COMPOSITE METAL AND POLYMER PART, USE IN PARTICULAR IN THE AUTOMOTIVE FIELD

摘要

The invention relates essentially to a composite part including at least one sheet of steel coated with at least one polymer film previously formed by extruding a polymer blend comprising at least the following elements: a polymer made up of a dispersion of elastomer nodules in a polypropylene matrix, the proportion of elastomer in the matrix being less than 20 wt% of the total of the matrix and the elastomer; a first antioxidant of the phenolic antioxidant family for a content no lower than 0.2 wt%; a second antioxidant of the hydrogen peroxide decomposing antioxidant family for a content no lower than 0.1 wt%; and reinforcing fillers for a content of less than 10 wt%. The invention also relates to a method for manufacturing said composite part and to the use of said composite part in the field of automobiles and transport.