Article
Chemistry, Multidisciplinary
Hao Zhang, Jinfeng Tian, Liwei Yan, Shengtai Zhou, Mei Liang, Huawei Zou
Summary: The ablative properties of epoxy-modified vinyl silicone rubber (EMVSR) composites containing hexaphenoxycyclotriphosphonitrile (HPCTP) were investigated. The addition of HPCTP enhanced the strength of the ablation char layer and improved thermal insulation properties. The char layer was strengthened by reducing graphitic carbon content, forming phosphate-like crystals, and increasing SiC content. The optimum properties were achieved at 15 phr and 25 phr HPCTP, respectively, making HPCTP-modified EMVSR composites suitable for thermal protection applications, particularly in aerospace and aeronautics.
Article
Materials Science, Composites
Yongqiang Guo, Hua Qiu, Kunpeng Ruan, Shuangshuang Wang, Yali Zhang, Junwei Gu
Summary: This work focuses on the development of CF@Fe2O3/(BN/SR) composites with excellent thermal conductivity, electromagnetic interference (EMI) shielding performance, and electrical insulation properties. The sandwich structure of CF@Fe2O3/(BN/SR) composites contributes to effective EMI shielding by absorption-reflection-reabsorption of electromagnetic waves, while BN/SR and CF@Fe2O3 layers enhance thermal conductivity and electrical insulation, respectively. The composites show higher performance in terms of thermal conductivity, EMI shielding effectiveness, volume resistance, and breakdown strength compared to conventional CF/(BN/SR) composites. The CF@Fe2O3/(BN/SR) composites also exhibit better cooling effect than commercial silicon grease in computer testing platforms, indicating promising applications in electronics.
COMPOSITES SCIENCE AND TECHNOLOGY
(2022)
Article
Polymer Science
Hao Zhang, Liwei Yan, Yuan Wang, Shengtai Zhou, Mei Liang, Huawei Zou, Yang Chen
Summary: The ablative properties of epoxy modified silicone rubber composites filled with zinc borate (ZB) and aluminum hypophosphite (AHP) were improved by forming a dense char layer. The optimal ablative performance is achieved when the concentration of ZB and AHP is 10 and 5 phr, respectively. The structure and composition of the char layer were analyzed using various techniques.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Materials Science, Composites
Yang Wang, Shubin Chen, Yanchao Cai, Tengfei Lin, Min Gao, Chunlin Zhao, Xiao Wu, Cong Lin, Rongyang Zhai, Jie Liu
Summary: In this study, carbon nanotubes and conductive sponges were used to fabricate silicone rubber composites with improved thermal and electrical conductivity. The morphology, thermostability, electroconductibility, and mechanical properties of the composites were studied.
POLYMER COMPOSITES
(2022)
Article
Materials Science, Multidisciplinary
Xiaoyan Liu, Jie Yang, Jianyue Wang, Yin Zhang, Jian Wu, Fan Yang
Summary: The MXene/silicone rubber composites modified with polysilazane exhibit improved thermal stability due to the chemical interaction between polysilazane modified MXene and silicone rubber. The composites show higher initial decomposition temperature and better thermal stability compared to pure silicone rubber, with the reorganization of the main chains of the silicone rubber during thermal degradation.
Article
Engineering, Electrical & Electronic
Keijiro Yoshimura, Kazunori Nakano, Takeshi Nishiwaki, Yuki Iwama, Masanobu Murata
Summary: This study developed strain sensor materials with electrical resistivities changing with strain by producing Ketjenblack/silicone-rubber composites with gradually changing pore sizes. The results showed that the resistivities of the graded porous composites decreased more significantly at high compression rates, making them promising strain sensor materials. The changes in resistivity were attributed to a gradual increase in size of the area with low resistivity, indicating the potential for use under high compression rates.
SENSORS AND ACTUATORS A-PHYSICAL
(2021)
Article
Polymer Science
Bin Huang, Yan Yu, Yan Zhao, Yunfeng Zhao, Lina Dai, Zhijie Zhang, Hua-Feng Fei
Summary: In this study, we controlled the dielectric properties of silicone rubber composites by changing the type and content of oxide fillers. We successfully obtained silicone-based dielectric elastomers with a high dielectric constant, low modulus, and high elongation. These materials are expected to be applied in capacitive sensors, actuators, generators, and beyond due to their excellent comprehensive features.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Xiaoyu Zhang, Juan Yi, Yanan Yin, Yiheng Song, Chuanxi Xiong
Summary: By coating dopamine on hexagon boron nitride, composites with higher thermal conductivity and lower volume resistance were fabricated. When the filler content was 30 wt%, the thermal conductivity reached 0.95 W m(-1) K-1, and the volume resistivity was 2.5 x 10(11) Omega.cm, meeting the requirements of electronic materials.
DIAMOND AND RELATED MATERIALS
(2021)
Article
Engineering, Manufacturing
Jinbao Song, Kailun Zhang, Zihao Guo, Tianqi Liang, Chao Chen, Jie Liu, Dean Shi
Summary: The anisotropic effects of h-BN orientation on the thermal conductivity and interfacial thermal resistance of SiR-based TIMs were investigated. The composites with highly oriented h-BN prepared by the TR&HP process exhibited better heat dissipation, tensile properties, and lower hardness.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2023)
Article
Engineering, Chemical
Hao Zhang, Liwei Yan, Shengtai Zhou, Huawei Zou, Yang Chen, Mei Liang, Xiancheng Ren
Summary: Flexible ablative materials are crucial for thermal protection systems in hypersonic flight missions. This study utilized epoxy resin modified liquid silicone rubber as the elastomeric matrix and evaluated the ablation resistance and thermal insulation properties of different fibers. Inorganic fibers showed higher thermal stability and could form a molten silica film for enhanced thermal protection.
POLYMER ENGINEERING AND SCIENCE
(2021)
Article
Polymer Science
Dong Zhao, Lingcheng Kong, Jiaxin Wang, Guodong Jiang, Jun Zhang, Yucai Shen, Tingwei Wang
Summary: The study prepared ceramifiable silicone rubber composites with excellent self-supporting properties and ceramifiable properties by incorporating silicate glass frits and sodium tripolyphosphate. The addition of STPP improved the shape stability, flexural strength, and bulk density of the composites at high temperatures, with the crystalline phase content enhanced by about 25%.
Article
Materials Science, Multidisciplinary
Huaidong Liu, Dayou Liu, Penghu Li, Huan Niu, Haiyun Jin
Summary: The effect of superhydrophobic surface on the surface electrical properties of silicone rubber composite insulators was studied. It was found that changing the surface structure of the composites altered the distribution of surface traps. The superhydrophobic sample had higher energy level and density of deep traps compared to the common sample, which effectively inhibited electron avalanche and increased the surface flashover voltage.
Article
Engineering, Chemical
El Hadi Belhiteche, Sebastien Rondot, Mustapha Moudoud, Philippe Dony, Omar Jbara
Summary: A contactless method combining X-ray bremsstrahlung energy shift and low voltage electrical technique was used to measure surface potential and surface resistivity of thermally and corona aged silicone rubber. The study found that combined aging deteriorates electrical properties more than thermal aging alone. Analysis including FTIR spectra and chemical mechanism of aging revealed the surface degradation and loss of hydrophobicity in the polymer.
POLYMER ENGINEERING AND SCIENCE
(2021)
Article
Polymer Science
Hao Zhang, Shengtai Zhou, Mei Liang, Huawei Zou
Summary: This study investigates the transient thermal response and ablation behavior of liquid silicone rubber composites containing fluxing/ceramic forming fillers under different heat flows using an oxyacetylene flame. The results show that the introduction of zinc borate (ZB) and aluminum oxide (Al2O3) effectively reduces temperature, improves thermal insulation properties, and lowers pyrolysis rates.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Materials Science, Composites
Jianming Yang, Yujian Chen, Bo Wang, Yingguo Zhou, Xianzhi Chai, Xin Yan, Wei Han, Chen Liu, Peng Lin, Youyi Xia, Hexin Zhang, Xia Liao
Summary: In this study, electromagnetic interference (EMI) shielding composites with gradient filler distributions were fabricated using an induced magnetic field. The composite exhibited outstanding conductivity and shielding effectiveness, with high absorption rate at specific frequency. Moreover, the composite showed excellent stability and applicability.
COMPOSITES SCIENCE AND TECHNOLOGY
(2022)
Article
Engineering, Manufacturing
Wenwu Zhang, Helezi Zhou, Bin Huang, Huamin Zhou, Xiongqi Peng
Summary: This paper investigates the tool-ply friction behavior of jute/PLA biocomposites in thermoforming. A pull-through friction testing device was developed to characterize the tool-ply friction behavior of jute/PLA prepreg at elevated temperature. The effects of alkali treatment, fiber orientation, normal force, and slipping velocity were studied, and a quantitative definition of tool-ply friction behavior was achieved. The results indicate a strong relationship between tool-ply friction behavior and woven and fiber structures, indicating hydrodynamic lubrication.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Stephen Clay, Wesley Ault, Alex Faupel, Caglar Oskay, Philip Knoth, Noam N. Y. Shemesh, Rami Haj-Ali, Uri Breiman, Ido Meshi, Ofir Shor
Summary: This paper presents an experimental investigation on the compression failure mechanisms of laminated carbon fiber reinforced composites under non-standard quasi-static loading. The results demonstrate the presence of interior kink bands, surface ply splitting, and delaminations, with each failure mechanism associated with different stress levels.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Bowen Zeng, Jinlong Yang, Zhi Ni, Yucheng Fan, Ziyan Hang, Chuang Feng
Summary: This study successfully improved the pyroelectric properties of PVDF films by preparing functionally graded graphene nanoplatelet (FG-GNP) reinforced PVDF composite films. The increase in the number of layers and the concentration of GNP near the surface of the composite film were found to enhance the pyroelectric properties and temperature stability.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Shenghe Zhang, Fukai Chu, Weizhao Hu, Bibo Wang, Richard K. K. Yuen, Yuan Hu
Summary: This study improves the flame retardancy and mechanical properties of PBAT by synthesizing a phosphorus-containing intercalator and mixing it into the PBAT matrix.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Tharan Gordon, Michael R. Wisnom, Byung Chul Kim
Summary: Thickness tapering is a common strategy for efficient and lightweight composite structures, but it can introduce delamination sites. This study investigated the use of ply scarfing method to improve the compressive failure stress of tapered laminates made from thick unidirectional non-crimp fabrics. The results showed that ply scarfing suppressed delamination and increased the failure stress by 60%.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Xin Wang, Yiting Qu, Junlei Bai, Fujun Xu, Bin Ding, Xiaohua Zhang
Summary: A solution-based strategy is proposed to achieve a strong bond between fibers and matrix in powder materials, resulting in improved mechanical properties, thermal conductivity, and fracture strain of the composites. The method also offers advantages such as enhanced powder flowability and thermal stability.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Xing Zhou, Guosheng Wang, Dexiang Li, Qi Wang, Keming Zhu, Yaya Hao, Yueyang Xu, Neng Li
Summary: This study successfully synthesized polyurethane elastomer by using degraded products from waste PET, and fabricated composites with carbon nanotubes for strain sensors. The composites showed good mechanical and durability performance, indicating a potential method for recycling waste PET into valuable and functional materials.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Fei Peng, Tingting Shan, Rongrui Chen, Jiulong Shi, Di Liu, Guoqiang Zheng, Chaojun Gao, Kun Dai, Chuntai Liu, Changyu Shen
Summary: Janus polymer films with distinct surface performance and potential applications were successfully prepared by vacuum-assisted hot-compressing method and spray coating. These films exhibit decent actuation performance and rapid selfpowered sensing property, and can be used for real-time acetone monitoring system.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Biao Cheng, Huafeng Quan, Yuefeng Zhang, Dong Huang, Tongqi Li, Chong Ye, Xingming Zhou, Zhen Fan, Yafang Zhang, Ting Ouyang, Fei Han, Hongbo Liu, Jinshui Liu
Summary: In this study, a binary graphite network was constructed to improve the thermal conductivity and control the formation of micrometer-scale open pores in phase change composites. The developed composites showed a high thermal conductivity and phase change enthalpy, making them promising for thermal control in space optical-mechanical systems and other critical aerospace components.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Shihao Zuo, Fei Cheng, Guangming Yang, Jiangzhou Li, Yongjun Deng, Guangjun Gou, Xuejun Cui, Yunsen Hu, Xiaozhi Hu
Summary: Micro-arc oxidation (MAO) treatment was used to modify aluminum (Al) alloys in order to improve bond strength with carbon fiber reinforced polymer (CFRP). The treatment successfully created a porous surface with better hardness, roughness, and wetting, and introduced resin pre-coating (RPC) and carbon nanotube (CNT) fiber bridging to improve the bonding interface. The combined treatments significantly increased the bond strength by up to 156.1%, indicating the feasibility of MAO as an alternative method for manufacturing high-performance Al-CFRP composites in industrial production.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
James Kratz, Christophe Paris, Karolina Gaska, Vincent Maes, Ivana Partridge, Philippe Olivier
Summary: Faster heating rates and higher process temperatures can reduce the total process time while achieving the same degree-of-cure. Thermal analysis shows that thermoplastic interleaf particles melt at the recommended curing temperature. A short dwell at a lower temperature can prevent the mixing of thermoplastic particles and thermoset pre-polymer.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Thomas Maierhofer, Evripides G. Loukaides, Craig Carr, Chiara Bisagni, Richard Butler
Summary: Joining thermoset composites via resistance welding provides an efficient method for aerospace structures with benefits such as high-volume manufacturing and simplified surface preparation. The influence of welding parameters on joint performance is assessed using Mode I fracture toughness testing. A Bayesian approach is employed to select high-performance parameters.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Jiangan You, Ling Cai, Ronghua Yu, Haiping Xing, Jian Xue, Ying Li, Zhiwei Jiang, Dongmei Cui, Tao Tang
Summary: In response to the global environmental pollution crisis caused by waste plastics, recyclable design is an effective solution. A CPVC/PUA nanocomposite foam was developed using the plasticizing-foaming-reinforcing strategy, combined with catalytic carbonization. The foam exhibited high expansion ratio, robustness, solvent resistance, flame-triggered shape memory effect, and ablation resistance. The foam could be directly upcycled into functional carbon foam with attractive electromagnetic interference shielding performance.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Siyao Chen, Zhiyu Chen, Yangling Ou, Junwei Lyu, Junning Li, Xiangyang Liu, Yang Liu
Summary: In this study, we demonstrated the significant effect of composite interface on temperature increase in electrical heaters. By selectively fluorinating the outer walls of carbon nanotubes and compositing them with cellulose nanofibers, improved interfacial phonon diffusion was achieved, leading to a higher temperature increase rate.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Yanjun He, Agnieszka Suliga, Alex Brinkmeyer, Mark Schenk, Ian Hamerton
Summary: A new thermoset resin system based on a polybenzoxazine blend showed good performance under high ATOX irradiation. It reduced erosion yield by forming a silicon-rich surface layer and improved the mechanical properties of CFRP laminates.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)