Efficient electromagnetic interference shielding of lightweight carbon nanotube/polyethylene composites via compression molding plus salt-leaching.

ABSTRACT: Carbon nanotube/high density polyethylene (CNT/HDPE) foam composites with high electrical conductivity and electromagnetic interference (EMI) shielding performance were developed by means of compression molding plus salt-leaching. The uniform porous structure and interconnected CNT networks throughout the cell backbones endowed the as-prepared foam composites with a significantly lower electrical percolation threshold (0.22 vol%) than that of the solid composites (0.84 vol%). Owing to the multiple reflections and scattering between the cell-matrix interfaces, the foam composites presented a superior specific EMI shielding effectiveness (EMI SE) of 104.3 dB cm³ g^-1, 2.2 times higher than that of their solid counterpart. Besides this, the pore sizes of the CNT/HDPE foam

SUBMITTER: Xu L 

PROVIDER: S-EPMC9078618 | biostudies-literature | 2018 Feb

REPOSITORIES: biostudies-literature