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EMI Shielding Effectiveness of Carbon Nanofiber Filled Poly(vinyl alcohol) Coating Materials
Author(s) -
Lee Bang One,
Woo Won Jun,
Kim MyungSoo
Publication year - 2001
Publication title -
macromolecular materials and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 96
eISSN - 1439-2054
pISSN - 1438-7492
DOI - 10.1002/1439-2054(20010201)286:2<114::aid-mame114>3.0.co;2-8
Subject(s) - materials science , coating , vinyl alcohol , composite material , carbon nanofiber , electromagnetic shielding , nanofiber , fabrication , polymer , carbon fibers , carbon nanotube , composite number , medicine , alternative medicine , pathology
Electromagnetic interference (EMI) shielding on plastic mostly consists of conductive fibers in a polymer matrix. This study describes a route for the fabrication of carbon nanofiber filled poly(vinyl alcohol) (PVA) coating materials. Electrical conductivity of the coating materials ranged from 0.033 to 0.169 S/cm depending on the carbon nanofiber fillers produced from different catalyst compositions and gas types. At the frequency of 850 MHz, the shielding effectiveness of coating materials filled with carbon nanofibers was 0.5–1.6 dB, and the values were improved into 1.6–4.8 dB as the carbon nanofibers were treated at 1 100°C for 1 h.