| 摘要 |
PURPOSE: Provided are a preparation method of resin complex comprising polyurethane, polystyrene, polybutadiene and hot-melt resin and their compositions which are easy to adjust physical property. These resin complex compositions have no plasticizer or PVC and the environment problem encountered in using soft PVC is eliminated, but they have good mechanical property and high frequency work is possible on them. CONSTITUTION: The preparation method of the resin complex comprises introducing first 10-70wt. part of polyurethane, 5-50wt. part of polystyrene and 5-50wt. part of polybutadiene to the raw material input aperture through the heat melt mixed extruder heated to 180-210 deg.C and adding second raw materials such as commercial reactive material together with 0-10wt. part of hot melt resin and mixing them in heat-melt state. |
