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 °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.

防止腐蚀的柔性阻隔膜对于从工程到医疗再到电子材料的许多行业都很重要。需要提高铝合金的耐腐蚀性能。将与氢氧化钠反应的铝合金样品浸入双-[3-(三乙氧基化)硅-丙基]四硫化物和石墨烯（BTESPT/rGO）中，在100℃烘箱中固化制备BTESPT/rGO复合膜，讨论其成膜机理。结果表明，薄膜致密且疏水，有助于提高薄膜对腐蚀性离子的阻隔性能，其耐腐蚀性明显优于单层BTESPT薄膜。BTESPT/rGO复合膜的腐蚀电流密度比铝合金基板低三个数量级。