Journal of Adhesion and Interface (접착 및 계면)

The Society of Adhesion and Interface, Korea (한국접착및계면학회)
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Improvement of Interfacial Adhesion of Plasma Treated Single Carbon Fiber Reinforced CNT-Phenolic Nanocomposites by Electrical Resistance Measurement and Wettability

젖음성 및 전기저항 측정을 이용한 플라즈마 처리된 단일 탄소섬유 강화 탄소나노튜브-페놀수지 나노복합재료의 계면접착력 향상

  • Wang, Zuo-Jia (School of Materials Science and Engineering, Engineering Research Institute, Gyeongsang National University) ;
  • Kwon, Dong-Jun (School of Materials Science and Engineering, Engineering Research Institute, Gyeongsang National University) ;
  • Gu, Ga-Young (School of Materials Science and Engineering, Engineering Research Institute, Gyeongsang National University) ;
  • Park, Jong-Kyoo (4-R&D Center, Agency for Defense Development) ;
  • Lee, Woo-Il (School of Mechanical and Aerospace Engineering, Seoul National University) ;
  • Park, Joung-Man (School of Materials Science and Engineering, Engineering Research Institute, Gyeongsang National University)
  • 왕작가 (경상대학교 나노.신소재공학부, 공학연구원) ;
  • 권동준 (경상대학교 나노.신소재공학부, 공학연구원) ;
  • 구가영 (경상대학교 나노.신소재공학부, 공학연구원) ;
  • 박종규 (국방과학연구소 제4연구개발본부) ;
  • 이우일 (서울대학교 기계.항공공학부) ;
  • 박종만 (경상대학교 나노.신소재공학부, 공학연구원)
  • Received : 2011.07.05
  • Accepted : 2011.08.17
  • Published : 2011.09.30
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Abstract

Optimal dispersion and fabrication conditions of carbon nanotube (CNT) embedded in phenolic resin were determined by electrical resistance measurement; and interfacial property was investigated between plasma treated carbon fiber and CNT-phenolic composites by electro-micromechanical techniques. Wettability of carbon fiber was improved significantly after plasma treatment. Surface energies of carbon fiber and CNT-phenolic nanocomposites were measured using Wilhelmy plate technique. Since surface activation of carbon fiber, the advancing contact angle decreased from $65^{\circ}$ to $28^{\circ}$ after plasma treatment. It was consistent with static contact angle results of carbon fiber. Work of adhesion between plasma treated carbon fiber and CNT-phenolic nanocomposites was higher than that without modification. The interfacial shear strength (IFSS) and apparent modulus also increased with plasma treatment of carbon fiber.

페놀수지에 함침된 탄소나노튜브 (CNT)의 최적 분산제조공정은 전기저항 측정으로 구해졌으며, 플라즈마 처리된 탄소섬유와 CNT-페놀수지 나노복합재료간의 계면특성이 전기-미세역학시험법에 의해 연구되었다. 탄소섬유의 젖음성은 플라즈마 처리 후에 현격하게 증가되었다. 탄소섬유와 CNT-페놀수지 나노복합재료의 표면에너지는 Wilhelmy 플레이트 시험법으로 측정되었다. 탄소섬유 표면의 활성화로 인하여 플라즈마 처리 후 전진 접촉각은 $65^{\circ}$에서 $28^{\circ}$로 감소되었다. 이는 정적 접촉각과 상호 일치함을 보여 주었다. 플라즈마 처리된 탄소섬유와 CNT-페놀수지 나노복합재료간의 접착일은 플라즈마 처리전보다 증가하였다. 또한, 계면전단강도와 겉보기 강성도 탄소섬유에 대한 플라즈마 처리로 증가하였다.

Keywords

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