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Polyvinylbutyral–Polyaniline Nanocomposite for High Microwave Absorption Efficiency

[Image: see text] A coatable polyvinylbutyral (PVB)–polyaniline (PANI) nanocomposite was designed for high microwave absorption efficiency. The maximum absorption efficiency 88.2 dB GHz/mm was obtained for the PANI nanofiber-loaded PVB (PVBPN) nanocomposite with a large bandwidth, whereas a pristine...

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Detalles Bibliográficos
Autores principales: Bora, Pritom J., Azeem, Irthasa, Vinoy, K. J., Ramamurthy, Praveen C., Madras, Giridhar
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2018
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6644212/
https://www.ncbi.nlm.nih.gov/pubmed/31458287
http://dx.doi.org/10.1021/acsomega.8b02037
Descripción
Sumario:[Image: see text] A coatable polyvinylbutyral (PVB)–polyaniline (PANI) nanocomposite was designed for high microwave absorption efficiency. The maximum absorption efficiency 88.2 dB GHz/mm was obtained for the PANI nanofiber-loaded PVB (PVBPN) nanocomposite with a large bandwidth, whereas a pristine PANI-containing composite shows 53.5 dB GHz/mm in the frequency range 8.2–18 GHz. The presence of nanoslit pores in PVBPN also helps to achieve a large bandwidth and hence high microwave absorption efficiency. Standard electromagnetic simulation also shows that power absorbed by the PVBPN nanocomposite is high and its ultrathin coating over the dielectric substrate (epoxy) is promising for broadband tuneable reflection loss.