Article
Engineering, Manufacturing
Xuezhong Zhang, Dong Xiang, Yuanpeng Wu, Eileen Harkin-Jones, Jiabin Shen, Yong Ye, Wei Tan, Junjie Wang, Ping Wang, Chunxia Zhao, Yuntao Li
Summary: By introducing reduced graphene oxide (rGO) decorated with immobilized carbon nanotubes (CNTs) into a thermoplastic polyurethane (TPU) matrix, a conductive nanocomposite was successfully fabricated to produce flexible strain sensors with high sensitivity and stability. The biaxial stretching process plays a crucial role in promoting the dispersion and alignment of the nanofillers, while the synergy between CNTs and rGO nanoparticles affects the resistivity and monitoring range of the sensors. The ability of the sensor to recognize body movements and physiological activities was demonstrated.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2021)
Article
Polymer Science
Yevgen Mamunya, Oleksii Maruzhenko, Roman Kolisnyk, Maksym Iurzhenko, Andrii Pylypenko, Olha Masiuchok, Marcin Godzierz, Igor Krivtsun, Barbara Trzebicka, Sebastien Pruvost
Summary: Electrothermal processes were investigated in pyroresistive composites of high-density polyethylene with carbon black and carbon fibers. The kinetic heating curves showed an exponential dependence with a heating rate constant for each composite. Equilibrium temperature was reached after a short heating time, and decreased with the presence of positive temperature coefficient of resistance (PTC) effect. The composites exhibited self-regulating capability and the equilibrium temperature depended on the applied voltage and electric power with different relationships. An application of using HDPE-CB composite as a heating element for resistance welding was demonstrated.
Article
Engineering, Manufacturing
Kexin Chen, Yuezhan Feng, Yongqian Shi, Hengrui Wang, Libi Fu, Miao Liu, Yuancai Lv, Fuqiang Yang, Bin Yu, Minghua Liu, Pingan Song
Summary: This research focuses on the development of thermoplastic polyurethane composites with outstanding flame retardancy and electromagnetic interference shielding effectiveness. A novel air-assisted thermocompression technology was used to fabricate sandwich-structured composites. The composites exhibited significant reduction in heat release rate and smoke release rate, as well as high electromagnetic interference shielding effectiveness.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2022)
Article
Engineering, Manufacturing
Xincheng Wang, Yaokai Tang, Shangru Cheng, Qiangmin Gao, Yingxin Yuan, Anqi Li, Shanshan Guan
Summary: In this study, a flexible strain sensor based on a novel reduced graphene oxide/polydimethylsiloxane (rGO/PDMS) conductive elastomeric composite with a 3D conductive network was developed using latex assembly technique for the first time. The exclusive volume effect of the latex particles allowed selective distribution of rGO in the interstitial spaces, resulting in the formation of a 3D conductive network with an ultralow amount of rGO (0.44 vol%), making the rGO/PDMS composites mechanically robust and flexible. Each PDMS latex particle acted like an elastic balloon, aiding the destruction and reconstruction of the conductive network under external stimulus, thus providing excellent sensitivity to the sensor. The strain sensors exhibited superior sensitivity (44.01), a wide strain range (300%), and good stability (2500 cycles), enabling effective detection of human finger movements, facial muscles, voice recognition, and physiological signals.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2022)
Article
Materials Science, Composites
Patcharapon Somdee, Manauwar Ali Ansari, Kalman Marossy
Summary: In this study, flexible and rigid polyurethane/copper composites were prepared via a simple solution casting process. The dispersion and chemical bonding of the filler were investigated, and the thermal properties and mechanical properties of the composites were analyzed. The results showed that the thermal conductivity of the composites was significantly improved compared to the pure polyurethane, and the mechanical properties were also enhanced. The study suggests that copper microparticles can serve as an active filler in both flexible and rigid polyurethane matrices.
POLYMER COMPOSITES
(2023)
Article
Nanoscience & Nanotechnology
Pei Xu, Bincheng Huang, Ruobing Tang, Zhenfeng Wang, Jiaying Tu, Yunsheng Ding
Summary: This study focuses on the functionalization and distribution of conductive fillers, as well as the interfacial compatibilization of polymer blends, in order to improve the electrical conductivity and electromagnetic interference shielding efficiency of composites. By modifying the carbon nanotubes (CNTs) with an ionic liquid copolymer and controlling the blending process, selective localization of CNTs at the interphase and the formation of effective conductive networks at the interface were achieved. This resulted in a significant increase in electrical conductivity and a maximum EMI shielding efficiency of 41 dB for the PLA/PCL/PIL/CNT composites.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Yadong Wu, Xiuyan Cheng, Shaoyun Chen, Bo Qu, Rui Wang, Dongxian Zhuo, Lixin Wu
Summary: A hybrid fiber mat (i-MBP-PCF) was prepared by depositing multiwalled carbon nanotube buckypaper (i-MBP) on the surface of functionalized CF fabric, showing significant improvement in the interlaminar and electrical properties of carbon fiber reinforced polymer composites. The hybrid fiber mat exhibited enhanced interlaminar shear strength, Mode-II interlaminar fracture toughness, and electrical conductivity compared to CF/EP composite.
MATERIALS & DESIGN
(2021)
Article
Materials Science, Composites
Hua Xiao, Zi Xin Huang, Ze Ping Zhang, Min Zhi Rong, Ming Qiu Zhang
Summary: A facile strategy for effectively constructing in-plane and through-plane thermal conduction paths in polyimide (PI) and its flexible copper clad laminates (FCCLs) was reported by incorporation of hexagonal boron nitride (h-BN) in a controlled manner. The specific sea-island architecture allowed the preparation of highly thermally conductive flexible PI film and its FCCLs at relatively lower total boron nitride loading. The results of the current work may open a new avenue for promoting the practical application of thermally conductive PI based FCCLs.
COMPOSITES SCIENCE AND TECHNOLOGY
(2022)
Article
Materials Science, Composites
Xianyuan Liu, Zilong Wang, Jinsong Sun, Zehua Zhao, Shuyi Zhan, Ying Guo, Heng Zhou, Wenbin Liu, Jun Wang, Tong Zhao
Summary: The study successfully synthesized Al2O3@graphite core-shell particles with excellent thermal conductivity and electrical insulation properties, and fabricated thermally stable phthalonitrile composites, which could potentially be used for high-temperature thermal management applications.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Article
Polymer Science
Zhifeng Wang, Jun Tong, Wei Li, Haichen Zhang, Manfeng Hu, Haichu Chen, Hui He
Summary: In this study, polypropylene/graphite intercalation compound (PP/GIC) composites were prepared at different temperatures through melt mixing, demonstrating improved dispersion and performance at higher temperatures, suggesting potential applications.
Article
Engineering, Manufacturing
Xinhua Wang, You Yuan, Yantai Zhang, Jun Qian, Peiyuan Zuo, Xiaoyun Liu, Qixin Zhuang
Summary: Polymer dielectric materials are widely used in pulsed power technology and high-energy weapon systems. This study presents a method to prepare functional corn-like hybrids consisting of BaTiO3 nanowires (BT) and BNNs nanosheets, which show high discharged energy density, charge and discharge efficiency, and wide temperature dielectric stability. The hybrids provide a promising dielectric nanocomposite candidate for high temperature applications.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2022)
Article
Materials Science, Composites
Shuhang Liu, Yiting Guo, Jianwei Li, Sichen Wu, Jie Xu, Emilia Pawlikowska, Jie Kong, Artur Maciej Rydosz, Mikolaj Szafran, Feng Gao
Summary: Ceramic/polymer dielectric functional composites, specifically the (Ba0.6Sr0.4)TiO3/PEEK (BST/PEEK) composites, were prepared with high frequency stability of the dielectric constant and low dielectric loss via cold-pressing sintering. The optimal properties of the BST/PEEK composites were achieved at a BST concentration of 40 vol% and sintered at 360°C for 1 hour, showing a permittivity of 23, a loss of 0.0065, F(x) <5%, and a dielectric tunability of 11.9%. The study provides insight for developing new composites with low loss and high frequency stability.
COMPOSITES SCIENCE AND TECHNOLOGY
(2022)
Article
Engineering, Multidisciplinary
Tobias Karlsson, Per Hallander, Fang Liu, Thirza Poot, Malin Akermo
Summary: In this study, Vertically Aligned Carbon Nanotube (VACNT) forests are embedded into two different glass fibre/ epoxy composite systems to investigate their sensing capabilities for strain and temperature. Through a comprehensive analysis on nano-, micro-, and mesoscale, it is found that the observed thermoresistive effect is attributed to fluctuation-assisted tunnelling, while the linear piezoresistive effect is due to the intrinsic piezoresistivity of individual carbon nanotubes. The VACNT forests exhibit high flexibility in placement within the structure and reproducibility of sensing sensitivity in both composite systems, providing a robust sensor for strain and temperature.
COMPOSITES PART B-ENGINEERING
(2023)
Article
Materials Science, Composites
Meijie Cui, Songkai Wu, Jiannan Li, Yi Zhao, Wei Zhai, Kun Dai, Chuntai Liu, Changyu Shen
Summary: This study proposes a novel wearable high-performance strain sensor that can display both electronic signals and optical images, showing great potential in personalized rehabilitation training monitoring.
COMPOSITES SCIENCE AND TECHNOLOGY
(2023)
Article
Mechanics
Xinyu Zhang, Miao Gao, Mingfu Qiu, Chuan Ning, Chaojun Gao, Guoqiang Zheng, Yanjun Zhao, Kun Dai, Chuntai Liu, Changyu Shen
Summary: Strain sensor is a crucial component of wearable electronic devices, and crack-based sensor with high sensitivity has attracted attention for its extensive application. However, fabricating crack-based sensors in a facile, efficient, and cost-effective manner remains a challenge. In this study, a facile and efficient method was proposed to fabricate stretchable microgroove-crack-based strain sensor with a highest sensitivity of 27818.5 and low detection limit of 0.01%. It can be pasted on human body to detect motion in air and underwater conditions, and recognize the vibration spectrum of different musical scores. This study offers a promising approach for future production of wearable electronic devices.
COMPOSITE STRUCTURES
(2023)
Article
Polymer Science
Kedar Nath Dhakal, Beate Krause, Ralf Lach, Andre Wutzler, Wolfgang Grellmann, Hai Hong Le, Amit Das, Sven Wiessner, Gert Heinrich, Rameshwar Adhikari
Summary: The properties of nanocomposites of poly(lactic acid) (PLA)/poly(butylene adipate-co-terephthalate) (PBAT) blends with multiwalled carbon nanotubes (MWCNTs) were investigated, showing improvements in electrical, mechanical, and thermal properties with increasing filler content.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Chemistry, Physical
Vikram G. Kamble, Johannes Mersch, Muhammad Tahir, Klaus Werner Stoeckelhuber, Amit Das, Sven Wiessner
Summary: The study presents a method for preparing adaptive fiber-elastomer composite structures, which can be used in smart applications such as soft robotics. By combining a functional fabric with liquid polybutadiene rubber using a low-temperature vulcanization process, the researchers successfully developed intelligent structures. These structures can achieve controlled deformation through Joule heating.
Article
Materials Science, Composites
Oliver Voigt, Beate Krause, Petra Poetschke, Michael T. Mueller, Sven Wiessner
Summary: The thermoelectric behavior of polypropylene (PP) based nanocomposites containing single walled carbon nanotubes (SWCNTs) and five kinds of ionic liquids (Ils) dependent on composite composition and electron beam irradiation (EB) was studied. It was found that it is possible to prepare n-type melt-mixed polymer composites from p-type commercial SWCNTs with relatively high Seebeck coefficients when adding four of the selected Ils. The highest Seebeck coefficients achieved in this study were +49.3 mu V/K (PP/2 wt.% SWCNT) for p-type composites and -27.6 mu V/K (PP/2 wt.% SWCNT/4 wt.% IL type AMIM Cl) for n-type composites.
JOURNAL OF COMPOSITES SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Subhradeep Mandal, Sakrit Hait, Frank Simon, Anik Ghosh, Ulrich Scheler, Injamamul Arief, Toshio Tada, Tung X. Hoang, Sven Wiessner, Gert Heinrich, Amit Das
Summary: Epoxidized natural rubber can be modified by grafting imidazolium ions, which gives it self-healing and reprocessing properties. The formation of dynamic hydrogen bonding and ionic aggregates leads to improved mechanical strength, self-healing efficiency, and reprocessability. Additionally, the material exhibits excellent transparency. Visualization and stability of the healing process were confirmed through microscopy and spectroscopy analyses.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Chemistry, Applied
Dipankar Mondal, Sakrit Hait, Soumyajit Ghorai, Sven Wiessner, Amit Das, Debapriya De, Dipankar Chattopadhyay
Summary: A new sustainable approach using a multifunctional devulcanizing agent was proposed for the development of value added devulcanized rubber, which can enhance its application in the tire industry and play a significant role in product quality, production economy, and market competition. By utilizing bis(3-triethoxysilylpropyl)tetrasulfide as the devulcanizing agent, ground tire rubber (GTR) can be mechanochemically devulcanized, allowing for the homogeneous dispersion of silica in the revulcanized rubber compound. The optimal devulcanization time of 40 minutes was determined through swelling experiments and Horikx theory, resulting in better-quality devulcanized rubber and improved mechanical and thermal performance of the revulcanized rubber. Scanning electron microscopy images further confirmed the homogeneous silica dispersion in the rubber matrix. This technology has shown potential for rubber reclamation, contributing to advancements in ecological sustainability.
JOURNAL OF VINYL & ADDITIVE TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Anik Kumar Ghosh, Swagato Sarkar, Takuya Tsuda, Soosang Chae, Andre Knapp, Mirko Nitschke, Amit Das, Sven Wiessner, Tobias A. F. Koenig, Andreas Fery
Summary: Metal-semiconductor nanostructures are widely used in photodetection, photocatalysis, and photovoltaics. In photodetection, the resistance typically decreases with the generation of charge carriers upon illumination, but an opposite response, an increase in resistance, is observed in interconnected metal-semiconductor gratings. This study presents a fabrication method using wrinkle structuring and oblique angle material deposition to create photoresistors with large-area periodic structures and cracks that serve as connections for two-point contact measurements. It is also found that an additional deposition of an amorphous titania layer further enhances the current reduction on photoexcitation.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Soumyajit Ghorai, Sakrit Hait, Dipankar Mondal, Sven Wiebner, Amit Das, Debapriya De
Summary: In this study, researchers have successfully recycled waste rubber using mechanochemical devulcanization technique and developed high-performance natural rubber-silica composites. The results show that the mechanical properties of the composites, including tensile strength, tear strength and elongation at break, gradually increase with the increasing content of devulcanized rubber, with the optimum level at 40%. Additionally, the developed composites exhibit superior thermal behavior and a uniform dispersion of the filler.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Polymer Science
Shubham C. Ambilkar, Bharat P. Kapgate, Amit Das, Subhradeep Mandal, Pradip K. Maji, Shiva Singh, Rajkumar Kasilingam, Rupesh S. Gedam, Chayan Das
Summary: Silica and other metal oxides are potential substitutes for carbon black in reinforcing elastomeric materials, offering various additional properties. In this study, the efficacy of in-situ zirconia in enhancing the properties of a rubber blend consisting of natural rubber and nitrile rubber was investigated. The controlled incorporation of in-situ zirconia resulted in improved dispersion, rubber-filler interaction, and crosslinking densities, leading to enhanced thermal stability, flame retardancy, and chemical resistance. The dielectric properties were also improved, especially with surface modification of in-situ zirconia. This study provides valuable insights for the development of high performance elastomeric composites.
EUROPEAN POLYMER JOURNAL
(2023)
Article
Chemistry, Physical
Kamal Kumar Meena, Injamamul Arief, Anik Kumar Ghosh, Hans Liebscher, Sakrit Hait, Juergen Nagel, Gert Heinrich, Andreas Fery, Amit Das
Summary: An affordable and promising device called TENG has attracted attention for harvesting energy from mechanical forces. However, its output power is often insufficient for long-term use. In this study, a new fabrication method using 3D printing and transfer printing was proposed to create a hybrid BTO/PDMS film with adjustable piezoceramic layer thickness. The resulting hybrid sensor showed higher charge separation and better impedance matching, leading to improved power density and reproducibility. It also demonstrated high precision in tire wear monitoring and force/pressure sensing.
Article
Polymer Science
Arpan Datta Sarma, Erathimmanna Bhoje Gowd, Amit Das, Gert Heinrich
Summary: This report presents an insightful investigation of the cold crystallization behavior of sulfur-crosslinked polybutadiene elastomers. The influence of crosslink density on the cold crystallization activities of sulfur-crosslinked polybutadiene rubber (BR) is investigated using differential scanning calorimetry, dynamic mechanical analysis, and X-ray techniques. A significant increase in storage modulus (E') is observed at a temperature just above the glass transition temperature (Tg). This behavior was found to be highly dependent on the crosslink density of the rubber. The dynamic mechanical behavior of the sulfur crosslinked BR is supported by further studies using differential scanning calorimetry and low-temperature X-ray diffraction. This study could contribute to a better understanding of the behavior of BR-containing tire tread rubbers at lower temperatures.
EXPRESS POLYMER LETTERS
(2023)
Article
Polymer Science
Kriengsak Damampai, Skulrat Pichaiyut, Amit Das, Charoen Nakason
Summary: In this work, the crosslinking reaction of epoxidized natural rubber (ENR) by ferric ion and the reinforcement effect of carbon nanotubes (CNTs) were studied. The results showed that both the interaction between ferric ion and epoxy group and the internal polymerization contributed to the efficient curing of ENR. The addition of CNTs further improved the mechanical properties and electrical conductivity of the vulcanized ENR-FeCl3 compound.
EXPRESS POLYMER LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Injamamul Arief, Philipp Zimmermann, Sakrit Hait, Hyeyoung Park, Anik Kumar Ghosh, Andreas Janke, Santanu Chattopadhyay, Juergen Nagel, Gert Heinrich, Sven Wiessner, Amit Das
Summary: Self-powered tactile module-based electronic skins incorporating triboelectric nanogenerator (TENG) are a valuable alternative for sustainable energy harvesting and smart monitoring devices. These modules demonstrate ultra-stretchability and detection sensitivity to mimic human skin. The experiment results show impressive power density, voltage, and current output, as well as high durability and stability. Furthermore, a tactile sensor based on the triboelectric nanogenerator was successfully constructed, demonstrating remarkable motion and force sensitivity.
MATERIALS HORIZONS
(2022)
Article
Materials Science, Multidisciplinary
Shubham C. Ambilkar, Gopal Lal Dhakar, Bharat P. Kapgate, Amit Das, Sakrit Hait, R. S. Gedam, Rajkumar Kasilingam, Chayan Das
Summary: This study successfully produced chloroprene rubber composites with well dispersed zirconia to enhance their properties. The in situ incorporated zirconia showed superior reinforcement effect and improved thermal stability. The composites also demonstrated resistance to oil, aging, and abrasion, making them suitable for practical applications.
MATERIALS ADVANCES
(2022)
Article
Materials Science, Composites
Xi Liu, Wei Shen, Jincun Fu, Toshiaki Natsuki, Lvtao Zhu
Summary: The 3-D carbon fiber reinforced resin matrix composite tubes were designed and formed using a novel braiding-winding-pultrusion processing technique. The effects of temperature environments on the mechanical responses and damage behaviors of the composite tubes were investigated, and it was found that the structural design of the tubes directly affects their axial bearing capacity.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Weihao Yuan, Ziyang Zhang, Yueshan Li, Yudong Huang, Zhengxiang Zhong, Zhen Hu
Summary: In this study, the simultaneous self-healing of matrix and interface damage of fiber-reinforced composites was achieved by integrating extrinsic self-healing based on microcapsules and internal self-healing based on coordination interaction. The high exothermic action of epoxy resin and mercaptan repair agent in the self-healing process was observed using infrared thermal imaging technology for in-situ and real-time damage detection.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Israr Ud Din, Adnan Ahmed, Farah Tarek, Wesley Cantwell, Kamran A. Khan
Summary: In this study, a finite element model driven by XCT was developed to simulate the folding characteristics of origami structures, and the results showed good agreement with experimental data. The study demonstrates the potential application of XCT-driven FE modeling in simulating foldable structures.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Yishan Yang, Yukang Lai, Song Zhao, Hongguang Chen, Renshu Li, Yongjiang Wang
Summary: This study reports the synthesis of a new transparent fiber reinforced polymer material (tGFRP) with high transparency and superior mechanical properties by controlling the refractive index of epoxy resin and using a novel processing technique.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Yuhang Liu, Kai Huang, Junfeng Ding, Shangyang Yu, Zhixing Li, Li Zhang, Licheng Guo
Summary: This study proposes a method for accurately predicting the penetration failure load of composites using acoustic emission (AE) data. The method includes a cyclic loading test schedule and an extrapolation method based on uncertainty. The results show that this method can accurately predict the failure load when LR equals 1.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Jinxia Cai, Bing Xie, Yunliang Jiang, Jinshan Lu, Zeyu Li, Pu Mao, Mohsin Ali Marwat, Haibo Zhang
Summary: This research aims to develop ternary nanocomposites composed of polycarbonate, Al2O3 nanoparticles, and BaTiO3 nanowires for capacitive energy-storage. By optimizing the capacitor materials, the discharge energy density and efficiency have been improved, and the superiority of the ternary polymer nanocomposites for dielectric energy-storage has been validated through finite element analysis.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Hon Lam Cheung, Mohsen Mirkhalaf
Summary: The aim of this study is to develop physics-based models and establish a structure-property relationship for short fiber composites. High-fidelity full-field simulations are computationally expensive and time-consuming, so the use of artificial neural networks and transfer learning technique is proposed to solve this issue and improve modeling accuracy and efficiency.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Yue Jiang, Juyoung Leem, Ashley M. Robinson, Shuai Wu, Andy H. Huynh, Dongwon Ka, Ruike Renee Zhao, Yan Xia, Xiaolin Zheng
Summary: The effect of interface engineering on the combustion and mechanical performance of high-loading B/HTPB composites was investigated in this study. It was found that both covalently bonded and nonpolar/nonpolar interfaces effectively reduced the aggregation of B particles, promoting combustion efficiency and burning rate, and enhancing the mechanical properties of the composites.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
R. Mohsenzadeh, B. H. Soudmand, A. H. Najafi, M. Fattahi, D. P. Uyen
Summary: This study examines the morphological features of nano-zeolite nanoparticles incorporated into ultra-high molecular weight polyethylene nanocomposites. The dispersion of nanoparticles within the polymer matrix was improved following nano-zeolite incorporation. The size and distribution of nanoparticles were determined through tailored histograms, and the effective elastic moduli of nanocomposites were calculated, considering interfacial effects.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Chunming Ji, Jiqiang Hu, Rene Alderliesten, Jinchuan Yang, Zhengong Zhou, Yuguo Sun, Bing Wang
Summary: This paper investigates the effect of impact damage on the fatigue behavior of CF/PEEK-titanium hybrid laminates. A fatigue life model is proposed to predict the S-N curves of the laminates based on energy dissipation approach. The energy dissipation behavior of the laminates under different experimental conditions is analyzed through post-impact fatigue tests, and the correlation between impact damage and fatigue dissipation energy is determined. The validity of the proposed model is verified through fatigue tests under different stress ratios and impact energy levels.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Shaokai Hu, Ping Han, Chao Meng, Ying Yu, Shaolong Han, Haoyu Wang, Gang Wei, Zheng Gu
Summary: This study decorates MXene on the surface of carbon fiber using different bonding interactions to improve the interface adhesion and mechanical properties of carbon fiber-reinforced polymers composites (CFRPs). The results demonstrate that CFRPs reinforced by CF-c-MXene show the optimal properties, with significant improvements in impact strength and interfacial shear strength compared to the unsized carbon fiber-reinforced composites.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Steven U. Mamolo, Henry A. Sodano
Summary: This study demonstrates that chlorination of ANFs and oxygen plasma treatment of carbon fibers enables the formation of a chlorinated ANF (Cl-ANF) interphase, resulting in a 79.8% increase in interfacial shear strength and a 33.7% increase in short beam strength in CFRP composites. This method provides a rapid and reliable process to improve the mechanical properties of CFRPs without degrading the tensile strength of the carbon fibers.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Yuyang Zhang, Huimin Li, Xin Liu, Yanhong Chen, Chengwei Qin, Daining Fang
Summary: Establishing a prediction model for the mechanical properties of three-dimensional tubular braided composites at different temperatures is of great significance. This study adopted a multi-scale modeling framework based on micro-computed tomography to consider the characteristics of the real yarn cross section and establish a realistic trans-scale finite element model for the composites. The predicted mechanical properties were found to be significantly affected by temperature.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Shengtao Dai, Fei Yan, Jiaming Guo, Huiru Hu, Yu Liu, Liu Liu, Yuhui Ao
Summary: This study successfully synthesized a hyperbranched waterborne polyurethane sizing agent and cellulose nanocrystal modified zinc oxide nanohybrids to improve the interface and properties of carbon fiber reinforced composites. The modified composites exhibited remarkable enhancements in mechanical properties and exceptional UV resistance.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Libera Vitiello, Martina Salzano de Luna, Veronica Ambrogi, Giovanni Filippone
Summary: The identification of the percolation threshold in short fiber composites is crucial for assessing material properties and biodegradation speed. In this study, an original rheological approach was used to estimate the percolation threshold of hemp and kenaf-based composites, which showed good agreement with conventional dielectric spectroscopy analyses.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
