▎ 摘　　要

NOVELTY - Preparing silane/molecular sieve/graphene oxide anticorrosive film on titanium alloy surface comprises e.g. (1) using tetrapropylammonium bromide as template agent, carrying out hydrothermal synthesis reaction in reactor under high temperature and high pressure conditions to obtain TS-1 molecular sieve, and centrifugal separation, washing, drying and grinding to obtain TS-1 molecular sieve powder, (2) dissolving vinyltriethoxysilane in an aqueous solution of ethanol in proportion and mixing to prepare vinyltriethoxysilane hydrolysate, adding TS-1 molecular sieve powder to prepare silane/TS-1 Molecular sieve suspension and hydrolyzing under magnetic stirring, (3) mixing graphene oxide dispersion liquid, silane/TS-1 molecular sieve suspension and dimethylformamide in proportion, and carrying out reaction while stirring magnetically to obtain a silane/TS-1 molecular sieve/graphene oxide composite solution, and (4) pre-treating surface of titanium alloy. USE - The method is useful for preparing silane/molecular sieve/graphene oxide anticorrosive film on titanium alloy surface. ADVANTAGE - The film: has good corrosion resistance, and corrosion resistance rate is as high as 99.8%. DETAILED DESCRIPTION - Preparing silane/molecular sieve/graphene oxide anticorrosive film on titanium alloy surface comprises (1) using tetrapropylammonium bromide as template agent, carrying out hydrothermal synthesis reaction in reactor under high temperature and high pressure conditions to obtain TS-1 molecular sieve, and centrifugal separation, washing, drying and grinding to obtain TS-1 molecular sieve powder, (2) dissolving vinyltriethoxysilane in an aqueous solution of ethanol in proportion and mixing to prepare vinyltriethoxysilane hydrolysate, adding TS-1 molecular sieve powder to prepare silane/TS-1 Molecular sieve suspension and hydrolyzing under magnetic stirring, (3) mixing graphene oxide dispersion liquid, silane/TS-1 molecular sieve suspension and dimethylformamide in proportion, and carrying out reaction while stirring magnetically to obtain a silane/TS-1 molecular sieve/graphene oxide composite solution, (4) pre-treating surface of titanium alloy, immersing in silane/TS-1 molecular sieve/graphene oxide composite solution, and reacting under magnetic stirring to form silane/molecular sieve/graphene oxide on surface of titanium alloy membrane, drying after taking out, and (5) hot-pressing titanium alloy with the silane/molecular sieve/graphene oxide anticorrosion film on hydraulic press, and cooling, i.e., completing preparation process of silane/molecular sieve/graphene oxide anticorrosion film on surface of titanium alloy.