High-toughness high-temperature-resistant nylon composite material and preparation method thereof

The invention discloses a high-toughness high-temperature-resistant nylon composite material and a preparation method thereof, and the high-toughness high-temperature-resistant nylon composite material comprises the following components in parts by weight: 78-98.5 parts of high-temperature-resistant nylon matrix resin; 1-20 parts of a toughening modifier; and 0.5-2 parts of an antioxidant. According to the invention, the star-shaped nylon which has a specific single-arm molecular weight and a specific molecular structure and contains an ether bond as a core is adopted as the toughening modifier to be added into the high-temperature-resistant nylon matrix resin, so that on one hand, the melt fluidity of the high-temperature-resistant nylon matrix resin can be improved, and on the other hand, the toughness of the high-temperature-resistant nylon matrix resin can be improved; and the preparation method is simple and easy to industrialize. 本发明公开了一种强韧性耐高温尼龙复合材料及其制备方法，按重量份计，包括如下组分：耐高温尼龙基体树脂78~98.5份；增韧改性剂1~20份；抗氧剂0.