Composites Research

  • 제29권4호
  • /
  • Pages.216-222
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  • 2016
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  • 2288-2103(pISSN)
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  • 2288-2111(eISSN)
한국복합재료학회 (The Korean Society for Composite Materials)
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대기 조건에서 경화가 가능한 텅스텐계 p-DCPD의 개선된 성형 방법

An Improved Manufacturing Method of p-Dicyclopentadiene (DCPD) using Tungsten Type Catalyst in Air Condition

  • Kwon, Dong-Jun (Department of Materials Engineering and Convergence Technology, Research Institute for Green Energy Convergence Technology, Center for Creative Human Resource & Convergence Materials, Gyeongsang National University) ;
  • Shin, Pyeong-Su (Department of Materials Engineering and Convergence Technology, Research Institute for Green Energy Convergence Technology, Center for Creative Human Resource & Convergence Materials, Gyeongsang National University) ;
  • Kim, Jong-Hyun (Department of Materials Engineering and Convergence Technology, Research Institute for Green Energy Convergence Technology, Center for Creative Human Resource & Convergence Materials, Gyeongsang National University) ;
  • Park, Joung-Man (Department of Materials Engineering and Convergence Technology, Research Institute for Green Energy Convergence Technology, Center for Creative Human Resource & Convergence Materials, Gyeongsang National University)
  • 투고 : 2016.06.24
  • 심사 : 2016.08.19
  • 발행 : 2016.08.31
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초록

폴리디싸이클로팬타디엔 (p-DCPD) 수지를 경화하기 위해 개환반응이 사용된다. 이 반응은 텅스텐계 촉매를 이용한 반응이기 때문에 질소 조건에서 반응이 진행되어야 한다. 왜냐하면, 텅스텐계 수지는 촉매독 현상이 발생될 수 있기 때문에 대기조건에서는 사용이 어려운 것으로 알려져 있다. 이러한 문제를 개선하기 위해 본 연구에서는 대기 조건에서 텅스턴 (W)을 촉매로한 p-DCPD 대해 프레스 성형법을 이용하여 수지를 경화시켰다. 프레스 성형을 통해 p-DCPD (W) 수지를 경화시킬 경우 기계적 강도가 향상되는 결과를 얻었으며, 이는 DCPD 성형 단계에서 발생되는 기체를 압으로 눌러 미세 기공의 발생을 줄였기 때문이다. 촉매 독 현상이 발생되는 것은 반응시간이 길 때에 발생되지만, 짧은 성형을 시도하는 프레스 성형에서는 촉매 자체로 인한 물성 저하가 발생되지 않았다. 궁극적으로 p-DCPD 성형을 위해 대기 조건에서 성형이 가능하였으며, 경화 시간, 압력 변수를 조절할 경우 기계적 물성이 향상을 확인하였다.

Ring-opening metathesis polymerization of p-dicyclopentadiene (DCPD) can be performed using the tungsten type catalyst. This reaction usually progresses in nitrogen condition, because the catalysts are extremely sensitive in air condition. To solve this problem, DCPD resin with tungsten (W) was cured using hot press after stirring of DCPD A and B liquid in air condition. Mechanical properties of DCPD were improved by reducing microvoid occurrence successfully by using hot press method. It might be because hot press could provide sufficient press on DCPD specimen. Addition of catalyst was not effective for the curing of resin in a short time. During polymerization, pressure and temperature had a great influence on the mechanical properties of DCPD.

키워드

참고문헌

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