한국공작기계학회논문집 (Transactions of the Korean Society of Machine Tool Engineers)

한국생산제조학회 (The Korean Society of Manufacturing Technology Engineers)
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감마선 조사에 의한 초고분자량 폴리에틸렌의 기계적 특성 변화

Effect of ${\gamma}-ray$ Irradiation on Mechanical Properties of Ultra-High Molecular Weight Polyethylene

  • 이종대 (경기공업대학 정밀기계과) ;
  • 정선환 (금오공과대학 기계공학부) ;
  • 최성대 (금오공과대학 기계공학부) ;
  • 김현묵 ((주)오티스바이오텍 인공관절연구소)
  • 발행 : 2008.06.15
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초록

Uniaxial tension and compression test were conducted on conventional and crosslinked ultra-high molecular polyethylene (UHMWPE) all prepared from the same lot of medical grade GUR 1050. The conventional materials were unirradiated and gamma irradiated with $25kGy{\sim}200kGy$. Gamma irradiated processing was found to significantly impact the crystallinity, and hence the mechanical behavior, of the highly crosslinked UHMWPE. The crystallinity and radiation dose were key predictors of the uniaxial yielding, hardness, plastic flow, and failure properties of conventional and highly crosslinked UHMWPE. The correlation model from experiments would be the basic information to design the liner of artificial joint.

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참고문헌

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