-sized CF composites . Moreover, the interfacial strengthening mechanisms of sizing agent was investigated. The improved interfacial adhesion benefits from PEEK-NH 2 which performs as effective stress transfer bridge at the interface.
研究领域:
材料科学
·
复合材料工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
·
2023
·
IF 10.9
Yang Hu,Dewei Ni,Bowen Chen,Feiyan Cai,Xuegang Zou,Fan Zhang,Yusheng Ding,Xiangyu Zhang,Shaoming Dong
In this work, C f /(CrZrHfNbTa)C–SiC high-entropy ceramic matrix composites with good load-bearing, electromagnetic shielding and ablation resistance were designed and reported for the first time. The composites were fabricated by an efficient combined processing of slurry infiltration lamination (SIL) and precursor infiltration and pyrolysis (PIP). Density and porosity of the as-fabricated composites are 2.72 g/cm 3 and 12.44 vol.%, respectively, and the flexural strength is 185 ± 13 MPa. Due to the carbon fiber reinforcement with high conductivity and strong reflection, and high-entropy (CrZrHfNbTa)C ceramic matrix with strong absorbability, the total Electromagnetic interference shielding efficiency (SE T ) of the composites with a thickness of 3 mm are as high as 88.2 dB and 90 dB respectively in X-band and Ku-band. This means that higher than 99.999999 % electromagnetic shielding is achieved at 8–18 GHz, showing excellent electromagnetic shielding performance. The C f /(CrZrHfNbTa)C–SiC composites also present excellent ablation resistance, with the linear and mass ablation rates of 0.9 µm/s and 1.82 mg/s after ablation at the heat flux of 5 MW/m 2 for 300 s (∼2450 °C). This work opens a new insight for the synergistic design of structural and functional integrated materials with load-bearing, electromagnetic shielding and ablation resistance, etc.
✓ 已验证
产品关联
DOI
高影响因子
COMPOSITES SCIENCE AND TECHNOLOGY
·
2023
·
IF 9.1
Naiyu Jiang,Hanxiong Lyu,Yingze Li,Nuo Xu,Hongyan Zhang,Nan Zhou,Xiaohu Zou,Dongxing Zhang
Improving the adhesion between metal sheet and resin is an important issue for the development of high-performance fiber metal laminates (FMLs). In this study, a novel rare-earth surface modification is applied for the first time to enhance the interfacial bonding strength of titanium sheets and polyetheretherketone (PEEK). Density functional theory (DFT) calculations show that cerium element could form coordination bonds at the interfaces between metallic titanium and resin. The surface wettability of titanium sheet is boosted, which is beneficial to PEEK infiltration and physical adhesion improvement. Meanwhile, with the existence of coordination bonds at the interface, the interfacial shear strength between titanium and PEEK, and the flexural strength and interlaminar shear strength of CF/PEEK-Ti laminates are enhanced significantly. Therefore, the cerium surface modification method proposed in this study has great potentials for FMLs, which provides a new strategy for generating chemical bond at interfaces between metal and resin.
研究领域:
材料科学
·
机械工程
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2022
·Vol. 48
·期 13
·19392-19398
·
IF 5.532
Junjie Qian,Anze shui,Bin Du,Chao He,Mei Cai,Xinrong Zhong
Continuous carbon fiber (CF) reinforced ceramic composites have been extensively studied owing to their excellent resistance to thermal shock , low density, and low thermal conductivity . However, the weak oxidation resistance of these composites has considerably limited their applications in some aerobic environments. Herein, high-emissivity silicon-carbide (SiC)-based ceramic coating was fabricated on SiOC/CF matrix using a facile vacuum impregnation technology and brush method. The coating reinforced with in-situ grown SiC nanowires could protect the SiOC/CF matrix, and the CFs were not oxidized after 60 min oxidation at 1500 °C.
✓ 已验证
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2019
·
IF 5.383
Xiaoyu Zhao,Guangyu Li,Minghui Feng,Yanfei Wang
Compared to traditional extraction of lithium using solar evaporation, the electrochemical extraction is advantageous in many aspects, including elevated efficiency, superior selectivity, and low environmental pollution. In this study, LiNi 0·038 Mo 0·012 Mn 1·95 O 4 (LNMMO) with good lattice structure and nano morphology was successfully prepared and confirmed by XRD (X-ray diffraction), SEM-Mapping (scanning electron microscope mapping), SEM (scanning electron microscope), and EDX (Energy-dispersive X-ray spectroscopy) analyses. The pairing of LNMMO with activated carbon (AC) yielded obvious cost-effective and environmentally friendly composite when compared to conventional Noble metals used for battery anodes, such as Ag and Pt. A hybrid supercapacitor was assembled using delithiated LNMMO cathode (NMMO) and AC anode to form NMMO/AC. The cell showed high capacity, high rate performance, and excellent cyclic stability. A continuous flow NMMO/AC hybrid supercapacitor (CF-NMMO/AC) was developed for selective capture of Li + in aqueous solution by combining NMMO/AC hybrid supercapacitor with self-designed continuous flow control system. The device delivered high Li + extraction efficiencies reaching 14.4 mg/g per one cycle in simulated brine by consuming only 7.91 W h/mol Li + . The overall process produced 97.2％ Li + in simulated brine at optimized operating conditions. Overall, CF-NMMO/AC system provided higher efficiency, superior selectivity, and moderate energy utilization for Li + recovery from brine.
研究领域:
电化学
·
环境科学
·
材料科学
·
能源工程
·
分离科学
·
可持续技术
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）