Abstract This research is an effort to produce a useful polymer from a post-consumer mixed polymer waste stream consisting primarily of polypropylene and polyethylene. Mixed waste flakes were milled to a fine powder by cryogenic impact mil領, and then injection molded into tensile test samples. The effect of incorporating nanoclay before mil領 was investigated. Despite the presence of porosity in the milled powder samples, the tensile properties were found to be higher than those of the unmilled polymer. Differential scanning calorimetry thermal analysis suggests the possibility of the formation of alloy between the immiscible polymers. q 2005 Elsevier Ltd. All rights reserved. Keywords : Plastic; Recycle; Nonoclay; Cryogenic mil領; Tensile properties SPEX6770 全自動冷凍研磨機 SPEX6870 全自動冷凍研磨機 SPEX6970EFM 冷凍研磨機