Enhanced Dielectric Properties of Polyimide Matrix Using Modified Electrospun Barium Titanate Nanofibers

Abstract:

Recently, many researchers focus on the nanoscale fillers to enhance electrical properties of composite due to the uniqueness of material. In this study, polyimide/barium titanate (BaTiO₃) nanofibers films were prepared by incorporating electrospun BaTiO₃ nanofibers with polyimide derived from 2,2-Bis [4-(4-aminophenoxy) phenyl] propane (BAPP) and 3,3',4,4'-Biphenyl tetracarboxylic dianhydride (BPDA). The obtained nanofibers were modified with (3-Glycidyloxypropyl) trimethoxysilane as coupling agent before integrating into the polyimide matrix. Microstructure and dielectric properties of BaTiO₃ nanocomposites were investigated. The results showed BaTiO₃ nanofibers were successfully produced at nanoscale regime and well dispersed in the hybrid film after modification and ultrasonication method. Dielectric constant of the nanofibers films were improved and increased with increasing of BaTiO₃ nanofibers concentration while dielectric loss remains relative low.

• Periodical: Solid State Phenomena (Volume 264)
• Pages: 62-65
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.264.62
• Online since: September 2017
• Authors: So Pheak Meng, Zulkifli Ahmad*, Hanafi bin Ismail, Tan Soon Huat, Kry Nallis, Mitsugu Todo
• Keywords: BaTio₃ Nanofiber, Dielectric Constant, Electrospinning, Polyimide

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