Article
  • Studies of Electroless Ni-Plating on Surface Properties of Carbon Fibers and Mechanical Interfacial Properties of Composites
  • Park SJ, Jang YS, Lee JR
  • 화학환원 니켈도금 처리에 따른 탄소섬유 표면 및 복합재료의 기계적 계면 특성
  • 박수진, 장유신, 이재락
Abstract
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.

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.

Keywords: carbon fibers; epoxy resin; electroless Ni-plating; interlaminar shear strength; impact strength; ductility

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  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2023 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 2001; 25(2): 218-225

    Published online Mar 25, 2001

  • Received on Dec 22, 2000