Proceedings of the Korean Society For Composite Materials Conference (한국복합재료학회:학술대회논문집)

The Korean Society for Composite Materials (한국복합재료학회)
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Interfacial Evaluation of Modified Jute and Hemp Fibers/Polypropylene (PP)-Maleic Anhydride Polypropylene Copolymers (PP-MAPP) Composites Using Micromechanical Test and Nondestructive Acoustic Emission

Micromechanical 시험법과 음향방출을 이용한 Flax 와 Hemp 섬유 강화 에폭시 복합재료의 계명 물성 평가

  • Son, Tran Quang (School of Materials Science and Engineering, Engineering Research Institute, Gyeongsang National University) ;
  • Hwang, Byung-Sun (Composite Materials Group,Korea Institute of Machinery and Materials) ;
  • Park, Joung-Man (School of Materials Science and Engineering, Engineering Research Institute, Gyeongsang National University)
  • Published : 2005.11.18
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Abstract

The surface energies and acid-base interaction between the untreated and treated Jute or Hemp fibers and different matrix compositions of polypropylene-maleic anhydride polypropylene copolymers (PP-MAPP) were investigated using dynamic contact angle measurement. The contribution of the acid-base property into the interfacial adhesion of the natural fibers/matrix systems were characterized by calculating the work adhesion coming from the acid-base interaction. On the other hand, microfailure mechanism of both single Jute and Hemp fiber bundles were investigated using the combination of single fiber tensile test and acoustic emission. Distinctly different micro failure modes of the different natural fiber/polypropylene systems wet ε observed using optical microscope and determined indirectly by AE and their FFT analysis.

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