Resources Recycling (자원리싸이클링)

The Korean Institute of Resources Recycling (한국자원리싸이클링학회)
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Effects of PE (Polyethylene) and GF (Glass Fiber) Addition on Tensile Strength and Elongation of ABS (Acrylonitrile Butadiene Styrene) Recovered from Waste LCDs

폐(廢)LCD에서 회수(回收)된 ABS(Acrylonitrile Butadiene Styrene)의 인장강도(引張强度)와 연신율(延伸率)에 미치는 PE(Polyethylene)와 유리섬유(纖維)(Glass Fiber) 첨가효과(添加效果)

  • Lee, Sungkyu (Advanced Materials & Processing Center, Institute for Advanced Engineering (IAE)) ;
  • Cho, Sung-Su (Advanced Materials & Processing Center, Institute for Advanced Engineering (IAE)) ;
  • Lee, Soo-Young (Advanced Materials & Processing Center, Institute for Advanced Engineering (IAE)) ;
  • Park, Jae Layng (Advanced Materials & Processing Center, Institute for Advanced Engineering (IAE)) ;
  • Hong, Myung Hwan (Advanced Materials & Processing Center, Institute for Advanced Engineering (IAE)) ;
  • Hong, Hyun Seon (Advanced Materials & Processing Center, Institute for Advanced Engineering (IAE))
  • 이성규 (고등기술연구원 신소재공정센터) ;
  • 조성수 (고등기술연구원 신소재공정센터) ;
  • 이수영 (고등기술연구원 신소재공정센터) ;
  • 박재량 (고등기술연구원 신소재공정센터) ;
  • 홍명환 (고등기술연구원 신소재공정센터) ;
  • 홍현선 (고등기술연구원 신소재공정센터)
  • Received : 2012.12.12
  • Accepted : 2013.03.11
  • Published : 2013.06.30
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Abstract

Recycled plastic composites of ABS/PE (50/50 and 20/80) and ABS/GF (90/10) were fabricated from plastic components of waste LCDs and effects of PE composition on elongation of ABS/PE composites were investigated. Increased PE contents improved elongation of the composite from 2.4% to 13%, which was attributed to increased crystalline behavior of the ABS/PE composite afforded by ductile PE fraction: SEM fractographs showed some sign of plastic deformation of PE matrix before ductile fracture of the composites.

폐 디스플레이에서 발생하는 플라스틱을 재활용하여 실용적이고 경제성 있는 재생복합소재의 개발에 기여할 목적으로 ABS/PE(50/50과 20/80), ABS/GF (90/10) 복합 소재의 조성이 연신율에 미치는 효과를 연구하였다. PE 함량을 50%에서 80%로 증가시킨 폐플라스틱 재생복합소재의 인장시험 결과 전반적으로 연신율이 2.4%에서 13%로 증가하는 것이 관찰되었으나 유리섬유 첨가 시 인장강도와 연신율 모두 현저하게 감소하였다. 이러한 사실에 비추어 볼 때 PE의 함량에 따라 인장강도 등 다양한 기계적 특성의 조절이 가능함을 알 수 있었고 무엇보다도 플라스틱 사출성형에 투입되는 재생복합소재의 특성 중 아주 중요한 연신율을 향상시키는데 PE의 효과가 현저함을 알 수 있었다. 이는 ABS 자체의 우세한 비정질성이 결정성을 띈 PE의 첨가로 인해서 광범위하게 결정화된 결과 폐플라스틱 입자들 사이의 전단 응력이 감소하기 때문인 것으로 간주된다.

Keywords

References

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