▎ 摘　　要

NOVELTY - Method for preparing amidated graphene/nylon-6 nanocomposite, involves (a) dispersing graphene oxide in deionized water, adding catalyst, uniformly stirring and activating carboxyl at room temperature, adding amino modifier, uniformly stirring and reacting at room temperature for 12-15 hours, filtering, washing and vacuum drying to obtain amide graphene powder, where the catalyst is (2-(N-morpholino)ethanesulfonic acid) (MES) buffer compounded with 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride and N-hydroxysuccinimide, and (b) adding amidated graphene and deionized water to caprolactam melt, ultrasonically stirring at 80-100 degrees C to form dispersion, moving the dispersion to high-temperature high-pressure reaction kettle under nitrogen atmosphere, increasing the temperature to 250-270 degrees C, and reacting under pressure of 0.4-0.6 MPa for 2-3 hours, reacting under vacuum for 1-2 hours to obtain polymer melt, water-cooling obtained polymer melt, and granulating. USE - The method used for preparing amidated graphene/nylon-6 nanocomposite (claimed) used as structural component in auto product, medical equipment and electronic appliance application. ADVANTAGE - The amidated graphene/nylon-6 nanocomposite material has excellent strength, toughness and processing performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for the amidated graphene/nylon-6 nanocomposite material prepared using above-mentioned method, having tensile strength of 69.9-74.1 MPa, elongation at break of 232-296%, notched impact strength of 8.8-15.6 kJ/m2, and melt index of 10.3-13.2 g/10 minutes.