Djakhdane Khaled*, Mecheri Aouinet, Abdelkader Dehbi.
The purpose of this study is deteriorating effect of natural ageing on tri-layer and mono- layer polyethylene films, used as glasshouse cover in the North Africa environment. The films were handed out by Agrofilm and composed of low denseness polyethylene (LDPE), holding admixture (e.g., color, infrared and ultraviolet stabilisers). Those films were used to strengthen and set up a real glasshouse situated in the northern of Algeria. The influence of growing old was, controlled by watching the modifications in mechanical (robustness and flexibility) features. The study has been conducted during a period of nine months of natural ageing. The films have been spontaneously matured and grow older. The results display that the environmental components have deteriorating effects on the sustainability and all properties mechanical of the polyethylene film. The study illustrate clearly that the degradation parameters evaluated are directly linked to standard for estimating the efficiency of using warmhouse farming. The consequence of temperature and UVA radiation generated the most significant degradation on the film surface and accordingly a decrease in the whole life existence of the material. The results revealed that the investigated climatic conditions have essential deteriorative effects on the performance of the film. The correlation between the modification in the material structure and the degradation in the film properties is discussed.