▎ 摘　　要

NOVELTY - Preparing high-strength flame-retardant galactomannan-based composite film involves using galactomannan solution, bentonite suspension, graphene oxide dispersion, and borate solution, stirring and mixing the galactomannan solution, bentonite suspension, graphene oxide dispersion and borate solution for 8 to 72 hours, and pouring into the plate, evaporating and drying, and solidifying at 70 to 120 degrees C for 4 to 16 hours to obtain a galactomannan/bentonite/graphene oxide/borate composite film. USE - Method for preparing high-strength flame-retardant galactomannan-based composite film. ADVANTAGE - The method enables to prepare high-strength flame-retardant galactomannan-based composite film that has the characteristics of high strength, high flame retardancy and degradability, has tensile strength and toughness, limiting oxygen index that is 46.8%, which has good practicality.