대한기계학회논문집A (Transactions of the Korean Society of Mechanical Engineers A)

  • 제30권7호
  • /
  • Pages.779-786
  • /
  • 2006
  • /
  • 1226-4873(pISSN)
  • /
  • 2288-5226(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
권호 표지
DOI QR코드

DOI QR Code

사이잘 섬유 강화 복합재료의 기계적 특성에 미치는 표면처리와 흡습의 영향

Effects of Water Absorption and Surface Treatment on Mechanical Properties of Sisal Textile Reinforced Composites

  • 김효진 (전북대학교 공과대학 기계설계학과) ;
  • 서도원 (전북대학교 공과대학 기계설계학과) ;
  • 박한주 (전북대학교 공과대학 기계설계학과) ;
  • 전양배 (전북대학교 공과대학 기계설계학과) ;
  • 임재규 (전북대학교 기계항공시스템공학부, 공학연구원 공업기술연구센터)
  • 발행 : 2006.07.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

Woven sisal textile reinforced composites were manufactured to evaluate fracture toughness, and tensile test. All specimens were immersed in water five times. All specimens are immersed in pure water during 9 days at room temperature, and dried in 1 day at $50^{\circ}C$. Two kinds of polymer matrices such as epoxy and vinyl-ester were used. Fractured surface were investigated to study the failure mechanism and fiber/matrix interfacial adhesion. It is shows that it can be enhanced to improve their mechanical performance to reveal the relationship between fracture toughness and water absorption fatigue according to different polymer matrices. Water uptake of the epoxy composites was found to increase with cycle times. Mechanical properties are dramatically affected by the water absorption cycles. Water-absorbed samples observed poor mechanical properties such as lower values of maximum strength and extreme elongation. The $K_{IC}$ values demonstrate a decrease in inclination with increasing cyclic times of wetting and drying fur the epoxy and vinyl-ester.

키워드

참고문헌

  1. Cichocki Jr., F. R. and Thomason, J. L., 2002, 'Thermoelastic Anisotropy of a Natural Fiber,' Composites Science and Technology, Vol. 62, No. 5, pp. 669-678 https://doi.org/10.1016/S0266-3538(02)00011-8
  2. Trimble, L. C., Waid, R. L. and Connolly, W. J., 1982, 'Composite Cold Water Pipe for Ocean an Rhermal Energy Conversion(OTEC) Systrnes,' 37th Ann. Conf. Rein. Plas./Compos. Inst., The SPI, Inc. Sec. 26-B
  3. Li, Y, Mai, Y.W. and Ye, L., 2002, 'Sisal Fiber and Its Composites: a Review of Recent Developments,' Composites Science and Technology, Vol. 60, No. 11, pp. 2052-2053 https://doi.org/10.1016/S0266-3538(00)00101-9
  4. Annual books of ASTM standards, 1991, Plastics D570, Vol. 8, No. 1, pp. 139-141
  5. Annual books of ASTM standards, 1991, Plastics D638-89, Vol. 8, No. 1, pp. 169-178
  6. Annual books of ASTM standards, 1991, Plastics D5045-96, Vol. 8, No. 3, pp. 313-321
  7. Moon C. K. and Takaku A., 2005, :Polymer Matrix Composites,' Sigmapress, pp. 351-364