화학공학소재연구정보센터
Journal of Applied Polymer Science, Vol.119, No.4, 1986-1991, 2011
The Role of the Disposition of the Recycled Polymer on the Properties of Films for Greenhouses Coverage
Multilayer films, by using postconsumer materials in the central layer, i.e., multilayer composition: virgin polyethylene/postconsumer polymer/virgin polyethylene, allows to get a film for greenhouses coverage with good mechanical properties and photo-oxidation resistance, similar to that of the films made from virgin material and certainly better than the photo-oxidation resistance of the film made melt blending the virgin polyethylene and the postconsumer polymer. Moreover, the disposition of the postconsumer polymer containing oxygenated groups only in the central layer determines a significant slowdown of the photo-oxidation process of the multilayer film although faster than of the pristine vPE film. (C) 2010 Wiley Periodicals, Inc. J Appl Polym Sci 119: 1986-1991, 2011