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      Enhancement of Electromagnetic Interference Shielding Performance and Wear Resistance of the UHMWPE/PP Blend by Constructing a Segregated Hybrid Conductive Carbon Black–Polymer Network

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          Abstract

          The low-percolation-threshold conductive networking structure is indispensable for the high performance and functionalization of conductive polymer composites (CPCs). In this work, conductive carbon black (CCB)-reinforced ultrahigh-molecular-weight polyethylene (UHMWPE)/polypropylene (PP) blend with tunable electrical conductivity and good mechanical properties was prepared using a high-speed mechanical mixing method and a compression-molded process. An interconnecting segregated hybrid CCB–polymer network is formed in electrically conductive UHMWPE/PP/CCB (UPC) composites. The UPC composites possess a dense conductive pathway at a low percolation threshold of 0.48 phr. The composite with 3 phr CCB gives an electrical conductivity value of 1.67 × 10 –3 S/cm, 12 orders of magnitude higher than that of the polymeric matrix, suggesting that CCB improves both the electrical conductivity and electromagnetic interference shielding effectiveness (EMI SE) of the composite at the loading fraction over its percolation threshold. The composite with 15 phr CCB presents an absorption-dominated electromagnetic interference shielding effectiveness (EMI SE) as high as 27.29 dB at the X-band. The composite also presents higher tribological properties, mechanical properties, and thermal stability compared to the UP blend. This effort provides a simple and effective way for the mass fabrication of CPC materials with excellent performance.

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          Carbon Materials and Their Composites for Electromagnetic Interference Shielding Effectiveness in X-band

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            Progress on the morphological control of conductive network in conductive polymer composites and the use as electroactive multifunctional materials

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              Honeycomb structural rGO-MXene/epoxy nanocomposites for superior electromagnetic interference shielding performance

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                Author and article information

                Journal
                ACS Omega
                ACS Omega
                ao
                acsodf
                ACS Omega
                American Chemical Society
                2470-1343
                02 June 2021
                15 June 2021
                : 6
                : 23
                : 15078-15088
                Affiliations
                []College of Environmental Science and Engineering, Fujian Normal University , Fuzhou 350007, Fujian, China
                []College of Life Science, Fujian Normal University , Fuzhou 350007, Fujian, China
                [§ ]Engineering Research Center of Polymer Green Recycling of Ministry of Education , Fuzhou 350007, Fujian, China
                []Fujian Key Laboratory of Pollution Control & Resource Reuse , Fuzhou 350007, China
                []College of Materials and Chemical Engineering, Liming Vocational University , Tonggang Road 298, Quanzhou 362000, Fujian, China
                Author notes
                Author information
                https://orcid.org/0000-0001-9761-7813
                https://orcid.org/0000-0003-1170-7872
                Article
                10.1021/acsomega.1c01240
                8210415
                dff366e9-79b4-4981-b135-64d58c409645
                © 2021 The Authors. Published by American Chemical Society

                Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works ( https://creativecommons.org/licenses/by-nc-nd/4.0/).

                History
                : 07 March 2021
                : 06 May 2021
                Funding
                Funded by: Ministry of Science and Technology of the People''s Republic of China, doi 10.13039/501100002855;
                Award ID: 2016YFB0302300
                Funded by: Fujian Province, doi NA;
                Award ID: 2017H6004
                Categories
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                Custom metadata
                ao1c01240
                ao1c01240

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