▎ 摘　　要

NOVELTY - Polyphenylene sulfide engineering plastic comprises polyphenylene sulfide resin, modified glass fiber, compatibilizer, antioxidant, lubricant and additive agent, where the modified glass fiber is obtained by sequentially reacting hydroxylation solution, silane and modified graphene. USE - Polyphenylene sulfide engineering plastic. ADVANTAGE - The engineering plastic has excellent toughness and processability, and excellent notched impact strength and bending strength. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a preparation method of the engineering plastic, involving adding the polyphenylene sulfide resin, compatibilizer, antioxidant, lubricant and additive agent from a main feeding port of a twin-screw extruder after mixing, feeding the modified glass fiber from a side feeding port of the twin-screw extruder, melting, extruding, and granulating to obtain the engineering plastic.