BASF has now developed Ultramid® Advanced N5H UN, a polyphthalamide (PPA) that can be manufactured into semi-finished parts by extrusion. The plastics company GEHR, Mannheim, Germany is using the new PPA to produce extruded stock shapes with a diameter of 50 millimeters. Ultramid® Advanced N offers excellent mechanics at elevated temperatures due to its semi-aromatic chemical structure. It shows excellent resistance to chemicals and hydrolysis, even in aggressive environments, as well as good sliding friction properties – and all this at temperatures above 100°C. Due to its low water uptake its mechanical properties remain stable over a wide temperature range.
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