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Dielectric and microwave-absorption properties of the partially carbonized PAN cloth/epoxy–silicone composites

Authors
Journal
Composites Part B Engineering
1359-8368
Publisher
Elsevier
Volume
43
Issue
8
Identifiers
DOI: 10.1016/j.compositesb.2012.05.045
Keywords
  • A. Fabrics/Textiles
  • A. Polymer–Matrix Composites (Pmcs)
  • B. Electrical Properties
  • E. Cure
Disciplines
  • Physics

Abstract

Abstract Partially carbonized PAN cloth/epoxy–silicone composites were prepared as microwave-absorbing materials in this paper. Their dielectric properties were studied in X-band, and the results showed that the complex permittivity of the composites was closely correlated with the carbonization degree of PAN cloth. The microwave wave absorption ability of the composites could be primarily attributed to the growth of graphite sheets in partially carbonized PAN cloth, which could be optimized by means of controlling carbonization temperature and time of the stabilized PAN cloth. The results demonstrated the possible applications of partially carbonized PAN cloth/epoxy–silicone composites as lightweight electromagnetic wave absorbers.

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