POLYAMIDS RESISTANT TO AGING UNDER THE ACTION OF HEAT

摘要

1. Thermoplastic molding materials containing A) 10-99.999 wt.% Polyamide; B) 0.001-20 wt.% Iron powder with a maximum particle size of 10 μm (d-value), which can be obtained by thermal decomposition of iron pentacarbonyl, and detects the surface area determined by the special BET method is from 0.1 to 5 m / g according to DIN ISO 9277; C) 0-70 wt.% of other additives, and the sum of the weight percent of components A) -C) is 100% .2. Thermoplastic molding materials according to claim 1, in which components B) detect a d-value from 1 to 5 μm. Thermoplastic molding materials according to claim 1, in which components B) detect a d-value from 3 to 35 μm. The thermoplastic molding compositions of claim 1, wherein components B) detect a carbon content of 0.05 to 1.2 g / 100 g (according to ASTM E 1019). Thermoplastic molding materials according to claim 1, in which components B) detect a detonation density of from 2.5 to 5 g / cm. Thermoplastic molding materials according to claims 1 to 5, in which components B) on the surface of the particles are coated with iron phosphate, iron phosphide or SiO. 7. The use of thermoplastic molding materials according to claims 1-6 for the production of fibers, films and molded products. 8. The use of thermoplastic molding materials according to claims 1-6 for producing molded products by means of vibrocontact or laser welding. 9. Fibers, films and molded products that can be obtained from thermoplastic molding materials according to claims 1-6.