Hyunkee Hong*,**, Kwak Jin
Bae*, Jaesang Yu*†
* Institute of Advanced Composite Materials, Korea Institute of Science and Technolog (KIST), Jeollabukdo, Korea
*† Institute of Advanced Composite Materials, Korea Institute of Science and Technolog (KIST), Jeollabukdo, Korea
** Department of Chemical & Biological Engineering and Institute of Chemical Process, Seoul National University (SNU), Seoul, Korea
홍현기*,** · 배곽진* · 유재상*†
In this paper, hexagonal boron nitride (h-BN)
particles were added between the sheets of prepreg, and the effect of on many
properties of BN-embedded carbon fiber reinforced plastics was investigated.
The amount of BN particles which corresponds with 0 to 15 wt% of total resin
weight was used as an additive material. The tensile strength and the
inter-laminar shear strength of BN-embedded CFRP samples were improved by
maximally 13.6%, and 6.7%, respectively. The tendency changes of thermal,
electrical conductivities and the morphology of cross-section of CFRPs were
also observed. This study suggests the possibility of controlling the
characteristics of carbon fiber-BN-epoxy composites to use for aerospace
applications.
질화붕소(BN)는 높은 열전도도를 가지는 2D 형상의 부도체로 복합재료의 강화 필러로 연구되고 있는 물질이다. 본
연구에서는 판상의 육방정 질화붕소(h-BN)를 탄소섬유 다발 사이에 첨가하여 BN이 함유된 탄소섬유강화 복합소재(CFRPs)를 제조하여 BN 필러가 CFRP의 여러 물성에 어떤 영향을 주는지 탐구하였다. 사용된 프리프레그의 수지 총량의 0-15 wt%의 BN 필러가 프리프레그 층 사이에 첨가되었다. BN 필러가 첨가된
복합소재의 인장강도는 최대 13.6%, 계면간 전단응력은 최대
6.7% 증가하는 것을 관찰하였다. BN 첨가량에 따른 열전도도와 전기전도도의 변화와, BN의 첨가량에 따른 시편의 단면 형상 변화 또한 관찰되어 탄소섬유-BN-에폭시
복합소재의 물성 제어 가능성을 제시하였다.
Keywords: 탄소섬유강화 복합재료(Carbon fiber reinforced plastics), 질화붕소(Boron nitride), 열전도도(Thermal conductivity), 전기전도도(Electrical conductivity), 기계적 물성(Mechanical properties)
2020; 33(3): 153-160
Published on Jun 30, 2020
Institute of Advanced Composite Materials, Korea Institute of Science and Technolog (KIST), Jeollabukdo, Korea