화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Polymer(Korea), Vol.25, No.2, 218-225, March, 2001
Export Citation
화학환원 니켈도금 처리에 따른 탄소섬유 표면 및 복합재료의 기계적 계면 특성
Studies of Electroless Ni-Plating on Surface Properties of Carbon Fibers and Mechanical Interfacial Properties of Composites
박수진†, 장유신, 이재락
  • 한국화학연구소 화학소재연구부
Soo-Jin Park†, Yu-Sin Jang, and Jae-Rock Lee
  • Advanced Materials Division, Korea Research Institute of Chemical Technology, P.O. Box 107, Yusong, Taejon 305-600, Korea
E-mail:
초록
복합재료의 기계적 계면 특성을 향상시키기 위하여 탄소섬유에 무전해 니켈도금 표면처리를 하였으며, 표면처리된 PAN계 탄소섬유를 에폭시수지에 함침시켜 프리프레그법으로 일방향 탄소섬유/에폭시수지 복합재료를 제조하였다. 본 연구에서는 무전해 니켈도금으로 유기된 취성-연성 전이 특성을 가지는 Ni-P 합금의 양에 따른 복합재료의 층간전단강도(ILSS)와 충격강도의 차이를 조사하였다. 또한, 탄소섬유 표면 특성의 변화를 X-ray photoelectron spectroscopy(XPS)로 측정하였다. 그 결과, 무전해 니켈도금된 탄소섬유 표면의 O1s/C1s비 또는 니켈(Ni)과 인(P)이 증가되었으나 ILSS의 향상에는 큰 영향을 미치지 못하는 것을 알 수 있었다. 그러나, 무전해 니켈도금으로 탄소섬유 표면에 도입된 Ni-P 합금은 복합재료의 연성에 따른 충격강도를 향상시키는 것을 확인할 수 있었다.
The electroless plating of a metallic nickel on PAN-based carbon fiber surfaces was carried out to improve mechanical interfacial properties of the carbon fiber/epoxy resin composites which were unidirectionally fabricated by a prepregging method. In this work, the influence of Ni-P alloy concentration showing brittle-to-ductile transition was investigated on interlaminar shear strength (ILSS) and impact strength of the composites. The surface properties of carbon fibers were also measured by X-ray photoelectron spectroscopy (XPS). As the result, the O(1s)/C(1s) ratio or Ni and P amounts were increased with increasing electroless nickel plating time but the ILSS were not significantly improved, However, the impact properties was significantly improved in the presence of Ni-P alloy in the carbon fiber surface, resulting in an increase of the ductility of the composites.
Keywords:carbon fibers;epoxy resin;electroless Ni-plating;interlaminar shear strength;impact strength;ductility
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