Heat-stabilized flame-retardant polymer composition

Abstract

A polymer composition is provided that includes about 20 wt.% to about 70 wt.% of a polymer matrix including a polyamide; about 10 wt.% to about 50 wt.% of inorganic fibers; about 5 wt.% to about 30 wt.% of a flame retardant system including an organophosphorus compound; and about 0.1 wt.% to about 5 wt.% of a stabilizer system including a heat stabilizer. The heat stabilizer includes a copper compound. The polymer composition exhibits an initial tensile strength and an aged tensile strength after exposure to a temperature of 200° C. for 1,000 hours. The ratio of the aged tensile strength to the initial tensile strength is about 0.5 or greater.

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