POLYAMIDE RESIN COMPOSITION AND MANUFACTURING METHOD THEREFOR

摘要

PROBLEM TO BE SOLVED: To provide a polyamide resin composition having especially enhanced retention rate of tensile strength even during long term use under high temperature environment.SOLUTION: There is provided a polyamide resin composition containing total 100 pts.mass of a crystalline polyamide resin (A) of 50 to 95 pts.mass and an amorphous polyamide resin (B) of 5 to 50 pts.mass, with 0.1 to 3 pts.mass of polyethylene imine (C), 0.1 to 3 pts.mass of a coupling agent (D) and 0 to 100 pts.mass of a fiber reinforcement material (E). The polyamide resin composition has tensile strength retention rate after treated at 200°C for 2000 hours of 70% or more.SELECTED DRAWING: None