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Microwave absorbing properties of structural nanocomposites with surface treated Co ferrite nanoparticles as filler
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology.
2010 (English)In: Behavior And Mechanics Of Multifunctional Materials And Composites 2010, SPIE - International Society for Optical Engineering, 2010, 76441E- p.Conference paper, (Refereed)
Abstract [en]

An analysis of the microwave absorbing properties of several polymer-(epoxy) based nanocomposites is presented. The nanoparticles of interest for this study were cobalt ferrite nanoparticles. For better dispersion of the nanoparticles in the polymer matrix surface treatment of the nanoparticles with silane compounds was performed. The nanoparticles were surface-treated with 3-glycidoxypropyl- (GPTMS), aminopropyl- (APTMS) or methyl-silsesquioxane (MTMS). The nanoparticles with GPTMS-coating dispersed well in epoxy without sedimentation while the other nanoparticles formed agglomerates in epoxy. The GPTMS-based composites showed higher fracture toughness than the MTMS-based composites. The microwave properties, permittivity and permeability, of GPTMS-based composites were measured in the frequency range between 3.95 GHz and 18 GHz and showed no influence of surface treatment on permeability.

Place, publisher, year, edition, pages
SPIE - International Society for Optical Engineering, 2010. 76441E- p.
Series
Proceedings of SPIE - The International Society for Optical Engineering, ISSN 0277-786X ; 7644
Keyword [en]
Absorption properties, Ferrites, Microwaves, Nanocomposites, Silane, Surface treatment
National Category
Other Physics Topics
Identifiers
URN: urn:nbn:se:kth:diva-149398DOI: 10.1117/12.847556ISI: 000285624700033Scopus ID: 2-s2.0-77953507375ISBN: 978-0-8194-8059-0 (print)OAI: oai:DiVA.org:kth-149398DiVA: diva2:739484
Conference
Behavior and Mechanics of Multifunctional Materials and Composites 2010, 8 March 2010 through 11 March 2010, San Diego, CA, United States
Note

QC 20140821

Available from: 2014-08-21 Created: 2014-08-21 Last updated: 2014-08-21Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
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More styles
Language
  • de-DE
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Output format
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