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

  • 제26권5호
  • /
  • Pages.813-821
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  • 2002
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  • 1226-4873(pISSN)
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  • 2288-5226(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
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고속압밀법에 의해 제작된 유리섬유강화 PET 기지 복합재료의 최적제작조건

Optimal Manufacturing Conditions of Glass Fiber Reinforced PET Matrix Composites by Rapid Press Consolidation Technique

  • 이동주 (영남대학교 기계공학부) ;
  • 신익재 (영남대학교 대학원 기계공학부과) ;
  • 김홍건 (전주대학교 기계공학과)
  • 발행 : 2002.05.01
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초록

Glass fiber reinforced PET matrix composite was manufactured by rapid press consolidation technique as functions of temperature, pressure and time in pre-heating, consolidation and solidification stages. The optimal manufacturing conditions for this composite were discussed based on the void content, tensile, interlaminar shear and impact properties. In addition, the levels of crystallinity with various manufacturing conditions were measured using differential scanning calorimetry to investigate the mechanical properties of this composite material as a function of crystallinity. Among many processing parameters, the mold temperature and the cooling rate after forming were found to be the most critical factors in determining the level of crystallinity and mechanical properties. The level of crystallinity affects the tensile properties to some degree. However, impact properties are affected much more. It also affects the degree of ductility, which determines the impact energy of this material.

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참고문헌

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