Journal Article10.1016/J.COMPOSITESA.2018.05.004
Constructing highly oriented segregated structure towards high-strength carbon nanotube/ultrahigh-molecular-weight polyethylene composites for electromagnetic interference shielding
Wan-Cheng Yu,Jia-Zhuang Xu,Zhi-Guo Wang,Yan-Fei Huang,Hua-Mo Yin,Ling Xu,Yuan-Wei Chen,Ding-Xiang Yan,Zhong-Ming Li +8 more
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TL;DR: In this article, solid phase extrusion (SPE) was used to prepare mechanically strong carbon nanotube/ultrahigh-molecular-weight polyethylene composites with highly oriented segregated structure.
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Abstract: Formation of segregated structure in the conductive polymer composites remarkably improves electrical conductivity and electromagnetic interference shielding effectiveness (EMI SE), however suffers from the deteriorated mechanical performance due to the poor interfacial interaction between the polymer granules. Herein, solid phase extrusion (SPE) was used to prepare mechanically strong carbon nanotube/ultrahigh-molecular-weight polyethylene composites with highly oriented segregated structure. The tensile strength of SPE composites was significantly enhanced to a considerable level of ∼100 MPa, 178% higher than the conventional compression-molded (CM) counterparts (∼36 MPa). It was attributed to the structure orientation induced by the shear flow and compacted granule adhesion facilitated by the high extrusion pressure of SPE. Moreover, SPE composites displayed the comparable electrical conductivity and EMI SE to the CM samples. Besides, an unusual resonance peak appeared on the EMI SE curves for SPE samples due to the special segregated structure, giving a hint of selective EMI shielding.
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Citations
Electromagnetic Interference Shielding Polymers and Nanocomposites - A Review
Dawei Jiang,Vignesh Murugadoss,Ying Wang,Jing Lin,Tao Ding,Zicheng Wang,Qian Shao,Chao Wang,Hu Liu,Na Lu,Renbo Wei,A. Subramania,Zhanhu Guo +12 more
TL;DR: In this article, the authors used ICP and conductive fillers incorporated in conductive polymer-based composites (CPC) to facilitate the research in electromagnetic interference (EMI) s...
615
Construction, mechanism and prospective of conductive polymer composites with multiple interfaces for electromagnetic interference shielding: A review
TL;DR: In this paper, the authors reviewed conductive polymer composites (CPC) with multiple interfaces which have demonstrated to improve EMI SE, including foamed/porous, segregated, multi-component, multilayered/sandwiched and prefabricated conductive networks.
544
Progress in polymers and polymer composites used as efficient materials for EMI shielding
Ján Kruželák,Andrea Kvasničáková,Klaudia Hložeková,Ivan Hudec +3 more
- 07 Jan 2021
TL;DR: In this article, the authors provide a comprehensive description of the intrinsic conductive polymers, polymers filled with different types of inorganic and organic fillers, as well as multifunctional polymer architectures with respect to their conductive, dielectric, magnetic and shielding characteristics.
Advances in electromagnetic shielding properties of composite foams
Biao Zhao,Biao Zhao,Biao Zhao,Mahdi Hamidinejad,Shuai Wang,Pengwei Bai,Renchao Che,Rui Zhang,Chul B. Park +8 more
TL;DR: In this paper, the authors review the current position in research of the design of inorganic based foams (metal, carbon or MXene) and polymer composite foams as EMI shielding materials.
239
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