Journal
JOURNAL OF POLYMER ENGINEERING
Volume 34, Issue 8, Pages 739-746Publisher
WALTER DE GRUYTER GMBH
DOI: 10.1515/polyeng-2014-0053
Keywords
carbon nanofiber film; electromagnetic shielding effectiveness; injection molding; in-mold coating
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Funding
- Ohio State University Center for Advanced Polymers and Composites Engineering (CAPCE)
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Electromagnetic interference (EMI) is a disturbance that affects an electrical circuit due to electromagnetic radiation emitted from an external source. EMI may induce malfunction of equipment, interference with telecommunications and degradation up to total loss of data. EMI shielding refers to the reflection and/or adsorption of electromagnetic radiation by a highly electrically conductive material, usually metal, or polymer composites filled with conductive fillers. However, metal coatings tend to corrode and acceptable EMI shielding levels are difficult to achieve using conductive fillers in a thermoplastic matrix. This study presents a new approach to EMI shielding of plastic parts using in-mold coated (IMC) nanoparticle thin films or nanopapers to create a highly conductive top layer. EMI shielding effectiveness (SE) and electrical conductivity were measured.
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