Composites Research

  • 제29권4호
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  • Pages.125-131
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  • 2016
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  • 2288-2103(pISSN)
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  • 2288-2111(eISSN)
한국복합재료학회 (The Korean Society for Composite Materials)
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용매를 이용한 에폭시 희석 조건이 CNT 에폭시 복합재료 내 CNT 분산도에 미치는 영향

Effects of Solvent-Based Dilution Condition on CNT Dispersion in CNT/Epoxy Composites

  • Kwon, Dong-Jun (Department of Materials Engineering and Convergence Technology, Research Institute for Green Energy Convergence Technology, Center for Creative Human Resource & Convergence Materials, Gyeongsang National University) ;
  • Shin, Pyeong-Su (Department of Materials Engineering and Convergence Technology, Research Institute for Green Energy Convergence Technology, Center for Creative Human Resource & Convergence Materials, Gyeongsang National University) ;
  • Kim, Jong-Hyun (Department of Materials Engineering and Convergence Technology, Research Institute for Green Energy Convergence Technology, Center for Creative Human Resource & Convergence Materials, Gyeongsang National University) ;
  • Lee, Hyung-Ik (Agency of Defense Development) ;
  • Park, Jong-Kyoo (Agency of Defense Development) ;
  • Park, Joung-Man (Department of Materials Engineering and Convergence Technology, Research Institute for Green Energy Convergence Technology, Center for Creative Human Resource & Convergence Materials, Gyeongsang National University)
  • 투고 : 2016.07.12
  • 심사 : 2016.08.19
  • 발행 : 2016.08.31
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초록

탄소나노튜브(CNT)에 에폭시를 혼합시킬 경우, 에폭시를 희석시키게 된다. 본 연구에서는 에폭시 희석조건이 CNT 분산도에 미치는 영향을 분석한 결과이다. 사용된 아세톤, DMF에 대한 희석방법이 에폭시 수지에 미치는 영향을, 기계적 강도 및 용해도로 확인하여 최적의 용매 조건을 선정하였다. 아세톤의 경우가 DMF보다 용해도 분산결과가 우수하였고, 기계적 강도가 높은 에폭시 수지 경화상태를 확인했다. CNT 입자를 혼합시키는 과정을 총 4가지 조건으로 실시하였다. 희석 및 분산 순서에 따른 영향을 확인하기 위해 전기저항 측정법과 빛 투과 분산도 평가방법으로 CNT 에폭시의 분산상태를 조사하였다. 기계적 물성 평가와 DSC를 이용한 열분석 방법으로 최적의 분산 조건을 구하였다. CNT를 분산시킨 4가지 중에서, 에폭시와 경화제를 각각 희석시킨 후 나노입자를 분산시키는 경우가 우수한 분산 결과를 나타내었다.

In case of CNT mixing with epoxy, epoxy matrix needs to be diluted. This work studied the effect of the dilution condition of epoxy on CNT dispersion. The optimum solvent condition using acetone and DMF was found via mechanical and solubility methods which affects, the epoxy performance. The dispersion using acetone was better than the DMF and thus higher mechanical properties. Four mixing types of CNT particle were performed. To verify the effects of each step between dilution and dispersion, the dispersion between epoxy and CNT was evaluated via the electrical resistance and optical methods. The optimum dispersion was obtained via mechanical test and thermal analysis by DSC. Among four types, the best was to disperse CNT after epoxy and hardeners were diluted respectively.

키워드

참고문헌

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  9. Barton, A.F.M., "CRC Handbook of Solubility Parameters and other Cohesion Parameter", CRC Press, Boca Raton, Fla, 1983, pp. 85.

피인용 문헌

  1. 전기저항측정법 및 젖음성을 이용한 나노복합재료의 미세파손 감지능 및 계면물성 평가 vol.30, pp.2, 2016, https://doi.org/10.7234/composres.2017.30.2.138