The Environmental Degradability of Starch-Polyethylene Composite Film

전분-폴리에틸렌 복합필름의 환경분해성

  • Kim, Young-Gi (Technology Research Institute, Sun Hill Glucose Co., Ltd.) ;
  • Park, Young-Hoon (The Department of Polymer Science Engineering, College of Engineering, Sooncheon National University) ;
  • Im, Seung-Soon (The Department of Textile Engineering, College of Engineering, Hanyang University)
  • 김영기 (선일포도당 기술연구소) ;
  • 박영훈 (순천대학교 공과대학 고분자공학과) ;
  • 임승순 (한양대학교 공과대학 섬유공학과)
  • Received : 1993.01.06
  • Accepted : 1993.02.01
  • Published : 1993.03.01

Abstract

Degradation of the starch-polyethylene composite film by an activated sludge treatment and a soil burial test was examined. The treated films had deformed structures which were resulted from the removal of starch during the treatments. The added auto-oxidant caused the degradation of the polyethylene matrices and the crosslinking reactions after the oxidation of polyethylene chains as well. As a result of soil burial test, the degradation reaction of the composite film containing corn oil as an auto-oxidant was, however, prevalent : number- and weight-average molecular weight of polyethylene decreased, while the molecular weight distribution increased.

Keywords