Article
  • Interfacial Microstructure and Mechanical Properties of Glass Fiber/Polypropylene Resin Composites
  • Moon CK
  • 유리섬유/폴리프로필렌수지 복합재료의 계면조직 및 기계적성질
  • 문창권
Abstract
In the present study, a next method forming resin droplets on the fibers has been developed, and samples for the single fiber pull-out test were prepared using this method. The effects of microstructure of the PP resin matrix and the interface between the glass fiber and the PP resin on the interfacial strength have been investigated. The influences of microstructure of the interface on the mechanical properties of glass fiber reinforced PP composites have also been investigated. It has been found thats, in the pull-out test, the transcrytallinity formed at the interface improved the interfacial strength when no spherulites developed in the PP resin matrix. In contrast, in the case where the spherulites were well developed in the PP resin matrix, the transcrystallinity formed at the interface were found to reduce the interfacial strength. It has also been shown that, for the glass fiber reinforced PP composites, the formation of transcrystallinity at the interface reduced the interfacial strength.

본 연구에서는 유리섬유를 틀에 배열 고정시켜 그 위헤 polymer 실을 걸쳐 용융시켜 표면장력으로 섬유상에 resin droplet를 형성시키는 새로운 방법을 개발하고, 이 방법으로 단섬유 pull-out시험편을 제작하여 유리섬유와 PP수지의 계면과 PP수지의 조직상태가 계면강도에 미치는 영향을 검토했으며, 나아가 계면조직이 유리섬유/PP수지 복합재료의 기계적 성질에 미치는 영향을 비교검토했다. 단섬유 pull-out시험에서는 PP matrix 수지내에 구정의 발달없이 섬유와 수지의 계면에 형성된 transcrystallinity는 계면강도를 향상시킬 수가 있으나, matrix 수지내에서 구정이 크게 발달된 상태에서 transcrystallinity의 형성은 오히려 계면강도를 저하시켰다. 그리고 유리섬유/PP수지복합재료에서도 계면에 transcrystallinity를 형성시킨 것은 계면강도를 저하시켰다.

Keywords:

  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2022 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 1992; 16(5): 529-538

    Published online Sep 25, 1992

  • 10.7317/pk.
  • Received on Nov 30, -0001
  • Revised on Nov 30, -0001
  • Accepted on Nov 30, -0001

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