▎ 摘　　要

NOVELTY - L-polylactic acid/hydroxyapatite/graphene oxide ternary composite material is prepared by (i) dispersing graphene oxide and hydroxyapatite in water to obtain graphene oxide solution and hydroxyapatite solution, (ii) mixing and stirring the graphene oxide solution and the hydroxyapatite solution, performing suction filtration, drying, and grinding into a powder to obtain a filler, (iii) dispersing the filler in ethanol solution to form a suspension, (iv) dissolving the L-polylactic acid in a chloroform solution, and adding the suspension after stirring to obtain a mixed solution, (v) curing the mixed solution at low temperature and drying in an oven to obtain the composite material. USE - As L-polylactic acid/hydroxyapatite/graphene oxide ternary composite material. ADVANTAGE - The catalyst has excellent hydrophilicity and excellent mechanical properties. The preparation method consumes low energy, has short production cycle, and adopts easy operation.