Article
  • Effect of Prepreg Angle-Ply on the Dynamic, Mechanical, Tensile, Flexural, and Impact Properties of Non-Crimp Carbon Fiber Fabric/Epoxy Composites
  • Naeun Jeong and Donghwan Cho

  • Department of Polymer Science and Engineering, Kumoh National Institute of Technology, Gumi, Gyeongbuk 39177, Korea

  • 크림프가 없는 탄소섬유직물/에폭시 복합재료의 동역학, 인장, 굴곡 및 충격 특성에 미치는 프리프레그 Angle-Ply의 영향
  • 정나은 · 조동환

  • 금오공과대학교 고분자공학과

Abstract

Since unidirectional (UD) prepregs are anisotropic in the fiber alignment direction, the alignment angle of carbon fibers plays a significant role in the mechanical and thermal properties of carbon fiber/epoxy composites. Non-crimp carbon fiber fabric/epoxy composites with different angle-plies of [0°], [0°/90°], [0°/45°/90°], and [0°/30°/60°/90°] stacking sequences were prepared by compression molding. The effect of prepreg angle-ply on the properties of resulting composites was explored. The [0°] composite exhibited the highest dynamic mechanical, tensile, flexural and impact properties, whereas the [90°] composite exhibited the lowest properties. The properties of the [0°/90°], [0°/45°/90°], and [0°/30°/60°/90°] composites were intermediate between the [0°] and [90°] composites, depending on the angle-plies consisting of the composites. The present study indicates that prepreg angle-ply design should be importantly considered to manipulate their properties of non-crimp carbon fiber fabric-reinforced composites.


일방향(UD) 프리프레그는 섬유방향으로 이방성을 띠고 있기 때문에 탄소섬유의 배향각은 탄소섬유/에폭시 복합재료의 기계적, 열적 특성에 중요한 역할을 한다. [0°], [0°/90°], [0°/45°/90°], [0°/30°/60°/90°] 적층 순서에 따라 서로 다른 angle-ply를 갖는 크림프가 없는 탄소섬유직물/에폭시 복합재료를 압축성형으로 제조하고, 그들의 특성에 미치는 프리프레그 angle-ply 영향을 조사하였다. [0°] 복합재료는 가장 높은 동역학적, 인장, 굴곡 및 충격 특성을 나타낸 반면, [90°] 복합재료는 가장 낮은 특성을 나타냈다. [0°/90°], [0°/45°/90°], [0°/30°/60°/90°] 복합재료는 프리프레그 angle-ply에 따라 [0°]와 [90°] 복합재료 사이의 특성을 나타내었다. 본 연구는 크림프가 없는 탄소섬유직물강화 복합재료의 특성 제어를 위해 프리프레그 angle-ply 디자인이 중요함을 가리킨다


Keywords: non-crimp carbon fiber fabric/epoxy composite, unidirectional prepreg, angle-ply, compression molding, properties

  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2018 Impact Factor : 0.500
  • Indexed in SCIE

This Article

  • 2020; 44(1): 61-69

    Published online Jan 25, 2020

  • 10.7317/pk.2020.44.1.61
  • Received on Sep 17, 2019
  • Revised on Nov 18, 2019
  • Accepted on Nov 20, 2019

Correspondence to

  • Donghwan Cho
  • Department of Polymer Science and Engineering, Kumoh National Institute of Technology, Gumi, Gyeongbuk 39177, Korea

  • E-mail: dcho@kumoh.ac.kr