Recycling of PC/ABS Blend Used in Instrument Panel of Automotive

자동차 Instrument Panel에 사용된 PC/ABS계의 재활용

  • Lee, Chang Hyung (Department of Chemistry, National Institute of Technology & Quality) ;
  • Jung, In Kwon (Department of Chemistry, National Institute of Technology & Quality) ;
  • Lee, Yong Moo (Department of Chemistry, National Institute of Technology & Quality) ;
  • Oak, Sung Hyun (KIA Technical Center, KIA Motors Corp.) ;
  • Choi, Hyeong Ki (Department of Chemistry, National Institute of Technology & Quality)
  • 이창형 (국립기술품질원 화학부) ;
  • 정인권 (국립기술품질원 화학부) ;
  • 이용무 (국립기술품질원 화학부) ;
  • 옥성현 (기아자동차(주) 기아기술센타) ;
  • 최형기 (국립기술품질원 화학부)
  • Received : 1998.08.14
  • Accepted : 1998.09.28
  • Published : 1999.02.10

Abstract

The recycle of the polycarbonate(PC)/acrylonitrile-butadiene-styrene(ABS) separated from the instrument panel (In-Panel) of the automotive was investigated. The small amount of polyurethane(PU) foam contained in the separated PC/ABS decreased the mechanical properties of the recycled PC/ABS. However, it is found that the PU foam formed the dispered phase of small particles at high temperature ($260^{\circ}C$) under high shear of the twin extruder, whereas it formed the big particles at low extrusion temperature ($220^{\circ}C$). The mechanical properties of the recycled PC/ABS extruded at high temperature was better than those at low temperature, which enabled the recycled PC/ABS seperated from In-Panel to be applied to the radiator grille without the addition of the compatibilizers or virgin PC/ABS. This was ascribed to the smaller particle sizes of the PU foam formed at high extrusion temperature under high shear.

Acknowledgement

Supported by : 환경부

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