▎ 摘　　要

NOVELTY - High-strength conductive polyolefin composite material comprises 70-90 pts. wt. hydroxyl-functionalized polyolefin, 5-8 pts. wt. graphene, 10-15 pts. wt. conductive carbon black, 4-6 pts. wt. 1-pyrene butyric acid, 30-40 pts. wt. tannic acid and 1-3 pts. wt. additives. USE - As high-strength conductive polyolefin composite material ADVANTAGE - The high-strength conductive polyolefin composite material has excellent conductivity and excellent mechanical properties. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing the high-strength conductive polyolefin composite material comprising (a) mixing hydroxyl-functionalized polyolefin, tannic acid and conductive carbon black in an aqueous solution, (b) adjusting the pH of the solution in step (b) to 2, harvesting the precipitate, and (c) mixing the precipitate in step (b) with graphene, 1-pyrene butyric acid and additives, and extruding to obtain a conductive polyolefin composite material.