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Effect of Silane Coupling Agent on Physical Properties of Polypropylene (PP)/Kenaf Fiber (KF) Felt Composites

폴리프로필렌/케나프 섬유 펠트 복합체 물성에 대한 실란커플링제의 영향

  • Ku, Sun Gyo (Major in Polymer Science and Engineering (Institute of IT Convergence Technology), Kongju National University) ;
  • Kim, Yu Shin (Major in Polymer Science and Engineering (Institute of IT Convergence Technology), Kongju National University) ;
  • Kim, Dong Won (Seoyounewha, Anyang) ;
  • Kim, Ki Sung (Seoyounewha, Anyang) ;
  • Kim, Youn Cheol (Major in Polymer Science and Engineering (Institute of IT Convergence Technology), Kongju National University)
  • 구선교 (공주대학교 고분자공학전공(IT 융합기술연구소)) ;
  • 김유신 (공주대학교 고분자공학전공(IT 융합기술연구소)) ;
  • 김동원 (서연이화) ;
  • 김기성 (서연이화) ;
  • 김연철 (공주대학교 고분자공학전공(IT 융합기술연구소))
  • Received : 2017.09.27
  • Accepted : 2017.11.07
  • Published : 2018.02.10

Abstract

In order to increase the compatibility of polypropylene (PP) and kenaf fiber (KF) felt, PP/KF and PP/KF/polyurethane (PU) felt composites were prepared by treating KF with three kinds of silane coupling agents. The concentration of silane coupling agents was fixed at 1 wt%. The chemical reaction between KF and silane coupling agents was confirmed by the existence of Si-O-Si and Si-O-C functional group bands appeared on FT-IR and X-ray photoelectron spectra (XPS). Thermal properties of PP/KF composites were investigated by DSC and TGA, and the thermal stability of PP/KF composites with treated KF increased. Based on tensile, flexural and impact properties of PP/KF and PP/KF/PU composites, 1-2 wt% of (3-aminopropyl)triethoxysilane (APS) contents were the optimum formulation as a compatibilizer. The tensile and flexural strength of the felt composites treated with the silane coupling agents were improved. This is mainly due to the improvement in the compatibility between PP and KF, which was confirmed by SEM images of the fractured surfaces after tension tests.

Keywords

polypropylene;kenaf fiber;polyurethane;silane coupling agent;felt composite

Acknowledgement

Supported by : 한국산업기술진흥원, 한국에너지기술평가원(KETEP)

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