Korean Chemical Engineering Research

The Korean Institute of Chemical Engineers (한국화학공학회)
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Improvement of Tensile Strength of Polyester Resin Using Silica/Chopped Glass Fiber Modified by Coupling Agent

실란 처리된 실리카 및 절단 유리섬유에 의한 폴리에스테르 수지의 인장강도 향상

  • Lee, Jeon-Kyu (Department of Chemical Engineering, Pukyoung National University) ;
  • Kim, Si-Young (Department of Mechanical System Engineering, Pukyoung National University) ;
  • Ju, Chang-Sik (Department of Chemical Engineering, Pukyoung National University)
  • 이전규 (부경대학교 화학공학과) ;
  • 김시영 (부경대학교 기계시스템공학과) ;
  • 주창식 (부경대학교 화학공학과)
  • Received : 2011.05.27
  • Accepted : 2011.06.21
  • Published : 2012.02.01
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Abstract

For the purpose of development of polymeric material for marine applications, the effects of silica and chopped glass fiber on tensile strength of polyester resin were studied. A series of experiments were performed with different contents of silica and chopped glass fiber. Tensile strength of polyester resin was increased with the contents of unmodified glass fiber, and decreased with that of silica. The surfaces of silica and chopped glass fiber were modified with coupling agent at different concentrations, and the modification showed positive effect on the increase of tensile strength of polyester resin. Synergistic effect on the tensile strength of polyester resin was observed by modified silica and chopped glass fiber.

선박용 부품에 적용할 수 있는 고분자 소재를 개발하기 위한 연구의 일환으로, 폴리에스테르 수지의 인장강도에 미치는 실리카와 절단 유리섬유의 영향을 조사하였다. 실리카와 절단 유리섬유의 첨가량 및 표면 개질에 사용된 커플링제의 농도를 변화시키면서 실험을 수행하였다. 표면 개질을 수행하지 않은 경우, 유리섬유의 첨가량이 증가하면 인장강도가 증가하였으나, 실리카는 첨가량이 증가할수록 인장강도가 감소하였다. 커플링제를 사용하여 첨가제의 표면을 개질하면 인장강도에 긍정적인 효과를 나타내었으며, 개질된 실리카와 절단 유리섬유를 혼합 첨가하면 인장강도의 증가에 상승효과를 나타내는 것을 알 수 있었다.

Keywords

References

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