Article
Materials Science, Composites
Minghui Wu, Qian Ren, Peng Gao, Wenyu Ma, Bin Shen, Long Wang, Wenge Zheng, Ping Cui, Xiaosu Yi
Summary: The incorporation of cell structure within conductive polymer composites (CPCs) significantly enhances electrical properties. An innovative approach involving the enlargement of cell size is proposed to improve electrical conductivity (EC) and electromagnetic interference shielding effectiveness (EMI SE). By modifying the nitrogen (N2) content, polypropylene/carbon nanostructure (PP/CNS) nanocomposite foams with controlled cell sizes were successfully produced.
COMPOSITES COMMUNICATIONS
(2023)
Article
Polymer Science
H. Lecocq, G. Sudre, P. Alcouffe, O. Lhost, P. Cassagnau, A. Serghei
Summary: This study investigates the electromagnetic interference shielding properties of polypropylene-based composite materials filled with different metallic fillers. By utilizing guided electrical percolation, the shielding effectiveness of the composites is substantially enhanced, as observed through various experimental techniques and analyses.
Article
Materials Science, Composites
Jinwei Song, Kangjun Xu, Jie He, Huijian Ye, Lixin Xu
Summary: In this study, a lightweight carbonized melamine foam composite with a unique 3D pore structure was prepared by synergistic modification with graphene and multi-walled carbon nanotubes. It showed excellent performance in electromagnetic wave shielding.
POLYMER COMPOSITES
(2023)
Article
Materials Science, Composites
Iqra A. Rashid, Asra Tariq, H. M. Fayzan Shakir, Ayesha Afzal, Fahad Ali, Muhammad Abuzar, Toseeq Haider
Summary: The study synthesized conductive epoxy/PAni blends with varying concentrations, demonstrating improved electrical conductivity and microwave absorption properties with increased aspect ratio of PAni in the epoxy. The composites showed low porosity, excellent EMI shielding performance, and potential applications in conductive coatings and electronic devices.
JOURNAL OF REINFORCED PLASTICS AND COMPOSITES
(2022)
Article
Biochemistry & Molecular Biology
Jihyun Park, Lee Ku Kwac, Hong Gun Kim, Kil-Young Park, Ki Woo Koo, Dong-Hwa Ryu, Hye Kyoung Shin
Summary: Lyocell fabric, after carbonization, exhibited enhanced electrical conductivity and electromagnetic interference (EMI) shielding effectiveness (SE), making it a promising eco-friendly substitute for EMI shielding materials.
Article
Engineering, Environmental
Zuomin Lei, Jianhong Wei, Zhiqiang Lin, Tao Zhao, Yougen Hu, Pengli Zhu, Rong Sun
Summary: With the development of electronic products towards flexibility, miniaturization and high frequency, the demand for conductive polymer composites (CPCs) with ultra-low thickness, outstanding electromagnetic interference (EMI) shielding effectiveness (SE) and excellent mechanical properties is growing. In this study, a double-structured silver fractal dendrite/polyvinylidene fluoride (AgFD/PVDF) composite film was successfully fabricated. The film exhibited high electrical conductivity and remarkable EMI shielding performance, as well as good mechanical strength, indicating its great potential for practical applications in high-efficient EMI protection.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Multidisciplinary
Ze Zong, Fang Ren, Zhengzheng Guo, Zhenxia Lu, Yanling Jin, Yuchen Zhao, Penggang Ren
Summary: This study successfully prepared a novel absorption-based electromagnetic interference shielding composite with excellent electrical conductivity and EMI shielding performance. The composite shows great potential for practical EMI shielding applications in the fields of telecommunication and aerospace.
COMPOSITES PART B-ENGINEERING
(2021)
Article
Materials Science, Composites
Tian-Ning Yue, Ya-Nan Gao, Ye Wang, Yu-Dong Shi, Jia-bin Shen, Hong Wu, Ming Wang
Summary: This study investigates the effect of processing temperature on the distribution of multiwall carbon nanotubes (MWCNTs) in high density polyethylene/poly(ethylene-co-1-octene) composites. Results show that at high temperature, MWCNTs easily diffuse and disperse randomly, while at low temperature, they are confined to the HDPE phase, leading to improved electromagnetic interference shielding and conductivity. The findings provide a temperature control strategy for fabricating high-performance conductive polymer composites for microwave shielding.
POLYMER COMPOSITES
(2021)
Article
Materials Science, Multidisciplinary
Shufang Zheng, Yuyin Wang, Yifan Zhu, Chenxiao Zheng
Summary: Constructing three-dimensional segregated carbon-based nanofiller networks in the polymer matrix enhances the electrical and thermal conductivities of polymer composites. This review summarizes strategies for constructing segregated networks using various forms of carbon-based nanofillers and polymers, including 3D porous foam, particles/powders, fibers/fabrics, and aqueous latex. The review also discusses the influence of segregated networks on multifunctional performances and internal mechanisms, and analyzes current issues and future prospects.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Engineering, Environmental
Di Bao, Yueyang Gao, Yexiang Cui, Fei Xu, Xiaosong Shen, Haolei Geng, Xiguang Zhang, Dan Lin, Yanji Zhu, Huaiyuan Wang
Summary: 3D sulfanilamide-modified expanded graphite/epoxy composites with interconnected filler network were successfully prepared, demonstrating ultrahigh thermal conductivity and excellent electromagnetic interference shielding performance.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Nanoscience & Nanotechnology
Liaona She, Biao Zhao, Mingyue Yuan, Jian Chen, Bingbing Fan, Hongge Pan, Renchao Che
Summary: This study proposes a novel voltage-driven Joule heating strategy to enhance the electromagnetic interference (EMI) shielding properties of magnetic metals encapsulated within carbon nanotube (CNT) arrays. By stimulating Joule heating, the movement of electrons is enhanced, resulting in improved EMI shielding effectiveness.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2022)
Article
Chemistry, Physical
Yu Zhang, Ming-Ke Xu, Zhenguo Wang, Tianyu Zhao, Liu-Xin Liu, Hao-Bin Zhang, Zhong-Zhen Yu
Summary: In this study, mechanically flexible and electrically conductive porous films were fabricated through a controlled hydrazine foaming process. The addition of MXene prevented excessive expansion of the film, improved electron conduction paths, and enhanced mechanical properties. The resulting porous film exhibited superior mechanical and electrical performances, as well as excellent electromagnetic interference shielding properties.
Article
Chemistry, Physical
Fan Yang, Shengcun Ma, Chia Miang Khor, Yiming Su, Zahra Barani, Zhenpeng Xu, Arthur Boyko, Arpita Iddya, Naama Segev-Mark, Xiaoyu (Rayne) Zheng, Fariborz Kargar, Alexander A. Balandin, Guy Ramon, Igor De Rosa, Eric Hoek, David Jassby
Summary: To protect circuits from electromagnetic interference, lightweight, thin, and robust electromagnetic shielding materials with high electrical conductivity are required for advanced modern electronics and telecommunication technologies. Carbon nanotubes (CNT) have excellent mechanical strength, high electrical conductivity, and light weight, making them ideal candidates for electromagnetic shielding materials. A facile CNT film fabrication method was proposed in this study to enhance the conductivity of CNT films by densifying the material through collapsing the separation between neighboring CNTs.
Article
Materials Science, Multidisciplinary
Leipeng Yang, Xin Liu, Yuan Xiao, Bing Liu, Zhuo Xue, Yuping Wang
Summary: In this study, a multifunctional carbon nanotube (CNT)/polylactic acid (PLA) film with electromagnetic shielding and electric heating properties was prepared using fused deposition modeling (FDM) process. The addition of CNTs increased the EMI shielding performance and improved the electrical conductivity, resulting in good electric heating performance. By adjusting the CNT content and FDM process parameters, the obtained CNT/PLA FDM-printed films demonstrated excellent electromagnetic shielding and low-voltage electric heating properties.
Article
Engineering, Environmental
Junpyo Hong, Jisung Kwon, Dohyun Im, Jeonggil Ko, Chae Yun Nam, Hyeong Gyu Yang, Sun Ho Shin, Soon Man Hong, Seung Sang Hwang, Ho Gyu Yoon, Albert S. Lee
Summary: Multiple conductive fillers were incorporated in a polypropylene matrix through melt processing. The properties of the composites, including electrical conductivity, thermal conductivity, and EMI shielding were examined based on different filler compositions. The study also investigated the correlation between electrical conductivity and EMI shielding properties using a theoretical model.
CHEMICAL ENGINEERING JOURNAL
(2023)