▎ 摘　　要

Flexible barrier films preventing corrosion are important for many industries ranging from engineering to medical to electronic materials. It is necessary to improve the corrosion resistance of aluminum alloys. The aluminum alloy sample reacted with sodium hydroxide was immersed in a double -[3(triethoxylated) silicon-propyl] tetrasulfide and graphene(BTESPT/rGO) and cured in an oven at 100 degrees C to prepare a BTESPT/rGO composite film and discuss its film forming mechanism. The results shown that the film was dense and hydrophobic, which helped to improve the barrier properties of the film to corrosive ions, and its corrosion resistance was significantly better than that of a single BTESPT film. The corrosion current density of the BTESPT/rGO composite film was three orders of magnitude lower than that of the aluminum alloy substrate. The 240 h salt spray experiment shown that the BTESPT/rGO composite film greatly improved the corrosion resistance of the aluminum alloy substrate. (c) 2021 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.