아민 기능화된 탄소나노튜브의 분산상태 및 표면자유 에너지 변화가 탄소나노튜브/탄소섬유강화 복합소재의 기계적 특성에 미치는 영향

최웅기; 박길영; 신홍석; 국윤수; 김병석; 서민강

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자료유형: 학술저널

저자정보: 최웅기 (한국탄소융합기술원) 박길영 (한국탄소융합기술원) 신홍석 (한국탄소융합기술원) 국윤수 (한국탄소융합기술원) 김병석 (전북대학교 유기소재파이버공학과) 서민강 (한국탄소융합기술원)

저널정보: 한국섬유공학회 한국섬유공학회지 한국섬유공학회지 제54권 제3호

발행연도: 2017.1

수록면: 209 - 216 (8page)

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연구결과

초록· 키워드

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In this work, the effects of the dispersive condition and surface energy change of multi-walled carbon nanotube (MWCNT) on the mechanical properties of amino-functionalized MWCNT containing carbon fibers-reinforced epoxy composites were studied. Amino-functionalization of MWCNT was carried out by grafting spermidine and p-phenylenediamine onto the surfaces of MWCNT through amidation. The surface properties of the MWCNT before and after amidation were observed using scanning electron microscope (SEM), Fourier transform infrared (FT-IR), X-ray photoelectron spectroscope (XPS), microscope, and contact angle measurements. Theoretical interfacial adhesions between the MWCNT and the epoxy resins were studied by calculating the work of adhesion and demonstrated by interlaminar shear strength (ILSS). From the experimental results, it was found that amino-functionalized MWCNT showed quite a homogeneous dispersion state in epoxy matrix resins. Additionally, the interfacial adhesions could be improved by amino-functionalizing MWCNTs surfaces. Consequently, the introduction of an amino-functional group on MWCNT surfaces positively affected the dispersibility of MWCNT, which resulted in improving the mechanical properties of the carbon fibers-reinforced epoxy composites.

#multi-walled carbon nanotube #amino-functionalization #carbon fibers-reinforced composites #dispersion #interfacial adhesion #surface free energy

참고문헌 (32)

참고문헌 신청

J. Baur / 2007 / Challenges and Opportunities in Multifunctional Nanocomposites Structures for Aerospace Application / MRS Bull 32:328~334

O. Breuer / 2004 / Big Returns form Small Fibers:A Review of Polmer/Carbon Nanotube Composites / Polym. Compos 25:630~645

W. M. Chen / 2007 / Effect of New Epoxy Matrix for T800 Carbon Fiber/epoxy Filament Wound Composites / Compos. Sci. Technol 67:2261~2270

M. Li / 2013 / Investigation the Interphase Formation Process of Carbon Fiber/Epoxy Composites Using a Multiscale Simulation Method / Compos. Sci. Technol 86:117~121

Q. Zhang / 2015 / Influence of Matrix Modulus on the Mechanical and Interfacial Properties of Carbon Fiber Filament Wound Composites / RSC Adv 5:25208~25214

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