산화촉진제 첨가가 플라스틱 필름의 물성과 분해에 미치는 영향

Abstract

If petroleum- derived plastic like a bio-based plastic was degradation, awareness like a global warming and environmental disasters will be decreased. Plastic film was produced by adding ferric ions according to concentration by using a pro-oxidant in polyolefin resin. Changes in tensile strength, elongation, and molecular weight were evaluated accord ing to the UV irradiation time. Increasing the amount of ferric ions resulted in more significant declines of physical prop erties, and also resulted in greater changes in molecular weight. After 100 hours of UV irradiation, tensile strength declined significantly in the film containing pro-oxidant as compared to the control. A similar effect was also observed in terms of elongation. The film containing pro-oxidant showed a 73.8% decrease in molecular weight after 100 hours of UV irradiation. The appropriate use of pro-oxidant can not only degrade plastic film but also control the time of degradation at the petro leum-derived plastic films. Further studies are necessary to investigate the conditions of plastic film degradation.