Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
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Influence of Chemical Surface Treatment on Mechanical Interfacial Properties of Kevlar Fibers-Reinforced Composites

화학적 표면처리가 케블라 강화 복합재료의 기계적 계면특성에 미치는 영향

  • 박수진 (한국화학연구원 화학소재연구부) ;
  • 서민강 (한국화학연구원 화학소재연구부) ;
  • 마태준 (한국화학연구원 화학소재연구부) ;
  • 김학용 (전북대학교 섬유공학과(공업기술연구소)) ;
  • 이덕래 (전북대학교 섬유공학과(공업기술연구소))
  • Published : 2002.08.01
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Abstract

Fiber-matrix interfacial bond strength of composites is one of primary concerns for the prediction of composite behavior. including good mechanical properties and long retention durability. In this work. the effect of chemical surface treatment on Kevlar fibers has been studied in terms of the acid-base value and X-ray photoelectron spectroscopy(XPS). The mechanical interfacial properties of the final composites were also studied by critical stress intensity factor ( $K_{IC}$) and interlaminar shear strength(ILSS). Results showed that the chemical treatment conditions significantly affect the degree of adhesion at interfaces between fibers and the resin matrix. resulting in improving $K_{IC}$ and ILSS. This was probably due to the presence of chemical polar groups on Kevlar fiber surfaces, leading to the increase of interfacial binding force between fibers and the matrix In the composite system.m.

Keywords

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