Halogen-free flame retardant glass fiber reinforced nylon as well as preparation method and application thereof

The invention belongs to an electricity & electronics industry, and provides halogen-free flame retardant glass fiber reinforced nylon. The halogen-free flame retardant glass fiber reinforced nylon is prepared from the following materials in percentage by weight: 30 to 50 percent of PA66, 3 to 15 percent of amorphous nylon, 14 to 25 percent of a halogen-free flame retardant, 30 to 40 percent of glass fiber, 0.1 to 0.5 percent of a lubricating agent, 0.2 to 0.6 percent of an antioxidant and 0.2 to 0.5 percent of a nucleating agent, wherein the halogen-free flame retardant is a composition of alkyl aluminum phosphate (OP), zinc borate and melamine pyrophosphate (MPP). A preparation method, provided by the invention, of the halogen-free flame retardant glass fiber reinforced nylon comprises the following steps: adding all the raw materials into a high-speed stirring machine for full and uniform mixing; after the raw materials are completely mixed, conveying the materials into a double-screw extruder through a me