Effect of surfactant addition on the dielectric properties of BaTiO3/epoxy composites

Title
Effect of surfactant addition on the dielectric properties of BaTiO3/epoxy composites
Authors
이동호김병국제해준
Keywords
BaTiO3/에폭시 복합체; 분산제; 유전상수; 온도계수; 커패시터; BaTiO3/epoxy composites; surfactan; dielectric constant; TCC; capacitor
Issue Date
2009-11
Publisher
한국재료학회지; Korean Journal of Materials Research
Citation
VOL 19, NO 11, 574-578
Abstract
The BaTiO3/epoxy composites have been widely investigated as promising materials for embedded capacitors in printed circuit boards. It is generally known that the dielectric constant (K) of the BaTiO3/epoxy composites increases with improving the dispersion of BaTiO3 particles in epoxy matrix by adding surfactant. The influences of surfactant addition on the dielectric properties of the BaTiO3/epoxy composites are reported in the present study. The dielectric constant of the BaTiO3/epoxy composites is not significantly affected by the surfactant addition. However, the temperature coefficient of capacitance increases and the peel strength decreases as the amount of added surfactant increases. The influences of surfactant addition on the dielectric properties of the neat epoxy are also very similar to those of the BaTiO3/epoxy composites. The residual surfactant in the BaTiO3/epoxy composites affects the temperature coefficient of capacitance and the peel strength of the epoxy matrix, which in turn affects those of the BaTiO3/epoxy composites.
URI
http://pubs.kist.re.kr/handle/201004/41710
ISSN
1225-0562
Appears in Collections:
KIST Publication > Article
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