Article
Materials Science, Composites
Jeffrey J. Kim, Avery D. Brown, Charles E. Bakis, Edward C. Smith
Summary: The study aims to explore hybrid CNT - carbon/epoxy composites for high damping and stiffness, and the system with highly aligned CNT yarns treated with a non-ionic surfactant, located at the interlayers and oriented along the loading direction, shows superior damping and stiffness characteristics.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Article
Nanoscience & Nanotechnology
Ping Tang, Zijian Zhang, Chenxin Guo, Shaohua Zeng, Pengpeng Chen, Ying Xu, Wangyan Nie, Yifeng Zhou
Summary: Carbon nanotubes have great potential for use in microelectronic packaging due to their excellent thermal conductivities. However, their high electroconductibility and poor radial conductivity limit their application in insulating materials. In this study, a heterostructured brushlike hybrid was prepared by anchoring amine-functionalized multiwalled carbon nanotubes onto insulating montmorillonite. The resulting composites exhibited improved thermal conductivity, mechanical properties, and thermal stability, providing a promising strategy for fabricating polymer composites.
ACS APPLIED NANO MATERIALS
(2022)
Review
Polymer Science
Basheer A. Alshammari, Mohammed S. Alsuhybani, Alaa M. Almushaikeh, Bander M. Alotaibi, Asma M. Alenad, Naif B. Alqahtani, Abdullah G. Alharbi
Summary: Carbon fiber-reinforced thermoplastic polymers have various advantages such as high strength-to-weight ratio, high wear resistance, and recyclability, making them widely used in industrial applications. The focus of the study is on the superiority of carbon fiber-reinforced thermoplastic polymers over thermosetting and elastomer polymers, as well as the in-depth exploration of surface modification techniques.
Article
Materials Science, Composites
Mingliang Wu, Tianwen Luo, Junjie Lu, Yueqiong Wang, Baofeng Lin, Chuanhui Xu
Summary: Multifunctional and easily-controlled self-healing rubbers with high performance were developed in this study. The composites showed satisfactory mechanical strength, photothermal conversion, and accurate self-healing. The self-healing capacity was realized through the construction of an ionic supramolecular network, and the photothermal effect of carbon nanotubes effectively promoted the healing process. These high-performance self-healing rubbers have great potential in various applications.
COMPOSITES SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Composites
Yichuan Zhang, Zhipeng Li, Guangming Chen, Yue Hu, Liang Deng
Summary: In this study, the trade-off between thermoelectric (TE) and mechanical (ME) performances in flexible polycarbonate (PC)/single-walled carbon nanotube (SWCNT) composites was successfully decoupled via interfacial adjustment. The obtained composite exhibited improved TE and ME performances by enhancing interfacial affinity and electrical conductivity.
COMPOSITES SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Physical
Bo Song, Zhide Liu, Tingting Wang, Li Wang
Summary: By uniformly grafting CNTs onto PBO fiber composites at a high density, the surface wettability and interfacial interaction were improved, resulting in significantly increased IFSS and ILSS values in the modified composites. The mechanical properties of the interphase were enhanced, leading to effective transfer of interfacial load and improved structural stability, with a substantial increase in impact strength observed in the modified composites.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Polymer Science
Fei Chen, Ji Zhou, Haoruo Zhang, Zhengguang Heng, Yang Chen, Huawei Zou, Mei Liang
Summary: This study proposes an interesting strategy to simultaneously increase the tensile strength and fracture toughness of epoxy matrix by in-situ constructing block copolymer nanostructures. Through the optimization of nanostructures, the tensile strength and fracture toughness of epoxy matrix are increased by 19% and 236%, respectively, without lowering its Tg. The impact of block copolymers on the morphologies and transformation of nanostructures, the relationship between nanostructures and epoxy properties, and the strengthening and toughening mechanism are systematically studied. Moreover, the epoxy resins with excellent tensile properties and toughness are used to enhance the compressive and interfacial properties of CFRP composites.
Article
Chemistry, Physical
Haizhou Liu, Ying Xu, Xiaodong Zhao, Dong Han, Fei Zhao, Qiaowen Yang
Summary: This article introduces a novel lightweight foam material (CGF) composed of carbon nanotubes (CNTs) and reduced graphene oxide (rGO) for electromagnetic interference (EMI) shielding. The addition of 20 wt% CNTs expands the conductive network and increases the conductivity of the CGF material by 274.4%. The CGF material exhibits excellent EMI shielding effectiveness (SE) of 71.4 dB at a low mass per unit area of 12.5 mg·cm(-2). The CGF material also shows high comprehensive performance in terms of SE divided by density (SED) and mass per unit area (SEMA) values.
Article
Materials Science, Composites
Hang Zhang, Zhipeng Zhou, Jiali Qiu, Pengwan Chen, Weifu Sun
Summary: The study found that the elastic properties of carbon nanotubes/polyethylene composites are affected by intrinsic defects, and the individual elastic properties of CNTs and the interfacial interaction between CNTs and the matrix are key factors influencing the composite material properties.
COMPOSITES COMMUNICATIONS
(2021)
Article
Polymer Science
Chenping Zhang, Yugang Duan, Hong Xiao, Ben Wang, Yueke Ming, Yansong Zhu, Fugan Zhang
Summary: This paper investigates the interlaminar bond strength of laser in-situ consolidation CF/PEEK thermoplastic composites. The results show that porosity significantly affects the interlaminar shear strength, while there is no correlation between crystallinity and interlaminar shear strength. The interlaminar shear strength in the heated tool in-situ consolidation group is significantly higher than the constant pressure in-situ consolidation group.
Article
Materials Science, Composites
Hao Sun, Tong Ji, Hongjie Bi, Min Xu, Liping Cai, Maurizio Manzo
Summary: This study designed and fabricated a CS/CNT/NR composite with high thermal conductivity by incorporating 1D carbon nanotubes into 3D wood-derived carbon scaffold, demonstrating a synergistic effect between CS and CNT for forming a heat percolation network. The unique 3D interconnected structure of the composite ensures high-speed heat transport and promotes the use of renewable materials for efficient heat dissipation in thermal management materials.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Article
Mechanics
Taegeon Kil, D. W. Jin, Beomjoo Yang, H. K. Lee
Summary: This study proposes a micromechanical model that considers the curviness of carbon nanotubes and the interfacial resistivity in predicting the electrical conductivity of polymeric composites. Through numerical studies and the use of a genetic algorithm to optimize model parameters, the model closely simulates the effective electrical conductivity of the composites, demonstrating credible accuracy in comparison with experimental measurements.
COMPOSITE STRUCTURES
(2021)
Article
Materials Science, Composites
Avery D. Brown, Charles E. Bakis, Edward C. Smith
Summary: The objective of this study is to evaluate the dynamic mechanical properties of a hybrid carbon fiber reinforced epoxy composite laminate containing CNT-rich interlayers. The results show that the surface treatments and alignment of the CNTs have significant effects on the mechanical properties of the composite material, and both surface treatments and alignment can increase the loss modulus and storage modulus of the composite material.
COMPOSITES SCIENCE AND TECHNOLOGY
(2023)
Review
Engineering, Manufacturing
Tejas Pramod Naik, Inderdeep Singh, Apurbba Kumar Sharma
Summary: The search for novel energy-efficient, eco-friendly, and time-saving manufacturing techniques is gaining momentum recently. Polymer composites have been increasingly used in various industrial applications, but their efficient processing remains challenging. This article provides an overview of the basics of microwave heating and the physics behind the microwave processing of polymer composites, reviews the state-of-the-art on microwave processing of thermoset and thermoplastic-based composites, and highlights the challenges and constraints in adopting microwave technology for curing composites at an industrial scale. The article also indicates the future scope of work involving microwave scanning route for 3D printing of polymer matrix composite parts.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2022)
Article
Polymer Science
Alexander Poellinger, Thomas Koch, Stefan Krenn, Fabian Wilde, Domonkos Tolnai, Bernhard Plank, Sarah Heupl, Johannes Bernardi, Karin Whitmore, Marc Langela, Sandra Seichter, Michael Schoebel
Summary: Efficient transport of hydrogen is crucial for the widespread adoption of renewable energy. Reciprocating piston compressors with high strength non-lubricated sealing solutions are key technologies to meet the demands for gas purity and high-pressure gradients in hydrogen applications.
Article
Chemistry, Analytical
Antonio del Bosque, Xoan F. Sanchez-Romate, Maria Sanchez, Alejandro Urena
Summary: The use of graphene and other carbon nanoparticles in developing chemical and physical sensors is of great interest. A graphene nanoplatelet-PDMS sensor is proposed in this study, with a focus on its strain-sensing capabilities and crack propagation mechanisms. The results show that the sensor has high sensitivity and robustness, and it can successfully detect human motion by monitoring neck, wrist, and facial movements.
Article
Chemistry, Physical
Antonio del Bosque, Xoan F. Sanches-Romate, Maria Sanchez, Alejandro Urena
Summary: Highly stretchable sensors based on graphene nanoplatelet reinforced polydimethylsiloxane (PDMS) have been manufactured for human motion monitoring purposes. The sensors exhibit ultra-high gauge factor values at low strain levels and decreasing sensitivity with increasing graphene nanoplatelet content. Electrical resistance and impedance spectroscopy analyses reveal the electrical behaviors of the sensors under tensile and compressive conditions. A proof of concept study demonstrates the capability of the sensors in detecting various human motions.
Article
Materials Science, Composites
Xoan F. Sanchez-Romate, Carlos Gonzalez, Alberto Jimenez-Suarez, Silvia G. Prolongo
Summary: A novel method for strain and crack propagation monitoring based on Joule heating capabilities of multiscale carbon nanotube reinforced glass fiber composites (GFRP-CNT) is reported. The method shows good sensitivity and strain resolution for early crack initiation and subsequent propagation, and can create a complete mapping of the health of the structure using thermal IR imaging.
COMPOSITES SCIENCE AND TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
David Martinez-Diaz, Alejandro Cortes, Alberto Jimenez-Suarez, Silvia G. Prolongo
Summary: There is a growing concern in the scientific community regarding the disposal of end-of-life products derived from polymeric matrix composites. Covalent adaptable networks, particularly those based on disulfide bonds, offer a promising approach for developing composite parts that can be dissolved in specific solvents to recover the continuous fiber reinforcement. This study investigated the impact of hardener isomerism and amine/epoxy ratio on the chemical recycling capabilities, with results indicating the need for using excess amounts of hardeners to dissolve these vitrimers. Furthermore, networks based on 2-aminophenyl disulfide demonstrated faster dissolution times compared to those based on 4-aminophenyl disulfide, despite the latter being more commonly used and expensive.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Alejandro Cortes, Alberto Jimenez-Suarez, Alejandro Urena, Silvia G. Prolongo, Monica Campo
Summary: This study investigates the electrical and electrothermal properties of CNT/GNP-doped nanocomposites in order to optimize their anti-icing and de-icing capabilities. A comparison is made between 3D-printed circuits and coatings based on these materials. The results show that increasing the nanoparticle content leads to higher electrical conductivity and a larger cross-sectional area of the coatings, resulting in higher heat generation. In addition, the successful de-icing test performed by the specimen with the highest self-heating capability demonstrates the suitability of the studied nanocomposites for de-icing purposes.
APPLIED SCIENCES-BASEL
(2022)
Article
Materials Science, Characterization & Testing
L. M. Saiz, M. G. Prolongo, V Bonache, A. Jimenez-Suarez, S. G. Prolongo
Summary: This study successfully synthesized photo-cured thermosetting systems with self-healing capabilities by introducing monomers with disulfide bonds. The resulting materials exhibit improved mechanical properties and a lower glass transition temperature compared to typical acrylate thermosets.
Article
Polymer Science
Rocio Calderon-Villajos, Xoan Fernandez Sanchez-Romate, Alberto Jimenez-Suarez, Silvia Gonzalez Prolongo
Summary: Self-healing materials have become a focus of interest in recent years. The use of thermoset/thermoplastics blends offers a promising option with low activation temperatures and infinite healing cycles. However, a systematic study of healing conditions and evaluation is necessary for further industrial development.
Article
Polymer Science
Ignacio Collado, Alberto Jimenez-Suarez, Rocio Moriche, Gilberto Del Rosario, Silvia Gonzalez Prolongo
Summary: This study investigates the influence of the average surface area of different graphene nanoplatelets (GNPs) on the thermo-electrical behavior and electromagnetic signal attenuation of epoxy composites. The results show that the dispersion time and content of GNPs significantly affect the electrical and thermal conductivity of the composites. Furthermore, the shielding effect of different GNPs remains constant within a certain frequency range.
Editorial Material
Chemistry, Multidisciplinary
Alberto Jimenez-Suarez, Silvia G. G. Prolongo
APPLIED SCIENCES-BASEL
(2023)
Article
Nanoscience & Nanotechnology
Xoan F. Sanchez-Romate, Edgar Gomez, Maria Sanchez, Alejandro Urena
Summary: Carbon nanoparticle-reinforced adhesive films have been studied as surface sensors to detect small strains. Graphene nanoplatelets (GNPs) have shown a higher gauge factor compared to carbon nanotubes (CNTs) at low strains due to their 2D nature. The adhesive film has successfully been applied as a surface sensor for strain monitoring in an aluminum plate, with repeatable signals and agreement with the mechanical response.
Article
Polymer Science
Bianca K. Munoz, Andres Gonzalez-Banciella, Daniel Urena, Maria Sanchez, Alejandro Urena
Summary: Different modifications of woven carbon fiber based on carbon aerogel, copper oxide nanoparticles, and lignin have been tested for the fabrication and performance of a flexible supercapacitor. The device with a sandwich type configuration showed the best performance and maintained good electrochemical values even during and after bending.
Article
Chemistry, Multidisciplinary
David Martinez-Diaz, Emma Espeute, Alberto Jimenez-Suarez, Silvia Gonzalez Prolongo
Summary: This study proposes a mechanical recycling method for carbon fiber prepregs to obtain multifunctional coatings with Joule effect heating capabilities. By incorporating proper size and distributed short recycled carbon fiber into the coating, high electrical conductivity is achieved, resulting in a low power self-heating coating.
Article
Chemistry, Multidisciplinary
M. I. Rodriguez-Tapiador, A. Jimenez-Suarez, A. Lama, N. Gordillo, J. M. Asensi, G. del Rosario, J. Merino, J. Bertomeu, A. Agarwal, S. Fernandez
Summary: This study investigates the effects of temperature and gas working pressure on the solar absorption capabilities of Cu3N thin films. The results show that Cu3N thin films have favorable optical properties and resilience against defects, making them promising for solar energy applications.
Article
Engineering, Multidisciplinary
Keyu Zhu, Xitao Zheng, Jing Peng, Jiaming Sun, Ruilin Huang, Leilei Yan
Summary: This paper discusses the influence of multiple impacts on the compression strength of honeycomb sandwich structures with composite face sheets. It is found that the size of the impactor affects the turning point of the compression strength. Additionally, high impact energy leads to damage in the bottom face sheet and reduces the overall compression strength.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Danqian Wang, Yanfei Yue, Jueshi Qian
Summary: Magnesium Potassium Phosphate Cement (MKPC) as a binder for steel rebars shows improved corrosion resistance when subjected to carbonation, due to the increase in pH and the formation of a more protective oxide film.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Zhibin Li, Wenyu Wang, Pengcheng Xue, Xingyu Wei, Jian Xiong
Summary: This work proposes a design approach and manufacturing method for carbon fiber reinforced plastic (CFRP) corrugated sandwich truncated cones (CSTC) to improve their anti-debonding ability and ensure reliability. The study establishes theoretical models for CSTCs' stiffness and failure modes, which are verified through experiments and finite element analysis (FEA). The research reveals the effect of geometric parameters on failure modes and performs an optimal design for CSTC structures. The findings have significant implications for the design and application of lightweight CSTCs in constructions, such as launch vehicle adapters.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Mingyu Zhang, Lei Chu, Jiahua Chen, Fuxun Qi, Xiaoyan Li, Xinliang Chen, Deng-Guang Yu
Summary: This review summarizes the different structures and construction methods of fibrous membranes with asymmetric wettability. It also reviews the biological applications of these membranes and suggests future challenges.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
E. Mofakhami, L. Gervat, B. Fayolle, G. Miquelard-Garnier, C. Ovalle, L. Laiarinandrasana
Summary: This study investigates the effects of fibre concentration on the mechanical response of welded glass-fibre-reinforced polypropylene (GF-PP). Experimental observations reveal a significant reduction in weld ratio, up to 60%, indicating a decreased strength compared to the bulk material. Increasing fibre content in the welded material results in a decrease in stress at break and strain at the maximum stress. The use of DIC technique and X-ray microtomography further confirms the localized strain amplification in the welded zone due to the significant increase in fibre density.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Emad Pourahmadi, Farjad Shadmehri, Rajamohan Ganesan
Summary: This research compares the mechanical properties of laminates manufactured using automated fiber placement and conventional autoclave curing methods. The results show that laminates manufactured using automated fiber placement have a lower interlaminar shear strength compared to laminates reconsolidated using autoclave curing. A finite element simulation method is proposed to quantitatively analyze these differences.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Johnny Jakobsen, Benny Endelt, Fahimeh Shakibapour
Summary: This study proposes a new bolted/pinned joining method for composite applications, which improves load transfer by introducing a patch-type reinforcement. Experimental results demonstrate significant improvements in both static and fatigue load conditions compared to existing methods. Finite element simulations highlight the advantage of this method, as it creates a more efficient load-transferring mechanism through different stress distributions.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Gisele G. Cintra, Janine D. Vieira, Daniel C. T. Cardoso, Thomas Keller
Summary: This paper proposes a novel approach to assess multi-crack behavior in layered fiber-polymer composites. The generated Compliance and R-curves provide useful insights into understanding the multiple delamination process and allow for separate evaluation of strain energy release rate (SERR) for each crack. The developed cohesive zone model successfully simulates the failure process zone of three parallel cracks, showing good agreement between the numerical model and experimental results.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Renil Thomas Kidangan, Sreedhar Unnikrishnakurup, C. Krishnamurthy, Krishnan Balasubramaniam
Summary: The induction heating process can accurately identify fiber orientation and stacking order, making it a valuable tool for large-area inspection and quality control in manufacturing fiber-reinforced composites.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Sungjun Hwang, Yousoo Han, Douglas J. Gardner
Summary: Bleached Kraft pulp, unbleached Kraft pulp, and old corrugated cardboard pulp are suitable for producing cellulose nanofibril suspensions. Spray drying is a fast, simple, cost-effective, and scalable drying method. Spray-dried cellulose nanofibrils can be used as reinforcing materials in polypropylene matrices. The particle size of cellulose nanofibrils affects the material properties.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Mehdi Mahdavi, Abbas Zolfaghari
Summary: This study aims to improve the recovery forces of shape memory polymers (SMPs) through material extrusion additive manufacturing. By using glass fiber (GF) as reinforcement and manufacturing multi-layer composite specimens, it was found that PLA with 6.62% GF exhibited the best recovery force, which was further optimized through annealing heat treatment.
COMPOSITES PART B-ENGINEERING
(2024)
Review
Engineering, Multidisciplinary
Xiang Ao, Antonio Vazquez-Lopez, Davide Mocerino, Carlos Gonzalez, De-Yi Wang
Summary: The vulnerability of natural fibers to heat and fire poses a significant challenge for their substitution of traditional fiber reinforcements in composite materials. Natural fiber/polymer composites (NFCs) are regarded as potential candidates for engineering applications due to their environmental friendliness and low-impact sourcing. Thus, appropriate approaches need to be implemented to enhance the fire safety of NFCs. This review summarizes and discusses the latest understanding of flammability and thermal properties of natural fibers, with a special focus on their interaction with polymer matrix in fire behavior. Additionally, the latest developments in flame-retardant approaches for NFCs are reviewed, covering both flame retardancy and fire structural integrity. Finally, future prospects and perspectives on fire safety of NFCs are proposed, providing insights into further advancements of NFCs.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Cheng Wang, Siqi Huo, Guofeng Ye, Bingtao Wang, Zhenghong Guo, Qi Zhang, Pingan Song, Hao Wang, Zhitian Liu
Summary: The demand for multifunctional, transparent epoxy resin with superior dielectric, mechanical, and fire-safety performances is increasing in modern industries. Researchers have developed an epoxidized, phosphaphenanthrene-containing poly(styrene butadiene styrene) (ESD) for advanced fire-safe epoxy resin, which maintains high transparency and improves UV-blocking property. The addition of 10 wt% ESD results in improved mechanical properties, decreased dielectric constant and loss, and outperformance compared to other fire-safe epoxy resins. This research provides an effective method for developing multifunctional flame-retardant epoxy resin.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Bo Pang, Heping Zheng, Zuquan Jin, Dongshuai Hou, Yunsheng Zhang, Xiaoyun Song, Yanan Sun, Zhiyong Liu, Wei She, Lin Yang, Mengyuan Li
Summary: This study develops an internal superhydrophobic material (ISM) using waste denitrification fly ash, which maintains stable hydrophobicity under harsh conditions of use and does not rely on expensive fluor-based surface modifications. The synthesized ISM has excellent matrix strength, strong waterproof properties, and retains superhydrophobicity even at damaged or friction interfaces.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Meirbek Mussatayev, Qiuji Yi, Mark Fitzgerald, Vincent K. Maes, Paul Wilcox, Robert Hughes
Summary: Real-time monitoring of carbon fibre composites during Automated Fibre Placement (AFP) manufacturing remains a challenge for non-destructive evaluation (NDE) techniques. This study designed a directional eddy-current (EC) probe to evaluate the detectability of out-of-plane wrinkles. Experimental evaluations and finite element modeling were conducted to better understand the relationship between eddy-current density and defect detection. The findings suggest that the probe configuration with an asymmetric driver coil and differential pickup coils shows the best capability for wrinkle detection.
COMPOSITES PART B-ENGINEERING
(2024)
