Halogen-free flame-retardant polyamide (PA) composite and preparation method thereof

Abstract

A halogen-free flame-retardant polyamide (PA) composite includes the following components in parts by weight: 20 to 50 parts of an aliphatic PA, 10 to 30 parts of an aromatic PA, 20 to 30 parts of a halogen-free flame retardant, 10 to 50 parts of a glass fiber, 1 to 5 parts of a char-forming agent, and 0 to 5 parts of an additive, where the aromatic PA is at least one selected from the group consisting of PA66/6T, PA MXD6, and PA6T/6I and the char-forming agent is at least one selected from the group consisting of dipentaerythritol (DPE) and tripentaerythritol (TPE). In the halogen-free flame-retardant PA composite, the aromatic PA itself has high-temperature resistance and aging resistance and exhibits a synergistic effect with a dense carbon layer formed by the char-forming agent during aging. The present disclosure discloses a preparation method of the halogen-free flame-retardant PA composite.

Dependencies are inferred from the claim text.