Research on the Trace Effect of Polyurethane Composite Extraction Tools
This article analyzes and studies polyurethane composites from the perspectives of physical and chemical properties.Based on the reaction characteristics,tool marks are extracted from four common scratch bearing objects:wood,metal,plastic,and paint surface.The silicone rubber molding method is used as a control experiment,and the feasibility of polyurethane composites replacing the silicone rubber molding method is determined by comparing the operation time,material properties,and extraction effect.
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