Special Issue
  • Mechanical, Electrical and Thermal Properties of Polymer Composites Containing Long Carbon Fibers and Multi-walled Carbon Nanotubes

  • Min Su Kim*,#, Ki Hoon Kim**,#, Bo-kyung Choi***, Jong Hyun Park***,††, Seong Yun Kim*, **,†

  • * Department of Organic Materials and Textile Engineering, Jeonbuk National University, Jeonju 54896, Republic of Korea
    ** Department of Carbon Composites Convergence Materials Engineering, Jeonbuk National University, Jeonju 54896, Republic of Korea
    *** Carbon and Hydrogen Research Association, Jeonju, Republic of Korea

  • 탄소장섬유와 다중벽 탄소나노튜브가 혼입된 고분자 복합재료의 기계적, 전기적 및 열적 특성

  • 김민수*,# · 김기훈**,# · 최보경*** · 박종현***,†† · 김성륜*, **,†

  • This article is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Mechanical, electrical and thermal properties of polymer composites can be improved simultaneously by incorporating carbon fibers (CFs), which are beneficial for improving the mechanical properties, and multi-walled carbon nanotubes (MWCNTs), which are advantageous for improving the conductive properties. In this study, MWCNTs were incorporated into carbon long fiber thermoplastic (CLFT), which has excellent mass production processability and excellent mechanical properties, to control electrical and thermal properties. The mechanical and electrical properties of the prepared composites were most significantly influenced by the amount of filler incorporated. On the other hand, the thermal properties were improved due to the formation of a filler network interconnected by the incorporation of MWCNTs. By adjusting the filler amount, filler composition, and filler network structure of MWCNT-incorporated CLFT, the mechanical, electrical, and thermal properties could be controlled.


고분자 복합재료의 기계적 특성 향상에 유리한 탄소섬유(Carbon fiber, CF)와 전도 특성 향상에 유리한 다중벽 탄소나노튜브(Multi-walled carbon nanotube, MWCNT)의 동시 혼입을 통해 기계적, 전기적 및 열적 특성을 동시에 향상시킬 수 있다. 본 연구에서는 우수한 양산 가공성과 준수한 기계적 특성을 나타내는 탄소장섬유 열가소성플라스틱(Carbon long fiber thermoplastic, CLFT)에 MWCNT를 혼입하여 전기적 및 열적 특성 제어하였다. 제조된 복합재료의 기계적 및 전기적 특성은 필러의 혼입 양에 가장 크게 영향을 받았다. 반면, 열적 특성은 MWCNT의 혼입으로 연결된 필러 네트워크가 형성됨으로써 더 우수한 결과를 나타내었다. MWCNT 혼입 CLFT의 필러 혼입량, 필러 조성 및 필러 네트워크 구조를 조절함으로써 목적에 적합한 기계적, 전기적 및 열적 특성 제어할 수 있었다.


Keywords: 탄소섬유(Carbon fiber), 복합재료(Composite materials), 탄소장섬유 열가소성 플라스틱(Carbonlongfiber thermoplastic), 카본나노튜브(Carbon nanotube)

This Article

Correspondence to

  • Jong Hyun Park***, Seong Yun Kim*, **

  • * Department of Organic Materials and Textile Engineering, Jeonbuk National University, Jeonju 54896, Republic of Korea
    ** Department of Carbon Composites Convergence Materials Engineering, Jeonbuk National University, Jeonju 54896, Republic of Korea
    *** Carbon and Hydrogen Research Association, Jeonju, Republic of Korea

  • E-mail: jhpark@carbonkorea.or.kr, sykim82@jbnu.ac.kr