Achieving acceptable electromagnetic interference shielding in UHMWPE/ground tire rubber composites by building a segregated network of hybrid conductive carbon black

Polymeric composites with the hybrid filler network for high-performance electromagnetic interference (EMI) shielding brought increasing interest. Herein, UHMWPE/ground tire rubber (GTR)/conductive carbon black (CCB) (UGC) composites with a hybrid segregated structural CCB-GTR were constructed by so...

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Bibliographic Details
Published in:Nanocomposites 2023-12, Vol.9 (1), p.100-115
Main Authors: Cheng, Huibin, Zhang, Gongxi, Liu, Xuhong, Lin, Yukai, Ma, Shenglan, Lin, Guoliang, Zhang, Xiaoyi, Huang, Baoquan, Qian, Qingrong, Wu, Chen
Format: Article
Language:English
Subjects:
Acceptable noise levels
Carbon black
Civil engineering
conductive carbon black (CCB)
Electrical resistivity
Electromagnetic interference
Electromagnetic shielding
ground tire rubber (GTR)
Growth models
High density polyethylenes
Hot pressing
Mechanical properties
Microwave attenuation
Molecular weight
Nanocomposites
Percolation
Phase transitions
Polyethylene
Polymer matrix composites
Polymers
Polyolefins
Rubber
segregated structure
sigmoidal/growth models
Solid phases
Tires
UHMWPE/GTR/CCB (UGC)
Ultra high molecular weight polyethylene
Ultra-high molecular weight polyethylene (UHMWPE)
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Summary:Polymeric composites with the hybrid filler network for high-performance electromagnetic interference (EMI) shielding brought increasing interest. Herein, UHMWPE/ground tire rubber (GTR)/conductive carbon black (CCB) (UGC) composites with a hybrid segregated structural CCB-GTR were constructed by solid-phase shear milling (S3M), mechanical blending, and compacted molding processes. The percolation behavior of electrical conductivity and EMI shielding effectiveness (SE) of composites was described using Sigmoidal/Growth models, and its EMI shielding mechanism was discussed. Results showed that the EMI SE of U30G70C20, U50G50C20, and U70G30C20 composites were found to be 37.5, 41.7, and 43.8 dB, respectively, due to constructing a hybrid network. The attenuation rate of microwave radiation is above 99.99%, and the shielding mechanism is mainly electrical loss. Moreover, the relationship between electrical conductivity and EMI SE is consistent with Sigmoidal/Growth models, indicating that Sigmoidal/Growth models can successfully predict the percolation threshold of the EMI SE of UGC composites.
ISSN:2055-0324
2055-0332
DOI:10.1080/20550324.2023.2251202