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http://dx.doi.org/10.4191/KCERS.2003.40.12.1183

Preparation and Dielectric Properties of LCP and BaTiO3 Composites  

윤기현 (연세대학교 세라믹공학과)
이승주 (연세대학교 세라믹공학과)
양병덕 (연세대학교 세라믹공학과)
김종희 (삼성전기 주식회사)
Publication Information
Journal of the Korean Ceramic Society / v.40, no.12, 2003 , pp. 1183-1188 More about this Journal
Abstract
LCP (Liquid Crystal Polymer)/BT(BaTiO$_3$) composite was prepared by mixing LCP varnish and BT slurry. And the effect of the composition of LCP/BT composites and the size of BT powder on dielectric properties of LCP/BT composite were investigated. The dispersion properties of BT slurries were also studied as a function of volume fraction of dispersant, GLYMO (3-glycidyloxypropyltrimethoxysilane) added to various sized BT powders. The quantity of optimum dispersant in BT slurry decreased with an increase of BT powder size because of the decrease of specific surface area of BT powder. LCP/BT composite sheet was prepared by tape-casting method with mixing BT slurry and LCP varnish. The dielectric constant of the composites increased from 34.3 to 44.1 and their dielectric loss increased from 0.05 to 0.063 as the size of BT powder increased from 100 nm to 500 nm.
Keywords
Liquid crystal polymer; $BaTiO_3$; Composite; Dielectric; Dispersion;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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