Reinforced polyamide composites

Abstract

A reinforced polyamide composites comprising polyamide resin, 1 to 60 weight percent fiber and/or talc, and 0.1 to 5 phr (part per hundred by resin) interfacial modifier, based on the weight of the polyamide composites; wherein the interfacial modifier are functional organic compounds of structural formula: R.sub.1 (CO.sub.2 H)x; R.sub.1 (CO).sub.2 NH; and R.sub.1 (CO).sub.2 O, where R.sub.1, R.sub.2, R.sub.3 may be aliphatic or aromatic hydrocarbyl group; the number of carbon atoms in R.sub.1, R.sub.2 and R.sub.3 is in the range of 2 to 16, preferably 2 to 12; and x=1 to 4. The interfacial modifier can be mixed with glass and/or talc and polyamide simultaneously and compounded directly; or, premix the interfacial modifier and polyamide, melt the premix, then incorporate glass fiber and/or talc and compound to form the reinforced polyamide composites. The physical properties of the instant composites can be improved significantly.

Dependencies are inferred from the claim text.