Abstract
Butyl rubber–Ba(Zn1/3Ta2/3)O3 (BR–BZT) composites and butyl rubber–silica (BRS) composites were prepared by sigma mixing. The dielectric properties at 1 MHz and 5 GHz of BR–BZT and BRS composites were investigated as a function of ceramic loading and were found to be improved with filler loading. For a optimum BZT loading of 0.26 vf, the BR–BZT composite have er = 4.88, tanδ = 0.0022 (at 5 GHz), coefficient of thermal expansion (CTE) = 112 ppm/°C, thermal conductivity (TC) = 0.30 Wm−1 K−1 and water absorption = 0.047 vol%. The BRS composites attained er = 2.79, tanδ = 0.0039 (at 5 GHz), CTE = 102 ppm/°C, TC = 0.40 Wm−1 K−1 and water absorption = 0.078 vol% for the same loading of silica. The stress–strain curves of both composites showed good flexibility of the composite. The measured relative permittivity and TC of both composites were compared with different theoretical approaches.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
More From: Journal of Materials Science: Materials in Electronics
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.