关键词: 水性防锈剂;硅酸锂;硅烷偶联剂;六甲基四胺;磷酸二氢锌

Abstract: A new type of water-based anti-rust agent and its preparation technology was studied, lithium silicate solution as the base material, adding Urotropine, coupling agent KH550, Zinc Biphosphate, organic acid to make a kind of water-based rust inhibitor with a synergistic effect.By experiments investigated the influence of compounded agents, got the optimum conditions according to orthogonal experiment:the amount of Lithium silicate solution which M was 4.0 is 84 g,the amount of Methenamine is 0.03 g,the amount of Zinc Biphosphate is 0.025 g, the amount of KH550 system is 0.25 mL, the amount of organic acid is 0.02 mL in per 200 mL.Under these conditions,the specimen was immersed for 5 min then drying at 25℃for 2 h,and the corrosion was observed after 233 s under CuSO4dropping corrosion test.The result of salt liquor immersion test was that the corrosion was carried out after 62 min and the corrosion shows after 361 h under NSS-test.All those results shows that rust inhibitor has excellent rust resistan.

Key words: water-based rust inhibitor;zinc biphosphate;lithium silicate;silane coupling agent;urotropine