| 摘要 |
Vacuum-braking force-amplifier line comprises a polyamide-blend molding composition with a polyamide-blend-proportion and an impact resistant component, where the polyamide-blend-proportion comprises (a) at least one semicrystalline polyamide (PA) with a melting enthalpy of more than 40 J/g and an average of at least 8 carbon atoms per monomer unit, e.g. PA 11 or PA 618; (b) at least one amorphous and/or micro-crystalline polyamide, (c) at least one polyamide made from the impact resistant component, (d) a non-polyamide elastomer or its mixture, and (e) optionally an additive. Vacuum-braking force-amplifier line comprises a polyamide-blend molding composition with a polyamide-blend-proportion and an impact resistant component, where the polyamide-blend-proportion of the molding composition comprises (in wt.%, based on the total weight of the molding composition) (a) at least one semicrystalline polyamide (PA) with a melting enthalpy of more than 40 J/g and an average of at least 8 carbon atoms per monomer unit, preferably PA 11, PA 610 , PA 612, PA 1010, PA 106, PA 106/10T, PA 614 or PA 618 (25-65); (b) at least one amorphous and/or micro-crystalline polyamide (0-25), where the micro-crystalline polyamide exhibits a melting enthalpy of 4-40 J/g, (c) at least one polyamide with an average of a maximum of 6 carbon atoms per monomer unit (1-55), that is made from the impact resistant component, (d) a non-polyamide elastomer or its mixture (5-35), and (e) optionally an additive (made up to 100). The vacuum-braking force-amplifier line is formed as a single layer extruded tube, and exhibits a modulus of elasticity of at least 50 MPa at 180[deg] C, where the average number of carbon atoms per monomer unit is calculated from the sum of the number of carbon atoms in the used monomers divided by the number of the used monomers. |
