Abstract
The reflection loss (RL) performance and impedance matching characteristics of polypropylene (PP)/carbon fiber composite were studied according to two different composite preparation methods. For the PP/carbon fiber composite prepared by injection molding process, the RL value of -29.1 dB was achieved at low carbon fiber content (10 wt%), compared with the composite prepared by screw extrusion process (-15.6 dB). This good RL performance of the PP/carbon fiber composite prepared by the injection molding process was attributed to the impedance matching characteristic originating fi-om the longer fiber length in the composite, than in the composite prepared by screw extrusion. The results suggest that the carbon fiber length in the composite is an important factor to achieve PP/carbon fiber composites that have effective electromagnetic wave absorbing properties.
Original language | English |
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Pages (from-to) | 185-190 |
Number of pages | 6 |
Journal | Polymer (Korea) |
Volume | 45 |
Issue number | 2 |
DOIs | |
Publication status | Published - 2021 Mar |
Bibliographical note
Publisher Copyright:©2021 The Polymer Society of Korea. All rights reserved.
Keywords
- Carbon fiber
- Electrical conductivity
- Electromagnetic properties
- Polymer composite
ASJC Scopus subject areas
- General Chemical Engineering
- Polymers and Plastics
- Materials Chemistry