Applied Chemistry for Engineering (공업화학)
- Volume 4 Issue 1
- /
- Pages.178-187
- /
- 1993
- /
- 1225-0112(pISSN)
- /
- 2288-4505(eISSN)
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)
- 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.
전분-폴리에틸렌 복합필름을 활성오니시험과 토양매립시험에 의해 시험하였으며, 시험동안 전분의 분해에 의해 필름의 형태가 변함을 관찰할 수 있었다. 매트릭스로 사용한 폴리에틸렌은 첨가한 산화촉진제의 작용에 의해 산화되어 가교 및 분해가 모두 일어남을 알 수 있었다. 그러나 토양매립시험 결과로 볼 때 산화촉진제로 옥수수에서 추출한 오일을 사용하였을 경우 수평균분자량 및 중량평균분자량이 모두 감소하고 분자량 분포가 증가하는 분해반응이 우세하게 일어남을 알 수 있었다.
Keywords