The potential of silk-based porous resins for use as a novel bio-based materials was investigated by studying their dielectric properties. A porous silk compact was fabricated by dispersing powdered natrium chloride into the silk resin and leaching it in distilled water. The dielectric constants and loss tangent of the porous silk compact were measured by employing the parallel plate method and the open-ended reflection method. These values decreased as the porosity of the porous compact was increased by adding a large amount of powdered natrium chloride. In the case of a porous silk compact with a porosity of 54%, the dielectric constant was 2.5 at a frequency of 1 MHz and decreased gradually at higher frequencies. The dielectric constant was 2.1 at a frequency of 1.8 GHz. The loss tangent was 0.015 at a frequency of 1 MHz and did not change even at higher frequencies.
多孔質シルク成形体の作製と誘電特性
No20-ken_19-21.pdf
(562.18KB)
