Applied Chemistry for Engineering (공업화학)

The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
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Effect of Wrapping Treatment on the Dispersion of MWNT in CNT/ABS/SAN Composites

CNT/ABS/SAN계의 분산성에 미치는 MWNT Wrapping 전처리 효과

  • Kim, Sung Tae (R&D Center, Woosung Chemical Ltd.) ;
  • Park, Hae Youn (Department of Polymer Science & Engineering, Kyungpook National University) ;
  • No, Tae Kyeong (Department of Polymer Science & Engineering, Kyungpook National University) ;
  • Kang, Dong Gug (Research & Development Institute, Pyung-hwa Oil seal Industry co., LTD.) ;
  • Jeon, Il Ryeon (Department of Chemial Engineering, Kyungil University) ;
  • Seo, Kwan Ho (Department of Polymer Science & Engineering, Kyungpook National University)
  • 김성태 ((주)우성케미칼 연구소) ;
  • 박해윤 (경북대학교 고분자공학과) ;
  • 노태경 (경북대학교 고분자공학과) ;
  • 강동국 (평화오일씰공업(주) 기술개발본부) ;
  • 전일련 (경일대학교 화학공학과) ;
  • 서관호 (경북대학교 고분자공학과)
  • Published : 2012.08.10
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Abstract

Carbon nanotubes (CNT) are considered as one of ideal nano-fillers in the field of composites with their excellent electrical, mechanical, and thermal properties. Therefore CNT composites are increasingly used in fabricating conductive materials, structural materials with high strength and low weight, and multifunctional materials. The main problem of the CNT composites is difficulty in the dispersion of CNT in the polymer matrix. In this study multi-walled carbon nanotubes (MWNT) were pretreated by the physical process utilizing a wrapping method. After the pretreatment polymer/MWNT nanocomposites were prepared by melt processing. The effect of functionalization MWNT by wrapping with styrene acrylonitrile (SAN) on the mechanical and electrical properties of acrylonitrile butadiene styrene resin (ABS)/MWNT composites was studied by comparing the properties of ABS mixed with the neat MWNT. Electrical and mechanical properties of ABS/MWNT nanocomposites were studied as a function of the functionalization and content of MWNT. The tensile strength of the ABS/MWNT nanocomposites increased, but the impact strength decreased. The polymer wrapping in ABS system has little effect on the improvement of electrical properties.

탄소나노튜브는 좋은 전기 기계적 및 열적 특성을 가진 복합 재료 분야에서 가장 이상적인 나노 충전재이다. 따라서 탄소나노튜브의 복합 재료는 전도성 재료, 고강도를 가지면서 가벼운 무게를 가지는 재료에 이용된다. 탄소나노튜브 복합재료의 주요 문제점은 탄소나노튜브의 나쁜 분산에 있다. 본 연구에서는 다중벽 탄소나노튜브(MWNT)를 물리적 방법으로 전처리하였다. 전처리 후, 고분자/MWNT nanocomposites는 용해 공정에 의해 분산되었다. 물리적 방법은 고분자 wrapping 방법에 의해 준비되었다. ABS/MWNT 복합 재료의 기계적 및 전기적 특성을 SAN과 함께 wrapping된 MWNT와 미처리된 MWNT와 혼합된 ABS의 속성을 비교하여 연구하였다. MWNT가 wrapping된 복합체의 인장강도는 증가하였으나 충격강도는 감소한 수치를 보였다. 전기적 물성의 향상에는 미처리시료와 비교해 볼 때 큰 효과가 없었다.

Keywords

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