POLYMER COMPOSITES
·
2024
·
IF 4.8
Fei Yan,Junming Wang,Gang Li,Shengtao Dai,Yuhui Ao,Liu Liu
A carbon fiber-tannic acid-silicon dioxide (CF-TA-SiO 2 ) reinforcement with a “diatom frustule-like” structure was built via biomimetic mineralization to boost the performance of carbon fiber/epoxy resin (CF/EP) composites. As a bio-based polyphenolic compound, TA was used to modulate the mineralization of SiO 2 , and the easy agglomeration of SiO 2 was effectively avoided. The interfacial adhesion of the CF/EP composites was considerably heightened by improving the roughness and wettability of CF as well as by increasing the interfacial interactions between CF and the EP. Compared with the pristine composites, the flexural strength, interlaminar shear strength and interfacial shear strength of the CF-TA-SiO 2 /EP composites increased by 41.2%, 56.6%, and 50.4%, respectively. Moreover, the introduction of Si-O-Si and C-O-Si bonds at the interface led to a remarkable improvement in the hydrothermal aging resistance. This research provides a novel interfacial design for advanced composites with excellent interfacial properties, which broadens the application of these composites in hygrothermal environments. Highlights A “diatom frustules-like” structure was successfully constructed on the CF surface. This biomimetic mineralization was simple and environmentally friendly. This method solved the problem of easy agglomeration of SiO 2 . The interfacial properties of composites were obviously improved. The hydrothermal aging resistance of composites was enhanced.
研究领域:
材料科学
·
仿生学
✓ 已验证
产品关联
DOI
高影响因子
COMPOSITES PART B-ENGINEERING
·
2024
·
IF 12.7
Huaiyu Dong,Shuailong Gao,Chen Yu,Zhichen Wang,Yixing Huang,Tian Zhao,Ying Li
Despite numerous reports on microwave absorbing materials and structures with excellent performance, research on the impact of the carrier of microwave absorbers and their preparation processes on microwave absorption performance still faces challenges. To address this issue, this study combines theoretical analysis, simulation, and experimental validation to compare the differences in microwave absorption performance between 3D printed ABS/CF/MWCNTs materials and traditionally cast paraffin/CF/MWCNTs materials. Furthermore, the study explores the impact of linear and concentric filling patterns in 3D printing processes on the performance of tree-shaped microwave absorbing meta-structures. From a material level perspective, the 3D printed ABS/CF/MWCNTs composite plate with a thickness of 3 mm has an effective absorption bandwidth of 5.16 GHz. Additionally, the bio-inspired tree-shaped structure optimized by the ant colony algorithm achieves an effective absorption bandwidth of up to 11.5 GHz at a thickness of 10.8 mm, with a minimum reflection loss of less than −9 dB across the entire frequency range (2–18 GHz). Moreover, the microwave absorbing meta-structure reinforced with carbon fiber-reinforced plastic laminates exhibits outstanding tensile and bending strength, with an average tensile strength and bending strength reaching 197.7 MPa and 188.6 MPa, respectively. In summary, this study provides valuable insights into the optimization of preparation processes for microwave absorbing materials or structures and offers a scientific basis for the design and application of high-performance microwave absorbing materials.
研究领域:
材料科学
·
电磁学
·
制造工程
✓ 已验证
产品关联
DOI
高影响因子
Journal of Energy Storage
·
2024
·
IF 8.9
Peng Gong,Pan Guo,Fei Liu
Organic phase change materials (PCMs), particularly paraffin (PA), are renowned for their substantial latent heat storage capacities. Despite this advantage, their practical application is often hampered by inherent drawbacks such as inadequate leakage resistance , low thermal conductivity , and inefficient photothermal conversion. This study introduces a novel fabrication technique for phase change composites (PCCs) that involves electroplating a nanostructured Cu film onto fiber-structured carbon felts, thereby creating a thermally conductive scaffold for the PCMs . The thermal conductivity of the resulting CuF@PA composite was significantly improved to 1.3 Wm^-1 K^-1, which is 6.5 times higher than that of pure PA. Furthermore, the incorporation of a Cu nanostructure within the composite significantly bolsters its leakage resistance and photothermal conversion efficiency. The CuF@PA composite also boasts a high phase transition enthalpy of 167.1 Jg^-1, showcasing its superior energy storage capability. These findings suggest that the synergistic combination of carbon felt and nano Cu film offers a promising solution to overcome the limitations of traditional PCMs. The developed PCC demonstrates significant promise for diverse applications including solar thermal energy storage and advanced thermal management.
研究领域:
材料科学
·
能源工程
✓ 已验证
产品关联
DOI
高影响因子
Coatings
·
2021
·Vol. 11
·期 11
·1337
·
IF 2.881
Qasim Abbas,Muhammad Sufyan Javed,Awais Ahmad,Sajid Hussain Siyal,Idrees Asim,Rafael Luque,Munirah D. Albaqami,Ammar Mohamed Tighezza
Herein, a crystalline nano-flowers structured zinc oxide (ZnO) was directly grown on carbon fiber textile (CFT) substrate via a simple hydrothermal process and fabricated with a binder-free electrode (denoted as ZnO@CFT) for supercapacitor (SC) utilization. The ZnO@CFT electrode revealed a 201 F·g−1specific capacitance at 1 A·g−1with admirable stability of >90% maintained after 3000 cycles at 10 A·g−1. These impressive findings are responsible for the exceedingly open channels for well-organized and efficient diffusion of effective electrolytic conduction via ZnO and CFT. Consequently, accurate and consistent structural and morphological manufacturing engineering is well regarded when increasing electrode materials’ effective surface area and intrinsic electrical conduction capability. The crystalline structure of ZnO nano-flowers could pave the way for low-cost supercapacitors.Keywords:ZnO;nanoflowers;carbon-fiber-cloth;electrode;supercapacitors
研究领域:
材料科学
·
能源存储
✓ 已验证
DOI
高影响因子
RSC Advances
·
2016
·Vol. 6
·期 44
·37443-37451
·
IF 3.289
Zhijie Gong,Qixing Wu,Fang Wang,Xu Li,Xianping Fan,Hui Yang,Zhongkuan Luo
A carbon matrix with an appropriate porous structure plays a vital role in developing high-performance sulfur/carbon cathodes of lithium–sulfur batteries. In this work, a hierarchical porous carbon fiber (HPCF) with a few mesopores and abundant micropores was prepared via electrospinning with a SiO2 template and subsequent KOH activation. The HPCF with an ultra-high surface area and a large pore volume can construct a loose network structure to promise high sulfur utilization and sufficient sulfur loading. Mesopores can provide pathways for the infiltration of electrolyte to ensure fast transport of lithium ions during electrochemical reactions, whereas micropores can effectively suppress the diffusion of polysulfides by their strong adsorption capability. Due to such advantages, the proposed cathode, with 66 wt% sulfur content, can yield a high reversible capacity of 1070.6 mA h g−1 at 0.5C, and a stable cycle performance with a capacity retention of 88.4% after 100 cycles.
研究领域:
材料科学
·
能源存储
✓ 已验证
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Xianjie Liu,Mingyong Liu,Mengyao Yang,Jiahang Fan,Zijiao Guo,Fankai Lin,Qianchao Ma,Yifei Liu,Xin Min,Zhaohui Huang
In this work, the carbon composites were first produced using low-cost electrically calcined anthracite and resource-utilized waste graphite electrode fine powders as raw materials. The strength and toughness of the composite materials were enhanced by introducing carbon fibers as a reinforced phase. The influences of the addition of carbon fibers on the properties of the samples were investigated. The thermal shock stability of the samples was evaluated by the water rapid cooling method, and the LiFePO 4 (LFP) corrosion resistance of the samples was examined using the static crucible method. The results exhibited that the sample (CF-0.15) with 0.15 wt% carbon fiber addition performed favorable physical properties and optimum mechanical strength. Its apparent porosity was 12.10 %, cold modulus of rupture (CMOR) was 11.95 MPa, cold crushing strength (CCS) was 33.37 MPa, and fracture toughness was 697.67 kPa m 1/2 . The residual cold modulus of rupture of CF-0.15 sample was 10.08 MPa and the residual strength ratio was 84.42 % after three thermal shocks at 1000 °C. The presence of carbon fibers provided bridging and pull-out effects, which improved the strength and toughness of the samples. This promotes the dispersion and absorption of thermal stresses in the samples during cycle thermal shock, resulting in the deflection of internal cracks to prevent further damage. The samples presented excellent corrosion resistance in the LFP erosion experiments, demonstrating significant potential to facilitate the development of the lithium battery industry.
研究领域:
材料科学
·
能源材料
✓ 已验证
产品关联
DOI
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2025
·
IF 21.1
Rui Gan,Lijuan Huang,Wenxuan Shao,Rongling Wang,Yuxuan Ye,Xuanyuan Pei,Qiang Li,Wen Liu,Yuwei Deng,Fei Pan
This study investigates microenvironment-engineered Mn-CNF catalysts with tailored active sites to boost oxidant utilization in Fenton-like water purification. The catalyst was synthesized by in situ anchoring Mn sites onto the carbon framework, improving the electrical conductivity of the carbon fibers and coordination capacity for peroxydisulfate (PDS). The Mn-CNF/PDS system achieved a high degradation rate of target pollutants via electron transfer process (ETP), with 90.2 % TCH removal after 120 hours in continuous flow operation, while maintaining Mn leaching below 0.1 ppm. Theoretical calculations revealed a stronger adsorption energy for PDS on Mn-CNF (-7.35 eV) compared to MnO (-4.35 eV) and CNF (-4.24 eV), with the lowest Gibbs free energy for complex formation. The rapid ETP demonstrated high selectivity in the presence of competing ions and natural organic matter. This work provides a novel strategy for sustained, efficient water purification through microenvironmental engineering in Fenton-like catalysts.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
NANOTECHNOLOGY
·
2024
·Vol. 35
·期 34
·345402
·
IF 2.9
Ruixue Liu,Sainan Wei,Bao Shi,Yizhi Ma,Luning Sun,Wei Wang
The continuous advancements in wearable electronics have drawn significant attention toward 2D MXenes materials for energy storage owing to their abundant availability, adaptability, and distinctive physicochemical properties. Two unresolved concerns currently revolve around environmental pollution by F-containing etching and finite kinetics caused because of re-stacking of nanosheets. In this study, Al was electrochemically etched from porous Ti2AlC electrodes without the use of fluorine, through a selective electrochemical etching process in dilute hydrochloric acid. Subsequently, Ti2CTx MXene was vertically grown on carbon fiber (CF) substrates. The resulting Ti2CTx@CF electrodes are lightweight, thin, and flexible, exhibiting a surface capacitance of 330 mF cm−2 at a constant current density of 1 mA cm−2 after 2000 cycles. They display a surface capacitance retention of 96.16% and a high energy density of 45.3 μWh cm−2 at a power density of 0.497 mW cm−2. These metrics underscore the Ti2CTx@CF electrode's commendable multifunctionality, electrochemical performance, ion transport efficiency, and charge storage capacity. Moreover, a flexible energy storage electrode material with a high area capacity was developed by combining Ti2CTx MXene nanosheets, possessing a large specific surface area, with a flexible carbon fabric substrate.
研究领域:
材料科学
·
能源存储
·
纳米技术
✓ 已验证
DOI
PubMed
高影响因子
FIBERS AND POLYMERS
·
2024
·
IF 2.2
Wang Nana,Wu Ling,Li Shanshan,Qiao Zihang,Zhou Cun
In order to improve the infiltration and adhesion of epoxy resin to CFs and enhance the interfacial properties of CFs/EP composites, the water-soluble epoxy resin prepared by in-situ blending phosphorylation modification was compounded into a high-temperature-resistant carbon fiber sizing agent, and the CFs/EP composites were prepared by vacuum-assisted resin transfer forming method. The results showed that the prepared sizing agent contained epoxy resin, aliphatic ester, polyoxyethylene and other active oxygen-containing groups. It had good water solubility, small particle size, good stability, and could be dissolvable with water at room temperature in any proportion. The average particle size of 1% sizing agent emulsion was 17.7 nm, and it was stable at 4000 rpm for 30 min. The initial decomposition temperature of the sizing agent is 313 ℃, the mass residue rate is 65.60% at 400 ℃, and the mass residue is 20% at 600 ℃, which has excellent high-temperature resistance. The sizing agent can also significantly improve the surface energy of CFs, and increase its surface interface bonding and mechanical properties. When the content of sizing agent on the surface of CFs is 7.88 mg/g, the surface energy is 47.38 mN/m, and the breaking strength is 777.91 MPa, which is 24.42 and 29.29% higher than that of desizing CFs. The bend strength and shearing strength of the prepared CFs/EP composites are 107.38 MPa and 9.83 MPa, which are increased by 81.91 and 20.17% compared with the desizing products. Graphical Abstract
研究领域:
材料科学
·
化学工程
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Dou Hu,Guo-rui Zhang,Xiao-dong Qi,Jing-hui Yang,De-xiang Sun,Yong Wang
Carbon fiber (CF)-reinforced epoxy resin (EP) (E/C) composites are widely used in many fields, but their flame retardancy is usually low due to the “wick effect” of CF. Although interfacial self-catalysis can improve the flame retardancy of composites, the flame retardant efficiency remains low and the mechanical properties require optimization. This work proposed a novel method of assembling polyphosphazene (PZS) and zeolitic imidazolate framework-8 (ZIF-8) on the CF surface to synchronously enhance the flame retardancy and mechanical properties of E/C composites. With the aid of a small amount of 9,10-dihydro-9-oxa-10-phosphaphenanthrene 10-oxide (DOPO) in EP matrix, the limit oxygen index (LOI) was enhanced to 45.1 % and the V -0 standard in UL-94 testing was also achieved. Compared to the blank E/C composite, the peak heat release rate (PHRR) and the total heat release (THR) decreased by 57.1 % and 47.0 %, respectively, while the tensile strength increased to 100.1 MPa, corresponding to an improvement rate of 102.2 %. The mechanisms were mainly attributed to the inhibition of the “wick effect” of CF by PZS and ZIF-8, the strong hydrogen bonding interaction between components, and the interfacial pinning effect of the rough CF surface. This work provides new interfacial structure design method for CF reinforced EP composites with great potential applications in many fields ranging from railway vehicles, new energy automobiles, aircrafts to energy and industrial equipment.
研究领域:
材料科学
·
高分子化学
·
复合材料
✓ 已验证
产品关联
DOI
高影响因子
POLYMER DEGRADATION AND STABILITY
·
2018
·
IF 3.193
Dapeng Liu,Qin Ouyang,Xuefeng Jiang,Hongbo Ma,Yousi Chen,Liu He
Lignin, the most abundant aromatic biopolymer on the earth, is considered as a sustainable carbon fiber precursor. However, lignin-based carbon fibers face great challenges in the fiber spinning and thermal stabilization due to the complex structure of lignin. In this work, lignosulfonate-acrylonitrile-itaconic acid (LS-AN-IA) terpolymer with excellent spinnability was prepared as a novel precursor for carbon fibers, and the thermal properties and thermal stabilization of this precursor were studied. The introduced itaconic acid (IA) comonomer was found to play an important role in improving the thermal properties and promoting the thermal stabilization. The hindering effect of LS on the cyclization reaction of nitrile groups was overcome by the IA comonomer through changing free-radical reaction mechanism to an ionic one. The thermal stabilization of the LS-AN-IA terpolymer precursor fibers could be carried out at a lower temperature and required a shorter time, which helped to reduce the energy and time consumption. Carbon fibers with tensile strength and tensile modulus of 1.74 GPa and 210 GPa, respectively, were obtained from the LS-AN-IA terpolymer.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
·
2019
·
IF 2.752
Zhudan Chu,Linlin Qiu,Yue Chen,Zhishan Zhuang,Pingfan Du,Jie Xiong
Recycling and rapid synthesis of photocatalysts are of significant importance in wastewater degradation. Herein, a systemic strategy was developed, employing loaded nano-TiO 2 on carbon fiber (CF) utilizing microwave hydrothermal method for the fast and efficient preparation of photocatalysts . The prepared TiO 2 /CF was characterized using a variety of analytical techniques, including scanning electron microscopy (SEM), X-ray diffraction (XRD), energy dispersive spectrometer (EDS), and UV–vis. Compared with pure TiO 2 particles, TiO 2 /CF is easily recycled when employed as a photocatalyst. Nitric acid oxidation treatment of CF generates polar functional groups, which improves the bonding properties between TiO 2 and CF. With increasing CF treatment time between 0 and 4 h, the loading rate of TiO 2 increases, until TiO 2 /CF produces optimum photocatalytic activity . Moreover, the experimental results indicate that TiO 2 /CF possesses favorable photocatalytic activity, achieving 97% degradation rate of Rhodamine B within 1 h of UV light irradiation. Furthermore, even after 10 experimental cycles the photocatalyst still generates 88% degradation rate.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）