Article
Materials Science, Composites
Hyeseong Lee, Mi Na Kim, Han Gyeol Jang, Ji-un Jang, Jaewoo Kim, Seong Yun Kim
Summary: The aggregation of nano-carbon fillers in composites due to van der Waals forces hinders their excellent conductive properties. To overcome this, a dispersion strategy using phenyl glycidyl ether (PGE) as a non-covalent functionalization agent was proposed. The composites filled with PGE-treated nano-carbon fillers showed significantly improved electrical and thermal conductivities.
COMPOSITES COMMUNICATIONS
(2022)
Article
Engineering, Multidisciplinary
Ji-un Jang, Seung Hwan Lee, Jaewoo Kim, Seong Yun Kim, Seong Hun Kim
Summary: Studies have shown that the fraction of the secondary filler inducing the maximum synergistic effect decreases with increasing total filler content, leading to an anti-synergistic effect at high fractions. Effective phonon transfer and high thermal conductivity can be achieved at the optimum fraction due to improved filler network formation. The Kim-Jang-Lee model was proposed for both the synergistic and anti-synergistic effects based on the ratio of fillers in the composites.
COMPOSITES PART B-ENGINEERING
(2021)
Article
Engineering, Manufacturing
Bo Zhang, Shaohua Wu, Chuncheng Li, Yaonan Xiao, Jiajian Liu
Summary: A unique selective exfoliation method was developed to prepare micro/nano-PBO composite paper, which greatly improved its mechanical properties while preserving its ultrahigh heat resistance. The structurally optimized composite paper exhibited significantly enhanced mechanical strength, modulus, and electrical breakdown strength, making it a promising electrical insulating material for extreme environments.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2022)
Article
Engineering, Manufacturing
Yuge Ouyang, Liuyang Bai, Huafeng Tian, Xiaofei Li, Fangli Yuan
Summary: This paper reviews the current progress in the development of Al2O3 reinforced polymer composites, including preparation methods, heat conduction mechanisms, factors affecting thermal conductivity, methods for improving thermal conductivity, and emerging applications. It also identifies several outstanding issues that need to be addressed in order to achieve higher thermal conductivity.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2022)
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
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
Materials Science, Multidisciplinary
V. R. Chandegara, Payal Joshi, Sangita Chavda, H. M. Oza, Mayur Parmar, Davit Dhruv, P. S. Solanki, D. D. Pandya, A. D. Joshi, N. A. Shah, R. K. Trivedi
Summary: In this research, the structural, microstructural, optical and electrical properties of CuO/ZnO nanoparticle/nanorod composites in PVA matrix were investigated using a two-step sol-gel technique. The synthesized samples were characterized using X-ray diffraction, Field Emission Scanning Electron Microscopy, Energy Dispersive X-ray analysis, UV-visible spectroscopy, and an LCR meter. The results confirmed the crystalline properties of CuO and ZnO metal oxides in the PVA matrix and analyzed the optical and electrical behaviors of the composites.
Article
Materials Science, Composites
Xianyuan Liu, Heng Zhou, Zilong Wang, Xu Han, Zehua Zhao, Ying Guo, Wenbin Liu, Jun Wang, Tong Zhao
Summary: Constructing 3D thermal transport frameworks and aligned structures are effective strategies to improve the thermal conductivity of polymer composites. By assembling complex microspheres and preparing aligned fillers, the thermal conductivity of the composites can be significantly increased.
COMPOSITES SCIENCE AND TECHNOLOGY
(2022)
Article
Materials Science, Composites
Z. Y. Dong, X. Y. Liu, D. Wang, W. G. Wang, B. L. Xiao, Z. Y. Ma
Summary: A 20 nm SiC nanocoating was prepared on crushed diamond particles using sol-gel and in situ reaction methods. The 50 vol% SiC-coated diamond particles reinforced 6061Al composites were fabricated by vacuum hot pressing. The composite showed improved interfacial thermal conductance due to the presence of SiC at the diamond-Al interface, resulting in a high thermal conductivity of 485 W/mK.
COMPOSITES COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Lin Pan, Wenbo Gao, Ruitian Bo, Yanpeng Li, Chunfeng Wang, Yongliang Wang, Zhidong Han
Summary: In order to meet the diversified requirements for polymer-based composites in modern electronic devices and electrical systems, the simultaneous enhancement of thermal-electrical-mechanical properties is a great challenge. The gradient structured composites, designed by adjusting the distribution of temperature, electric and stress fields in polyethylene (PE) based composites with different Al2O3 contents, demonstrated superior through-plane thermal conductivity, high breakdown strength, and good tensile strength. Finite element simulation provided evidence for the action mechanism on gradient structure regulating temperature and electric field. The strategy of constructing gradient structure provides a feasible route to meet the comprehensive performance requirements of PE based composites in massive manufacture scenario for practical insulation applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Paper & Wood
Donatella Duraccio, Rossella Arrigo, Valentina Strongone, Pier Paolo Capra, Giulio Malucelli
Summary: The research focused on preparing UHMWPE/CNC composites and revealed that CNC can improve the mechanical properties and crystallinity of the composites. Additionally, different preparation methods play a key role in determining the performance of the composites.
Article
Polymer Science
SoonKook Hong, Vistasp M. Karbhari
Summary: This paper investigates the residual mechanical properties and damage states of ambient cured wet layup carbon fiber reinforced epoxy composites exposed to elevated temperature regimes. The results show that high temperature conditions lead to the deterioration of resin characteristics and the bond between fibers and resin. This is a weakness in layered composites formed from unidirectional fabric architectures. Changes in failure modes are correlated through microscopy to damage progression at the fiber-matrix interface and resin levels. Differential scanning calorimetry is used to determine transitions in glass transition temperature, which indicate changes in damage mechanisms.
Review
Materials Science, Multidisciplinary
Ahmed Elmasry, Wiyao Azoti, Sherif A. El-Safty, Ahmed Elmarakbi
Summary: This article discusses the importance of modeling and simulation in the materials industry, the application of multiscale techniques in studying composite materials, and the criteria for selecting appropriate models.
PROGRESS IN MATERIALS SCIENCE
(2023)
Article
Engineering, Multidisciplinary
Shanshan Ma, Hejun Li, Jie Fei, Chang Li
Summary: Researchers constructed a flexible-rigid scalable structure using aramid nanofiber (ANF), cellulose nanofiber (CNF), and ZIF-8 to improve the interfacial properties of composites. This structure enhanced the flexural strength and elastic modulus of the composites, leading to the fabrication of advanced materials on a large scale.
COMPOSITES PART B-ENGINEERING
(2023)
Article
Materials Science, Multidisciplinary
Winifred Obande, Weronika Gruszka, Jennifer A. Garden, Christian Wurzer, Conchur M. O. Bradaigh, Dipa Ray
Summary: This study demonstrates the use of reactive hybridisation to enhance solvent resistance and thermomechanical properties of liquid acrylic resin-based composites by incorporating poly(phenylene ether) (PPE). The addition of reactive PPE in the acrylic resin improves solvent resistance and glass transition temperature, providing a simple yet effective strategy for composite material enhancement.
MATERIALS & DESIGN
(2021)
