탄소섬유강화 복합소재의 열적, 전기적, 기계적 특성에 대한 질화붕소 첨가제의 효과 = Effect of Boron Nitride on Mechanical Properties, Thermal and Electrical Conductivities of Carbon Fiber Reinforced Plastics

다국어 초록 (Multilingual Abstract)

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-BNepoxy composites to use for aerospace applications.

국문 초록 (Abstract)

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 복합소재의인장강도는 최대 13.6%, 계면간 전단응력은 최대 6.7% 증가하는 것을 관찰하였다. BN 첨가량에 따른 열전도도와전기전도도의 변화와, BN의 첨가량에 따른 시편의 단면 형상 변화 또한 관찰되어 탄소섬유-BN-에폭시 복합소재의 물성 제어 가능성을 제시하였다.

참고문헌 (Reference)

1 주연진, "자동차 연비향상을 위한 복합재료 적용 타당성에 관한 연구" 한국복합재료학회 32 (32): 284-289, 2019

2 Zhang, K. L., "Two Dimensional Hexagonal Boron Nitride(2D-hBN) : Synthesis, Properties and Applications" 5 (5): 11992-12022, 2017

3 Manocha, L. M., "Thermophysical Properties of Densified Pitch Based Carbon/carbon Materials-II. Bidirectional Composites" 44 (44): 488-495, 2006

4 Li, M., "Thermal Conductivity Enhancement and Heat Transport Mechanism of Carbon Fiber z-pin Graphite Composite Structures" 172 : 603-611, 2019

5 Lamontagne, C. G., "Projectile Density, Impact Angle and Energy Effects on Hypervelocity Impact Damage to Carbon Fibre/peek Composites" 26 (26): 381-398, 2001

6 Jung, H., "Prediction and Experimental Validation of Composite Strength by Applying Modified Micromechanics for Composites Containing Multiple Distinct Heterogeneities" 91 : 1-7, 2016

7 Pegorin, F., "Numerical Analysis of the Heat Transfer Properties of z-pinned Composites" 8 : 14-18, 2018

8 Liu, Z., "Novel Functionalized BN Nanosheets/Epoxy Composites with Advanced Thermal Conductivity and Mechanical Properties" 12 (12): 6503-6515, 2020

9 Pozegic, T. R., "Multi-Functional Carbon Fibre Composites using Carbon Nanotubes as an Alternative to Polymer Sizing" 6 : 37334-, 2016

10 Bian, X. M., "Mechanical, Thermal, and Electrical Properties of BN-Epoxy Composites Modified with Carboxyl-Terminated Butadiene Nitrile Liquid Rubber" 11 (11): 1548-1570, 2019

11 Pozegic, T. R., "Low Temperature Growth of Carbon Nanotubes on Carbon Fibre to Create a Highly Networked Fuzzy Fibre Reinforced Composite with Superior Electrical Conductivity" 74 : 319-328, 2014

12 Choi, H. K., "Interfacial Effects of Nitrogen-doped Carbon Nanotubes on Mechanical and Thermal Properties of Nanocomposites : A Molecular Dynamics Study" 167 : 615-620, 2019

13 Zhao, Y. F., "Influence of Fabric Architecture and Weaving Parameter on the Thermal Conductivities of 3D Woven Composites" 51 (51): 3041-3051, 2017

14 Kandare, E., "Improving the Through-thickness Thermal and Electrical Conductivity of Carbon Fibre/epoxy Laminates by Exploiting Synergy between Graphene and Silver Nano-inclusions" 69 : 72-82, 2015

15 Kim, C. H., "Impact Characteristics of Composite Panel Stitched by I-fiber Process" 127 : 105644-, 2019

16 Taylor, E. A., "Hypervelocity Impact on Carbon Fibre Reinforced Plastic/aluminium Honeycomb : Comparison with Whipple Bumper Shields" 23 (23): 883-893, 1999

17 Huang, X. S., "Fabrication and Properties of Carbon Fibers" 2 (2): 2369-2403, 2009

18 Zheng, W., "Electrical Conductivity and Dielectric Properties of PMMA/expanded Graphite Composites" 63 (63): 225-235, 2003

19 Abanilla, M. A., "Durability Characterization of Wet Layup Graphite/epoxy Composites Used in External Strengthening" 37 (37): 200-212, 2005

20 Summerscales, J., "Carbon-Fiber and Glass-Fiber Hybrid Reinforced-Plastics" 9 (9): 157-166, 1978

21 Jonathan Tapullima, "Analysis on Stitched Mode I Specimen Using Spring Elements" 한국복합재료학회 32 (32): 102-107, 2019

22 조광훈, "3D Textile 프리폼 제조 및 복합재료 기계적 특성 연구" 한국복합재료학회 32 (32): 65-70, 2019